FindControl doesn't work

[Joey]

The FindControl() method doesn't work for RadToolbars.

This is exploding in the code behind:
RadNumericTextBox resultCount = (RadNumericTextBox)DeploymentHistoryToolbar.FindControl("ResultTemplate").FindControl("txtResultCount");

Here is the front end code:

<

telerik:RadToolbar ID="DeploymentHistoryToolbar" runat="server" AutoPostBack="true"

ShortcutKey="Control" RadControlsDir="~/RadControls" DisplayEnds="true">

<Items>

<telerik:RadToolbarButton ID="btnRefresh" ToolTip="Refresh" DisplayType="ImageOnly"

ButtonImage="../../../../../images/Refresh.gif" Text="Refresh" CommandName="Refresh"

AccessKey="r" />

<telerik:RadToolBarButton ID="ResultTemplate" runat="server" ToolTip="Enter -1 to show all rows.">

<ItemTemplate>&nbsp;

<b class="toolBarText">Rows to show:</b>&nbsp;

<telerik:RadNumericTextBox ID="txtResultCount" runat="server" InvalidStyle-BackColor="red" NumberFormat-DecimalDigits="0" Value="-1" Width="60px">

</telerik:RadNumericTextBox>&nbsp;&nbsp;

</ItemTemplate>

</telerik:RadToolBarButton>

</Items>

</

telerik:RadToolbar>

[Shinu]

Hi Joey,

Try accessing the RadNumericTextBox as shown below.

ASPX:

   <telerik:RadToolBar ID="RadToolBar1" runat="server" OnButtonClick="RadToolBar1_ButtonClick">
            <Items>
              <telerik:RadToolBarButton >
               <ItemTemplate>
                   <telerik:RadNumericTextBox ID="RadNumericTextBox1" runat="server">
                   </telerik:RadNumericTextBox>
               </ItemTemplate>
              </telerik:RadToolBarButton>
            </Items>
            </telerik:RadToolBar>

CS:

protected void RadToolBar1_ButtonClick(object sender, RadToolBarEventArgs e)
    {
        RadNumericTextBox rdtxtbx = (RadNumericTextBox)RadToolBar1.Controls[0].FindControl("RadNumericTextBox1");
    }

Hope this helps..
Shinu.

[Peter]

Hello Joey,

The FindControl method should work as expected. However, you first need to acces the button which holds the NumericTextBox and then use the FindControl method. Also, I noticed that you have used properties from the classic RadToolbar which have been changed or removed in the new ASP.NET AJAX RadToolbar. I suggest you refer to the topic on Migrating From RadToolBar ASP.NET to ASP.NET AJAX . Here is a modification of your code which will work as expected:

<telerik:RadToolBar ID="DeploymentHistoryToolbar" runat="server" OnButtonClick="DeploymentHistoryToolbar_ButtonClick" >
    <Items>
        <telerik:RadToolBarButton  ToolTip="Refresh"
            Text="Refresh" CommandName="Refresh"
            AccessKey="r" />
        <telerik:RadToolBarButton Value="TemplateTextBox"  runat="server" ToolTip="Enter -1 to show all rows.">
            <ItemTemplate>
                <b class="toolBarText">Rows to show:</b>
                <telerik:RadNumericTextBox ID="txtResultCount" runat="server" InvalidStyle-BackColor="red"
                    NumberFormat-DecimalDigits="0" Value="-1" Width="60px">
                </telerik:RadNumericTextBox>
            </ItemTemplate>
        </telerik:RadToolBarButton>
    </Items>
</telerik:RadToolBar>

protected void DeploymentHistoryToolbar_ButtonClick(object sender, Telerik.Web.UI.RadToolBarEventArgs e)
{
    RadNumericTextBox txb1 = (RadNumericTextBox)DeploymentHistoryToolbar.FindItemByValue("TemplateTextBox").FindControl("txtResultCount");
    txb1.Value = -2;
}

Peter
the Telerik team

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