“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

Please change your code like below.

  int QuestionID;

  bool IsIntValue = Int32.TryParse("YOUR-VARIABLE", out QuestionID);

  if (IsIntValue)
  {
      // YOUR CODE HERE  
  }

Hope i will be help.