ขอโค้ด Back Up ข้อมูลหน่อยนะค่ะท่านผู้รู้ทั้งหลายกำลังทำโปรเจคจบค่ะ

public static void WriteDataToFile(DataTable submittedDataTable, string submittedFilePath)
        {
            int i = 0;
            StreamWriter sw = null;
 
            sw = new StreamWriter(submittedFilePath, false);
 
            for (i = 0; i < submittedDataTable.Columns.Count - 1; i++)
            {
 
                sw.Write(submittedDataTable.Columns[i].ColumnName + ";");
 
            }
            sw.Write(submittedDataTable.Columns[i].ColumnName);
            sw.WriteLine();
 
            foreach (DataRow row in submittedDataTable.Rows)
            {
                object[] array = row.ItemArray;
 
                for (i = 0; i < array.Length - 1; i++)
                {
                    sw.Write(array[i].ToString() + ";");
                }
                sw.Write(array[i].ToString());
                sw.WriteLine();
 
            }
 
            sw.Close();
}

WriteDataToFile(dt,"/path/thaicreate.txt");

Public Shared  Sub WriteDataToFile(ByVal submittedDataTable As DataTable, ByVal submittedFilePath As String)
            Dim i As Integer =  0 
            Dim sw As StreamWriter =  Nothing 
 
            sw = New StreamWriter(submittedFilePath, False)
 
            For i = 0 To  submittedDataTable.Columns.Count - 1- 1  Step  i + 1
 
                sw.Write(submittedDataTable.Columns(i).ColumnName + ";")
 
            Next
            sw.Write(submittedDataTable.Columns(i).ColumnName)
            sw.WriteLine()
 
            Dim row As DataRow
            For Each row In submittedDataTable.Rows
                Dim array() As Object =  row.ItemArray 
 
                For i = 0 To  array.Length - 1- 1  Step  i + 1
                    sw.Write(array(i).ToString() + ";")
                Next
                sw.Write(array(i).ToString())
                sw.WriteLine()
 
            Next
 
            sw.Close()
End Sub
 
WriteDataToFile(dt,"/path/thaicreate.txt")