my scenario is something like that i have one common report viewer in one win form and every body call that win form and pass required parameter and dataset. that form collect those data and bind ssrs report. now the problem is that a report may have 5 subreport and may have 3 subreport. that form has one event for handling subreport. private void reportViewer1_suberport1(object sender, SubreportProcessingEventArgs e){ // code here to bind subreport} whenever any person call my winform which has report viewer and if that report has subreport then person has to write code inside reportViewer1_suberport1 event to bind his report. my sample code for reportViewer1_suberport1 event private void reportViewer1_suberport1(object sender, SubreportProcessingEventArgs e){Select Case e.ReportPath Case "subreport1" Dim tbl As DataTable = New DataTable("TableName") Dim Status As DataColumn = New DataColumn Status.DataType = System.Type.GetType("System.String") Status.ColumnName = "Status" tbl.Columns.Add(Status) Dim Account As DataColumn = New DataColumn Account.DataType = System.Type.GetType("System.String") Account.ColumnName = "Account" tbl.Columns.Add(Account) Dim rw As DataRow = tbl.NewRow() rw("Status") = core.GetStatus rw("Account") = core.Account tbl.Rows.Add(rw) e.DataSources.Add(New ReportDataSource("ReportDatasourceName", tbl)) Case "subreport2" core.DAL.cnStr = My.Settings.cnStr core.DAL.LoadSchedule() e.DataSources.Add(New ReportDataSource("ScheduledTasks", _ My.Forms.Mother.DAL.dsSQLCfg.tSchedule)) Case "subreport3" core.DAL.cnStr = My.Settings.cnStr Dim dt As DataTable = core.DAL.GetNodesForDateRange(DateAdd("d", _ -1 * CInt(e.Parameters("NumberOfDays").Values(0)), _ Today), _ Now) e.DataSources.Add(New ReportDataSource("Summary", dt))End Select End Sub i need a good way for write generic code inside the above routine as a result any number of subreport can be bind. please put some light & guide me. thanks