public RowInsertCounter(ProgressBarForm form)
{
this.form = form;
}
private void AddRows(int from, int to)
{
var operation = new InsertRowsOperation(this, from, to);
var form = new ProgressBarForm();
var insert = new RowInsertCounter(form);
operation.Progress += insert.Add;
operation.Cancelled += delegate { InvalidateGrid(); };
operation.Completed += delegate { InvalidateGrid(); };
operation.Failed += delegate { InvalidateGrid(); };
new ExecuteWithProgressBar(operation, form).Run();
}