I have created custom module , which has data grid .

I have added this module in DNN site .

when I add this module to page it show only 2 rows in grid.

how to resize gid and how to show scrollbars to grid.

when we add module to page it take fixed height ,how to change the height of module added to page.

there's nothing magical about it being a DotNetNuke module, it's still an ascx file, it's still a grid control, so set the grid properties like height and scrollbars, etc. in your DataGrid tag in your ascx file the same way you would in any user control. If your DataGrid is inside a PlaceHolder control, set the width and height of the PlaceHolder control to 100%