ASP.Net RDLC Error: The code on this page disabled back and forward caching

on Mar 20, 2022 10:27 AM

Please help my rdlc reports comes out empty yet there is data in the table please help.


    Private Function GetData() As DataTable
        Dim classrd As String = Request.QueryString("class")
        Dim intaked As String = Request.QueryString("intake")
        Dim fromsd As DateTime = Request.QueryString("From")
        Dim Tosd As DateTime = Request.QueryString("Tosd")

        Dim dt As New DataTable()
        'create a new DateTable ,used to store the table from DB.
        Dim conString As String = ConfigurationManager.ConnectionStrings("INTERVIEWSConnectionString").ConnectionString

        Using con As New SqlConnection(conString)
            ' Dim con As New SqlConnection(conn)
            'establish the table to DataBase
            Dim cmd As New SqlCommand("Runclasscontrol", con)
            'pass the parameter in sql command which is a stored procedure name in your DB.
            cmd.CommandType = CommandType.StoredProcedure
            'command type is stored procedure type.
            Dim idatefro As String = DateTime.Parse(fromsd).ToString("dd/MM/yyyy", CultureInfo.InvariantCulture)
            Dim idateto As String = DateTime.Parse(Tosd).ToString("dd/MM/yyyy", CultureInfo.InvariantCulture)
            cmd.Parameters.AddWithValue("@c", classrd)
            cmd.Parameters.AddWithValue("@it", intaked)
            cmd.Parameters.Add("@f", SqlDbType.DateTime).Value = idatefro
            'add the parameter and its type ,which are from date  from textbox .
            cmd.Parameters.Add("@t", SqlDbType.DateTime).Value = idateto
            'add the parameter and its type ,which are to date  from textbox .
            Dim adt As New SqlDataAdapter(cmd)
            'pass the cammond to the sqlDataAdapter as a parameter
            'fill the fetched data to the data table.
            Return dt
            ' return the Data Table.

        End Using
    End Function


    Private Sub Report()

        'Dim dt As DataTable = GetData(DateTime.Parse(txtFrom.Text), DateTime.Parse(txtTo.Text))
        ' Try
        ReportViewer1.ProcessingMode = ProcessingMode.Local

        Dim fee As String = Request.QueryString("formfee")
        Dim classr As String = Request.QueryString("class")
        Dim intake As String = Request.QueryString("intake")
        Dim froms As String = Request.QueryString("From")
        Dim Tos As String = Request.QueryString("Tos")
        Dim dt As DataTable = GetData()
        'calls the GetDate function which receives the from date and todate ,which are fetched from textboxs.
        Dim dt2 As DataTable = GetSPResult2022()
        Dim rds As New ReportDataSource("DataSet1", dt)
        'load the dataset and the datatable to reportDataSource.
        ReportViewer1.Visible = True
        'bind the reportDataSource with the report.
        ReportViewer1.LocalReport.ReportPath = Server.MapPath("~/Reports/Collectionsdata.rdlc")
        Dim rpt As ReportParameter() = New ReportParameter() {New ReportParameter("From", froms), New ReportParameter("To", Tos), New ReportParameter("Fee", fee)}
        'just to display in textboxes from date and to date ,pass the parameters  .
        'Note:the first parameter of the ReportParameter() should be same as parameter in the report.rdlc
        ReportViewer1.LocalReport.DataSources.Add(New Microsoft.Reporting.WebForms.ReportDataSource("DataSet2", dt2))

        ' Catch ex As Exception
        'End Try

    End Sub

store procedure

PROCEDURE [dbo].[Runclasscontrol] @c nvarchar(50),@it nvarchar(50),@f nvarchar(50), @t nvarchar(50)AS
SELECT account,avgs2,Emarksdate,status, taken, stream,fno,upper(Name) as name , student.Class, student.Intake, student.Category, student.Maths, student.Eng,, ([maths]+[eng])/2 AS Average, student.Username,avgs,username,usernamemarks,Left([Name],1) as Letter,id
FROM student
WHERE (((student.Class)=@c) AND ((student.Intake)=@it)) and  (status IS NULL) and ([entry] BETWEEN CONVERT(datetime,@f,103) AND CONVERT(datetime,@t,103))
ORDER BY class,student.Name, [maths]+[eng]/2 DESC;

DOM7011: The code on this page disabled back and forward caching. For more information, see: Finance.aspx

HTML1300: Navigation occurred. Finance.aspx

DOM7011: The code on this page disabled back and forward caching. For more information, see: Finance.aspx

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on Mar 21, 2022 09:25 AM

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