Question

My current code:

Remove()
{
    for (int i = 0; i < ConGridView.RowCount; i++)
    {
        if (ConGridView.Rows[i].Cells[0].Value.ToString() == Address)
        {
            ConGridView.Rows.RemoveAt(i);
            break;
        }
    }
}

So what I am trying to call the remove function every time a client disconnect. the function will remove the connection address from the datagridview. It works well when clients are disconnection one by one. However, if 100 connections gets dropped and it tries to remove 100 connections in less than a second, than it errors out saying “Row Index provided is out of range”. How should I check for that ?

So far I’ve tried:
Try, catch.
if (ConGridView.Rows[i] != null), if (i < ConGridView.RowCount)
None of it seem to work so far. I’ve also got results using (i < ConGridView.RowCount) where i is 26 while RowCount is 24, but the remove at function still activates..

Any idea on this ?

Answer 1

I’ve tried all the suggestions posted by everyone here, however, the error was still there.

I’ve solved the problem using a different way… I’ve switched to TreeNodeView since that’s what I was going to use ultimately. Now I can remove as many connection as i want with:

For each(TreeNode TN in ConTreeView) 
{ 
   ConTreeView.Nodes.Remove(TN); 
}