If you are using Update Panel and try to Export gridview contents to EXCEL or Word, your asp.net page will throw nasty error. “Sys.WebForms.PageRequestManagerParserErrorException” Its because AJAX & Response.write don’t go together.  By calling Response.Write() directly you are bypassing the normal rendering mechanism of ASP.NET controls. The bits you write are going straight out to the… (0 comment)

Recently if your webservices started failing / timing out it its worth your time to take a look at this support article. “HttpException (0x80004005): Request timed out.” “System.InvalidOperationException: There were not enough free threads in the ThreadPool object to complete the operation”  Contention, poor performance, and deadlocks when you make Web service requests from ASP.NET… (0 comment)

Filter Datatable by Rows If you need to get subset of a big dataset into datatable Rowwise … [sourcecode language=’vb’] Dim dtEmp as DataTable Dim dsEmployee as New DataSet dsEmployee = someobject.getdata()  ‘dataset can be populated in many ways which is not explained here. Dim sExpr as String Dim drRows() as DataRow, drSingleRow as DataRow… (2 comments)