“Input string was not in a correct format.”

Question

I am working on a project in which I have a form through which I can edit a question available in a list view. Whenever I select a row from the list view and click on the \'

Answer 1

whenever i try to compile the code it says "{"Input string was not in a correct format."}"

This error won't come on compiling.

Now the error comese because you are trying to parse an invalid string to integer. To do it in a safe manner, you should do it like this

int questionID;
if(int.TryParse(vTwoOrMoreOptions.SelectedItems[0].Text.ToString(),out questionID))
{
//success code
}
else
{
 //failure code
}