C#如何选中listview上的所有复选框
如何选中listview上的所有复选框 Listview xaml：C#如何选中listview上的所有复选框,c#,.net,xaml,checkbox,C#,.net,Xaml,Checkbox,如何选中listview上的所有复选框 Listview xaml： <ListView x:Name="List" HorizontalAlignment="Left" Height="559" Margin="10,10,0,0" VerticalAlignment="Top" Width="607" Grid.ColumnSpan="2" ScrollViewer.HorizontalScrollBarVisibility="Visible" ScrollViewer.Vertica
<ListView x:Name="List" HorizontalAlignment="Left" Height="559" Margin="10,10,0,0" VerticalAlignment="Top" Width="607" Grid.ColumnSpan="2" ScrollViewer.HorizontalScrollBarVisibility="Visible" ScrollViewer.VerticalScrollBarVisibility="Auto" IsMouseCapturedChanged="List_IsMouseCapturedChanged">
<ListView.ContextMenu>
<ContextMenu>
<MenuItem Name="Dodaj" Header="Dodaj" Click="DodajUtwor_Click"/>
<MenuItem Name="Usuń" Header="Usuń Zaznaczone" Click="UsuńUtwór_Click"/>
<MenuItem Name="Clear" Header="Wyczyść Listę" Click="ClearList_Click"/>
<MenuItem Name="Check" Header="Zaznacz Wszystkie" Click="SelectAll_Click"/>
</ContextMenu>
</ListView.ContextMenu>
<ListView.View>
<GridView>
<GridViewColumn Width="30" >
<GridViewColumn.CellTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<CheckBox Name="CheckBox" Padding="10" IsChecked="{Binding IsChecked}"/>
<TextBlock Text="{Binding Data}"/>
</StackPanel>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Header="Nazwa Pliku" Width="100" DisplayMemberBinding="{Binding Nazwa}" />
<GridViewColumn Header="Tytuł" Width="100" DisplayMemberBinding="{Binding Tytuł}"/>
<GridViewColumn Header="Wykonawca" Width="100" DisplayMemberBinding="{Binding Autor}"/>
<GridViewColumn Header="Album" Width="100" DisplayMemberBinding="{Binding Album}"/>
<GridViewColumn Header="Nr" Width="100" DisplayMemberBinding="{Binding Nr}"/>
<GridViewColumn Header="Rok" Width="100" DisplayMemberBinding="{Binding Rok}"/>
<GridViewColumn Header="Gatunek" Width="100" DisplayMemberBinding="{Binding Gatunek}"/>
<GridViewColumn Header="Komantarze" Width="100" DisplayMemberBinding="{Binding Komentarze}"/>
<GridViewColumn Header="Okładka" Width="100" DisplayMemberBinding="{Binding Okładka}"/>
<GridViewColumn Header="Lokalizacja" Width="100" DisplayMemberBinding="{Binding Lokalizacja}"/>
</GridView>
</ListView.View>
</ListView>
我想更改listviev中true上的所有复选框。我不知道如何使用循环foreach。如何删除在true上带有复选框的项目 我猜您可能正在“标题”列中查找一个复选框，并在选中“标题”复选框时选择所有网格项 我们可以使用简单的子/子视图模型来实现这一点。下面的代码可能有助于/解决您的问题 Xaml/视图代码-
<GridViewDataColumn DataMemberBinding="{Binding IsChecked}" >
<GridViewDataColumn.Header >
<CheckBox HorizontalAlignment="Left" IsChecked="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type GridViewDataControl}}
,Path=DataContext.CheckAll}"
Command="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type GridViewDataControl}}
,Path=DataContext.CheckAllCommand}"
CommandParameter="{Binding RelativeSource={RelativeSource Self}, Path=IsChecked}" />
</GridViewDataColumn.Header>
<GridViewDataColumn.CellTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<CheckBox Name="CheckBox" Padding="10" IsChecked="{Binding IsChecked}" Command="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type GridViewDataControl}}
