GridView的详细用法

l GridView无代码分页排序

l GridView选中，编辑，取消，删除

l GridView正反双向排序

l GridView和下拉菜单DropDownList结合

l GridView和CheckBox结合

l 鼠标移到GridView某一行时改变该行的背景色方法一

l 鼠标移到GridView某一行时改变该行的背景色方法二

l GridView实现删除时弹出确认对话框

l GridView实现自动编号

l GridView实现自定义时间货币等字符串格式

l GridView实现用“...”代替超长字符串

l GridView一般换行与强制换行

l GridView显示隐藏某一列

l GridView弹出新页面/弹出新窗口

l GridView固定表头(不用javascript只用CSS，2行代码，很好用)

l GridView合并表头多重表头无错完美版（以合并3列3行举例）

l GridView突出显示某一单元格（例如金额低于多少，分数不及格等）

l GridView加入自动求和求平均值小计

l GridView数据导入Excel/Excel数据读入GridView

1.GridView简单代码分页排序：

1.AllowSorting设为True，aspx代码中是AllowSorting="True"；

2.默认1页10条，如果要修改每页条数，修改PageSize即可，在aspx代码中是PageSize="12"。

3.默认的是单向排序的，右击GridView弹出“属性”，选择AllowSorting为True即可。

4.添加代码:

protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)

{

GridView1.PageIndex = e.NewPageIndex;

Bind();

}

2.GridView选中，编辑，取消，删除：

后台代码：

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page

{

SqlConnection sqlcon;

SqlCommand sqlcom;

string strCon = "Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

bind();

}

}

protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

{

GridView1.EditIndex = e.NewEditIndex;

bind();

}

//删除

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)

{

string sqlstr = "delete from 表 where id=‘" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "‘";

sqlcon = new SqlConnection(strCon);

sqlcom = new SqlCommand(sqlstr,sqlcon);

sqlcon.Open();

sqlcom.ExecuteNonQuery();

sqlcon.Close();

bind();

}

//更新

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

{

sqlcon = new SqlConnection(strCon);

string sqlstr = "update 表 set 字段1=‘"

+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "‘,字段2=‘"

+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "‘,字段3=‘"

+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "‘ where id=‘"

+ GridView1.DataKeys[e.RowIndex].Value.ToString() + "‘";

sqlcom=new SqlCommand(sqlstr,sqlcon);

sqlcon.Open();

sqlcom.ExecuteNonQuery();

sqlcon.Close();

GridView1.EditIndex = -1;

bind();

}

//取消

protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

{

GridView1.EditIndex = -1;

bind();

}

//绑定

public void bind()

{

string sqlstr = "select * from 表";

sqlcon = new SqlConnection(strCon);

SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

DataSet myds = new DataSet();

sqlcon.Open();

myda.Fill(myds, "表");

GridView1.DataSource = myds;

GridView1.DataKeyNames = new string[] { "id" };//主键

GridView1.DataBind();

sqlcon.Close();

}

}

前台主要代码：

... ...

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"

ForeColor="#333333" GridLines="None" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"

OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit">

<FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />

<Columns>

<asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True" />

<asp:BoundField DataField="姓名" HeaderText="用户姓名" />

<asp:BoundField DataField="员工性别" HeaderText="性别" />

<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />

<asp:CommandField HeaderText="选择" ShowSelectButton="True" />

<asp:CommandField HeaderText="编辑" ShowEditButton="True" />

<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />

</Columns>

<RowStyle ForeColor="#000066" />

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

</asp:GridView>

3.GridView正反双向排序：

后台代码：

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

public partial class Default3 : System.Web.UI.Page

{ SqlConnection sqlcon;

string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=";

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

ViewState["SortOrder"] = "身份证号码";

ViewState["OrderDire"] = "ASC";

bind();

}

}

protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)

{

string sPage = e.SortExpression;

if (ViewState["SortOrder"].ToString() == sPage)

{

if (ViewState["OrderDire"].ToString() == "Desc")

ViewState["OrderDire"] = "ASC";

else

ViewState["OrderDire"] = "Desc";

}

else

{

ViewState["SortOrder"] = e.SortExpression;

}

bind();

