listview里面的按钮c＃(Button inside listview c#)
我已成功在每个listview项目中放置一个按钮。 但是我想获得按钮所在的项目。在这种情况下，每个项目都是朋友，并且点击我想要的按钮时有一个按钮。 我怎样才能做到这一点？
视图
<ListView x:Name="dataGrid" ItemsSource="{Binding Friends}" Height="314" BorderThickness="0" SelectedItem="{Binding SelectedItemFriends}"> <ListView.ItemTemplate> <DataTemplate> <StackPanel Orientation="Horizontal"> <Image Source="Resources\Images\ic_status.png" Height="24" Width="18"/> <StackPanel Margin="5" Orientation="Vertical"> <TextBlock FontWeight="Bold" Text="{Binding name}"/> <StackPanel x:Name="RemoveItems" Margin="5" Orientation="Vertical"> <TextBlock Text="{Binding lastLocation}"/> <TextBlock Text="{Binding timestamp}"/> </StackPanel> <StackPanel x:Name="AdditionItems" Margin="5" Orientation="Vertical" Visibility="Collapsed"> <TextBlock Text="{Binding Path=loc.area}"/> <TextBlock Text="{Binding Path=loc.building}"/> <TextBlock Text="{Binding Path=loc.floor}"/> <TextBlock Text="{Binding Path=loc.room}"/> </StackPanel> </StackPanel> <Button Style="{DynamicResource FlatButtonStyle}" Command="{Binding DataContext.SelectViewCommand, ElementName=GeneralWindowView}" CommandParameter="ChatViewModel" x:Name="button1" Content="Chat" Margin="10"> <Button.Template> <ControlTemplate> <Image Source="Resources\Images\chat_image.png"/> </ControlTemplate> </Button.Template> </Button> </StackPanel> <DataTemplate.Triggers> <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ListViewItem}}, Path=IsSelected}" Value="true"> <Setter TargetName="AdditionItems" Property="Visibility" Value="Visible"/> <Setter TargetName="RemoveItems" Property="Visibility" Value="Collapsed"/> </DataTrigger> </DataTemplate.Triggers> </DataTemplate> </ListView.ItemTemplate> </ListView>最好的问候，安托万
I've successfully put a button inside each listview item. But I want to obtain the Item on which the button is.. In this case each item is a Friend and has a button on click of the button I want to now which friend it is. How can I achieve this?
VIEW
<ListView x:Name="dataGrid" ItemsSource="{Binding Friends}" Height="314" BorderThickness="0" SelectedItem="{Binding SelectedItemFriends}"> <ListView.ItemTemplate> <DataTemplate> <StackPanel Orientation="Horizontal"> <Image Source="Resources\Images\ic_status.png" Height="24" Width="18"/> <StackPanel Margin="5" Orientation="Vertical"> <TextBlock FontWeight="Bold" Text="{Binding name}"/> <StackPanel x:Name="RemoveItems" Margin="5" Orientation="Vertical"> <TextBlock Text="{Binding lastLocation}"/> <TextBlock Text="{Binding timestamp}"/> </StackPanel> <StackPanel x:Name="AdditionItems" Margin="5" Orientation="Vertical" Visibility="Collapsed"> <TextBlock Text="{Binding Path=loc.area}"/> <TextBlock Text="{Binding Path=loc.building}"/> <TextBlock Text="{Binding Path=loc.floor}"/> <TextBlock Text="{Binding Path=loc.room}"/> </StackPanel> </StackPanel> <Button Style="{DynamicResource FlatButtonStyle}" Command="{Binding DataContext.SelectViewCommand, ElementName=GeneralWindowView}" CommandParameter="ChatViewModel" x:Name="button1" Content="Chat" Margin="10"> <Button.Template> <ControlTemplate> <Image Source="Resources\Images\chat_image.png"/> </ControlTemplate> </Button.Template> </Button> </StackPanel> <DataTemplate.Triggers> <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ListViewItem}}, Path=IsSelected}" Value="true"> <Setter TargetName="AdditionItems" Property="Visibility" Value="Visible"/> <Setter TargetName="RemoveItems" Property="Visibility" Value="Collapsed"/> </DataTrigger> </DataTemplate.Triggers> </DataTemplate> </ListView.ItemTemplate> </ListView>Best regards, Antoine
最满意答案
你可以这样做......
