ValidationSettings.Display Property

Specifies whether an editor renders an empty space for the error message initially or dynamically when the editor fails validation.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v23.1.dll

NuGet Package: DevExpress.Web

Declaration

C#

[DefaultValue(Display.Static)]
public Display Display { get; set; }

VB.NET

<DefaultValue(Display.Static)>
Public Property Display As Display

Property Value

Type	Default	Description
Display	Static	One of the numeration values.

Available values:

Name	Description	Image
Static	An editor initially renders an empty space reserved for the error message.
Dynamic	An editor renders the space for the error message dynamically at the moment the editor fails validation.
None	No error message is displayed.

Property Paths

You can access this nested property as listed below:

Object Type	Path to Display
ASPxEdit	.ValidationSettings .Display
EditProperties	.ValidationSettings .Display

Remarks

When an editor is displayed inside another control, for instance, is the ASPxGridView or ASPxFormLayout, set the Display property to Dynamic to not render the empty space (the validation error element) near the editor.

Grid Example

ASPX (Web Forms)

<dx:GridViewDataSpinEditColumn FieldName="UnitPrice">
    <PropertiesSpinEdit DisplayFormatString="c" DisplayFormatInEditMode="true" MinValue="0" MaxValue="60000">
        <ValidationSettings Display="Dynamic" RequiredField-IsRequired="true" />
    </PropertiesSpinEdit>
</dx:GridViewDataSpinEditColumn>

C# (MVC)

settings.CellEditorInitialize = (s, e) ={
    ASPxEdit editor = (ASPxEdit)e.Editor;
    editor.ValidationSettings.Display = Display.Dynamic;
};

Form Layout Example

ASPX (Web Forms)

<dx:LayoutGroup Caption="Personal Information" ColCount="2">
    <Items>
        <dx:LayoutItem Caption="First Name" FieldName="FirstName">
            <LayoutItemNestedControlCollection>
                <dx:LayoutItemNestedControlContainer runat="server" SupportsDisabledAttribute="True">
                    <dx:ASPxTextBox ID="firstNameTextBox" runat="server" Width="100%">
                        <ValidationSettings RequiredField-IsRequired="true" Display="Dynamic" />
                    </dx:ASPxTextBox>
                </dx:LayoutItemNestedControlContainer>
            </LayoutItemNestedControlCollection>
        </dx:LayoutItem>
        <dx:LayoutItem Caption="Last Name" FieldName="LastName">
            <LayoutItemNestedControlCollection>
                <dx:LayoutItemNestedControlContainer runat="server" SupportsDisabledAttribute="True">
                    <dx:ASPxTextBox ID="lastNameTextBox" runat="server" Width="100%" />
                </dx:LayoutItemNestedControlContainer>
            </LayoutItemNestedControlCollection>
        </dx:LayoutItem>
        <dx:LayoutItem Caption="Birth Date" FieldName="BirthDate">
            <LayoutItemNestedControlCollection>
                <dx:LayoutItemNestedControlContainer runat="server" SupportsDisabledAttribute="True">
                    <dx:ASPxDateEdit ID="birthDateEdit" runat="server" />
                </dx:LayoutItemNestedControlContainer>
            </LayoutItemNestedControlCollection>
        </dx:LayoutItem>
    </Items>
</dx:LayoutGroup>