c# WPF to display images using relative path i DataGrid

Question

I am selecting Images from database ....using binding but problem is that only those images are displaying which are saved with full path like C://Images/123.png......only other hand some of my images are saved like 123.png and i have thses images saved in my bin>Images folder.....how can i give relative path ...and remember i am using dataGrid to display WPF