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problem with AddHandler

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Nikita Yaroshevsky asked on 30 Jan 2011, 01:51 AM

Hi I have a Telerik RadGrid and I'm trying to hook up my own event to RadRating control placed inside the ItemTemplate of the grid.
The added handler does not fire..

<telerik:RadGrid ID="RadGrid1" EnableViewState="False" OnPageIndexChanged="RadGrid1_PageIndexChanged"

runat="server" DataSourceID="SqlDataSource1" GridLines="None" Width="850px" Height="100%"

Skin="Telerik" PageSize="20" AllowPaging="True">

<PagerStyle Mode="NumericPages" PageButtonCount="1" Position="TopAndBottom" />

<MasterTableView BorderStyle="None" AutoGenerateColumns="False" DataSourceID="SqlDataSource1"

PageSize="20">

<NoRecordsTemplate>

<div>

Nothing was found, start your search again. To Refresh, click <a href="inventory.aspx?reset=no&make=clear&model=clear&yearFromGrid=clear">

here</a></div>

</NoRecordsTemplate>

<Columns>

<telerik:GridBoundColumn DataField="ID" HeaderText="ID" SortExpression="ID" UniqueName="ID"

DataType="System.Int32" ReadOnly="True" Visible="False" AutoPostBackOnFilter="True">

</telerik:GridBoundColumn>

</Columns>

<itemTemplate>

<asp:UpdatePanel runat="server" ID="panel1">

<ContentTemplate>

<telerik:RadRating ID="RadRating1" Value="3.5" runat="server" AutoPostBack="false" Precision="Exact" />

</ContentTemplate>

</asp:UpdatePanel>

</ItemTemplate>

<EditFormSettings>

<FormTemplate>

</FormTemplate>

</EditFormSettings>

<PagerStyle Mode="NumericPages" Position="TopAndBottom" />

</MasterTableView>

<ActiveItemStyle BorderStyle="None" />

</telerik:RadGrid>

Private Sub RadGrid1_ItemCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles RadGrid1.ItemCreated

If Not IsPostBack Then

For Each gridDataItem As GridDataItem In RadGrid1.Items

Dim radRate As RadRating = DirectCast(gridDataItem.FindControl("RadRating1"), RadRating)

AddHandler radRate.Rate, AddressOf CControls_UnitGrid.Rate

radRate.Value = 1

radRate.AutoPostBack = True

Dim panel1 As UpdatePanel = DirectCast(gridDataItem.FindControl("panel1"), UpdatePanel)

AddHandler panel1.Load, AddressOf CControls_UnitGrid.Rate

Next

End If

End Sub

Shared Sub Rate(ByVal sender As Object, ByVal e As EventArgs)

Dim radRate As RadRating = DirectCast(sender, RadRating)

radRate.Value = 2

End Sub

Here is my codeBehind, what am I doing wrong?

2 Answers, 1 is accepted

answered on 02 Feb 2011, 03:22 PM

Hi Nikita,

I checked your code, and I would first suggest that you remove the ASP:UpdatePanel from the grid. You can replace it with RadAjaxPanel. Then try modifying the ItemCreated event handler as below:

Private Sub RadGrid1_ItemCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles RadGrid1.ItemCreated

Dim gridDataItem as GridDataItem = CType(e.Item, GridDataItem)

Dim radRate As RadRating = DirectCast(gridDataItem.FindControl("RadRating1"), RadRating)

AddHandler radRate.Rate, AddressOf CControls_UnitGrid.Rate

radRate.Value = 1

radRate.AutoPostBack = True

End Sub

Let me know if it works thus.

Greetings,
Iana
the Telerik team

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