NeedDataSource Event
Fired when RadGrid needs a data source for rebinding.
Event Parameters
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(object)
sender- The control that fires the event
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(GridNeedDataSourceEventArgs)
e-
Event arguments
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(boolean)
e.IsFromDetailTableReturns true if the event is fired for the DetailTable.
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(GridRebindReason)
e.RebindReasonGets a value specifying why the event was fired.
-
(int)
e.RowsCountGets a value specifying the number of rows that should be extracted from the data source when virtualization and custom paging are enabled.
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(int)
e.StartRowIndexGets a value specifying the index of the first row in the data source that should be extracted when virtualization and custom paging are enabled.
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-
Attaching the event
In the Markup
<telerik:RadGrid ID="RadGrid1" runat="server" OnNeedDataSource="RadGrid1_NeedDataSource">
</telerik:RadGrid>
In the Code behind
protected void Page_Init(object sender, EventArgs e)
{
RadGrid1.NeedDataSource += RadGrid1_NeedDataSource;
}
Protected Sub Page_Init(sender As Object, e As EventArgs) Handles Me.Init
AddHandler RadGrid1.NeedDataSource, AddressOf RadGrid1_NeedDataSource
End Sub
The event handler
protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
{
bool isFromDetailTable = e.IsFromDetailTable;
GridRebindReason rebindReason= e.RebindReason;
int rowsCount = e.RowsCount;
int startRowIndex = e.StartRowIndex;
}
Protected Sub RadGrid1_NeedDataSource(ByVal sender As Object, ByVal e As GridNeedDataSourceEventArgs)
Dim isFromDetailTable As Boolean = e.IsFromDetailTable
Dim rebindReason As GridRebindReason = e.RebindReason
Dim rowsCount As Integer = e.RowsCount
Dim startRowIndex As Integer = e.StartRowIndex
End Sub