In some case, one column sorting may not display the data trend and changing clearly. So Kettic Grid view control allows users to make multi-column sorting at same time. Set AllowMultiColumnSorting property to True, and the other settings is just as the same as the one column sorting.
To sort data in single column, you can click a column header to change the column sort order(ascending, descending or no sort). The sort status will display on the right of this column header.
To sort data against multiple columns, pressing down the SHIFT key, and click the required column headers.
Besides the mulit-column sorting in this online demo, Kettic ASP.NET AJAX grid control provide single column sorting, too.
And there are many other operation can be done in grid, such as: grouping grid data in asp.net and reordering grid data in asp.net.