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ItemTemplate : Change Control Binding At Runtime

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This is a migrated thread and some comments may be shown as answers.

Marcus asked on 25 Mar 2010, 07:58 PM

Hi All,

I have an ItemTemplate with a RadNumericTextBox bound as follows:-

    
            <ItemTemplate> 
        
                <telerik:RadNumericTextBox ID="RadNumericTextBox_cost" Runat="server"  
        
                        Culture="English (United Kingdom)"  
        
                        Type="Currency"  
        
                        Width="60px" Text='<%# Eval("cost") %>' MinValue="0" MaxValue="5500"  
        
                        EnabledStyle-HorizontalAlign="Right" FocusedStyle-HorizontalAlign="Right"> 
        
                    <FocusedStyle HorizontalAlign="Right" /> 
        
                    <EnabledStyle HorizontalAlign="Right" /> 
        
                </telerik:RadNumericTextBox> 
        
            </ItemTemplate>

In some instances I wish to change the binding of the control at runtime ie costAdjust rather than cost

    
            <ItemTemplate> 
        
                <telerik:RadNumericTextBox ID="RadNumericTextBox_cost" Runat="server"  
        
                        Culture="English (United Kingdom)"  
        
                        Type="Currency"  
        
                        Width="60px" Text='<%# Eval("costAdjust") %>' MinValue="0" MaxValue="5500"  
        
                        EnabledStyle-HorizontalAlign="Right" FocusedStyle-HorizontalAlign="Right"> 
        
                    <FocusedStyle HorizontalAlign="Right" /> 
        
                    <EnabledStyle HorizontalAlign="Right" /> 
        
                </telerik:RadNumericTextBox> 
        
            </ItemTemplate>

I have tried the following:-

    
            Dim costAdjust As RadNumericTextBox = (DirectCast(dg_detailRecovery.MasterTableView.Items(0).FindControl("RadNumericTextBox_cost"), RadNumericTextBox)) 
        
            costAdjust.Text = "<%# DataBinder.Eval(Container.DataItem, 'costAdjust') %>"

But the .Items(0) returns an error.

Does anyone have any ideas how this can be achieved???

Thanx

Marcus

ItemTemplate

2 Answers, 1 is accepted

answered on 26 Mar 2010, 05:49 AM

Hi Marcus,

You can access the RadNumericTextBox placed in ItemTemplate in ItemDataBound event and then set the Text property to required field value (after checking for condition, if any).

VB:

    
             Protected Sub RadGrid3_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs)     
        
                If TypeOf e.Item Is GridDataItem Then 
        
                    Dim item As GridDataItem = DirectCast(e.Item, GridDataItem) 
        
                    Dim txtNumeric As RadNumericTextBox = DirectCast((item.FindControl("RadNumericTextBox_cost")), RadNumericTextBox) 
        
                    Dim row As DataRowView = DirectCast(item.DataItem, DataRowView) 
        
                    txtNumeric.Text = row("costAdjust").ToString() 
        
                End If 
        
            End Sub

-Shinu