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1、父窗体Form1中调用子窗体Form2代码：
Form2 fr = new Form2(); this.hide(); fr.ShowDialog(this);
2、子窗体的FormClosed事件代码：
private void Form2_FormClosed(object sender, FormClosedEventArgs e)
{
Login login = (Login)this.Owner;
login.Dispose();
login.Close();
}
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winform无边框拖动窗体
private Point mPoint = new Point();
private void Form1_MouseDown(object sender, MouseEventArgs e)
{
mPoint.X = e.X;
mPoint.Y = e.Y;
}
private void Form1_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
Point myPosittion = MousePosition;
myPosittion.Offset(-mPoint.X, -mPoint.Y);
Location = myPosittion;
}
}
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读取datatable 几种方法
1，for (int i = 0; i< dt.rows.count; i++)
{
string strname = dt.rows[i]["字段名"].tostring();
}
2, foreach(datarow myrow in mydataset.tables["temp"].rows)
{
var str = myrow[0].tostring();
}
3,foreach(datarow dr in dt.rows)
{
object value = dr["columnsname"];
}
4,
Datatable.select("kymd>‘2011-11-5‘ or kymd is null")
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datatable 合并
//前提：dt1和dt2表结构相同 foreach (DataRow dr in dt2.Rows) dt1.Rows.Add(dr.ItemArray); //绑定表格 dataGridView1.DataSource = dt1; ---------------------------------------------------------------------------------- 修改datatable中的列名称 MyDt.Columns["xx"].ColumnName = "aa";
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用dictionary写键值对添加到datatable中 绑定combox显示值与属性值
//初始化下拉框值
Dictionary<string, string> dic = new Dictionary<string, string>();
dic.Add("气压", "AIRP");
dic.Add("气温", "ATMP");
dic.Add("湿度", "RHU");
dic.Add("降水", "ACCP");
dic.Add("风速", "WIN");
dic.Add("日照", "SSD");
dic.Add("地温", "GST");
dic.Add("蒸发", "ACCE");
DataTable dt = new DataTable();
dt.Columns.Add("key");
dt.Columns.Add("name");
foreach (var item in dic)
{
DataRow dr = dt.NewRow();
dr["key"] = item.Key;
dr["name"] = item.Value;
dt.Rows.Add(dr);
}
this.cmbType.DataSource = dt;
this.cmbType.DisplayMember = "key";
this.cmbType.ValueMember = "name";
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Dev
1、 如何解决单击记录整行选中的问题
View->OptionsBehavior->EditorShowMode 设置为：Click
4、如何让行只能选择而不能编辑（或编辑某一单元格）
(1)、View->OptionsBehavior->EditorShowMode 设置为：Click
(2)、View->OptionsBehavior->Editable 设置为：false
5、如何禁用 GridControl 中单击列弹出右键菜单
设置 Run Design->OptionsMenu->EnableColumnMenu 设置为：false
6、如何隐藏 GridControl 的 GroupPanel 表头
设置 Run Design->OptionsView->ShowGroupPanel 设置为：false
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Winfrom 与flash交互
//获取自定义事件
axShockwaveFlash1.FlashCall += new AxShockwaveFlashObjects._IShockwaveFlashEvents_FlashCallEventHandler(axShockwaveFlash1_FlashCall);
//鼠标点击弹出信息
public void axShockwaveFlash1_FlashCall(object sender, AxShockwaveFlashObjects._IShockwaveFlashEvents_FlashCallEvent e)
{
XmlDocument document = new XmlDocument();
document.LoadXml(e.request);
XmlAttributeCollection attributes = document.FirstChild.Attributes;
string command = attributes.Item(0).InnerText;
MessageBox.Show(command);
}
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WinForm设置全局皮肤 skin
//设置skin皮肤全局 string path = Application.StartupPath + @"\skin\Warm\WarmColor3.ssk"; se = new Sunisoft.IrisSkin.SkinEngine(); se.SkinAllForm = true; se.SkinFile = path; this.StartPosition = FormStartPosition.CenterScreen;
修改界面图标
string iconPath = Application.StartupPath + @"\image\a.ico"; this.Icon = new Icon(iconPath);
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Winform窗体淡入淡出效果
(百度来的)
[System.Runtime.InteropServices.DllImport("user32.dll")]
private static extern bool AnimateWindow(IntPtr whnd, int dwtime, int dwflag);
//dwflag的取值如下
public const Int32 AW_HOR_POSITIVE = 0x00000001;
//从左到右显示
public const Int32 AW_HOR_NEGATIVE = 0x00000002;
//从右到左显示
public const Int32 AW_VER_POSITIVE = 0x00000004;
//从上到下显示
public const Int32 AW_VER_NEGATIVE = 0x00000008;
//从下到上显示
public const Int32 AW_CENTER = 0x00000010;
//若使用了AW_HIDE标志，则使窗口向内重叠，即收缩窗口；否则使窗口向外扩展，即展开窗口
public const Int32 AW_HIDE = 0x00010000;
//隐藏窗口，缺省则显示窗口
public const Int32 AW_ACTIVATE = 0x00020000;
//激活窗口。在使用了AW_HIDE标志后不能使用这个标志
public const Int32 AW_SLIDE = 0x00040000;
//使用滑动类型。缺省则为滚动动画类型。当使用AW_CENTER标志时，这个标志就被忽略
public const Int32 AW_BLEND = 0x00080000;
//透明度从高到低
private void MainFM_Load(object sender, EventArgs e)
{
//淡入效果
AnimateWindow(this.Handle, 3000, AW_BLEND | AW_ACTIVATE);
}
private void MainFM_FormClosing(object sender, FormClosingEventArgs e)
{
//淡出
AnimateWindow(this.Handle, 3000, AW_BLEND | AW_HIDE);
}
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Dev中的 GridControl
固定某一列始终显示
BandedGridView view = advBandedGridView1 as AdvBandedGridView;
GridBand bindSTCD = view.Bands.AddBand("站点信息");
bindSTCD.Fixed = FixedStyle.Left;
设置某列的Fixed 的属性为Left即可
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保留小数
string result = String.Format("{0:N2}", 0.55555);//N几就几位
注意：后面必须跟数字类型的变量不能是string等字符串
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指定DateTime显示时间
this.xxx.DateTime = New DateTime(2004,1,1);
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获得文件夹下的所有文件名称
string btopPath = Application.StartupPath + @"\SaveData\BTOP";
DirectoryInfo mydir = new DirectoryInfo(btopPath);
foreach (FileInfo item in mydir.GetFiles())
{
MessageBox.Show(item.FullName);
}
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遍历文件夹下所有文件，并读取三行，匹配xxxxxxxxxx是个数字组成的项
private static void LoadTime(int time1, int time2)
{
string btopPath = Application.StartupPath + @"\SaveData\BTOP";
DirectoryInfo mydir = new DirectoryInfo(btopPath);
string data = "";
foreach (FileInfo item in mydir.GetFiles())
{
using (StreamReader sr = new StreamReader(item.FullName))
{
for (int i = 0; i < 3; i++)
{
data += sr.ReadLine() + " ";
}
string rege = @"\d{10}";
bool b = true;
foreach (Match mm in Regex.Matches(data, rege, RegexOptions.IgnoreCase))
{
if (b == true)
{
b = false;
time1 = int.Parse(mm.Value);
time1 = int.Parse(time1.ToString().Substring(0, 4));
}
else
{
time2 = int.Parse(mm.Value);
time2 = int.Parse(time2.ToString().Substring(0, 4));
}
}
}
//MessageBox.Show(mydir.FullName);
}
}