使用Dictionary <String,String>在C#中填充WPF DataGrid

Question

我想用Dictonary在C#中填充我的DataGrid.我已经将Dictionary设置为DataGrid的ItemsSource.但是没有显示数据......我还将AutoGenerateColumns设置为true.哪里出错了？提前致谢

Answer 1

尝试明确指定列:

<DataGrid.Columns>
    <DataGridTextColumn Header="Key" Binding="{Binding Key}" />
    <DataGridTextColumn Header="Value" Binding="{Binding Value}" />
</DataGrid.Columns>

Answer 2

以下适用于我.您不需要显式设置列.

XAML

<Window x:Class="DictionaryDataGridDemo.SingleDictView"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:DictionaryDataGridDemo"
        Title="SingleDictView"
        Width="525"
        Height="350">
    <Window.DataContext>
        <local:SingleDictViewModel />
    </Window.DataContext>
    <Grid>
        <DataGrid HorizontalAlignment="Stretch"
                  VerticalAlignment="Stretch"
                  AutoGenerateColumns="True"
                  ItemsSource="{Binding MyDictionary}">
            <!--<DataGrid.Columns>
                <DataGridTextColumn Header="Key" Binding="{Binding Key}" />
                <DataGridTextColumn Header="Value" Binding="{Binding Value}" />
            </DataGrid.Columns>-->
        </DataGrid>
    </Grid>
</Window>

视图模型

using System.Collections.Generic;

namespace DictionaryDataGridDemo
{
    public class SingleDictViewModel
    {
        public Dictionary<double, string> MyDictionary { get; set; }

        public SingleDictViewModel()
        {
            MyDictionary = new Dictionary<double, string>();
            MyDictionary.Add(100, "A100");
            MyDictionary.Add(200, "B200");
            MyDictionary.Add(300, "C300");
        }
    }
}