DataGrid和DataGridComboBoxColumn数据绑定

MainWindow.xaml文件

<Window x:Class="WpfApp20140821.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:WpfApp20140821"
        xmlns:system="clr-namespace:System;assembly=mscorlib"
        Title="MainWindow" Height="350" Width="525" x:Name="hostCtrl">
    <Grid>
        <TabControl>
            <TabItem Header="tabItem1">
                <DataGrid x:Name="dataGrid1" AutoGenerateColumns="False">
                    <DataGrid.Columns>
                        <DataGridTextColumn Width="40" Header="案例编号" Binding="{Binding Path=Id}"/>
                        <DataGridTextColumn Width="100" Header="案卷编号" Binding="{Binding Path=RollID}"/>
                        <DataGridComboBoxColumn Width="60" Header="行政区划"
                                                ItemsSource="{x:Static local:MainWindow.SelectionList}">
                            <!--<DataGridComboBoxColumn.ElementStyle>
                                <Style TargetType="ComboBox">
                                    <Setter Property="ItemsSource" Value="{Binding Path=SelectionList,ElementName=this}"/>
                                    <Setter Property="SelectedValue" Value="{Binding Path=SelectedValue}"/>
                                </Style>
                            </DataGridComboBoxColumn.ElementStyle>-->
                        </DataGridComboBoxColumn>
                    </DataGrid.Columns>              
                </DataGrid>
            </TabItem>
            <TabItem Header="tabItem2" HorizontalAlignment="Right">           
            </TabItem>
        </TabControl>
    </Grid>
    <Window.Resources>
        <!--<ObjectDataProvider x:Key="SelectionList" MethodName="GetValues"  ObjectType="{x:Type local:MainWindow}">
            <ObjectDataProvider.MethodParameters>
                <system:String>string1</system:String>
                <system:String>string2</system:String>
            </ObjectDataProvider.MethodParameters>     
        </ObjectDataProvider>-->
    </Window.Resources>
</Window>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

using System.Data;
using System.Data.SqlClient;
using System.Collections.ObjectModel;

namespace WpfApp20140821
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        static ObservableCollection<string> selectionList = new ObservableCollection<string>();
        public static ObservableCollection<string> SelectionList
        {
            get { return selectionList; }
            set { selectionList = value; }
        }
        private string GetValues(string str1,string str2)
        {
            return str1 + str2;
        }
        public MainWindow()
        {
            InitializeComponent();
            string strSql = "select * from SP_CaseInfoMGT";
            DataTable dt = SqlHelp.QueryDT(strSql);
            this.dataGrid1.ItemsSource = dt.AsDataView();

            for (int i = 0; i < dt.Rows.Count; i++)
            {
                selectionList.Add(dt.Rows[i]["District"].ToString());
            }
        }
    }
}

存在问题：ComboBox的SelectedValue的设置问题

转载：http://blog.csdn.net/foreverling/article/details/38759957