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IModelActionWeb.IsPostBackRequired Property

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

Namespace: DevExpress.ExpressApp.Web.SystemModule

Assembly: DevExpress.ExpressApp.Web.v19.1.dll


bool IsPostBackRequired { get; set; }
Property IsPostBackRequired As Boolean

Property Value

Type Default Description


true, to perform a postback when the Action is executed; false, to perform a callback.


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.


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

See Also