,Path=DataContext.ItemCommand}" CommandParameter="{Binding}"/>
<TextBlock Text=y"{Binding Data}"/>
</StackPanel>
</DataTemplate>
</GridViewDataColumn.CellTemplate>
</GridViewDataColumn>
class MainViewModel : Common.UserInterface.ViewModelBase, IDisposable
{
public MainViewModel()
{
CheckAllCommand = new DelegateCommand<bool>(OnCheckAllExecuted);
}
void OnCheckAllExecuted(bool status)
{
// Your logic goes here (if any)
CheckAll = items.All(item => item.IsChecked);
}
public DelegateCommand<ItemViewModel> ItemCommand { get; private set; }
private bool checkAll;
private ObservableCollection<ItemViewModel> items;
public DelegateCommand<bool> CheckAllCommand
{
get;
private set;
}
public ObservableCollection<ItemViewModel> Items
{
get
{
return items;
}
set
{
items = value;
OnPropertyChanged(() => Items);
}
}
public bool CheckAll
{
get { return checkAll; }
set
{
checkAll = value;
OnPropertyChanged(() => CheckAll);
}
}
}
class ItemViewModel : ViewModelBase
{
public bool ischecked;
public string data;
public new bool IsChecked
{
get { return isChecked; }
set
{
isChecked = value;
OnPropertyChanged("IsChecked");
}
}
public string Data
{
get { return data; }
set
{
data = value;
OnPropertyChanged("Data");
}
}
}
class MainViewModel:Common.UserInterface.ViewModelBase，IDisposable
{
公共主视图模型（）
{
CheckAllCommand=新的DelegateCommand（oncheckalLexected）；
}
已执行检查时无效（bool状态）
{
//你的逻辑在这里（如果有的话）
CheckAll=items.All（item=>item.IsChecked）；
}
公共DelegateCommand项命令{get；private set；}
私人布尔支票；
私人可观测收集项目；
公共DelegateCommand CheckAllCommand
{
得到；
私人设置；
}
公共可观测收集项目
{
得到
{
退货项目；
}
设置
{
项目=价值；
OnPropertyChanged（（）=>项目）；
}
}
公共布尔校验
{
获取{return checkAll；}
设置
{
checkAll=值；
OnPropertyChanged（（）=>CheckAll）；
}
}
}
类ItemViewModel:ViewModelBase
{
检查公共场所；
公共字符串数据；
公共新学校被检查
{
获取{return isChecked；}
设置
{
isChecked=值；
财产变更（“已检查”）；
}
}
公共字符串数据
{
获取{返回数据；}
设置
{
数据=价值；
OnPropertyChanged（“数据”）；
}
}
}
IsCheckedtrueclass MainViewModel : Common.UserInterface.ViewModelBase, IDisposable
{
public MainViewModel()
{
CheckAllCommand = new DelegateCommand<bool>(OnCheckAllExecuted);
}
void OnCheckAllExecuted(bool status)
{
// Your logic goes here (if any)
CheckAll = items.All(item => item.IsChecked);
}
public DelegateCommand<ItemViewModel> ItemCommand { get; private set; }
private bool checkAll;
private ObservableCollection<ItemViewModel> items;
public DelegateCommand<bool> CheckAllCommand
{
get;
private set;
}
public ObservableCollection<ItemViewModel> Items
{
get
{
return items;
}
set
{
items = value;
OnPropertyChanged(() => Items);
}
}
public bool CheckAll
{
get { return checkAll; }
set
{
checkAll = value;
OnPropertyChanged(() => CheckAll);
}
}
}
class ItemViewModel : ViewModelBase
{
public bool ischecked;
public string data;
public new bool IsChecked
{
get { return isChecked; }
set
{
isChecked = value;
OnPropertyChanged("IsChecked");
}
}
public string Data
{
get { return data; }
set
{
data = value;
OnPropertyChanged("Data");
}
}
}