Refresh a parent page from a child iframe, with codebehind two pages 1. Parent page = "TaskSummary.aspx"-Summary with data in grid 2. iframe = "CreateTask.aspx" -New Task Creation page with save button .When i close save button from popup page ,i want to refresh TaskSummary.aspx page grid <div class="modal-body p15"> <iframe id="NewTaskframe" runat="server" src="CreateTask.aspx?TaskId=&MasterPopUp=ppm" name="NewTaskframe" style="width: 100%; height: 600px;" frameborder="0" allowtransparency="yes" scrolling="yes"></iframe> </div>