wpf listbox和datatemplate里面有网格

时间:2013-04-25 09:50:11

标签: wpf listbox grid datatemplate

我有一个问题。我希望将ListBoxDataTemplate作为Grid。该网格有2列。我想将第一列宽度设置为3*,将另一列宽度设置为*。这该怎么做?我会复制我的代码。

<ListBox x:Name="commandListbox" Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" HorizontalAlignment="Stretch">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <Grid>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="3*" />
                    <ColumnDefinition Width="*" />
                </Grid.ColumnDefinitions>

                <TextBlock Grid.Column="0" Text="{Binding}"/>
                <TextBlock Grid.Column="1" Text="icon" />
           </Grid>
        </DataTemplate>
    </ListBox.ItemTemplate>                
</ListBox>

3 个答案:

答案 0 :(得分:6)

最好将模板存储在资源中:

<Window.Resources>
  <DataTemplate x:Key="DefaultTemplate">
    <Grid x:Name="GridItem" Width="200">
       <Grid.ColumnDefinitions>
           <ColumnDefinition Width="Auto" />
           <ColumnDefinition Width="Auto" />
       </Grid.ColumnDefinitions>

       <TextBlock x:Name="Parameter" Grid.Column="1" Text="{Binding Path=Name}" Margin="5,1,0,0" />
       <TextBlock x:Name="Value" Grid.Column="2" Text="{Binding Path=Age}" Margin="85,1,0,0" />

       <Line x:Name="Separator" X1="0" X2="0" Y1="0" Y2="20" SnapsToDevicePixels="True" Grid.Column="1" Stroke="Black" StrokeThickness="2" Margin="50,0,0,0" HorizontalAlignment="Left" />
   </Grid>
 </DataTemplate>
</Window.Resources>

ListBox define:

<ListBox Name="MyListBox" ItemTemplate="{StaticResource DefaultTemplate}" />

在代码C#中:

public class Person
{
  public string Name
  {
    get;
    set;
  }

 public int Age
 {
   get;
   set;
 }
}

定义ObservableCollection:

private ObservableCollection<Person> MyListBoxData = new ObservableCollection<Person>();

在集合上添加项目:

MyListBoxData.Add(new Person()
{
  Name = "Nick",
  Age = 21,
});

MyListBoxData.Add(new Person()
{
  Name = "Adam",
  Age = 11,
});

MyListBox.ItemsSource = MyListBoxData;

<强>编辑:

然后设置第一个TextBlock的Width =“3 *”,Width =“*”和Margin =“ - WidthGrid”:

<Grid x:Name="GridItem" Width="300">
 <Grid.ColumnDefinitions>
  <ColumnDefinition Width="3*" />
  <ColumnDefinition Width="*" />
 </Grid.ColumnDefinitions>

 <TextBlock x:Name="Parameter" Grid.Column="1" Text="{Binding Path=Name}" Margin="-220,0,0,0" />
 <TextBlock x:Name="Value" Grid.Column="2" Text="{Binding Path=Age}" Margin="0,0,0,0" />
</Grid>

答案 1 :(得分:2)

使用IsSharedSizeScope在生成的网格上共享列大小调整,用于自动宽度(不能为*大小调整):

通过http://wpftutorial.net/DataTemplates.html

<ListBox ItemsSource="{Binding}" BorderBrush="Transparent" 
     Grid.IsSharedSizeScope="True"
     HorizontalContentAlignment="Stretch">
<ListBox.ItemTemplate>
    <DataTemplate>
        <Grid Margin="4">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="Auto" SharedSizeGroup="Key" />
                <ColumnDefinition Width="*" />
            </Grid.ColumnDefinitions>
            <TextBlock Text="{Binding Name}" FontWeight="Bold"  />
            <TextBox Grid.Column="1" Text="{Binding Value }" />
        </Grid>
    </DataTemplate>
</ListBox.ItemTemplate>

See MSDN remarks

  

参与大小分享的列和行不尊重星号大小。在此方案中,Star大小调整被视为自动。   如果在资源模板中将IsSharedSizeScope设置为true,则网格大小共享不起作用,并且在该模板之外定义SharedSizeGroup。

答案 2 :(得分:1)

<ListBox x:Name="commandListbox" Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" HorizontalAlignment="Stretch">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <Grid>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="0.75*" />
                    <ColumnDefinition Width="0.25*" />
                </Grid.ColumnDefinitions>

                <TextBlock Grid.Column="0" Text="{Binding}"/>
                <TextBlock Grid.Column="1" Text="icon" />
           </Grid>
        </DataTemplate>
    </ListBox.ItemTemplate>                
</ListBox>

如果我理解正确的话,你正在寻找第一列的3/4空间和第二列的1/4空间。以上述格式设置宽度必须解决问题。

希望它能解决。