ValidationSettings.CausesValidation Property

Gets or sets a value that specifies whether validation is performed when the editor is set to validate when a postback occurs.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v21.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

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

VB.NET

<DefaultValue(False)>
Public Property CausesValidation As Boolean

Property Value

Type	Default	Description
Boolean	false	true if validation is performed when the editor is set to validate when a postback occurs; otherwise, false.

Property Paths

You can access this nested property as listed below:

Library	Object Type	Path to CausesValidation
ASP.NET Bootstrap Controls	BootstrapSchedulerDateNavigatorProperties	.ValidationSettings .CausesValidation
ASP.NET Web Forms Controls	ASPxEdit	.ValidationSettings .CausesValidation
	EditProperties	.ValidationSettings .CausesValidation

Remarks

If the CausesValidation and ASPxEdit.AutoPostBack properties are set to true, the validation of the editor forces a whole group (specified via the ValidationSettings.ValidationGroup property) validation.

Example

View Example

Default.aspx (C#)

<dx:ASPxComboBox ID="cbComboBox2" runat="server" AutoPostBack="True">
    <Items>
        <dx:ListEditItem Value="" Text="(Empty)" />
        <dx:ListEditItem Value="Some value" Text="Some value" />
    </Items>                    
    <ValidationSettings CausesValidation="True" ValidationGroup="CausesValidationDemoGroup">
        <RequiredField IsRequired="True" ErrorText="Select not empty value." />
    </ValidationSettings>
</dx:ASPxComboBox>
<br />
<dx:ASPxComboBox ID="cbComboBox3" runat="server" AutoPostBack="True">
    <Items>
        <dx:ListEditItem Value="" Text="(Empty)" />
        <dx:ListEditItem Value="Some value" Text="Some value" />
    </Items>                    
    <ValidationSettings CausesValidation="True" ValidationGroup="CausesValidationDemoGroup">
        <RequiredField IsRequired="True" ErrorText="Select not empty value." />
    </ValidationSettings>
</dx:ASPxComboBox>
<br />
<dx:ASPxComboBox ID="ASPxComboBox2" runat="server" AutoPostBack="True">
    <Items>
        <dx:ListEditItem Value="" Text="(Empty)" />
        <dx:ListEditItem Value="Some value" Text="Some value" />
    </Items>                    
    <ValidationSettings CausesValidation="True" ValidationGroup="CausesValidationDemoGroup">
        <RequiredField IsRequired="True" ErrorText="Select not empty value." />
    </ValidationSettings>
</dx:ASPxComboBox>

Default.aspx (VB.NET)

<dx:ASPxComboBox ID="cbComboBox2" runat="server" AutoPostBack="True">
    <Items>
        <dx:ListEditItem Value="" Text="(Empty)" />
        <dx:ListEditItem Value="Some value" Text="Some value" />
    </Items>                    
    <ValidationSettings CausesValidation="True" ValidationGroup="CausesValidationDemoGroup">
        <RequiredField IsRequired="True" ErrorText="Select not empty value." />
    </ValidationSettings>
</dx:ASPxComboBox>
<br />
<dx:ASPxComboBox ID="cbComboBox3" runat="server" AutoPostBack="True">
    <Items>
        <dx:ListEditItem Value="" Text="(Empty)" />
        <dx:ListEditItem Value="Some value" Text="Some value" />
    </Items>                    
    <ValidationSettings CausesValidation="True" ValidationGroup="CausesValidationDemoGroup">
        <RequiredField IsRequired="True" ErrorText="Select not empty value." />
    </ValidationSettings>
</dx:ASPxComboBox>
<br />
<dx:ASPxComboBox ID="ASPxComboBox2" runat="server" AutoPostBack="True">
    <Items>
        <dx:ListEditItem Value="" Text="(Empty)" />
        <dx:ListEditItem Value="Some value" Text="Some value" />
    </Items>                    
    <ValidationSettings CausesValidation="True" ValidationGroup="CausesValidationDemoGroup">
        <RequiredField IsRequired="True" ErrorText="Select not empty value." />
    </ValidationSettings>
</dx:ASPxComboBox>