display image in webform

[iramg]

i have a form in which i put a fileupload control to upload a file and actually save its path in data base. now i actually want that when i upload a image that should also display on the form how can i do it and how i can display a image at runtime after getting its path. and another question is how i can access a cs file variable in my aspx file. like if a image url and i want to set it as a src value of image how can i do it like in my cs file i have declare a variable string myim; and in aspx file how i will access it thanks in advance