Question

如何根据uwp c＃中的条件更改gridview行颜色？

我想根据我的条件突出显示gridview行。

Answer 1

执行此操作的便捷方法是在GridViewItem周围放置边框，并使用ValueConverter根据当前项目选择背景颜色。

首先定义值转换器：

public class ItemToColorConverter: IValueConverter
{
    //this converts the item from your data source to the color brush
    //of the background of the row
    public object Convert(object value, Type targetType, 
        object parameter, string language)
    {
       //cast the value parameter to the type of item in your data source
       var yourValue = ( YourType )value;
       if ( yourValue > 10 ) //some condition you want to use to choose the color
       {   
          //highlight
          return new SolidColorBrush( Colors.Green );
       }
       else
       {
          //leave no background
          return new SolidColorBrush( Colors.Transparent );
       }
    }

    //you don't have to implement conversion back as this is just one-way binding
    public object ConvertBack(object value, Type targetType, 
        object parameter, string language)
    {
        throw new NotImplementedException();
    }
}

现在您需要在App.xaml：

中创建转换器的Application资源实例

<Application ...>
   <Application.Resources>
      <converters:ItemToColorConverter x:Key="ItemToColorConverter" />
   </Application.Resources>
</Application>

现在在GridView项DataTemplate中使用此转换器：

<GridView ItemsSource="{Binding YourDataSource"}>
   <GridView.ItemTemplate>
      <DataTemplate>
         <Border Background="{Binding Converter={StaticResource ItemToColorConverter}">
            <!-- ... your content -->
         </Border>
      </DataTemplate>
   </GridView.ItemTemplate>
</GridView>

如何根据uwp c＃中的条件更改gridview行颜色？

1 个答案: