Question

I have a grid that returns 8000 results, and I would like to filter these results by date and store them into a new datatable and rebind later. I receive this error:

Input array is longer than the number of columns in this table.

What are my options?

if (e.CommandName == "Filter")
{
    DataTable dt = new DataTable();

    foreach (GridDataItem item in RadGrid2.Items)
    {
        for (int i = 0; i < RadGrid2.Items.Count; i++ )
        {
            dt.Rows.Add(item);
        }
    }

Answer 1

if (e.CommandName == "Filter")
     {
        DataTable dt = new DataTable();
        td.Columns.Add("Column1");
        td.Columns.Add("Column2");
        //etc.
        //add same columns as you have in RadGrid2

        foreach (GridDataItem item in RadGrid2.Items)
        {

            for (int i = 0; i < RadGrid2.Items.Count; i++ )
            {

                dt.Rows.Add(item);
            }
        }

You have to add columns to your DataTable td. Items cannot be added to nowhere.