CheckBoxProperties.ValueUnchecked Property

Gets or sets the value that represents the editor’s unchecked state.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v24.1.dll

NuGet Package: DevExpress.Web

Declaration

C#

[DefaultValue(false)]
public object ValueUnchecked { get; set; }

VB.NET

<DefaultValue(False)>
Public Property ValueUnchecked As Object

Property Value

Type	Default	Description
Object	false	A Object value that represents the unchecked state of the check box editor.

Remarks

Use the ValueUnchecked property to specify the value which represents the unchecked state of the check box editor. This value is assigned to the editor’s ASPxEditBase.Value when the editor is switched to the unchecked state.

Note

• The ValueUnchecked property synchronizes its value with the editor’s ASPxCheckBox.ValueUnchecked property.
• The ValueUnchecked property is not in effect for the radio button.

Example

This example illustrates how to customize ASPxCheckBox and GridViewDataCheckColumn if database data is kept in a format different from Boolean.

Default.aspx

<dx:ASPxGridView ID="grid" runat="server" AutoGenerateColumns="False" DataSourceID="xds"
    KeyFieldName="Oid">
    <Columns>
        <dx:GridViewCommandColumn VisibleIndex="0" ShowEditButton="True"/>
        <dx:GridViewDataTextColumn FieldName="Oid" ReadOnly="True" VisibleIndex="1" SortOrder="Ascending">
        </dx:GridViewDataTextColumn>
        <dx:GridViewDataTextColumn FieldName="Title" VisibleIndex="2" Visible="false">
            <EditFormSettings Visible="True" />
        </dx:GridViewDataTextColumn>
        <dx:GridViewDataCheckColumn FieldName="Allow" VisibleIndex="3">
            <PropertiesCheckEdit AllowGrayed="true" ValueType="System.String" ValueChecked="allowed"
                ValueUnchecked="not allowed" ValueGrayed="no information" />
        </dx:GridViewDataCheckColumn>
        <dx:GridViewDataCheckColumn FieldName="Active" VisibleIndex="4">
            <DataItemTemplate>
                <dx:ASPxCheckBox ID="chk" runat="server" AllowGrayed="true" ValueType="System.Int32"
                    ValueChecked="1" ValueUnchecked="-1" ValueGrayed="0" Value='<%# Eval("Active") %> '
                    OnInit="chk_Init">
                </dx:ASPxCheckBox>
            </DataItemTemplate>
            <EditFormSettings Visible="False" />
        </dx:GridViewDataCheckColumn>
    </Columns>
</dx:ASPxGridView>
<dx:XpoDataSource ID="xds" runat="server" TypeName="MyObject">
</dx:XpoDataSource>

XpoHelper.cs

static void CreateDefaultObjects() {
    using (UnitOfWork uow = GetNewUnitOfWork()) {
        MyObject obj = new MyObject(uow);
        obj.Title = "Test1";
        obj.Active = 1;
        obj.Allow = "allowed";

        obj = new MyObject(uow);
        obj.Title = "Test2";
        obj.Active = 0 ;
        obj.Allow = "allowed";

        obj = new MyObject(uow);
        obj.Title = "Test3";
        obj.Active = -1;
        obj.Allow = "no information";

        obj = new MyObject(uow);
        obj.Title = "Test4";
        obj.Active = 0;
        obj.Allow = "not allowed";

        uow.CommitChanges();
    }
}