DevTools for .NET

Answered Determine which link was clicked inside RadRotator

Ronnie

Posted on Feb 9, 2012 (permalink)

I have a RadRotator with 2 different LinkButtons inside the template. Each LinkButton has a command argument that is pulled from the database. What is the easiest way to determine which LinkButton was clicked in the Rotator_ItemClick event? The problem that I am having is that I can't determine which LinkButton was clicked so that I can execute specific server side code.

<telerik:RadRotator ID="RadRotator1" runat="server"

    DataSourceID="dsProducts" RotatorType="CoverFlowButtons" Skin="Forest" Width="625px"

    Height="350px" ItemHeight="350px" ItemWidth="551px" PauseOnMouseOver="true"

        BorderStyle="None">

    <ItemTemplate>

        <asp:LinkButton ID="lnkAddTestimonial" runat="server" CommandName="AddTestimonial"

        CommandArgument='<%# Eval("ProductID") %>'>Add Review</asp:LinkButton>

        <asp:LinkButton ID="lnkViewTestimonials" runat="server" CommandName="ViewTestimonials"

        CommandArgument='<%# Eval("ProductID") %>'>Read Reviews</asp:LinkButton>

    </ItemTemplate>

</telerik:RadRotator>

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Answer Kevin Master

Posted on Feb 13, 2012 (permalink)

Hello Ronnie,

You should create a separate event handler for the two LinkButtons. So you create a single event handler called Testimonial_Command and attach it to both of the buttons. Like so:

ASPX:

<telerik:RadRotator ID="RadRotator1" runat="server"

    DataSourceID="dsProducts" RotatorType="CoverFlowButtons" Skin="Forest" Width="625px"

    Height="350px" ItemHeight="350px" ItemWidth="551px" PauseOnMouseOver="true"

        BorderStyle="None">

    <ItemTemplate>

        <asp:LinkButton ID="lnkAddTestimonial" runat="server" CommandName="AddTestimonial"

        CommandArgument='<%# Eval("ProductID") %>' OnCommand="Testimonial_Command">Add Review</asp:LinkButton>

        <asp:LinkButton ID="lnkViewTestimonials" runat="server" CommandName="ViewTestimonials"

        CommandArgument='<%# Eval("ProductID") %>' OnCommand="Testimonial_Command">Read Reviews</asp:LinkButton>

    </ItemTemplate>

</telerik:RadRotator>

Code:

protected void Testimonial_Command(object sender, CommandEventArgs e)

{

    if (e.CommandName == "AddTestimonial")

    {

        // do this

    }

    else if (e.CommandName == "ViewTestimonial")

    {

        // do this instead

    }

}

I hope that helps.

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