Question

I have a page where I am dynamically creating an asp.net table. At some point based on user input I need to be able to delete all the rows in the table and recreate them from scratch. When I try to loop through the table rows and remove them one by one I get the following error. “Collection was modified; enumeration operation may not execute. “

Is there another way to do this? This code is the first thing in the function that creates the dynamic rows.

foreach (TableRow tr in ChecklistQuestionTable.Rows)
        {
            ChecklistQuestionTable.Rows.Remove(tr);
        }

Answer 1

ChecklistQuestionTable.Rows.Clear();

See HtmlTableRowCollection.Clear on MSDN.

Use this method to remove all HtmlTableRow objects from the HtmlTableRowCollection collection and reset the Count property to 0.