在asp.net中如何在网格上填充数据？

When there are lots of data to display on grid from database then the loading time might become an issue. For sometimes user might want to ABORT the data filling. I am using RadGrid and want to handle this scenario using a button. When the button is pressed the data filling will be aborted.I am using Ajax for filling the data into the grid. Can you please suggest me something to achieve this behavior ?When there are lots of data to display on grid