IModelActionWeb.IsPostBackRequired Property

Specifies whether a postback should be performed when the Action is executed.

Namespace: DevExpress.ExpressApp.Web.SystemModule

Assembly: DevExpress.ExpressApp.Web.v19.2.dll

Declaration

C#

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

VB.NET

<DefaultValue(False)>
Property IsPostBackRequired As Boolean

Property Value

Type	Default	Description
Boolean	**false**	true, to perform a postback when the Action is executed; false, to perform a callback.

Remarks

Set the IsPostBackRequired property to true for Actions that should be executed on postback. For instance, the built-in Export Action is executed on postback, because a postback is required to transmit a file to the client. An example of using this property is provided in the How to: Print a Report Without Displaying a Preview topic.

Important

Set this property to true when implementing a custom Action that initiates a file download in a web application.