Peter King
Member
- Joined
- Sep 11, 2006
- Messages
- 15
- Programming Experience
- Beginner
Hi, there,
I have a DataGridView with data source from a DataTable. The DataTable is generated from a text file (not bound to any database), and contains roughly 500000 rows.
I want the user to select some rows, and delete those selected rows by clicking a button. The problem is that if the user select many rows to delete, it takes ages (say, 10 minutes) to complete the delete action. I use the following code.
Dim deleteRows As DataGridViewSelectedRowCollection = _
DataGridView1.SelectedRows
Dim row As DataGridViewRow
For Each row In deleteRows
DataGridView1.Rows.Remove(row)
Next
I cannot figure out a more efficient method to do the deletion.
Can anyone help?
Thanks a lot!
P
I have a DataGridView with data source from a DataTable. The DataTable is generated from a text file (not bound to any database), and contains roughly 500000 rows.
I want the user to select some rows, and delete those selected rows by clicking a button. The problem is that if the user select many rows to delete, it takes ages (say, 10 minutes) to complete the delete action. I use the following code.
Dim deleteRows As DataGridViewSelectedRowCollection = _
DataGridView1.SelectedRows
Dim row As DataGridViewRow
For Each row In deleteRows
DataGridView1.Rows.Remove(row)
Next
I cannot figure out a more efficient method to do the deletion.
Can anyone help?
Thanks a lot!
P
