目录:
一、客户端常用
1.常用API
2.聚焦行变更事件
3.客户端选择多行
4.客户端选择行
5. 获取选择的行数目
6.单击行时,选中行
7.通过checkbox 选择行
8.选择所有行
9.启动编辑框,Container.VisibleIndex 获取行索引
10.启动服务器端函数:
二、客户端常用事件
三、服务器端常用属性
四、服务器端常用方法
五、服务器端常用事件
六、列的设置
1.模板列使用超链接
2.模板列使用Button用法
3. 使用命令列
七、其他
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内容:
一客户端常用
1.常用API:
PerformCallback(this.value);
CollapseAll()
ExpandAll()
SelectRows()
UnselectRows()
UnselectAllRowsOnPage()
SelectAllRowsOnPage(this.checked)
2.聚焦行变更事件。向服务器查询聚焦行的 "EmployeeID" 和 "Notes" 信息,并该信息将返回到 OnGetRowValues() 函数
function OnGridFocusedRowChanged() {
grid.GetRowValues(grid.GetFocusedRowIndex(), ‘EmployeeID;Notes‘, OnGetRowValues);
}
// 处理服务器端传回的数据(values是个数组,包含 "EmployeeID" 和 "Notes" 值)
function OnGetRowValues(values) {
DetailImage.SetImageUrl("FocusedRow.aspx?Photo=" + values[0]);
DetailNotes.SetText(values[1]);
}
<ClientSideEvents FocusedRowChanged="function(s, e) { OnGridFocusedRowChanged(); }"/>
3.客户端选择多行
function grid_SelectionChanged(s, e) {
s.GetSelectedFieldValues("ContactName", GetSelectedFieldValuesCallback);
}
function GetSelectedFieldValuesCallback(values) {
selList.BeginUpdate();
try {
selList.ClearItems();
for(var i = 0; i < values.length; i ++) {
selList.AddItem(values[i]);
}
} finally {
selList.EndUpdate();
}
document.getElementById("selCount").innerHTML = grid.GetSelectedRowCount();
}
<ClientSideEvents SelectionChanged="grid_SelectionChanged" />
4.客户端选择行
function OnGridFocusedRowChanged()
{
// Query the server for the "EmployeeID" and "Notes" fields from the focused row
// The values will be returned to the OnGetRowValues() function
grid.GetRowValues(grid.GetFocusedRowIndex(), ‘EmployeeID;Notes‘, OnGetRowValues);
}
//Value array contains "EmployeeID" and "Notes" field values returned from the server
function OnGetRowValues(values)
{
var notes = document.getElementById("detailnotes");
notes.value = values[1];
var image = document.getElementById("detailimage");
image.src = "FocusedRow.aspx?Photo=" + values[0];
}
5. 获取选择的行数目 grid.GetSelectedRowCount()
6.单击行时,选中行
function OnRowClick(e) {
//Clear the text selection
_aspxClearSelection();
//Unselect all rows
grid._selectAllRowsOnPage(false);
//Select the row
grid.SelectRow(e.visibleIndex, true);
}
<ClientSideEvents RowClick="function(s, e) { OnRowClick(e); }" />
7.通过checkbox 选择行 设置GridView 的属性ShowSelectCheckBox =true
function grid_SelectionChanged(s,e) {
s.GetSelectedFieldValues("ContactName",GetSelectedFieldValuesCallback);
}
GetSelectedFieldValuesCallback 回调函数
function GetSelectedFieldValuesCallback(values) {
selList.BeginUpdate();
try {
selList.ClearItems();
for(var i=0;i<values.length;i++) {
selList.AddItem(values[i]);
}
} finally {
selList.EndUpdate();
}
document.getElementById("selCount").innerHTML=grid.GetSelectedRowCount();
}
selList 是ASPxListBox控件
8.选择所有行: grid.SelectAllRowsOnPage(this.checked);
9.grid.StartEditRow(VisibleIndex) 启动编辑框,Container.VisibleIndex 获取行索引
<dxwgv:GridViewDataColumn FieldName="CustomerID" VisibleIndex="0">
<DataItemTemplate>
<%#GetEditRowHtml(Container.VisibleIndex) %> GetEditRowHtml 为后台一个方法返回一个字符串
</DataItemTemplate>
</dxwgv:GridViewDataColumn>
protected string GetEditRowHtml(int visibleIndex) {
string rowValue = Convert.ToString(grid.GetRowValues(visibleIndex, "Country"));
string cbValue = Convert.ToString(cbCountries.Value);
if(rowValue == cbValue)
return string.Format("<a href=‘JavaScript:grid.StartEditRow({0})‘> Edit </a>", visibleIndex);
return "Read Only";
}
10.启动服务器端函数: _CustomerCallBack()
PerformCallback(parameter)
二、客户端常用事件
1.
<ClientSideEvents FocusedRowChanged="function(s, e) { OnGridFocusedRowChanged(); }"/>
2.
<ClientSideEvents SelectionChanged="grid_SelectionChanged" />
3.
