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.v19.2.dll
Declaration
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:
Show 156 property paths
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
Note
A complete sample project is available at https://github.com/DevExpress-Examples/how-to-raise-validation-on-the-client-side-e124
<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>
See Also