[Solved] 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

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[Philip]

Ok, I will try this.

Thank you for your continuos fast answers.

Philip