}

public void bind()

{

string sqlstr = "select top 5 * from 飞狐工作室";

sqlcon = new SqlConnection(strCon);

SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

DataSet myds = new DataSet();

sqlcon.Open();

myda.Fill(myds, "飞狐工作室");

DataView view = myds.Tables["飞狐工作室"].DefaultView;

string sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"];

view.Sort = sort;

GridView1.DataSource = view;

GridView1.DataBind();

sqlcon.Close();

}

}

前台主要代码：

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"

CellPadding="3" Font-Size="9pt" OnSorting="GridView1_Sorting"
BackColor="White" BorderColor="#CCCCCC" BorderStyle="None"
BorderWidth="1px">

<FooterStyle BackColor="White" ForeColor="#000066" />

<Columns>

<asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />

<asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>

<asp:BoundField DataField="员工性别" HeaderText="性别" SortExpression="员工性别"/>

<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>

</Columns>

<RowStyle ForeColor="#000066" />

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

</asp:GridView>

4.GridView和下拉菜单DropDownList结合：

后台代码：

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

public partial class Default4 : System.Web.UI.Page

{

SqlConnection sqlcon;

string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

protected void Page_Load(object sender, EventArgs e)

{

DropDownList ddl;

if (!IsPostBack)

{

string sqlstr = "select top 5 * from 飞狐工作室";

sqlcon = new SqlConnection(strCon);

SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

DataSet myds = new DataSet();

sqlcon.Open();

myda.Fill(myds, "飞狐工作室");

GridView1.DataSource = myds;

GridView1.DataBind();

for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

{

DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];

if (Convert.ToString(mydrv["员工性别"]).Trim() == "True")

{

ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");

ddl.SelectedIndex = 0;

}

if (Convert.ToString(mydrv["员工性别"]).Trim() == "False")

{

ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");

ddl.SelectedIndex = 1;

}

}

sqlcon.Close();

}

}

public SqlDataReader ddlbind()

{

string sqlstr = "select distinct 员工性别 from 飞狐工作室";

sqlcon = new SqlConnection(strCon);

SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon);

sqlcon.Open();

return sqlcom.ExecuteReader();

}

前台主要代码：

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"

CellPadding="3" Font-Size="9pt" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">

<FooterStyle BackColor="White" ForeColor="#000066" />

<Columns>

<asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />

<asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>

<asp:TemplateField HeaderText="员工性别">

<ItemTemplate>

<asp:DropDownList ID="DropDownList1" runat="server"
DataSource=‘<%# ddlbind()%>‘ DataValueField="员工性别"
DataTextField="员工性别">

</asp:DropDownList>

</ItemTemplate>

</asp:TemplateField>

<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>

</Columns>

<RowStyle ForeColor="#000066" />

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

</asp:GridView>

5.GridView和CheckBox结合：

后台代码：

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

public partial class Default5 : System.Web.UI.Page

{

SqlConnection sqlcon;

string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

bind();

}

}

protected void CheckBox2_CheckedChanged(object sender, EventArgs e)

{

for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

{

CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");

if (CheckBox2.Checked == true)

{

cbox.Checked = true;

}

else

{

cbox.Checked = false;

}

}

}

protected void Button2_Click(object sender, EventArgs e)

{

sqlcon = new SqlConnection(strCon);

SqlCommand sqlcom;

for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

{

CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");

if (cbox.Checked == true)

{

string sqlstr = "delete from 飞狐工作室 where 身份证号码=‘" + GridView1.DataKeys[i].Value + "‘";

sqlcom = new SqlCommand(sqlstr, sqlcon);

sqlcon.Open();

sqlcom.ExecuteNonQuery();

sqlcon.Close();

}

}

bind();

}

protected void Button1_Click(object sender, EventArgs e)

{

CheckBox2.Checked = false;

for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

{

CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");

cbox.Checked = false;

}

}

public void bind()

{

string sqlstr = "select top 5 * from 飞狐工作室";

sqlcon = new SqlConnection(strCon);

SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

DataSet myds = new DataSet();

sqlcon.Open();

myda.Fill(myds, "tb_Member");

GridView1.DataSource = myds;

