C# 将项目添加到特定列的ListView中
我需要的正是这个: 但只是为了WPF 我知道,我应该使用绑定等,但这只是为了自己的测试 我还不知道如何才能做到这一点。这个怎么样:C# 将项目添加到特定列的ListView中,c#,wpf,listview,C#,Wpf,Listview,我需要的正是这个: 但只是为了WPF 我知道,我应该使用绑定等,但这只是为了自己的测试 我还不知道如何才能做到这一点。这个怎么样: 是的,我知道这种尝试使用了一个具体的对象Person和binding,但是使用这种方法,只需修改所需的列/属性,而不必考虑ListView本身,就非常简单了。我认为使用绑定的方法比任何其他方法都简单 XAML: <Window x:Class="WpfApplication1.MainWindow" xmlns="http://schemas.
是的,我知道这种尝试使用了一个具体的对象Person和binding,但是使用这种方法,只需修改所需的列/属性,而不必考虑ListView本身,就非常简单了。我认为使用绑定的方法比任何其他方法都简单 XAML:
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<ListView ItemsSource="{Binding}">
<ListView.View>
<GridView>
<GridView.Columns>
<GridViewColumn Header="FirstName" DisplayMemberBinding="{Binding FirstName}"></GridViewColumn>
<GridViewColumn Header="LastName" DisplayMemberBinding="{Binding LastName}"></GridViewColumn>
</GridView.Columns>
</GridView>
</ListView.View>
</ListView>
</Window>
C#:
公共部分类主窗口:窗口
{
公共主窗口()
{
初始化组件();
ObservableCollection列表=新的ObservableCollection();
添加(newperson(){FirstName=“FirstName”,LastName=“LastName”});
DataContext=list;
}
}
公共类人员:INotifyPropertyChanged
{
公共事件属性更改事件处理程序属性更改;
私有字符串_firstName;
公共字符串名{
得到
{
返回_firstName;
}
设置
{
_firstName=值;
if(PropertyChanged!=null)
{
PropertyChanged(新PropertyChangedEventArgs(“名字”));
}
}
}
私有字符串_lastName;
公共字符串姓氏
{
得到
{
返回_lastName;
}
设置
{
_lastName=值;
if(PropertyChanged!=null)
{
PropertyChanged(即新PropertyChangedEventArgs(“姓氏”);
}
}
}
}
这个怎么样:是的,我知道这种尝试使用了一个具体的对象Person和binding,但是使用这种方法,只需修改所需的列/属性,而不必考虑ListView本身,就非常简单了。我认为使用绑定的方法比任何其他方法都简单 XAML:
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<ListView ItemsSource="{Binding}">
<ListView.View>
<GridView>
<GridView.Columns>
<GridViewColumn Header="FirstName" DisplayMemberBinding="{Binding FirstName}"></GridViewColumn>
<GridViewColumn Header="LastName" DisplayMemberBinding="{Binding LastName}"></GridViewColumn>
</GridView.Columns>
</GridView>
</ListView.View>
</ListView>
</Window>
C#:
公共部分类主窗口:窗口
{
公共主窗口()
{
初始化组件();
ObservableCollection列表=新的ObservableCollection();
添加(newperson(){FirstName=“FirstName”,LastName=“LastName”});
DataContext=list;
}
}
公共类人员:INotifyPropertyChanged
{
公共事件属性更改事件处理程序属性更改;
私有字符串_firstName;
公共字符串名{
得到
{
返回_firstName;
}
设置
{
_firstName=值;
if(PropertyChanged!=null)
{
PropertyChanged(新PropertyChangedEventArgs(“名字”));
}
}
}
私有字符串_lastName;
公共字符串姓氏
{
得到
{
返回_lastName;
}
设置
{
_lastName=值;
if(PropertyChanged!=null)
{
PropertyChanged(即新PropertyChangedEventArgs(“姓氏”);
}
}
}
}
在WPF中更改项目时,您几乎总是在绑定数据中进行更改,并将这些更改通知UI。
因此,您必须利用ObservableCollection并实现INotifyPropertyChanged
请不要像在WinForms中那样尝试解决WPF问题,因为架构和编程风格完全不同,您会在某个时候陷入困境
XAML:
<Grid>
<StackPanel>
<ListView x:Name="MyListView">
<ListView.View>
<GridView>
<GridViewColumn Width="140" Header="Name" DisplayMemberBinding="{Binding Name}" />
<GridViewColumn Width="140" Header="City" DisplayMemberBinding="{Binding City}"/>
</GridView>
</ListView.View>
</ListView>
<Button Height="50" Click="Button_Click">Click</Button>
</StackPanel>
</Grid>
private ObservableCollection<MyData> _data;
public MainWindow()
{
InitializeComponent();
_data = new ObservableCollection<MyData>()
{
new MyData() {City = "City1", Name = "Name1"},
new MyData() {City = "City2", Name = "Name2"},
new MyData() {City = "City3", Name = "Name3"},
};
MyListView.ItemsSource = _data;
}
public class MyData : INotifyPropertyChanged
{
private string _name;
public string Name
{
get { return _name; }
set {
_name = value;
OnPropertyChanged("Name");
}
}
private string _city;
public string City
{
get { return _city; }
set
{
_city = value;
OnPropertyChanged("City");
}
}
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
_data[1].City = "NewValue";
}
点击
代码隐藏:
<Grid>
<StackPanel>
<ListView x:Name="MyListView">
<ListView.View>
<GridView>
<GridViewColumn Width="140" Header="Name" DisplayMemberBinding="{Binding Name}" />
<GridViewColumn Width="140" Header="City" DisplayMemberBinding="{Binding City}"/>
