Which element caused postback?
I am currently creating a .ascx file to make my own user control which will display images and works something like a dropdownlist. When user select the image, the selected image will be selected just like the dropdownlist. I will create the <input type="image"> for each image file in the specified folder. Which makes my user control dynamic.
I have 2 labels called: lblAll and lblDisplay. lblDisplay: Shows the selected image and lblAll: shows the rest of the remaining images. The <input type="image"> will be placed inside the lblAll and lblDisplay. I have used the <div> tags to expand and collaspe the labels accordingly.
The reason i decided to use <input type="image"> is because i would like a postback so that i can update the newly selected image.
My problem: How am i supposed to know which <input type="image"> was clicked/selected during postback? Thanks