GridView1.DataKeyNames = new string[] { "身份证号码" };

GridView1.DataBind();

sqlcon.Close();

}

}

前台主要代码：

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"

CellPadding="3" Font-Size="9pt" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">

<FooterStyle BackColor="White" ForeColor="#000066" />

<Columns>

<asp:TemplateField>

<ItemTemplate>

<asp:CheckBox ID="CheckBox1" runat="server" />

</ItemTemplate>

</asp:TemplateField>

<asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />

<asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>

<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>

</Columns>

<RowStyle ForeColor="#000066" />

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

</asp:GridView>

<asp:CheckBox ID="CheckBox2" runat="server" AutoPostBack="True" Font-Size="9pt" OnCheckedChanged="CheckBox2_CheckedChanged"

Text="全选" />

<asp:Button ID="Button1" runat="server" Font-Size="9pt" Text="取消" OnClick="Button1_Click" />

<asp:Button ID="Button2" runat="server" Font-Size="9pt" Text="删除" OnClick="Button2_Click" />

6.鼠标移到GridView某一行时改变该行的背景色方法一：

做法：

双击GridView的OnRowDataBound事件；

在后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

{

//首先判断是否是数据行

if (e.Row.RowType == DataControlRowType.DataRow)

{

//当鼠标停留时更改背景色

e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor=‘#00A9FF‘");

//当鼠标移开时还原背景色

e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");

}

}

前台代码：

<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

<title>实现鼠标划过改变GridView的行背景色清清月儿http://blog.csdn.net/21aspnet </title>

</head>

<body>

<form id="form1" runat="server">

<div>

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"

DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
CellPadding="3" Font-Size="12px"
OnRowDataBound="GridView1_RowDataBound">

<Columns>

<asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />

<asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />

<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址" />

<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

</Columns>

<FooterStyle BackColor="White" ForeColor="#000066" />

<RowStyle ForeColor="#000066" />

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

</asp:GridView>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"

SelectCommand="SELECT top 5 [身份证号码], [姓名], [员工性别], [家庭住址], [邮政编码] FROM
[飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>

</div>

</form>

</body>

</html>

7.鼠标移到GridView某一行时改变该行的背景色方法二：

做法：和上面的一样就是代码不同

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

{

//如果是绑定数据行

if (e.Row.RowType == DataControlRowType.DataRow)

{

//鼠标经过时，行背景色变

e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor=‘#E6F5FA‘");

//鼠标移出时，行背景色变

e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=‘#FFFFFF‘");

}

}

8.GridView实现删除时弹出确认对话框：

实现方法：

双击GridView的OnRowDataBound事件；

在后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

{

//如果是绑定数据行

if (e.Row.RowType == DataControlRowType.DataRow)

{

if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)

{

((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick",
"javascript:return confirm(‘你确认要删除：/"" + e.Row.Cells[1].Text +
"/"吗?‘)");

}

}

}

9.GridView实现自动编号：

实现方法：

双击GridView的OnRowDataBound事件；

在后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

{

if (e.Row.RowIndex != -1)

{

int id = e.Row.RowIndex + 1;

e.Row.Cells[0].Text = id.ToString();

}

}

注意这时最好把前台的第一列的表头该为“编号”，因为以前的第一列被“吃掉”了。

<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowDeleting="GridView1_RowDeleting"
OnRowEditing="GridView1_RowEditing"

OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">

<FooterStyle BackColor="White" ForeColor="#000066" />

<Columns>

<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

<asp:BoundField DataField="姓名" HeaderText="用户姓名" />

<asp:BoundField DataField="员工性别" HeaderText="性别" />

<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />

<asp:CommandField HeaderText="选择" ShowSelectButton="True" />

<asp:CommandField HeaderText="编辑" ShowEditButton="True" />

<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />

</Columns>

<RowStyle ForeColor="#000066" />

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

</asp:GridView>

10.GridView实现自定义时间货币等字符串格式：

解决方法：

在asp.net 2.0中，如果要在绑定列中显示比如日期格式等，如果用下面的方法是显示不了的

<asp :BoundField DataField="CreationDate"

DataFormatString="{0:M-dd-yyyy}"