</GridView>
</ListView.View>
</ListView>
<Button Height="50" Click="Button_Click">Click</Button>
</StackPanel>
</Grid>
private ObservableCollection<MyData> _data;
public MainWindow()
{
InitializeComponent();
_data = new ObservableCollection<MyData>()
{
new MyData() {City = "City1", Name = "Name1"},
new MyData() {City = "City2", Name = "Name2"},
new MyData() {City = "City3", Name = "Name3"},
};
MyListView.ItemsSource = _data;
}
public class MyData : INotifyPropertyChanged
{
private string _name;
public string Name
{
get { return _name; }
set {
_name = value;
OnPropertyChanged("Name");
}
}
private string _city;
public string City
{
get { return _city; }
set
{
_city = value;
OnPropertyChanged("City");
}
}
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
_data[1].City = "NewValue";
}
private observedcollection\u数据;
公共主窗口()
{
初始化组件();
_数据=新的ObservableCollection()
{
新建MyData(){City=“City1”,Name=“Name1”},
新建MyData(){City=“City2”,Name=“Name2”},
新建MyData(){City=“City3”,Name=“Name3”},
};
MyListView.ItemsSource=\u数据;
}
公共类MyData:INotifyPropertyChanged
{
私有字符串\u名称;
公共字符串名
{
获取{return\u name;}
集合{
_名称=值;
不动产变更(“名称”);
}
}
私人字符串(城市),;
公共字符串城市
{
获取{return\u city;}
设置
{
_城市=价值;
不动产变更(“城市”);
}
}
公共事件属性更改事件处理程序属性更改;
公共void OnPropertyChanged(字符串propertyName)
{
if(PropertyChanged!=null)
{
PropertyChanged(这是新的PropertyChangedEventArgs(propertyName));
}
}
}
私有无效按钮\u单击(对象发送者,路由目标e)
{
_数据[1]。City=“NewValue”;
}
在WPF中更改项目时,您几乎总是在绑定数据中进行更改,并将这些更改通知UI。
因此,您必须利用ObservableCollection并实现INotifyPropertyChanged
请不要像在WinForms中那样尝试解决WPF问题,因为架构和编程风格完全不同,您会在某个时候陷入困境
XAML:
<Grid>
<StackPanel>
<ListView x:Name="MyListView">
<ListView.View>
<GridView>
<GridViewColumn Width="140" Header="Name" DisplayMemberBinding="{Binding Name}" />
<GridViewColumn Width="140" Header="City" DisplayMemberBinding="{Binding City}"/>
</GridView>
</ListView.View>
</ListView>
<Button Height="50" Click="Button_Click">Click</Button>
</StackPanel>
</Grid>
private ObservableCollection<MyData> _data;
public MainWindow()
{
InitializeComponent();
_data = new ObservableCollection<MyData>()
{
new MyData() {City = "City1", Name = "Name1"},
new MyData() {City = "City2", Name = "Name2"},
new MyData() {City = "City3", Name = "Name3"},
};
MyListView.ItemsSource = _data;
}
public class MyData : INotifyPropertyChanged
{
private string _name;
public string Name
{
get { return _name; }
set {
_name = value;
OnPropertyChanged("Name");
}
}
private string _city;
public string City
{
get { return _city; }
set
{
_city = value;
OnPropertyChanged("City");
}
}
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
_data[1].City = "NewValue";
}
点击
代码隐藏:
<Grid>
<StackPanel>
<ListView x:Name="MyListView">
<ListView.View>
<GridView>
<GridViewColumn Width="140" Header="Name" DisplayMemberBinding="{Binding Name}" />
<GridViewColumn Width="140" Header="City" DisplayMemberBinding="{Binding City}"/>
</GridView>
</ListView.View>
</ListView>
<Button Height="50" Click="Button_Click">Click</Button>
</StackPanel>
</Grid>
private ObservableCollection<MyData> _data;
public MainWindow()
{
InitializeComponent();
_data = new ObservableCollection<MyData>()
{
new MyData() {City = "City1", Name = "Name1"},
new MyData() {City = "City2", Name = "Name2"},
new MyData() {City = "City3", Name = "Name3"},
};
MyListView.ItemsSource = _data;
}
public class MyData : INotifyPropertyChanged
{
private string _name;
public string Name
{
get { return _name; }
set {
_name = value;
OnPropertyChanged("Name");
}
}
private string _city;
public string City
{
get { return _city; }
set
{
_city = value;
OnPropertyChanged("City");
}
}
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
_data[1].City = "NewValue";
}
private observedcollection\u数据;
公共主窗口()
{
初始化组件();
_数据=新的ObservableCollection()
{
新建MyData(){City=“City1”,Name=“Name1”},
新建MyData(){City=“City2”,Name=“Name2”},
新建MyData(){City=“City