CheckBoxProperties.CheckedIsValidOnly Property

Specifies whether only the checked state is valid.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v21.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

[DefaultValue(false)]
public bool CheckedIsValidOnly { get; set; }

VB.NET

<DefaultValue(False)>
Public Property CheckedIsValidOnly As Boolean

Property Value

Type	Default	Description
Boolean	false	true if only the checked state is valid; otherwise, false.

Remarks

The CheckBoxProperties.CheckedIsValidOnly property is in effect for a column that displays Boolean values. Set this property to true to specify that only the checked state is valid for the built-in ASPxCheckBox editor. In this case, the editor validates check states automatically, so you do not need to define the check box as a required field to enable its validation.

When the CheckBoxProperties.CheckedIsValidOnly property value is false or not specified, the IsRequired property defines whether the built-in check box validates its input. With this technique, a validation error occurs for the grayed state only (the checked and unchecked states are valid).

Web Forms Example

ASPX

<dx:ASPxGridView ID="ASPxGridView1" runat="server">
    <!--...-->
    <Columns>
        <!--...-->
        <dx:GridViewDataCheckColumn FieldName="Discontinued">
            <PropertiesCheckEdit AllowGrayed="true" CheckedIsValidOnly="true" />
        </dx:GridViewDataCheckColumn>
    </Columns>
</dx:ASPxGridView>

MVC Example

CSHTML

@Html.DevExpress().GridView(settings => {
    settings.Name = "MVCxGridView1";
    //...
    settings.Columns.Add(c => {
        c.FieldName = "Discontinued";
        c.ColumnType = MVCxGridViewColumnType.CheckBox;
        CheckBoxProperties checkBoxSettings = new CheckBoxProperties 
        { 
            AllowGrayed = true, 
            CheckedIsValidOnly = true 
        };
        c.PropertiesEdit.Assign(checkBoxSettings);
    });
}).Bind(Model).GetHtml()