如何检索ComboBox选择的值作为枚举类型？ [英] How to retrieve ComboBox selected value as enum type?

问题描述

这是我的枚举代码：

public enum EmployeeType
{
    Manager,
    Worker
}

我将初始化 ComboBox 值，而窗体将其本身初始化为

I will initialize ComboBox values while form initialize itself as

 combobox1.ItemsSource = Enum.GetValues(typeof(EmployeeType));

现在我想检索所选值 ComboBox as EmployeeType 枚举，不是字符串或整数等。

Now I want to retrieve the selected value of ComboBox as EmployeeType enum, not as string or integer, etc.

任何帮助都不胜感激。 >

Any help is appreciated.

推荐答案

EmployeeType selected = (EmployeeType)combobox1.SelectedItem;

您可能希望首先检查null（不选择）。

You might want to check for null (no selection) first though.

为了完整，这里是我设置的示例程序。 XAML：

For completeness, here was the sample program I set up. The XAML:

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition />
            <RowDefinition />
        </Grid.RowDefinitions>
        <ComboBox x:Name="_ComboBox" />
        <Button Grid.Row="1" Click="Button_Click" />
    </Grid>
</Window>

和代码隐藏：

using System;
using System.Windows;

namespace WpfApplication1
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            _ComboBox.ItemsSource = Enum.GetValues(typeof(Whatever));
        }

        public enum Whatever
        {
            One,
            Two,
            Three,
            Four
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            if (_ComboBox.SelectedItem == null)
            {
                MessageBox.Show("No Selection");
            }
            else
            {
                Whatever whatever = (Whatever)_ComboBox.SelectedItem;
                MessageBox.Show(whatever.ToString());
            }
        }
    }
}

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