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| using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Data.SqlClient;
using System.Windows.Documents;
using System.Windows.Controls;
using ADOX;
namespace Import
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
public static string SelectedTable = string.Empty;
private void button1_Click_1(object sender, EventArgs e)
{
OpenFileDialog fdlg = new OpenFileDialog();
fdlg.Title = "Select file";
fdlg.InitialDirectory = @"c:\";
fdlg.FileName = txtFileName.Text;
fdlg.Filter = "Text and CSV Files(*.txt, *.csv)|*.txt;*.csv|Text Files(*.txt)|*.txt|CSV Files(*.csv)|*.csv|All Files(*.*)|*.*";
fdlg.FilterIndex = 1;
fdlg.RestoreDirectory = true;
if (fdlg.ShowDialog() == DialogResult.OK)
{
txtFileName.Text = fdlg.FileName;
Import();
Application.DoEvents();
}
}
private void Import()
{
if (txtFileName.Text.Trim() != string.Empty)
{
try
{
DataTable dt = GetDataTable(txtFileName.Text);
dataGridView1.DataSource = dt.DefaultView;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString());
}
}
}
public static DataTable GetDataTable(string strFileName)
{
ADODB.Connection oConn = new ADODB.Connection();
oConn.Open("Provider=Microsoft.Jet.OleDb.4.0; Data Source = " + System.IO.Path.GetDirectoryName(strFileName) + "; Extended Properties = \"Text;HDR=YES;FMT=Delimited\";", "", "", 0);
string strQuery = "SELECT * FROM [" + System.IO.Path.GetFileName(strFileName) + "]";
ADODB.Recordset rs = new ADODB.Recordset();
System.Data.OleDb.OleDbDataAdapter adapter = new System.Data.OleDb.OleDbDataAdapter();
DataTable dt = new DataTable();
rs.Open(strQuery, "Provider=Microsoft.Jet.OleDb.4.0; Data Source = " + System.IO.Path.GetDirectoryName(strFileName) + "; Extended Properties = \"Text;HDR=YES;FMT=Delimited\";",
ADODB.CursorTypeEnum.adOpenForwardOnly, ADODB.LockTypeEnum.adLockReadOnly, 1);
adapter.Fill(dt, rs);
return dt;
}
private void Form1_Load(object sender, EventArgs e)
{
}
}
} |
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