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[英]How to update text in a textbox by changing item of a dropdownlist in the same listview row
[英]ListView checkbox to visible or hide textbox in same row
我有一个带有一列具有复选框的列表视图,另一个列具有文本框,在列表视图中具有多个行。 我想设置文本框的可见和隐藏属性,具体取决于已选中和未选中的复选框。 它是使用MVVM模式和PRISM的WPF项目。 请帮助,我被困住了。
<ListView Width="Auto" ItemsSource="{Binding Path=PayFeeDetails}">
<ListView.View>
<GridViewColumn Header="Description" Width="110" >
<GridViewColumn.CellTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="80"/>
<ColumnDefinition Width="auto"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="{Binding Path=Description}"/>
<CheckBox Grid.Column="1" Width="30" Name="CommentCheckBox"/>
</Grid>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Width="140">
<GridViewColumnHeader Tag="GameName" Content="Game Name" />
<GridViewColumn.CellTemplate>
<DataTemplate>
<Grid>
<TextBox Text="{Binding Path=Balance}"/>
<TextBlock Text="{Binding Path=Balance}"/>
</Grid>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
您将需要向第二个Gridview Grid的可见性添加绑定。 现在,在Gridview1 itemclick上创建一个INotify属性更改,并从设置为第二个网格中的源的集合中更新该特定项目的Grid Visibility。
我会走这条路
1)创建一个具有使我知道可以编辑的属性的对象。
public class ItemToBindTo:INotifyPropertyChanged
{
#region Fields
public event PropertyChangedEventHandler PropertyChanged;
private bool _canEdit;
private string _description;
private string _balance;
#endregion
#region Properties
public bool CanEdit
{
get
{
return _canEdit;
}
set
{
_canEdit = value;
OnPropertyChanged("CanEdit");
}
}
public string Description
{
get
{
return _description;
}
set
{
_description = value;
OnPropertyChanged("Description");
}
}
public string Balance
{
get
{
return _balance;
}
set
{
_balance = value;
OnPropertyChanged("Balance");
}
}
#endregion
protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
PropertyChangedEventHandler handler = PropertyChanged;
if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName));
}
}
2)我将创建能见度的转换器
public class BoolToVisibilityConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var val = value as bool? ;
return val.HasValue && val.Value ? Visibility.Visible : Visibility.Collapsed;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
public class InvertedBoolToVisibilityConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var val = value as bool?;
return !(val.HasValue && val.Value) ? Visibility.Visible : Visibility.Collapsed;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
我将转换器作为静态资源
<sigColor:InvertedBoolToVisibilityConverter x:Key="InvertedBoolToVisibilityConverter"/>
<sigColor:BoolToVisibilityConverter x:Key="BoolToVisibilityConverter"/>
这将是您的新xaml
<ListView Width="Auto" ItemsSource="{Binding Path=PayFeeDetails}">
<ListView.View>
<GridView>
<GridViewColumn Header="Description" Width="110" >
<GridViewColumn.CellTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="80"/>
<ColumnDefinition Width="auto"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="{Binding Path=Description}"/>
<CheckBox Grid.Column="1" Width="30" Name="CommentCheckBox" IsChecked="{Binding CanEdit, Mode=TwoWay}"/>
</Grid>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn >
<GridViewColumnHeader Tag="GameName" Content="Game Name" />
<GridViewColumn.CellTemplate>
<DataTemplate>
<Grid>
<TextBox Text="{Binding Path=Balance}" Visibility="{Binding CanEdit, Converter={StaticResource BoolToVisibilityConverter}}"/>
<TextBlock Text="{Binding Path=Balance}" Visibility="{Binding CanEdit, Converter={StaticResource InvertedBoolToVisibilityConverter}}"/>
</Grid>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
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