HeaderText="CreationDate" />

主要是由于htmlencode属性默认设置为true,已防止XSS攻击，安全起见而用的，所以，可以有以下两种方法解决

1、

<asp :GridView ID="GridView1" runat="server">

<columns>

<asp :BoundField DataField="CreationDate"

DataFormatString="{0:M-dd-yyyy}"

HtmlEncode="false"

HeaderText="CreationDate" />

</columns>

</asp>

将htmlencode设置为false即可

另外的解决方法为，使用模版列

<asp :GridView ID="GridView3" runat="server" >

<columns>

<asp :TemplateField HeaderText="CreationDate" >

<edititemtemplate>

<asp :Label ID="Label1" runat="server"

Text=‘<%# Eval("CreationDate", "{0:M-dd-yyyy}") %>‘>

</asp>

</edititemtemplate>

<itemtemplate>

<asp :Label ID="Label1" runat="server"

Text=’<%# Bind("CreationDate", "{0:M-dd-yyyy}") %>‘>

</asp>

</itemtemplate>

</asp>

</columns>

</asp>

前台代码：

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"

DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
CellPadding="3" Font-Size="12px"
OnRowDataBound="GridView1_RowDataBound">

<Columns>

<asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />

<asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />

<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

<asp:BoundField DataField="出生日期" HeaderText="出生日期" SortExpression="出生日期" />

<asp:BoundField DataField="起薪" HeaderText="起薪" SortExpression="起薪" />

</Columns>

<FooterStyle BackColor="White" ForeColor="#000066" />

<RowStyle ForeColor="#000066" />

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

</asp:GridView>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"

SelectCommand="SELECT top 5 [出生日期], [起薪], [身份证号码], [姓名], [家庭住址], [邮政编码]
FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>

附录-常用格式化公式：

{0:C} 货币；

{0:D4}由0填充的4个字符宽的字段中显示整数；

{0:000.0}四舍五入小数点保留第几位有效数字；

{0:N2}小数点保留2位有效数字；{0:N2}% 小数点保留2位有效数字加百分号；

{0:D}长日期；{0:d}短日期；{0:yy-MM-dd} 例如07-3-25；；{0:yyyy-MM-dd} 例如2007-3-25

11.GridView实现用“...”代替超长字符串：

解决方法：数据绑定后过滤每一行即可

for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

{

DataRowView mydrv;

string gIntro;

if (GridView1.PageIndex == 0)

{

mydrv = myds.Tables["飞狐工作室"].DefaultView[i];//表名

gIntro = Convert.ToString(mydrv["家庭住址"]);//所要处理的字段

GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

}

else

{

mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];

gIntro = Convert.ToString(mydrv["家庭住址"]);

GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

}

}

调用的方法：

public string SubStr(string sString, int nLeng)

{

if (sString.Length <= nLeng)

{

return sString;

}

string sNewStr = sString.Substring(0, nLeng);

sNewStr = sNewStr + "...";

return sNewStr;

}

12.GridView一般换行与强制换行：

首先设置<asp:BoundField DataField="家庭住址" HeaderText="家庭住址"
ItemStyle-Width="100"
/>gridview里有一列绑定的数据很长，显示的时候在一行里面显示，页面拉得很宽。原因是连续英文段为一个整体导致的，在
RowDataBound中添加上了一句e.Row.Cells[2].Style.Add("word-break",
"break-all")就可以。如果要给所有的列增加此属性：

protected void Page_Load(object sender, EventArgs e)

{

//正常换行

GridView1.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");

//下面这行是自动换行

GridView1.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");

if (!IsPostBack)

{

bind();//调用数据绑定即可

}

}

总之：善用CSS的word-break:break-all;word-wrap:break-word属性即可，这个属性是通用的对于顽固的南换行问题都可以解决，不局限于GridView。

13.GridView显示隐藏某一列：

解决方案：

public void bind()

{

string sqlstr = "select top 5 * from 飞狐工作室";

sqlcon = new SqlConnection(strCon);

SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

DataSet myds = new DataSet();

sqlcon.Open();

myda.Fill(myds, "飞狐工作室");

GridView1.DataSource = myds;

GridView1.DataKeyNames = new string[] { "身份证号码" };

