Is it possible to manually add a line of text to a validation summary control? Something like a listbox maybe where you can dynamically add to it?
Heres the situation if you want more info:
I have a simple form with 2 textboxes and a series of radioboxes. I have the radioboxes linked together using group name.
I dont use a radioButtonList as I want them to enter additonal information for one of the radio buttons when they select it.
The problem is I cannot use a standard required field validtor of this group of radio buttons like I would with a normal radio button list.
So when they click the submit button I currently have to make my own error message appear separately but the validation summary also appears if the user hasnt filled in other fields.