Tersus: Select all rows by columns - issue with performance with many rows

Select all rows by columns - issue with performance with many rowsDate: Sep 21, 2012hi,My application is trying to do a select all rows within a column in a table
by checking on top of the column. Example - Reference to image attached, i would be able to select all rows
of users within Allow Add File by checking on checkbox under Allow Add To All.The issue i have is with performance. Currently i have about 40 users and
the checking of each checkbox within a column row by row after i check
the checkbox at top of column takes quite sometime. It takes even much much
longer is i were to check for two or more columns.Was wondering if there is anything i can do or code in some way to improve the
performance.

Thanks for advice in advance.Cliff Select All Rows By Column