Skip question (without any selection) in making Quiz application in C# in ASP.Net

Hi Firuz,

C#

 QuestionIndex++;
    GetCurrentQuestion(QuestionIndex, DataTableQuestions, int.Parse(rbtnOptions.SelectedItem.Value));

Replace code

C#

 QuestionIndex++;
        if (rbtnOptions.SelectedValue == "")
        {
            GetCurrentQuestion(QuestionIndex, DataTableQuestions, QuestionIndex);
        }
        else
        {
            GetCurrentQuestion(QuestionIndex, DataTableQuestions, Convert.ToInt32(rbtnOptions.SelectedValue));
        }

Screenshot

I hope works for you.