Hi smile,

You have to manually load the report in ReportDocument using the path.

For crystal report refer below article.

Basic Crystal Report Tutorial with example in Windows Forms (WinForms) Application using C# and VB.Net

Change the Form1_Load event code with below.

C#

private void Form1_Load(object sender, EventArgs e)
{
    Customers dsCustomers = GetData();
    ReportDocument crystalReport = new ReportDocument();
    crystalReport.Load(Application.StartupPath.Replace("bin\Debug","") + "AB\\CrystalReport\\rptStuData.rpt");
    crystalReport.SetDataSource(dsCustomers);
    this.crystalReportViewer1.DisplayGroupTree = false;
    this.crystalReportViewer1.ReportSource = crystalReport;
    this.crystalReportViewer1.RefreshReport();
}

VB.Net

Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs) Handles MyBase.Load
    Dim dsCustomers As Customers = GetData()
    Dim crystalReport As ReportDocument = New ReportDocument()
    crystalReport.Load(Application.StartupPath.Replace("bin\Debug","") & "AB\CrystalReport\rptStuData.rpt")
    crystalReport.SetDataSource(dsCustomers)
    Me.crystalReportViewer1.DisplayGroupTree = False
    Me.crystalReportViewer1.ReportSource = crystalReport
    Me.crystalReportViewer1.RefreshReport()
End Sub