Web Forms :: Require Go Which File Which Line No Error And How To Remove This

Sep 17, 2010

i require go which file which line no error and how ro remove thsiSystem.NullReferenceException: Object reference not set to an instance of an object

at System.Web.UI.WebControls.ListBox.SelectMultiple (System.String[] values) [0x00000] in <filename unknown>:0
at System.Web.UI.WebControls.ListBox.LoadPostData (System.String postDataKey, System.Collections.Specialized.NameValueCollection postCollection) [0x00000] in <filename unknown>:0
at System.Web.UI.WebControls.ListBox.System.Web.UI.IPostBackDataHandler.LoadPostData (System.String postDataKey, System.Collections.Specialized.NameValueCollection postCollection) [0x00000] in <filename unknown>:0
at System.Web.UI.Page.ProcessPostData (System.Collections.Specialized.NameValueCollection data, Boolean second) [0x00000] in <filename unknown>:0
at System.Web.UI.Page.ProcessPostData () [0x00000] in <filename unknown>:0
at System.Web.UI.Page.InternalProcessRequest () [0x00000] in <filename unknown>:0
at System.Web.UI.Page.ProcessRequest (System.Web.HttpContext context) [0x00000] in <filename unknown>:0

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