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RadComboBox values datasource and data binding from another datasource

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ComboBox

This is a migrated thread and some comments may be shown as answers.

Keiichi-kun asked on 06 Oct 2015, 10:53 AM

Hi all,
I've a RadComboBox inside EditItemTemplate

1.<telerik:RadComboBox Skin="Silk" ID="cognome_sostituto_combo" runat="server" DataSourceID="SqlDataSourceGiocatori1" DataTextField="Cognome" DataValueField="Cognome" DropDownWidth="200px" MinFilterLength="2" Filter="StartsWith" AllowCustomText="false" Text='<%# Bind("Cognome_sostituto")%>' >

(NOTE: this code is inside a GridView with <Columns><TemplateField>)

My scope is:

- populate combo with items from SqlDataSourceGiocatori1 (that has a query like select cognome from ....) --> done
- set selected item from SqlDataSource connected to GridView --> not working using Text='<%# Bind... --> not working

If I use, for example, a TextBox and bind Text with Text='<%# Bind("Cognome_sostituto")%>' everything is ok but there's no autocomplete.

The error I get is "Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control"

Any ideas?

Thanks for your help

RadComboBox values datasource and data binding from another datasource

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