GridView1.DataBind();

sqlcon.Close();

GridView1.Columns[3].Visible = false;//一开始隐藏

CheckBox1.Checked = false;//如果不这样后面的代码会把他True

}

双击CheckBox1，在CheckedChanged方法里写上代码，最后代码如下：

protected void CheckBox1_CheckedChanged(object sender, EventArgs e)

{

GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;

Response.Write("GridView1的第4列现在的显示隐藏状态是："+GridView1.Columns[3].Visible.ToString());

}

注意：CheckBox1的AutoPostBack要True！

14.GridView弹出新页面：

<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowDeleting="GridView1_RowDeleting"
OnRowEditing="GridView1_RowEditing"

OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" >

<FooterStyle BackColor="White" ForeColor="#000066" />

<Columns>

<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />

<asp:HyperLinkField HeaderText="姓名" Text="姓名"
DataNavigateUrlFields="姓名"
DataNavigateUrlFormatString="Default6.aspx?GoodsID={0}"
Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" >

</asp:HyperLinkField>

<asp:CommandField HeaderText="选择" ShowSelectButton="True" />

<asp:CommandField HeaderText="编辑" ShowEditButton="True" />

<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />

</Columns>

<RowStyle ForeColor="#000066" />

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

</asp:GridView>

DataNavigateUrlFields是链接的字段名，DataNavigateUrlFormatString是路径。

15.GridView固定表头(不用javascript只用CSS!，很好用)：

代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

<title>GridView固定表头 清清月儿http://blog.csdn.net/21aspnet </title>

<style>

.Freezing

{

position:relative ;

table-layout:fixed;

top:expression(this.offsetParent.scrollTop);

z-index: 10;

}

.Freezing th{text-overflow:ellipsis;overflow:hidden;white-space: nowrap;padding:2px;}

</style>

</head>

<body style="font-size=12px">

<form id="form1" runat="server">

<div style="overflow-y: scroll; height: 200px;width:300px" id="dvBody">

<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowDeleting="GridView1_RowDeleting"
OnRowEditing="GridView1_RowEditing"

OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" OnRowCreated="GridView1_RowCreated" >

<FooterStyle BackColor="White" ForeColor="#000066" />

<Columns>

<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />

<asp:BoundField DataField="姓名" HeaderText="姓名" />

</Columns>

<RowStyle ForeColor="#000066" />

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>

<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>

</asp:GridView>

</div>

</form>

</body>

</html>

用法：CSS设如上的样式，HeaderStyle加CssClass="Freezing，套住GridView的Div设置高度宽度 <div
style="overflow-y: scroll; height: 200px;width:200px" >

16.GridView合并表头多重表头无错完美版（以合并3列3行举例）

后台代码：

protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)

{

switch (e.Row.RowType)

{

case DataControlRowType.Header:

//第一行表头

TableCellCollection tcHeader = e.Row.Cells;

tcHeader.Clear();

tcHeader.Add(new TableHeaderCell());

tcHeader[0].Attributes.Add("rowspan", "3"); //跨Row

tcHeader[0].Attributes.Add("bgcolor", "white");

tcHeader[0].Text = "";

tcHeader.Add(new TableHeaderCell());

//tcHeader[1].Attributes.Add("bgcolor", "Red");

tcHeader[1].Attributes.Add("colspan", "6"); //跨Column

tcHeader[1].Text = "全部信息</th></tr><tr>";

//第二行表头

tcHeader.Add(new TableHeaderCell());

tcHeader[2].Attributes.Add("bgcolor", "DarkSeaGreen");

tcHeader[2].Text = "身份证号码";

tcHeader.Add(new TableHeaderCell());

tcHeader[3].Attributes.Add("bgcolor", "LightSteelBlue");

tcHeader[3].Attributes.Add("colspan", "2");

tcHeader[3].Text = "基本信息";

tcHeader.Add(new TableHeaderCell());

tcHeader[4].Attributes.Add("bgcolor", "DarkSeaGreen");

tcHeader[4].Text = "福利";

tcHeader.Add(new TableHeaderCell());

tcHeader[5].Attributes.Add("bgcolor", "LightSteelBlue");

tcHeader[5].Attributes.Add("colspan", "2");

tcHeader[5].Text = "联系方式</th></tr><tr>";

