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AjaxOptions.OnBegin Property

.NET Framework 4

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Gets or sets the name of the JavaScript function to call immediately before the page is updated.

Namespace: System.Web.Mvc.Ajax
Assembly: System.Web.Mvc (in System.Web.Mvc.dll)

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public string OnBegin { get; set; }

Type: System.String
The name of the JavaScript function to call before the page is updated.

The JavaScript function is called by MVC after the HttpRequest object is instantiated but before it is invoked.

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