如何给WPF中的DataGrid的ComBox编辑列添加数据

Answer 1

帮助别人就是帮助自己！ 如果这里解决了您的问题，请您点一下推荐 × WPF项目中现有一个DataGrid，其中有一个名为“姓名”的模板列和名为“工号”的文本列，模板列在编辑时是一个ComBox，要实现的功能：ComBox的选项是从数据查询得到的姓名列表（如人员表中性别为女的人的姓名列表），选择其中的某个姓名，TextBlock显示选择的该姓名，“工号”列显示该姓名的工号，如何实现数据的绑定及将记录保存到数据库中<DataGrid AutoGenerateColumns="False" Height="200" HorizontalAlignment="Left" Margin="12,200,0,130" Name="dataGrid1" ItemsSource="{Binding}" Width="613">�0�2<DataGrid.Columns>�0�2<DataGridTemplateColumn x:Name="selectxmCol" Header="姓名" Width="100">�0�2<DataGridTemplateColumn.CellTemplate>�0�2<DataTemplate>�0�2<TextBlock Name="selectXm" Text="{Binding Path=xm}" ></TextBlock>�0�2</DataTemplate>�0�2</DataGridTemplateColumn.CellTemplate>�0�2<DataGridTemplateColumn.CellEditingTemplate>�0�2<DataTemplate>�0�2<Grid Name="selectxmGrid" FocusManager.FocusedElement="{Binding ElementName=xmComb}">�0�2<ComboBox Name="xmComb" DisplayMemberPath="xm" SelectedValuePath="gh" IsEditable="True" IsSynchronizedWithCurrentItem="True"></ComboBox>�0�2</Grid>�0�2</DataTemplate>�0�2</DataGridTemplateColumn.CellEditingTemplate>�0�2�0�2</DataGridTemplateColumn> �0�2�0�2<DataGridTextColumn Header="工号" Binding="{Binding Path=gh}" Width="100"/>�0�2</DataGrid.Columns>例如：Datatable data=new Datatable();首先你需要给你的Combox绑定待选的数据HTML code<DataGrid x:Name="gridEmployers" AutoGenerateColumns="False" ItemsSource="{Binding}" DataContext="{Binding}"><DataGridTemplateColumn.CellEditingTemplate><DataTemplate><ComboBox Text="{Binding Name}" IsEditable="True" DisplayMemberPath="Name" ItemsSource="{Binding Source={StaticResource employers}}" SelectionChanged="OnChangeNameSelection"/></DataTemplate></DataGridTemplateColumn.CellEditingTemplate><Window.Resources><ObjectDataProvider x:Key="employers" ObjectType="{x:Type local:_2011_12_28_01_Data}" MethodName="GetEmployers"/></Window.Resources>是用ObjectDataProvider来获取数据C# codepublicclass _2011_12_28_01_Data { public IEnumerable<Employer> GetEmployers() { returnnew Employer[]{ new Employer{ Name="A", Id=1}, new Employer{ Name="B", Id=2}, new Employer{ Name="C", Id=3}, new Employer{ Name="D", Id=4}, new Employer{ Name="E", Id=5} }; } } 然后需要给Combox添加SelectionChanged事件：C# codeprivatevoid OnChangeNameSelection(object sender, SelectionChangedEventArgs e) { var data =this.FindResource("employers") as ObjectDataProvider; var employers = data.Data as IEnumerable<Employer>; var cmb = sender as ComboBox; var selectedItem =this.gridEmployers.SelectedItem as Employer; var employer = employers.FirstOrDefault(x => x.Name == (cmb.SelectedItem as Employer).Name); if (employer !=null) { selectedItem.Id = employer.Id; selectedItem.Name = employer.Name; } } 最后一点就是给你的数据实现INotifyPropertyChanged接口，否则看不到效果C# codepublicclass Employer : INotifyPropertyChanged { publicstring Name { get { return name; } set { name = value; if (PropertyChanged !=null) { PropertyChanged(this, new PropertyChangedEventArgs("Name")); } } } publicstring name; publicint Id { get { return id; } set { id = value; if (PropertyChanged !=null) { PropertyChanged(this, new PropertyChangedEventArgs("Id")); } } } publicint id; publicevent PropertyChangedEventHandler PropertyChanged; }注意，DataGrid和Combox绑定的不一样给DataGrid绑定是在初始化随便加一个作为示例C# codepublic _2011_12_28_01() { InitializeComponent(); this.DataContext =new Employer[] { new Employer { Name ="A", Id =1 } }; } 2011-12-28 20:48 推荐: 0 次 有帮助？ 请推荐 怎么木有人回答啊