C#

SqlConnection conn = new SqlConnection("Data Source=localhost;Initial Catalog=JWDTA016;Integrated Security=True");
DataAdaptater.SelectCommand = new SqlCommand(QueryString, conn);

//I try to create mapping
DataTableMapping mapping = DataAdaptater.TableMappings.Add("Table", "dt");
mapping.ColumnMappings.Add("IXROOT", "Client root");
mapping.ColumnMappings.Add("IXADID", "Addres id");
mapping.ColumnMappings.Add("IXPATH", "PDF Path");
mapping.ColumnMappings.Add("IXID", "Document id");
mapping.ColumnMappings.Add("IXESEQ", "Extraction sequence");
mapping.ColumnMappings.Add("ISSTAT", "Status");
mapping.ColumnMappings.Add("DIFREQ", "Sending frequence");
mapping.ColumnMappings.Add("IXPID", "Production id"); 
  
//But when I display the ds into my datagrid, it can just display all my dataquery result and not only the colums i want to map         
DataAdaptater.Fill(dt);
Ultragrid.DataSource = dataGridData.Tables[0].DefaultView;
Ultragrid.DataBind();

PrintDocument pd = new PrintDocument();

pd.DocumentName = "My document";
pd.PrintController = new StandardPrintController();
pd.BeginPrint += new PrintEventHandler(OnBeginPrint);
pd.PrintPage += new PrintPageEventHandler(onPrintPage);
pd.EndPrint += new PrintEventHandler(OnEndPrint);
pd.Print();
pd.Dispose();

this.maskedTextBox1 = new System.Windows.Forms.MaskedTextBox() {
   protected override bool IsInputKey(Keys AKeyData) {...}
};