Question

我对comboBox和ifment有什么问题。在WindowsForm上它正在工作，但在WPF上工作不好; / 当我选择“标准”没有做什么，当我选择“PhoneBinding”lbl和文本框是可见的，而不是隐藏...我做错了什么？

这是代码：

private void cmbProces_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {

        if (cmbProces.Text == "Standard")
        {
            lblUlica.Visibility = Visibility.Visible;
            txtUlicaFormatka.Visibility = Visibility.Visible;

        }
        else if (cmbProces.Text == "Promesa")
        {
            lblUlica.Visibility = Visibility.Visible;
            txtUlicaFormatka.Visibility = Visibility.Visible;
        }
        else if (cmbProces.Text == "PhoneBinding")
        {
            lblUlica.Visibility = Visibility.Hidden;
            txtUlicaFormatka.Visibility = Visibility.Hidden;
        }

    }

我也尝试过类似的东西：

if (cmbProces.SelectedValue == "Standard")
        {
            lblUlica.Visibility = Visibility.Visible;
            txtUlicaFormatka.Visibility = Visibility.Visible;

        }
        else if (cmbProces.SelectedValue == "Promesa")
        {
            lblUlica.Visibility = Visibility.Visible;
            txtUlicaFormatka.Visibility = Visibility.Visible;
        }
        else if (cmbProces.SelectedValue == "PhoneBinding")
        {
            lblUlica.Visibility = Visibility.Hidden;
            txtUlicaFormatka.Visibility = Visibility.Hidden;
        }

    }

但也没有工作......任何人都可以说出错了吗？

Answer 1

我找到了解决方案...... 我在InitializeComponent（）;

之后添加Items

cmbProces.Items.Add("Standard");
cmbProces.Items.Add("Promesa");
cmbProces.Items.Add("PhoneBinding");

并在xaml文件中删除：

<ComboBoxItems>Standard</ComboBoxItems>
<ComboBoxItems>Promesa</ComboBoxItems>
<ComboBoxItems>PhoneBinding</ComboBoxItems>

这对我有用：）

很抱歉，如果我的问题很愚蠢，但我从WPF开始

WPF - 带有IF语句的组合框

1 个答案: