Lendo tabelas DBF's com C#

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Postado por: suhas hegde

Código:

using System;
using System.Data;
using System.Data.OleDb;
using System.Windows.Forms;
using System.Drawing;

class vfpData
{
    static void Main()
    {
        string strConn = @"Provider=VFPOLEDB;Data source=
 C:\Program Files\Microsoft Visual FoxPro 9\Samples\Data;";

        OleDbConnection cn = new OleDbConnection(strConn);
        cn.Open();

        OleDbCommand cmd = new OleDbCommand();
        cmd.CommandType = CommandType.Text;
        cmd.Connection = cn;
        cmd.CommandText = "delete from customer";
        cmd.ExecuteNonQuery();

        OleDbCommand cmd1 = new OleDbCommand();
        cmd1.Connection = cn;
        cmd1.CommandText = "Set Deleted off";
        cmd1.ExecuteNonQuery();
        cmd1.CommandType = CommandType.Text;
        cmd1.CommandText = "select deleted() as isdeleted ,* from customer";

        OleDbCommand cmd2 = new OleDbCommand();
        cmd2.CommandType = CommandType.TableDirect;
        cmd2.Connection = cn;
        cmd2.CommandText = "customer";

        DataTable tbl1 = new DataTable();
        DataTable tbl2 = new DataTable();

        OleDbDataReader rdr1 = cmd1.ExecuteReader();
        tbl1.Load(rdr1);
        OleDbDataReader rdr2 = cmd2.ExecuteReader();
        tbl2.Load(rdr2);
        cn.Close();

        Form f = new ShowDataForm(tbl1, "Select command");
        f.ShowDialog();
        f = new ShowDataForm(tbl2, "Table direct");
        f.ShowDialog();
    }
}

public class ShowDataForm : Form
{
    public ShowDataForm(DataTable tbl, string caption)
    {
        this.dgv = new System.Windows.Forms.DataGridView();
        this.dgv.Location = new System.Drawing.Point(0, 0);
        this.dgv.Dock = DockStyle.Fill;
        this.dgv.DataSource = tbl;
        this.Text = caption + " Records fetched " + tbl.Rows.Count.ToString();
        this.Controls.Add(this.dgv);
        this.ClientSize = new System.Drawing.Size(1024, 768);
    }
    private System.Windows.Forms.DataGridView dgv;
}