WPF DataGrid的列標題樣式設計
能夠換行
1.定義列樣式
<DataTemplate x:Key="HeaderTemplateCenterAlign">
<Border>
<TextBlock TextWrapping="Wrap" Text="{Binding Path=Content, RelativeSource={RelativeSource Mode=TemplatedParent}}"/>
</Border>
</DataTemplate>
2.在列樣式中使用
<DataGrid Style="{x:Null}" ColumnWidth="80" CanUserSortColumns="True" CanUserAddRows="False" AutoGenerateColumns="False"
ItemsSource="{Binding Path=TargetModels}">
<DataGrid.Columns>
<DataGridTextColumn HeaderTemplate="{StaticResource HeaderTemplateCenterAlign}" IsReadOnly="True" Header="目標ID" Binding="{Binding ID}"/>
<DataGridTextColumn HeaderTemplate="{StaticResource HeaderTemplateCenterAlign}" IsReadOnly="True" CanUserSort="True" x:Name="ss" SortDirection="Ascending" Header="縱向距離" Binding="{Binding DistLong}"/>
<DataGridTextColumn HeaderTemplate="{StaticResource HeaderTemplateCenterAlign}" IsReadOnly="True" Header="橫向距離" Binding="{Binding DistLat}"/>
<DataGridTextColumn HeaderTemplate="{StaticResource HeaderTemplateCenterAlign}" IsReadOnly="True" Header="縱向速度" Binding="{Binding VrelLong}"/>
<DataGridTextColumn HeaderTemplate="{StaticResource HeaderTemplateCenterAlign}" IsReadOnly="True" Header="橫向速度" Binding="{Binding VrelLat}"/>
<DataGridTextColumn HeaderTemplate="{StaticResource HeaderTemplateCenterAlign}" IsReadOnly="True" Header="車長" />
<DataGridTextColumn HeaderTemplate="{StaticResource HeaderTemplateCenterAlign}" IsReadOnly="True" Header="車道" />
<DataGridTextColumn HeaderTemplate="{StaticResource HeaderTemplateCenterAlign}" IsReadOnly="True" Header="車真實速度" />
<DataGridTextColumn HeaderTemplate="{StaticResource HeaderTemplateCenterAlign}" IsReadOnly="True" Header="經度" />
<DataGridTextColumn HeaderTemplate="{StaticResource HeaderTemplateCenterAlign}" IsReadOnly="True" Header="緯度" />
</DataGrid.Columns>
</DataGrid>
實時排序
ICollectionView view = CollectionViewSource.GetDefaultView(dg.ItemsSource);
view.SortDescriptions.Clear();
SortDescription sd = new SortDescription("DistLong", ListSortDirection.Descending);
view.SortDescriptions.Add(sd);