Conditional ItemTemplate

[Paul]

Hi

I have the following code.  It all works except that if the ImageDescription contains a null the page of course fails with an error.  I am using a literal because the ImageDescription may actually have some html in it or just plain text.

Is it possible to preform some conditional logic on the value to either fill the text with a set of spaces or a default description like "No description available" for those records where the ImageDescription is null?

                <telerik:RadRotator ID="RadRotator1" runat="server" DataSourceID="LinqDataSource1"
                    Height="340px" Width="450px" ItemHeight="340px" ItemWidth="450px" FrameDuration="7000">
                    <ItemTemplate>
                        <asp:Image ID="Image1" runat="server" ImageUrl='<%# DataBinder.Eval(Container.DataItem, "ImageURL").ToString().Trim() %>'
                            Style="height: auto; width: auto" />
                    </ItemTemplate>
                    <ItemTemplate>
                        <asp:Literal runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "ImageDescription").ToString().Trim() %>'></asp:Literal>
                    </ItemTemplate>
                </telerik:RadRotator>

Thanks Paul

[Fiko]

Hello Paul,

In such case you do not need to use conditions in your logic. I would suggest to use the following approach:

<telerik:RadRotator ID="RadRotator1" runat="server" DataSourceID="LinqDataSource1"
    Height="340px" Width="450px" ItemHeight="340px" ItemWidth="450px">
    <ItemTemplate>
        <asp:Image ID="Image1" runat="server" ImageUrl='<%# DataBinder.Eval(Container.DataItem, "ImageUrl").ToString().Trim() %>'
            Style="height: auto; width: auto" />
    </ItemTemplate>
    <ItemTemplate>
        <asp:Literal ID="Literal1" runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "ImageDescription", "{0}").ToString().Trim() %>'></asp:Literal>
    </ItemTemplate>
</telerik:RadRotator>

I hope this helps.

Greetings,
Fiko
the Telerik team

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[Paul]

Thank You Fiko

You folks are awesome, great product.