XtraReport three dynamic data binding

The code also uses the previous section to remove the Datasource of the Report. Each bound field is also removed. With the foundation of the second section, it is not difficult to see this now. It is nothing more than passing a data set to the report, and binding this data set to each control to clear the Cell in the details. value, each cell is changed to the name of the corresponding column in the database for easy binding

The XReport code is as follows, the function is to bind the data

　　

 public partial class XtraReport3 : DevExpress.XtraReports.UI.XtraReport
    {
        public XtraReport3()
        {
            InitializeComponent();
        }
        // Refactor a constructor   
        public XtraReport3(DataTable dt)
        {

            InitializeComponent();
            // The data source of the report comes from the database table 
            this .DataSource = dt;
             // lebel binds the ID in the database text 
            this .xrLabel1.DataBindings.Add( " text " ,dt, " id " );
             this .xrTableCell1.DataBindings. Add( " text " ,dt, " id " );
        
        }
    }
}

Form1 code is as follows

  private void button1_Click(object sender, EventArgs e)
        {
           

            string constr = "serer=192.168.100.222;uid=sa;pwd=Metel@1989;database=text";
            SqlConnection con = new SqlConnection(constr);
            try
            {
                con.Open();
                SqlDataAdapter da = new SqlDataAdapter("select * from book", con);
                DataTable dt = new System.Data.DataTable();
                da.Fill(dt);
                XtraReport3 report = new XtraReport3(dt);
                report.Landscape = false;
                documentViewer1.DocumentSource = report;
                report.CreateDocument();


            }
            catch (Exception)
            {

                throw;
            }
            finally { con.Close(); }
        }