ASPxComboBox.Columns Property

Gets an editor’s column collection.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v24.2.dll

Declaration

C#

public ListBoxColumnCollection Columns { get; }

VB.NET

Public ReadOnly Property Columns As ListBoxColumnCollection

Property Value

Type	Description
ListBoxColumnCollection	A column collection within the editor.

Remarks

The Columns property allows you to access the editor’s column collection when the control is in data-bound mode. You can also use the index notation to add, delete, or configure columns.

ASPX

<dx:ASPxComboBox ID="CmbCustomers" runat="server" DataSourceID="CustomersDataSource" 
  ValueField="CustomerID" ValueType="System.String" TextFormatString="{0}" EnableCallbackMode="true">
    <Columns>
        <dx:ListBoxColumn FieldName="ContactName" />
        <!--...-->
    </Columns>
</dx:ASPxComboBox>

Run Demo: ASPxComboBox - Multi-Column Mode View Example: Combo Box for ASP.NET Web Forms - How to get hidden column values on the client

Concepts

• List Editors in Multi-Column Mode