我想用代码中的键/值数据填充一个ComboBox,我有这个:
XAML:
<Window x:Class="TestCombo234.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:TestCombo234"
Title="Window1" Height="300" Width="300">
<Window.Resources>
<ObjectDataProvider x:Key="Choices" ObjectType="{x:Type local:CollectionData}" MethodName="GetChoices"/>
</Window.Resources>
<StackPanel HorizontalAlignment="Left">
<ComboBox ItemsSource="{Binding Source={StaticResource Choices}}"/>
</StackPanel>
</Window>
代码背后:
using System.Windows;
using System.Collections.Generic;
namespace TestCombo234
{
public partial class Window1 : Window
{
public Window1()
{
InitializeComponent();
}
}
public static class CollectionData
{
public static Dictionary<int, string> GetChoices()
{
Dictionary<int, string> choices = new Dictionary<int, string>();
choices.Add(1, "monthly");
choices.Add(2, "quarterly");
choices.Add(3, "biannually");
choices.Add(4, "yearly");
return choices;
}
}
}
但是这给了我这个:
alt text http://img193.imageshack.us/img193/9218/choices.png
我需要更改什么才能使键为int且值为字符串?
答案 0 :(得分:111)
到您的ComboBox添加
SelectedValuePath="Key" DisplayMemberPath="Value"
答案 1 :(得分:4)
有一种更简单的方法。
将枚举转换为Generic.Dictionary对象。例如,假设您想要一个带有工作日的组合框(只需将VB转换为C#)
Dim colWeekdays As New Generic.Dictionary(Of FirstDayOfWeek, String)
For intWeekday As FirstDayOfWeek = vbSunday To vbSaturday
colWeekdays.Add(intWeekday, WeekdayName(intWeekday))
Next
RadComboBox_Weekdays.ItemsSource = colWeekdays
在您的XAML中,您只需将以下内容设置为绑定到对象:
SelectedValue="{Binding Path= StartDayNumberOfWeeek}" SelectedValuePath="Key"
DisplayMemberPath="Value" />
上面的代码很容易通过反射来概括来处理任何枚举。
希望这会有所帮助
答案 2 :(得分:0)
DevExpress 17.1.7 处理此问题的方式是设置以下属性:DisplayMember
和ValueMember
,如果是字典,则可能是这样的:
DisplayMember="Value"
ValueMember="Key"