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Printing parameterised crystal reports direct to network printer

Posted on 2008-10-24
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Last Modified: 2012-06-27
Hi Experts

I have a VB.net windows app written in VS 2005. I have a viewer page with a report on it, and it works great, users click on a datagrid print icon and the report pops up.

This is my code for that:

    Private Sub cvwPatients_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cvwPatients.Load

        Dim PR As New PatientReferraldb
        Dim dt As DataTable = PR.SelectForPrint(valReferrL_ID) 'send in report id

        rdPatients.SetDataSource(dt)

        With cvwPatients
            .ReportSource = rdPatients
            .ShowTextSearchButton = False
            .ShowExportButton = False
            .DisplayGroupTree = False
            .ShowGroupTreeButton = False
        End With
    End Sub

What I need to be able to do is go to my database to get a list of records not printed, and loop through and print them without a print dialog popping up.

Any ideas on how I might do this, I've googled PrintToPrinter, and guess this is what I must be using, but I cant find any examples of selecting a network printer, or how to pass parameters similar to the way I've done it to display the report.

Andy
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Question by:Andy Green
2 Comments
 
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by:Éric Moreau
Éric Moreau earned 250 total points
ID: 22794728
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Andy Green earned 0 total points
ID: 22825939
I have got this working, in case anone else is looking to do a similar thing, this is how I did it.

Created a form with a CR Viewer called cvwPollReferals and a CR Report Document called rdPollReferrals.

I call the following function to print the report automatically.

    Private Sub DoPrint()

        Dim PR As New clsPatientReferraldb
        Dim dt As DataTable = PR.PollForPrint()

        For Each row As DataRow In dt.Rows

            Dim rPR As New clsPatientReferraldb
            Dim rdt As DataTable = PR.SelectForPrint(row("ReferL_RefNo")) 'send in report id

            rdPollReferrals.SetDataSource(rdt)
            rdPollReferrals.PrintOptions.PrinterName = txtPrinters.Text
            rdPollReferrals.PrintToPrinter(1, False, 0, 0)

            Dim UD As New clsPatientReferraldb
            UD.UpdatePostPrint(row("ReferL_RefNo"))
        Next
       End Sub

On the form I have a Printer selector populated with this code
    Private Sub ListAvailablePrinters()
        For Each strPrinterName As String In PrinterSettings.InstalledPrinters
            txtPrinters.Items.Add(strPrinterName)
        Next
        'Find the Default printer
        Dim PD As New PrintDocument
        txtPrinters.SelectedItem = PD.DefaultPageSettings.PrinterSettings.PrinterName
    End Sub

This came from emoreau's post so thank you for gewtting me started.

Andy
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