C＃表单应用程序int到字符串错误

Question

I am really stuck on this one - I am trying to create an if statement and display the value assigned to the variable in a text box. I keep coming across a "Cannot implicity convert int to string" building error. Thanks.

        int n1;
        int userInput = int.Parse(textBox1.Text);
        if (userInput == 4)
        {
            n1 = 60;

        }
        else if (userInput ==3)
       { 
             n1=40
       }


        {
        textBox2.Text = (n1); //"Cannot implicity convert int to string" 
        }

Answer 1

You have declared n1 as int . The Text property of textBox2 is of type string . So you first have to convert n1 to string before you can assign it to the Text .

textBox2.Text = n1.ToString();

Answer 2

该错误是不言自明的-编译器无法自动将整数转换为字符串：

textBox2.Text = n1.ToString();

Answer 3

使用方法ToString()

textBox2.Text = n1.ToString();

Answer 4

You have to convert int to string

textBox2.Text=n1.TOString();

or

textBox2.Text=Convert.ToString(n1);