I am using Ajax in my Sharepoint 2007 webpart and i already have successfully followed Ajax enabling steps and still i am getting following error on IE window
"The control with ID 'TabContainer' requires a ScriptManager on the page. The ScriptManager must appear before any controls that need it."
NOTE: I have already placed script manager in my default.master in form tag
and i am also maintaining Exception Log and in my Exception Log i am also getting following error with above error
System.IO.FileLoadException: The given assembly name or codebase was invalid. (Exception from HRESULT: 0x80131047) at Microsoft.SharePoint.WebControls.DateTimeControl.OnInit(EventArgs e) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.AddedControl(Control control, Int32 index) at System.Web.UI.ControlCollection.Add(Control child) at AjaxControlToolkit.TabPanel.OnInit(EventArgs e) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.AddedControl(Control control, Int32 index) at System.Web.UI.ControlCollection.Add(Control child) at slnHieconPortal.wpEmployeeLeaveInfo.wpEmployeeLeaveInfo.CreateChildControls()
So, can anyone tell what i am doing wrong? Some suggestion would be helpful.