RadComboBox + ItemTemplate + Databind

[Philip]

Hello,

I'm using the newest Prometheus version  2007.3 1425.

Using the example from the documentation does not work.

<telerik:RadComboBox ID="RadComboBox2" runat="server" Height="190px" Width="350px">
    <ItemTemplate>
        <table>
            <tr>
                <td>
                    Test
                </td>
                <td>
                    <%# DataBinder.Eval(Container.DataItem, "Text")%>
                </td>
            </tr>
        </table>
    </ItemTemplate>
    <Items>
        <telerik:RadComboBoxItem
            Text="Winter">
        </telerik:RadComboBoxItem>
        <telerik:RadComboBoxItem
            Text="Fall">
        </telerik:RadComboBoxItem>
    </Items>
</telerik:RadComboBox>

The textfield ist not displayed in the dropdown. What do I wrong?

Thanks and kind regards,

Phil

[Veselin Vasilev]

Hi Philip,

Since you are in Unbound mode you need to call the Eval method in the following way:

<%# DataBinder.Eval(Container, "Text")%> instead of <%# DataBinder.Eval(Container.DataItem, "Text")%>

You can find more information here: Controls > RadComboBox > Templates > Data Binding in Templates

I hope this helps.

Kind regards,
Veskoni
the Telerik team

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[Philip]

Hi,

thank you, for this incredible fast answer. In my first attempts I used only Container, without DataItem. This even didn't work in my posted example.

Even if I copy and paste the first example on Controls > RadComboBox > Templates > Templates Overview it doesn't work.

[Veselin Vasilev]

Hello Philip,

Did you DataBind() the combobox in the Page_Load event?

protected void Page_Load(object sender, EventArgs e)
{
    RadComboBox2.DataBind();
}

Sincerely yours,
Veskoni
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

[Philip]

Hi!

No, there is no databinding in my Page_Load Event.

Is it necessary to databind the combobox even when I fill the combobox only staticly per ASP?

[Veselin Vasilev]

Hello Philip,

Yes, it is necessary. Here is an extract from the online help article I pointed out:

In addition to adding a DataBinder.Eval statement, you must also explicitly call the DataBind method for the items so that the template has access to the Text property.

All the best,
Veskoni
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

[Philip]

Ok, I will try this.

Thank you for your continuos fast answers.

Philip