我想选择全部项目在ListView,使用mvvm。使用代码隐藏,我试过SelectAll()和foreach选择它们,但我想使用MVVM像我的项目的其余部分。有任何想法吗?在MVVM中选择所有ListView项目
这里是列表视图:
<ListView x:Name="TransformerList" ItemsSource="{Binding CurrentStations}" Margin="16,250,0,10.4" SelectionMode="Multiple" HorizontalAlignment="Left" Width="411">
<i:Interaction.Triggers>
<i:EventTrigger EventName="Select">
<i:InvokeCommandAction Command="{Binding SeeAllCustomersCommand}" CommandParameter="{Binding Item1}"/>
</i:EventTrigger>
<i:EventTrigger EventName="SelectionChanged">
<i:InvokeCommandAction Command="{Binding SelectedCustomersChangedCommand}" />
</i:EventTrigger>
</i:Interaction.Triggers>
<ListView.ItemContainerStyle>
<Style TargetType="{x:Type ListViewItem}">
<Setter Property="IsSelected" Value="{Binding Mode=TwoWay, Path=IsSelected}" />
<Setter Property="IsSelected" Value="{Binding Mode=TwoWay, Path=TransformerIsSelected}" />
</Style>
</ListView.ItemContainerStyle>
<ListView.View>
<GridView>
<GridViewColumn Header="Nettstasjon" Width="70" DisplayMemberBinding="{Binding Path=Name}" />
<GridViewColumn Header="Område" Width="210" DisplayMemberBinding="{Binding Path=Area}"/>
<GridViewColumn Header="Radial" Width="110" DisplayMemberBinding="{Binding Path=Radial}"/>
</GridView>
</ListView.View>
</ListView>
和按钮:
public ICommand cmd_VelgAlle { get { return new RelayCommand(on_cmd_VelgAlle); } }
private void on_cmd_VelgAlle()
{
foreach (item i in CurrentStations) //the item here gives an error "type or namespace could not be found"
{
i.TransformerIsSelected = true;
}
}
而且MVVM:
private bool _TransformerIsSelected;
public bool TransformerIsSelected
{
get { return _TransformerIsSelected; }
set
{
_TransformerIsSelected = value;
RaisePropertyChanged("TransformerIsSelected");
}
}
绑定'ListViewItem.IsSelected'在您的项目视图模型的一些布尔属性,并更改该属性对所有项目为真 – dkozl
我已经在这里回答了这个问题:[在列表视图中选择项目](http://stackoverflow.com/questions/35339524/how-can-i-get-all-selected-items-from-listview-in-viewmodel-class/35340701#35340701) –