【发布时间】:2011-03-22 13:50:05
【问题描述】:
<ListView ItemsSource="{Binding MyData}">
<ListView.View>
<GridView>
<GridViewColumn Header="col1" DisplayMemberBinding="{Binding Path=value1}">
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock TextAlignment="Right" Text="{Binding Path=value1}"/>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Header="col2">
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock TextAlignment="Center" Text="{Binding Path=value2}"/>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Header="col3" DisplayMemberBinding="{Binding Path=value3}"/>
</GridView>
</ListView.View>
<ListView ItemsSource="{Binding MyData}">
col1 应该是右对齐的。 (不工作)
col2 应该是中心对齐的。 (工作)
col3 应该是左对齐的。 (工作)
DisplayMemberBinding 覆盖 CellTemplate 是否有原因?如果是这样,是否有解决方法(同时仍在使用 DisplayMemberBinding)?
编辑:我最终像 this 一样实现它:
<Window xmlns:util="clr-namespace:TestProject.Util">
<Window.Resources>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
</Style>
<Style TargetType="GridViewColumnHeader">
<Setter Property="HorizontalContentAlignment" Value="Left"/>
</Style>
<DataTemplate x:Key="value1Template">
<TextBlock TextAlignment="Right" Text="{Binding Path=value1}"/>
</DataTemplate>
<DataTemplate x:Key="value2Template">
<TextBlock TextAlignment="Right" Text="{Binding Path=value2}"/>
</DataTemplate>
</Window.Resources>
<Grid>
<ListView ItemsSource="{Binding MyData}" IsSynchronizedWithCurrentItem="True" util:GridViewSort.Command="{Binding SortCommand}">
<ListView.View>
<GridView>
<GridViewColumn Header="col1" CellTemplate="{StaticResource value1Template}" util:GridViewSort.PropertyName="value1"/>
<GridViewColumn Header="col2" CellTemplate="{StaticResource value2Template}" util:GridViewSort.PropertyName="value2"/>
</GridView>
</ListView.View>
</ListView>
</Grid>
</Window>
在后面的代码中:
private RelayCommand sortCommand;
public ICommand SortCommand { get { return sortCommand ?? (sortCommand = new RelayCommand(Sort)); } }
private void Sort(object param)
{
var propertyName = param as string;
var view = CollectionViewSource.GetDefaultView(MyData);
var direction = ListSortDirection.Ascending;
if (view.SortDescriptions.Count > 0)
{
var currentSort = view.SortDescriptions[0];
if (currentSort.PropertyName == propertyName)
direction = currentSort.Direction == ListSortDirection.Ascending ? ListSortDirection.Descending : ListSortDirection.Ascending;
view.SortDescriptions.Clear();
}
if (!string.IsNullOrEmpty(propertyName))
view.SortDescriptions.Add(new SortDescription(propertyName, direction));
}
【问题讨论】: