sapbusinessobjects wpf.viewer.... .

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C#

hi all

I'm using following code to bind crystal report to crystal report viewer in WPF

DSReport ds1 = new DSReport();
DataTable dataTable = ds1.DataTable1;

DataRow row = ds1.DataTable1.NewDataTable1Row();
row["Name"] = txtName.Text;
row["Address"] = txtAddress.Text;
row["CardNo"] = CardNo;
row["Phone"] = txtPhone.Text;
row["Signature"] = CoustomarSighn;

row["LibName"] = LibName;
row["LibAddress"] = LibAddress;
row["LibSignature"] = UserSighn;

ds1.DataTable1.Rows.Add(row);
//  rpt.SetDataSource(ds1);
         
Card rpt = new Card();   
rpt.Database.Tables["DataTable1"].SetDataSource((DataTable)dataTable);
rpt.SetDataSource(ds1);

RptViewCard.ViewerCore.ReportSource = rpt;

I'm getting the result only one time
if click to view another report geting an exception

"sapbusinessobjects.wpf.viewer.pdb not loaded"

rerun the code then it wors only time
please help me to solve the problem

Code block and tabluation