Remove rows from grid

[Hodaya]

Hi. I am trying to remove rows and I get "formatException".

I've try to remove the rows like that:

grid.GridElement.BeginUpdate();

foreach (GridViewDataRowInfo row in grid.Rows)
{
      if (row.Cells[1].Value.ToString() == "False")
      {
            grid.Rows.Remove(row);
      }
}

grid.GridElement.EndUpdate();

AND like that:

grid.GridElement.BeginUpdate();

IEnumerable<GridViewDataRowInfo> uncheckedRows = grid.Rows.Where<GridViewDataRowInfo>(row => row.Cells[1].Value.ToString() == "False");

foreach (GridViewDataRowInfo uncheckedRow in uncheckedRows)
       grid.Rows.Remove(uncheckedRow);

grid.GridElement.EndUpdate();

BOTH WAYS DON'T  WORK... 

[Dess | Tech Support Engineer, Principal]

Hello, Hodaya,

Thank you for writing.  

Your question has already been answered in the other thread you have posted on the same topic. Please, see our answer there for more information.
We kindly ask you to use just one thread for a specific problem to contact us. Posting the same questions numerous times slows down our response time because we will need to review and address two or more tickets instead of one. Moreover, threads are handled according to license and time of posting, so if it is an urgent problem, we suggest you use a support ticket, which would be handled before a forum thread.

Thank you for your understanding.

Regards,
Dess
Progress Telerik