I have written the code for excel file upload. The error which i am getting is
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. |
Stack Trace:
[NullReferenceException: Object reference not set to an instance of an object.] Master_UploadLvOPBal.btnUpload_Click(Object sender, EventArgs e) +3693 System.Web.UI.WebControls.Button.OnClick(EventArgs e) +114 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +139 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +28 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2980 |
It is working locally but when I published on IIS it's not working.
I have added Ajax Control Tool kit (DLL) but still it's giving me the error.