Is Dropdown Postback Not Working in Sitecore?

Wondering why your page is not getting postback when you select any dropdown item even-though you have set AutoPostback property to true? If so, then it can be fixed by adding below configuration in your web.config file under    <typesThatShouldNotBeExpanded> section.

                    System.Web.UI.WebControls.Repeater         System.Web.UI.WebControls.DataList         System.Web.UI.WebControls.GridView         System.Web.UI.WebControls.ListView         System.Web.UI.WebControls.FormView         Microsoft.Reporting.WebForms.ReportViewer         Telerik.Web.UI.RadGrid         System.Web.UI.WebControls.LoginView         System.Web.UI.WebControls.DropDownList         

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