C＃如何使用MessageBoxButtons / Icons修复此错误错误

Question

设计注册表单，我在MessageBoxButtons和MessageBoxIcon中添加时出现此错误。错误是“参数2：无法将'system.windows.forms.Messageboxicon'转换为'string'。错误所在的代码片段是：**

MessageBox.Show（“您已成功注册您的帐户”，MessageBoxIcon.Exclamation，MessageBoxButtons.OK）;

**和这里一样：

MessageBox.Show（“请正确填写所有框”，MessageBoxIcon.Exclamation，MessageBoxButtons.OK）;

当我删除Messageboxbutton /图标时，没有错误。这是我得到的：

        {
        MyConnections.insert.CommandText = "INSERT Customer(EmailAddress,Firstname,Surname,Password)VALUES('" + txtEmail.Text + "','" + txtFirst.Text + "','" + txtSur.Text + "','" + txtPassword.Text + "')";
        MyConnections.insert.Connection = MyConnections.Customer;
        MyConnections.Customer.Open();
        MyConnections.insert.ExecuteNonQuery();
        MyConnections.Customer.Close();

        if (txtFirst.Text.Length > 0 && txtSur.Text.Length > 0 && txtEmail.Text.Length > 0 && txtPassword.Text.Length > 0 && txtConfirmPass.Text.Length > 0)


        {
            MessageBox.Show("You have successfully registered your account", MessageBoxIcon.Exclamation, MessageBoxButtons.OK);


        }

        else
        {
            MessageBox.Show("Please fill in all of the boxes correctly", MessageBoxIcon.Exclamation, MessageBoxButtons.OK);


        }

Answer 1

在这里你确实有正确的顺序，你忘了添加标题

MessageBox.Show("You have successfully registered your account","Your caption goes here", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);

希望这可以帮助。