I have a small program that helps me to import excel sheets to a Datagridview to later export it to a text file but the problem is that the text file is overwritten. I would like that every time you export the contents of datagridview a new file is created with a different name to avoid overwriting it . I would be very grateful for his help. I use the following code in a button to export the datagrid to text file:
If DataGridView1.RowCount = 0 Then
MessageBox.Show("the datagridview is emptly")
Else
If Directory.Exists("C:\Foldertxt") = False Then
Directory.CreateDirectory("C:\Foldertxt")
End If
Dim sFile As String = "C:\Foldertxt\file.txt"
If File.Exists(sFile) = True Then
My.Computer.FileSystem.DeleteFile(sFile, FileIO.UIOption.OnlyErrorDialogs, _
FileIO.RecycleOption.DeletePermanently, FileIO.UICancelOption.DoNothing)
End If
Using f As New IO.StreamWriter(sFile, True)
Dim col As String = ""
Dim row As String = ""
Dim i As Integer = 0
For Each r As DataGridViewRow In DataGridView1.Rows
For Each c As DataGridViewColumn In DataGridView1.Columns
row = row & "'" & Convert.ToString(r.Cells(c.HeaderText).Value) & "' "
Next
If i < DataGridView1.Rows.Count - 1 Then row &= Environment.NewLine
Next
f.WriteLine(row)
MessageBox.Show("file created")
End Using
End IfI use Visual Studio 2013
Thank so much and sorry for my english
Loading
Farhan ShariffPosted Mar 13, 2015, 2:15 PM
Dim count As Integer = 1
Dim fileNameOnly As String = Path.GetFileNameWithoutExtension(fullPath)
Dim extension As String = Path.GetExtension(fullPath)
Dim path__1 As String = Path.GetDirectoryName(fullPath)
Dim newFullPath As String = fullPath
While File.Exists(newFullPath)
Dim tempFileName As String = String.Format("{0}({1})", fileNameOnly, System.Math.Max(System.Threading.Interlocked.Increment(count),count - 1))
newFullPath = Path.Combine(path__1, tempFileName & extension)
End While
Rosa VilaPosted Mar 13, 2015, 5:14 PM
If DataGridView1.RowCount = 0 Then
MessageBox.Show("the datagridview is emptly")
Else
If Directory.Exists("C:\Foldertxt") = False Then
Directory.CreateDirectory("C:\Foldertxt")
End If
Dim sFile As String = "C:\Foldertxt\file.txt"
Dim count As Integer = 1
Dim fileNameOnly As String = Path.GetFileNameWithoutExtension(sFile)
Dim extension As String = Path.GetExtension(sFile)
Dim path__1 As String = Path.GetDirectoryName(sFile)
Dim newFullPath As String = sFile
While File.Exists(newFullPath)
Dim tempFileName As String = String.Format("{0}({1})", fileNameOnly, System.Math.Max(System.Threading.Interlocked.Increment(count),count - 1))
newFullPath = Path.Combine(path__1, tempFileName & extension)
End While
Using f As New IO.StreamWriter(newFullPath, True)
Dim col As String = ""
Dim row As String = ""
Dim i As Integer = 0
For Each r As DataGridViewRow In DataGridView1.Rows
For Each c As DataGridViewColumn In DataGridView1.Columns
row = row & "'" & Convert.ToString(r.Cells(c.HeaderText).Value) & "' "
Next
If i < DataGridView1.Rows.Count - 1 Then row &= Environment.NewLine
Next
f.WriteLine(row)
MessageBox.Show("file created")
End Using
End If