//第三行表头

tcHeader.Add(new TableHeaderCell());

tcHeader[6].Attributes.Add("bgcolor", "Khaki");

tcHeader[6].Text = "身份证号码";

tcHeader.Add(new TableHeaderCell());

tcHeader[7].Attributes.Add("bgcolor", "Khaki");

tcHeader[7].Text = "姓名";

tcHeader.Add(new TableHeaderCell());

tcHeader[8].Attributes.Add("bgcolor", "Khaki");

tcHeader[8].Text = "出生日期";

tcHeader.Add(new TableHeaderCell());

tcHeader[9].Attributes.Add("bgcolor", "Khaki");

tcHeader[9].Text = "薪水";

tcHeader.Add(new TableHeaderCell());

tcHeader[10].Attributes.Add("bgcolor", "Khaki");

tcHeader[10].Text = "家庭住址";

tcHeader.Add(new TableHeaderCell());

tcHeader[11].Attributes.Add("bgcolor", "Khaki");

tcHeader[11].Text = "邮政编码";

break;

}

}

}

前台：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

<title>GridView合并多重表头表头 清清月儿http://blog.csdn.net/21aspnet </title>

</head>

<body >

<form id="form1" runat="server">

<div >

<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowEditing="GridView1_RowEditing"

OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" OnRowCreated="GridView1_RowCreated" >

<FooterStyle BackColor="White" ForeColor="#000066" />

<Columns>

<asp:CommandField HeaderText="编辑" ShowEditButton="True" />

<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

<asp:BoundField DataField="姓名" HeaderText="姓名" />

<asp:BoundField DataField="出生日期" HeaderText="邮政编码" />

<asp:BoundField DataField="起薪" HeaderText="起薪" />

<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />

<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

</Columns>

<RowStyle ForeColor="#000066" />

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>

<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

</asp:GridView>

</div>

</form>

</body>

</html>

17.GridView突出显示某一单元格（例如金额低于多少，分数不及格等）

解决方案：主要是绑定后过滤

GridView1.DataBind();

for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

{

DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];

string score = Convert.ToString(mydrv["起薪"]);

if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等

{

GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;

}

}

sqlcon.Close();

前台代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head id="Head1" runat="server">

<title>GridView突出显示某一单元格 清清月儿http://blog.csdn.net/21aspnet </title>

</head>

<body >

<form id="form1" runat="server">

<div >

<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowEditing="GridView1_RowEditing"

OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" >

<FooterStyle BackColor="White" ForeColor="#000066" />

<Columns>

<asp:CommandField HeaderText="编辑" ShowEditButton="True" />

<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

<asp:BoundField DataField="姓名" HeaderText="姓名" />

<asp:BoundField DataField="出生日期" HeaderText="邮政编码" />

<asp:BoundField DataField="起薪" HeaderText="起薪" DataFormatString="{0:C}" HtmlEncode="false"/>

<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />

<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

</Columns>

<RowStyle ForeColor="#000066" />

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>

<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

</asp:GridView>

</div>

</form>

</body>

</html>

18.GridView加入自动求和求平均值小计

解决方案：

private double sum = 0;//取指定列的数据和，你要根据具体情况对待可能你要处理的是int

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

{

if (e.Row.RowIndex >= 0)

{

sum += Convert.ToDouble(e.Row.Cells[6].Text);

}

else if (e.Row.RowType == DataControlRowType.Footer)

{

e.Row.Cells[5].Text = "总薪水为：";

e.Row.Cells[6].Text = sum.ToString();

e.Row.Cells[3].Text = "平均薪水为：";

e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();

}

}

前台：唯一的花头就是设置ShowFooter="True" ，否则默认表头为隐藏的！

<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" CellPadding="3"
OnRowEditing="GridView1_RowEditing"

OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
Font-Size="12px" OnRowDataBound="GridView1_RowDataBound"
ShowFooter="True" >

