ListBoxProperties.DataSecurityMode Property

Gets or sets whether users can select values that do not exist in the Items collection.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v24.1.dll

NuGet Package: DevExpress.Web

Declaration

C#

[DefaultValue(DataSecurityMode.Default)]
public DataSecurityMode DataSecurityMode { get; set; }

VB.NET

<DefaultValue(DataSecurityMode.Default)>
Public Property DataSecurityMode As DataSecurityMode

Property Value

Type	Default	Description
DataSecurityMode	Default	An enumeration value.

Available values:

Name	Description
Default	The data editor allows users to enter and select custom items.
Strict	The data editor does not allow users to enter and select custom items.

Remarks

Note

The ListBoxExtension‘s DataSecurityMode property has no effect.

The list box editor allows users to select values that do not exist in the bound item collection. Set the editor’s DataSecurityMode property to Strict to prevent users from setting the editor Value to a value not listed in the Items collection. Refer to the following topic for more information: Validation in List Editors.

ASPX

<dx:ASPxListBox ID="ASPxListBox1" runat="server" DataSecurityMode="Strict" EnableSynchronization="False">
    <Items>
        <dx:ListEditItem Text="Item 1" Value="Item 1" />
        <dx:ListEditItem Text="Item 2" Value="Item 2" />
        <dx:ListEditItem Text="Item 3" Value="Item 3" />
    </Items>
</dx:ASPxListBox>

When the list box is in Strict security mode, the EnableSynchronization is not in effect.