Hi TAQI,
You can achieve this by using GridFindReplaceDialogSink class, which has a find method to search through the grid content. In the GridFindReplaceDialogSink.Find method, you can pass in an option to search the current column - GridFindTextOptions.ColumnOnly. If you want to search multiple columns, then you need to move the currentcell to other columns programatically and call the Find method again.
Please refer this forum thread for more details:
http://www.syncfusion.com/support/forums/message.aspx?MessageID=37360Kindly let us know if you need any further assistance.
Best Regards,
Jeba.