DataGridView vertical scrollbar not updating properly (Forms bug?)

Question

I\'ve encountered a bug (I assume) in .NET 3.5. When adding rows to a DataGridView using Rows.Add(), while the DGV is disabled, the vertical scrollbar doesn\'t update proper

Answer 1

For me the problem was that I put my datagrid in a TabPage which was not displayed during data generation time so the srolling was messed up.

I found a was to make a correct update just by auto diable/enable at each visible change :

public MyForm()
{
    InitializeComponent();

    // Automatic scroll to bottom (it might not work if you try to do it without this event)
    datagrid.RowsAdded += (sender, e) =>
    {
        datagrid.FirstDisplayedScrollingRowIndex = datagrid.RowCount - 1;
    };

    // WinForms bug fix: scrollbar update
    datagrid.VisibleChanged += (sender, e) =>
    {
        Enabled = false;
        Enabled = true;
    };
}