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.v24.1.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:

Object Type	Path to CausesValidation
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.

Online Example

View Example: How to raise validation on the client

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>