Question

我希望我的while循环使用一个消息框最多问5次问题。

当我运行它时，我会问一次，当我选择“是”时，会打开5个新表格。

如何修复此循环，以防止消息框询问用户是或不超过5次，以及如何防止在我选择一次后打开5个表单？

我的代码

 private void btnNext_Click(object sender, EventArgs e)
    {
        int maxAddDriver = 5;
        int addDriver = 0;

        DialogResult answer = MessageBox.Show("Would you like to add an additional driver to policy?", "Info", MessageBoxButtons.YesNo, MessageBoxIcon.Information);

        Hide();

        while (addDriver < maxAddDriver && answer == DialogResult.Yes)
        {
            addDriver++;

            Hide();

            new frmAdditionalDriver().Show();


            //answer = MessageBox.Show("Would you like to add an additional driver to policy?",
            //    "Info", MessageBoxButtons.YesNo, MessageBoxIcon.Information);
        }


        new frmInsurancePolicy().ShowDialog();

        Show();
    }

Answer 1

请尝试以下操作：将maxAddDriver和addDriver移到按钮单击之外，这样就不会在每次单击按钮时重置它们，并保留以前的单击计数。

int maxAddDriver = 5;
int addDriver = 0;

private void btnNext_Click(object sender, EventArgs e)
    {
        // already displayed message box 5 times, so just display insurance policy dialog
        if (this.addDriver == this.maxAddDriver)
        {
            new frmInsurancePolicy().ShowDialog();
        }

        var answer = MessageBox.Show("Would you like to add an additional driver to policy?", "Info",
            MessageBoxButtons.YesNo, MessageBoxIcon.Information);
        Hide();
        this.addDriver++;

        if (answer == DialogResult.Yes && this.addDriver < this.maxAddDriver)
        {
            new frmAdditionalDriver().Show();
        }
        Show();
    }

有没有一种方法可以显示最多5次的消息框？

1 个答案: