wpf根据值为DataGrid中的单元格着色
本文关键字:单元格 DataGrid wpf | 更新日期: 2023-09-27 18:30:00
我想根据单元格包含的值更改单元格的文本颜色我使用了一个值转换器,但不知何故,传递给Convert函数的对象类型是DataRowView,我想传递Cell,因为我想根据它的值一次高亮显示一个单元格。希望这是有道理的。
谢谢!!
如果我应用于DataGrid的样式,则编码:
<UserControl.Resources>
<local:MyBkColorConverter x:Key="bkColorCvrt"/>
<Style x:Key="GridStyle" TargetType="DataGrid">
<Setter Property="ItemsSource" Value="{Binding}" />
<Setter Property="Background" Value="Transparent" />
<Setter Property="RowBackground" Value="Transparent" />
<Setter Property="HeadersVisibility" Value="None" />
<Setter Property="GridLinesVisibility" Value="None" />
<Setter Property="SelectionUnit" Value="Cell" />
<Setter Property="SelectionMode" Value="Single" />
<Setter Property="IsReadOnly" Value="True" />
<Setter Property="HorizontalScrollBarVisibility" Value="Disabled" />
<Setter Property="CellStyle">
<Setter.Value>
<Style TargetType="{x:Type DataGridCell}">
<Setter Property="Foreground">
<Setter.Value>
<Binding Converter="{StaticResource bkColorCvrt}"/>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter Property="Background" Value="Black">
</Setter>
</Trigger>
</Style.Triggers>
</Style>
</Setter.Value>
</Setter>
</Style>
</UserControl.Resources>
和c#部分:
公共类MyBkColorConverter:IValueConverter{#区域IValueConverter成员
public object Convert(object value, System.Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
//The type of value here is actually DataRowView
//here i would like to have a cell passed. is that possible to archive?
return Brushes.LightGray;
}
public object ConvertBack(object value, System.Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
#endregion
}
如果您创建了一个将应用于与该类型匹配的每个控件的样式。
只需使用DataGridTemplateColumn并创建自定义模板,即可随心所欲。
<DataGridTemplateColumn Header="Name">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Foreground="{Binding Name,Converter={StaticResource colconverter}}" Text="{Binding Name}" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
如果将Path
传递给需要在Binding
中转换的属性,则会起作用。
<DataGridTextColumn Binding="{Binding Path=AgentUtilization, StringFormat=P}" Header="Agent Utilization">
<DataGridTextColumn.CellStyle>
<Style TargetType="DataGridCell">
<Setter Property="Foreground" Value="{Binding Path=AgentUtilization, Converter={StaticResource UtilizationFormat}}" />
</Style>
</DataGridTextColumn.CellStyle>
</DataGridTextColumn>
传递给转换器的类型就是绑定路径中的属性类型(当然,在强制转换之后)。