Need help on GridView Control

Question

i have 2 request for the GridView control. (1) how can i sort a DataView by numbering instead by string? i have bind my data to a DataView and then data bind to a gridview control. But there is a column which is storing numbering data, when i sort it... it is not sort according to numbering method, it sort by string method... eg data: 1, 2.3, 12.2 it will sort as 1, 12.2, 2.3 (2) i need highlight a row when it meet some condition. eg if cellX >100