高分问一道题,请大家都来看一下

Question

什么意思？代码中有四句  MessageBox.Show("成功"); 

Answer 1

this.radioButton4.Text 
换成 radioButton.SelectedItems.Text呢

Answer 2

radioButton是不包含SelectedItems的定义的

Answer 3

楼主你的四段代码可以用下面这一段来代替       private void radioButton1_CheckedChanged(object sender, EventArgs e) 
        { 
            
            //tion = new SqlConnection("server=.;database=ddt;uid=sa;pwd="); 
            sql = "select * from name where name='"+ (sender as RadioButton).Text+"'";             try 
            { 
                tion.Open(); 
                and = new SqlCommand(sql, tion); 
                rd = and.ExecuteReader(); 
                if (rd.Read()) 
                { 
                    MessageBox.Show("成功"); 
                    sum = sum + 25; 
                } 
            } 
            catch (SqlException ex) 
            { 
                MessageBox.Show(ex.Message); 
            } 
            finally { 
                tion.Close(); 
                rd.Close(); 
                and.Dispose(); 
            } 
        }