<ClientSideEvents RowClick="function(s, e) { OnRowClick(e); }" />
三、服务器端常用属性
四、服务器端常用方法
1.获取指定行的数据
object masterKeyValue = masterGrid.GetRowValues(Convert.ToInt32(e.Parameters), "CategoryID");
2.查找包含在gridview中的控件
grid.FindRowTemplateControl(e.VisibleIndex,"id");
grid.FindRowCellTemplateControl(e.VisibleIndex, null, "id");
Label label = grid.FindRowCellTemplateControl(e.VisibleIndex, null, "changePercent") as Label;
六、服务器端常用事件
1.行创建时执行事件
protected void grid_HtmlRowCreated(object sender, ASPxGridViewTableRowEventArgs e)
{
e.Row.Cells[0].Enabled = false;
e.GetValue("Change") decimal change = (decimal)e.GetValue("Change");
}
2.动态设置每个单元格的显示内容:
protected void grid_CustomColumnDisplayText(object sender, ASPxGridViewColumnDisplayTextEventArgs e)
{
e.Column.FieldName
e.DisplayText
}
3.编辑事件
protected void grid_RowUpdating(object sender, DevExpress.Web.Data.ASPxDataUpdatingEventArgs e)
4. protected void grid_BeforeColumnSortingGrouping(object sender, ASPxGridViewBeforeColumnGroupingSortingEventArgs e)
{
BindGrid();
}
六、列的设置
1.模板列使用超链接
a.<dxwgv:GridViewDataColumn Caption=" " Width="64px">
<DataItemTemplate>
<a href="javascript:showEditForm(‘<%# Container.KeyValue.ToString() %>‘);">编辑</a>
<a href="javascript:deleteRow(‘<%# Container.KeyValue.ToString() %>‘);">删除</a>
</DataItemTemplate>
<Settings AllowDragDrop="False" />
</dxwgv:GridViewDataColumn>
b.<dxwgv:GridViewDataColumn Caption="单号" FieldName="note_id">
<DataItemTemplate>
<a href="VisitorNoteDetail.aspx?note_id=<%#Eval("note_id") %>"><%#Eval("note_id") %></a>
</DataItemTemplate>
</dxwgv:GridViewDataColumn>
c.<dxwgv:GridViewDataHyperLinkColumn Caption="单据ID" FieldName="note_id" Width="80px"
VisibleIndex="2">
<PropertiesHyperLinkEdit TextFormatString="note_id" NavigateUrlFormatString="VisitorNoteDetail.aspx?id={0}">
</PropertiesHyperLinkEdit>
</dxwgv:GridViewDataHyperLinkColumn>
2.模板列使用Button用法
a. 前台代码:
<dxwgv:GridViewDataColumn Caption="审批" Width="110" VisibleIndex="1">
<DataItemTemplate>
<div style="float: left; padding-right:3px;">
<dxe:ASPxButton ID="btAllow" runat="server" Text="通过" CommandName="Allow" CommandArgument=‘<
%#Eval("note_id")%>‘>
<ClientSideEvents Click="function(s,e) {if(!confirm(‘确定审批该单据吗?‘))
{e.processOnServer=false;}}" />
</dxe:ASPxButton>
</div>
<dxe:ASPxButton ID="btRefuse" runat="server" Text="拒绝" CommandName="Refuse" CommandArgument=‘<%#Eval
("note_id")%>‘ >
<ClientSideEvents Click="function(s,e) {if(!confirm(‘确定审批该单据吗?‘))
{e.processOnServer=false;}}" />
</dxe:ASPxButton>
</DataItemTemplate>
</dxwgv:GridViewDataColumn>
b.后台代码:(事件:grid_RowCommand)
protected void grid_RowCommand(object sender, ASPxGridViewRowCommandEventArgs e)
{
ASPxButton button=e.CommandSource as ASPxButton;
int noteID = Convert.ToInt32(button.CommandArgument.ToString());
if (button.CommandName == "Allow")
{
ApproveNote(noteID, 1, 1);
}
else
{
ApproveNote(noteID, 2, 0);
}
BindGrid();
}
3. 使用命令列
a.<%--<dxwgv:GridViewCommandColumn Caption="审批" ButtonType="Button" Width="80px" VisibleIndex="1">
<CustomButtons>
<dxwgv:GridViewCommandColumnCustomButton ID="Allow" Text="通过">
</dxwgv:GridViewCommandColumnCustomButton>
<dxwgv:GridViewCommandColumnCustomButton ID="Refuse" Text="拒绝">
</dxwgv:GridViewCommandColumnCustomButton>
</CustomButtons>
</dxwgv:GridViewCommandColumn>--%>
后台事件是:_CustomerCallBack
b. <dxwgv:GridViewCommandColumn ShowSelectCheckbox="true" Width="30px" VisibleIndex="1" >
<HeaderTemplate>
<input type="checkbox" onclick="grid.SelectAllRowsOnPage(this.checked);" title="选择/放弃选择本页的所有
行" />
</HeaderTemplate>
<HeaderStyle HorizontalAlign="Center" />
</dxwgv:GridViewCommandColumn>
后台获取选择行的方法: List<object> noteIds=grid.GetSelectedFieldValues("note_id");
七、其他
1.ASPxGridView 排序方法
private string GetSort()
{
string sortID = "";
if (grid.GetSortedColumns().Count > 0)
{
GridViewDataColumn c = grid.GetSortedColumns()[0];
sortID = c.FieldName + (c.SortOrder == ColumnSortOrder.Descending ? " DESC" : " ASC");
}
return sortID;
}
对应的ASPxGridView 后台事件:
protected void grid_BeforeColumnSortingGrouping(object sender, ASPxGridViewBeforeColumnGroupingSortingEventArgs e)
{
BindGrid();
}