<FooterStyle BackColor="White" ForeColor="#000066" />

<Columns>

<asp:CommandField HeaderText="编辑" ShowEditButton="True" />

<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

<asp:BoundField DataField="姓名" HeaderText="姓名" />

<asp:BoundField DataField="出生日期" HeaderText="邮政编码" />

<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />

<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

<asp:BoundField DataField="起薪" HeaderText="起薪" />

</Columns>

<RowStyle ForeColor="#000066" />

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>

<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

</asp:GridView>

19.GridView数据导入Excel/Excel数据读入GridView

解决方案：

页面增加一个按钮，单击事件添加如下方法：

protected void Button1_Click(object sender, EventArgs e)

{

Export("application/ms-excel", "学生成绩报表.xls");

}

private void Export(string FileType, string FileName)

{

Response.Charset = "GB2312";

Response.ContentEncoding = System.Text.Encoding.UTF7;

Response.AppendHeader("Content-Disposition", "attachment;filename=" +
HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());

Response.ContentType = FileType;

this.EnableViewState = false;

StringWriter tw = new StringWriter();

HtmlTextWriter hw = new HtmlTextWriter(tw);

GridView1.RenderControl(hw);

Response.Write(tw.ToString());

Response.End();

}

//如果没有下面方法会报错类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内

public override void VerifyRenderingInServerForm(Control control)

{

}

还有由于是文件操作所以要引入名称空间IO和Text

后台代码：

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

using System.Drawing;

using System.IO;

using System.Text;

public partial class Default7 : System.Web.UI.Page

{

SqlConnection sqlcon;

SqlCommand sqlcom;

string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

bind();

}

}

public void bind()

{

string sqlstr = "select top 5 * from 飞狐工作室";

sqlcon = new SqlConnection(strCon);

SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

DataSet myds = new DataSet();

sqlcon.Open();

myda.Fill(myds, "飞狐工作室");

GridView1.DataSource = myds;

GridView1.DataKeyNames = new string[] { "身份证号码" };

GridView1.DataBind();

sqlcon.Close();

}

protected void Button1_Click(object sender, EventArgs e)

{

Export("application/ms-excel", "学生成绩报表.xls");

}

private void Export(string FileType, string FileName)

{

Response.Charset = "GB2312";

Response.ContentEncoding = System.Text.Encoding.UTF7;

Response.AppendHeader("Content-Disposition", "attachment;filename=" +
HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());

Response.ContentType = FileType;

this.EnableViewState = false;

StringWriter tw = new StringWriter();

HtmlTextWriter hw = new HtmlTextWriter(tw);

GridView1.RenderControl(hw);

Response.Write(tw.ToString());

Response.End();

}

public override void VerifyRenderingInServerForm(Control control)

{

}

}

前台：

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3"

BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" >

<FooterStyle BackColor="White" ForeColor="#000066" />

<Columns>

<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

<asp:BoundField DataField="姓名" HeaderText="姓名" />

<asp:BoundField DataField="出生日期" HeaderText="邮政编码" />

<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />

<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

<asp:BoundField DataField="起薪" HeaderText="起薪" />

</Columns>

<RowStyle ForeColor="#000066" />

<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>

<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

</asp:GridView>

<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="导出" />

读取Excel数据的代码：这个很简单的

private DataSet CreateDataSource()

{

string strCon;

strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";

OleDbConnection olecon = new OleDbConnection(strCon);

OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strCon);

DataSet myds = new DataSet();

myda.Fill(myds);

return myds;

}

protected void Button1_Click(object sender, EventArgs e)

{

GridView1.DataSource = CreateDataSource();

GridView1.DataBind();

}

时间： 2024-10-12 21:44:57

GridView的详细用法的相关文章

Display:Block 详细用法

根据CSS规范的规定,每一个网页元素都有一个display属性,用于确定该元素的类型,每一个元素都有默认的display属性值,比如div元素,它的默认display属性值为"block",成为"块级"元素(block-level):而span元素的默认display属性值为"inline",称为"行内"元素. 块级元素: 动占据一定矩形空间,可以通过设置高度.宽度.内外边距等属性,来调整的这个矩形的样子: 行内元素: 自己的

