Cannot access asp controls in rad panel bar

[khalid]

Hello,

I am using a rad panel bar in which i have buttons, now i want to change the button css from the code behind but the button is inaccessible.

here is the code snippet

<

 

telerik:RadPanelBar runat="server" ID="RadPanelBar1" BorderColor="transparent" BackColor="transparent"

 

 

AllowCollapseAllItems="true" Style="" Height="550px" Width="200px" ExpandMode="singleExpandedItem"

 

 

Skin="Telerik">

 

 

<Items>

 

 

<telerik:RadPanelItem Text="Home" Expanded="True" runat="server">

 

 

<Items>

 

 

<telerik:RadPanelItem runat="server">

 

 

<ItemTemplate>

 

 

<asp:LinkButton ID="LinkButton13" runat="server" CssClass="MyGridView" OnClick="LinkButton13_Click"

 

 

Height="25px" Width="200px" Font-Names="Verdana" Font-Size="8pt" Font-Underline="False"

 

 

ForeColor="Blue" OnClientClick="javascript:ToggleCollapsePane('LeftPane')">

 

 

National</asp:LinkButton>

 

 

</ItemTemplate>

 

 

</telerik:RadPanelItem>

 

 

</Items>

 

 

</telerik:RadPanelItem>

 

 

</Items>

 

 

</telerik:RadPanelBar>


code behind

 

 

protected void LinkButton13_Click(object sender, EventArgs e)

 

{

 

LinkButton13.CssClass="Test";

}
 

it is displaying error "linkbutton13 does not exist in the current context" 

 

 

[Princy]

Hello Khalid,

Try out the following code to set the css class for the linkbutton inside the RadPanelItem on clicking the linkbutton.
cs:

protected void LinkButton13_Click(object sender, EventArgs e)
    {
        LinkButton lnkbtn = (LinkButton)sender;
        lnkbtn.CssClass = "Test";
    }

Thanks
Princy.

[Paul]

Hello Khalid,

You have to use the FindControl() method to get reference to the templated control(s).

ASPX:

<telerik:RadPanelBar runat="server" ID="RadPanelBar1" BorderColor="transparent" BackColor="transparent"
    AllowCollapseAllItems="true" Style="" Height="550px" Width="200px" ExpandMode="singleExpandedItem"
    Skin="Telerik">
    <Items>
        <telerik:RadPanelItem Text="Home" Expanded="True" runat="server">
            <Items>
                <telerik:RadPanelItem runat="server" Value="templateHolder">
                    <ItemTemplate>
                        <asp:LinkButton ID="LinkButton13" runat="server" CssClass="MyGridView" OnClick="LinkButton13_Click"
                            Height="25px" Width="200px" Font-Names="Verdana" Font-Size="8pt" Font-Underline="False"
                            ForeColor="Blue" OnClientClick="javascript:ToggleCollapsePane('LeftPane')">National</asp:LinkButton>
                    </ItemTemplate>
                </telerik:RadPanelItem>
            </Items>
        </telerik:RadPanelItem>
    </Items>
</telerik:RadPanelBar>

Code-behind:

protected void LinkButton13_Click(object sender, EventArgs e)
{
    LinkButton myLinkButton = (LinkButton)RadPanelBar1.FindItemByValue("templateHolder").FindControl("LinkButton13");
    myLinkButton.CssClass = "Test";
}

Best wishes,
Paul
the Telerik team

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