I need your help desperately on Crystal report [modified]
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I have a crystal report, report viewer and a database. the Crystal Report gets its data when datagridview1 item is selected(changed). But I couldn't find the problem why variable "disv3" can't get value at run time. "DS" is my crystal report dataset which acts as datasource. Dim rpt As New GradeReport Dim dd As New DS rpt.SetDataSource(dd) Dim paramfield1, param2, param3 As New ParameterField Dim paramfields As New ParameterFields Dim discreteval1, disv2, disv3 As ParameterDiscreteValue paramfield1.Name = "column1" param2.Name = "column2" param3.Name = "column3" TextBox5.Text = "introduction to management" ' For i As Integer = 0 To DataGridView1.Rows.Count - 1 discreteval1 = New ParameterDiscreteValue discreteval1.Value = DataGridView1.CurrentCell.Value.ToString paramfield1.CurrentValues.Add(discreteval1) disv2 = New ParameterDiscreteValue disv2.Value = DataGridView1.CurrentRow.Cells(1).Value.ToString param2.CurrentValues.Add(disv2) disv3 = New ParameterDiscreteValue ' TextBox5.DataBindings.Add(New Binding("text", bs, "coursename")) c.custView = New DataView(c.ds.Tables("student"), "", "studid", DataViewRowState.CurrentRows) For c.rowIndex = 0 To c.ds.Tables("student").Rows.Count - 1 disv3.Value = c.custView(c.rowIndex)("StudentFullName").ToString param3.CurrentValues.Add(disv3) Next paramfields.Add(paramfield1) paramfields.Add(param2) paramfields.Add(param3) GradeReportForm.CrystalReportViewer1.ParameterFieldInfo = paramfields GradeReportForm.CrystalReportViewer1.AutoSize = True 'Next GradeReportForm.CrystalReportViewer1.ReportSource = rpt GradeReportForm.Show() GradeReportForm.CrystalReportViewer1.Refresh()
modified on Tuesday, August 18, 2009 5:09 AM