class Friend { // Other properties...... public string Link_1 { get; set; } }在某处设置Link_1 =“ChatViewModel”
XAML
<Button x:Name="button1" Command="{Binding DataContext.SelectViewCommand, ElementName=GeneralWindowView}" CommandParameter="{Binding}">然后在你的SelectViewCommand命令处理程序中
public void OnSelectViewCommand (dynamic obj) { this.Current_ViewModel = this.GetViewModel(obj.Link_1); }编辑........
还有另一种方法直接解决了在CommandParameter中发送多个参数的问题......
XAML
添加manespace
xmlns:Converters="clr-namespace:CommandParameterExample.Converters"添加资源
<UserControl.Resources> <Converters:CommandParameter_Converter x:Key="CommandParameter_Converter" /> </UserControl.Resources>添加隐藏的文本块
<TextBlock Visibility="Collapsed" Name="VM" Text="ChatViewModel"></TextBlock>这是你的按钮
<Button Content="Chat" Command="{Binding DataContext.SelectViewCommand, ElementName=GeneralWindowView}" > <Button.CommandParameter> <MultiBinding Converter="{StaticResource CommandParameter_Converter}"> <Binding/> <Binding Path="Text" ElementName="VM"/> </MultiBinding> </Button.CommandParameter> </Button>这是CommandParameter_Converter
class CommandParameter_Converter : IMultiValueConverter { public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture) { return values.Clone(); // simply return an array } public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture) { throw new NotImplementedException(); } }这是你的SelectViewCommand
public void OnSelectViewCommand (object parameter) { var values = (object[])parameter; var FriendObject = (dynamic)values[0]; var ViewModelName = (string)values[1]; }这是解决问题的正确方法（在CommandParameter中发送2个参数）。 但正如你所看到的，它相当复杂......
You could do something like this....
class Friend { // Other properties...... public string Link_1 { get; set; } }set Link_1 = "ChatViewModel" somewhere
XAML
<Button x:Name="button1" Command="{Binding DataContext.SelectViewCommand, ElementName=GeneralWindowView}" CommandParameter="{Binding}">then in your SelectViewCommand Command handler
public void OnSelectViewCommand (dynamic obj) { this.Current_ViewModel = this.GetViewModel(obj.Link_1); }EDIT........
There is another way that directly addresses the issue of sending multiple parameters in the CommandParameter...
XAML
add the manespace
xmlns:Converters="clr-namespace:CommandParameterExample.Converters"add the Resource
<UserControl.Resources> <Converters:CommandParameter_Converter x:Key="CommandParameter_Converter" /> </UserControl.Resources>Add a hidden Text Block
<TextBlock Visibility="Collapsed" Name="VM" Text="ChatViewModel"></TextBlock>Here is your Button
<Button Content="Chat" Command="{Binding DataContext.SelectViewCommand, ElementName=GeneralWindowView}" > <Button.CommandParameter> <MultiBinding Converter="{StaticResource CommandParameter_Converter}"> <Binding/> <Binding Path="Text" ElementName="VM"/> </MultiBinding> </Button.CommandParameter> </Button>Here is the CommandParameter_Converter
class CommandParameter_Converter : IMultiValueConverter { public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture) { return values.Clone(); // simply return an array } public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture) { throw new NotImplementedException(); } }and here is your SelectViewCommand
public void OnSelectViewCommand (object parameter) { var values = (object[])parameter; var FriendObject = (dynamic)values[0]; var ViewModelName = (string)values[1]; }This is the correct way to resolve your issue (sending 2 arguments in CommandParameter). But as you can see, it's rather involved....
更多推荐
发布评论