DataGridView to CSV File

Question

I have a VB 2010 Express Project, that has a DataGridView in it, that I am trying to write to a CSV file.

I have the write all working. But its slow. Slow = maybe

Answer 1

Don't you just love it when you spend hours searching, then post a question, and a few minutes later find the answer yourself?

This did the trick for me:

Dim headers = (From header As DataGridViewColumn In DataGridView1.Columns.Cast(Of DataGridViewColumn)() _
              Select header.HeaderText).ToArray
Dim rows = From row As DataGridViewRow In DataGridView1.Rows.Cast(Of DataGridViewRow)() _
           Where Not row.IsNewRow _
           Select Array.ConvertAll(row.Cells.Cast(Of DataGridViewCell).ToArray, Function(c) If(c.Value IsNot Nothing, c.Value.ToString, ""))
Using sw As New IO.StreamWriter("csv.txt")
    sw.WriteLine(String.Join(",", headers))
    For Each r In rows
        sw.WriteLine(String.Join(",", r))
    Next
End Using
Process.Start("csv.txt")