Question

I have a DataGridView with a single column that currently displays a short list of items. When the user clicks a button to run an update, each row/cell is read and processing begins.

I would like to have the selection indicator move down the rows in the DataGridView as it completes processing of each record. How can I display the iteration of the DataGridView rows while the processing is underway? A redraw of the DataGridView or something.

This is a VB.net windows form, I know how to do this with AJAX I think, but how can I achieve this in a Windows form?

Thanks,

Answer 1

For each row As DataGridViewRow in myDataGridView.Rows

    'Unselect previous row, then select current row
    myDataGridView.ClearSelection()
    row.Selected = True
    myDataGridView.Refresh()

    'Do processing here...
Next

This will select each row but won’t scroll down if the current row is out of view. To scroll down automatically you can set the DataGridView FirstDisplayedScrollingRowIndex property.