C# 数据网格中的WPF绑定SelectedItem
因此,我将一个TabControl绑定到一个项目列表(每个选项卡都是一个项目)——这很好。每个选项卡的内容都是一个DataGrid,其中包含一个项目员工列表——这也很好用。现在,我想显示一些关于DataGrid上当前选中的员工的信息。下面是一些代码: MainWindow.xaml文件:C# 数据网格中的WPF绑定SelectedItem,c#,wpf,xaml,binding,selecteditem,C#,Wpf,Xaml,Binding,Selecteditem,因此,我将一个TabControl绑定到一个项目列表(每个选项卡都是一个项目)——这很好。每个选项卡的内容都是一个DataGrid,其中包含一个项目员工列表——这也很好用。现在,我想显示一些关于DataGrid上当前选中的员工的信息。下面是一些代码: MainWindow.xaml文件: <Window.Resources> <DataTemplate x:Key="ItemTemplate"> <TextBlock Text="{Bindi
<Window.Resources>
<DataTemplate x:Key="ItemTemplate">
<TextBlock Text="{Binding Name}" />
</DataTemplate>
<DataTemplate x:Key="ContentTemplate">
<DataGrid ItemsSource="{Binding Employees}" SelectedItem="{Binding SelectedEmployee, Mode=TwoWay}" SelectionMode="Extended" SelectionUnit="FullRow" Name="employeesList">
</DataGrid>
</DataTemplate>
</Window.Resources>
我是WPF的新手,我读过一些技巧,但没有帮助。标签“emp”没有显示任何内容。我缺少什么?如果您没有通知您的属性已更改,请尝试此操作
public Employee SelectedEmployee
{
get { return selectedEmployee; }
set
{
if (selectedEmployee != value)
{
selectedEmployee = value;
LastName = value;
NotifyPropertyChanged("SelectedEmployee"); //NotifyPropertyChanged("SelectedItem");
}
}
}
测试:
代码:
public分部类主窗口:窗口,INotifyPropertyChanged
{
公共事件属性更改事件处理程序属性更改;
私有ObservableCollection_employees=新ObservableCollection();
私人雇员(u选择的雇员);;
公共主窗口()
{
初始化组件();
添加(新员工{Name=“sa_ddam213”});
}
公开收集雇员
{
获取{return\u employees;}
设置{u employees=value;}
}
公共雇员选定雇员
{
获取{return\u selectedEmployee;}
设置{u selectedEmployee=value;NotifyPropertyChanged(“selectedEmployee”);}
}
///
///通知属性已更改。
///
///信息。
public void NotifyPropertyChanged(字符串信息)
{
if(PropertyChanged!=null)
{
PropertyChanged(此,新PropertyChangedEventArgs(信息));
}
}
}
公营雇员
{
公共字符串名称{get;set;}
}
这似乎和预期的一样,还是我遗漏了什么?谢谢,那只是我的错误,我想写“SelectedEmployee”。我做了一些测试,但似乎可以工作,但是我没有保存DataGrid模板的xaml。
public Employee SelectedEmployee { get { return selectedEmployee; }
set
{
if (selectedEmployee != value)
{
selectedEmployee = value;
NotifyPropertyChanged("SelectedEmployee");
}
}
}
public event PropertyChangedEventHandler PropertyChanged;
private void NotifyPropertyChanged(String info)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(info));
}
}
public Employee SelectedEmployee
{
get { return selectedEmployee; }
set
{
if (selectedEmployee != value)
{
selectedEmployee = value;
LastName = value;
NotifyPropertyChanged("SelectedEmployee"); //NotifyPropertyChanged("SelectedItem");
}
}
}
<Window x:Class="WpfApplication6.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApplication6"
Title="MainWindow" Height="350" Width="763" Name="UI" >
<Window.Resources>
<DataTemplate x:Key="ItemTemplate">
<TextBlock Text="{Binding Name}" />
</DataTemplate>
</Window.Resources>
<Grid>
<DataGrid ItemsSource="{Binding ElementName=UI,Path=Employees}" SelectedItem="{Binding ElementName=UI,Path=SelectedEmployee}" SelectionMode="Extended" SelectionUnit="FullRow" Name="employeesList" Margin="0,41,0,0" />
<Label Content="{Binding ElementName=UI,Path=SelectedEmployee.Name}" Height="28" HorizontalAlignment="Left" Name="label1" VerticalAlignment="Top" Width="288" />
<Label Content="{Binding ElementName=employeesList,Path=SelectedItem.Name}" Height="28" HorizontalAlignment="Left" Name="label2" VerticalAlignment="Top" Width="288" Margin="294,0,0,0" />
</Grid>
</Window>
public partial class MainWindow : Window, INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
private ObservableCollection<Employee> _employees = new ObservableCollection<Employee>();
private Employee _selectedEmployee;
public MainWindow()
{
InitializeComponent();
Employees.Add(new Employee { Name = "sa_ddam213" });
}
public ObservableCollection<Employee> Employees
{
get { return _employees; }
set { _employees = value; }
}
public Employee SelectedEmployee
{
get { return _selectedEmployee; }
set { _selectedEmployee = value; NotifyPropertyChanged("SelectedEmployee"); }
}
/// <summary>
/// Notifies the property changed.
/// </summary>
/// <param name="info">The info.</param>
public void NotifyPropertyChanged(String info)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(info));
}
}
}
public class Employee
{
public string Name { get; set; }
}