DOM Style样式对象的详细用法

DOM Style样式对象的详细用法 HTML Style样式比较复杂,相应访问.修改方法也有所差异.参考相关资料,整理如下. 典型Html文件如下,有三种定义方式. <head>     <style type="text/css">                /* 内部样式 */       h3 {color:green;}     </style>             <!-- 外部样式 style.css -->    

文件/目录权限设置命令chmod的详细用法

chmod是文件/目录权限设置的命令,在Linux中经常遇到,本博文以下总结chmod的详细用法. Linux/Unix的档案调用权限分为三级,即档案拥有者user.群组group.其他other.u表示该档案的拥有者,g表示与该档案的拥有者属于同一个群体(group)者,o表示其他以外的人,a表示这三者皆是. + 表示增加权限.- 表示取消权限.= 表示唯一设定权限. r表示可读取,w表示可写入,x表示可执行. 举例说明: (1).将档案file1.txt 设为所有人皆可读取: chmod u

mysql中游标在存储过程中的详细用法

昨天写的一个东东,分享下给大家. drop PROCEDURE  if exists sp_cleanUserData; CREATE  PROCEDURE `sp_cleanUserData`() BEGIN /*定义游标*/ declare v_dt bigint(20) default 0 ; declare v_num INT DEFAULT 0; /*游标循环到末尾时给定义的常量赋值*/ declare cur_userId   CURSOR FOR select  userId fr

Linux中find、grep命令详细用法

在linux下面工作,有些命令能够大大提高效率.本文就向大家介绍find.grep命令,他哥俩可以算是必会的linux命令,我几乎每天都要用到他们.本文结构如下: find命令 find命令的一般形式 find命令的常用选项及实例 find与xargs grep命令 grep命令的一般形式 grep正则表达式元字符集(基本集) grep命令的常用选项及实例 1.find命令 find命令是一个无处不在命令,是linux中最有用的命令之一.find命令用于:在一个目录(及子目录)中搜索文件,你可以

SplitContainer 控件详细用法（转）

1.可以将 Windows 窗体 SplitContainer 控件看作是一个复合体,它是由一个可移动的拆分条分隔的两个面板.当鼠标指针悬停在该拆分条上时,指针将相应地改变形状以显示该拆分条是可移动的.使用 SplitContainer 控件,可以创建复合的用户界面(通常,在一个面板中的选择决定了在另一个面板中显示哪些对象).这种排列对于显示和浏览信息非常有用.拥有两个面板使您可以聚合不同区域中的信息,并且用户可以轻松地使用拆分条(也称为"拆分器")调整面板的大小.另外,还可以嵌套多个

chmod和chown命令详细用法

Linux下数字表示文件的操作权限(777,755,..) Linux下,查看某路径下用(ls -l)查看所有文件的详细属性列表时,会看到文件的操作权限,类似"drwxr-xr-x"的字符串. 这串字符可以分成4段理解,结构为"d + 文件所有者操作权限 + 文件所有者所在组操作权限 + 其余人的操作权限": 1,第一段:例子中字母"d",表示文件所在目录 2,第二段:例子中字符串"rwx",表示文件所有者对此文件的操作权限

Java包(Package)的详细用法（转）

Java包(Package)的详细用法 http://wenwen.soso.com/z/q229375145.htm 当一个大型程序交由数个不同的程序人员开发时,用到相同的类名是很有可能的,那么如果发生了这样的事件我们该怎么办那?,在我们java程序开发中为了避免上述事件,提供了一个包的概念(package),那么既然有了这样一种方法能避免上述事件,那么我们怎样使用package那?,使用方法很简单我们只需要在我们写的程序第一行使用package关键字来声明一个包就行了,例如我们来声明一个名为

AWK详细用法

awk非常的优秀,运行效率高,而且代码简单,对格式化的文本处理能力超强.基本上grep和sed能干的活awk全部都能干,而且干得更好. 先来一个很爽的例子:文件a,统计文件a的第一列中是浮点数的行的浮点数的平均值.用awk来实现只需要一句话就可以搞定(当然,这个东东用python也可以很轻松的实现,只是无论如何都得新建一个文件:别妄想用bash shell来做,那可是浮点数!!!)$cat a1.021 331#.ll   442.53 6ss    7awk 'BEGIN{total = 0;