mardi 21 juin 2016

how to highlight a gridview row based on mouse hover location over an image?


I have a GridView that I bind in PageLoad() and I use the same data to dynamically create a timeline image that displays below the GridView. If I get 15 rows of data (pretty typical) each row in the GridView from top to bottom will have a corresponding vertical line drawn in the timeline jpg from left to right. The graph just shows how close or far apart each event is from its neighbors.

I do draw an id below each line in the image to help identify the corresponding row in the GridView but it's tedious to locate. It would be awesome if I could just move the mouse across the timeline image and have the corresponding rows in the GridView get highlighted as I go. I know the x-coordinates of each line because I generate the image from the same data using Bitmap, Graphics, DrawLine, etc. to make and save the jpg.

Any help greatly appreciated.

asp.net 2.0, vs2010, c#.


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