WPF DataGrid 触发单元格内容
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WPF DataGrid Trigger on cell content
提问by Galma88
I have a datagridthan contains value comes from a stored procedure. All values are set Boldas FontWeight.
我有一个datagrid比包含值来自一个stored procedure. 所有值都设置Bold为FontWeight。
I'd like to make the text normal when the cell content is equal to 0.
当单元格内容等于0时，我想让文本正常。
How can I do that with a trigger?
我怎么能用触发器做到这一点？
I've done it like below but it's not working:
我已经像下面那样做了，但它不起作用：
<DataGrid.CellStyle>
<Style TargetType="DataGridCell">
<Setter Property="FontWeight" Value="Bold" />
<Style.Triggers>
<Trigger Property="Content" Value="0">
<Setter Property="FontWeight" Value="Normal"/>
</Trigger>
</Style.Triggers>
</Style>
</DataGrid.CellStyle>
回答by Bahman_Aries
You can't access DataGridCell.Contentthat way, use a DataTriggerinstead based on your DataGrid.SelectedItem.YourPropertylike this:
您无法以DataGridCell.Content这种方式访问，请DataTrigger根据您的DataGrid.SelectedItem.YourProperty喜好使用 a ：
<DataGrid.CellStyle>
<Style TargetType="DataGridCell">
<Setter Property="FontWeight" Value="Bold" />
<Style.Triggers>
<DataTrigger Binding="{Binding YourProperty}" Value="0">
<Setter Property="FontWeight" Value="Normal"/>
</DataTrigger>
</Style.Triggers>
</Style>
</DataGrid.CellStyle>
EDIT:
编辑：
Assuming your DataGridColumnsare text-based then you can use an IValueConverteras below:
假设您DataGridColumns是基于文本的，那么您可以使用IValueConverter如下：
Note that if some of data-grid columns are not text-based, this solution still works for those columns which are.
请注意，如果某些数据网格列不是基于文本的，此解决方案仍然适用于那些基于文本的列。
Xaml:
Xml：
<Window.Resources>
<local:FontWeightConverter x:Key="fontWeightConverter"/>
</Window.Resources>
...
...
<DataGrid.CellStyle>
<Style TargetType="{x:Type DataGridCell}">
<Style.Setters>
<Setter Property="FontWeight"
Value="{Binding RelativeSource={RelativeSource Self},
Path=Content.Text,
Converter={StaticResource fontWeightConverter}}" />
</Style.Setters>
</Style>
</DataGrid.CellStyle>
Converter:
转换器：
public class FontWeightConverter : IValueConverter
{
public object Convert(object value, Type targetType,
object parameter, CultureInfo culture)
{
if (value != null && value.ToString() == "0")
return FontWeights.Normal;
return FontWeights.Bold;
}
public object ConvertBack(object value, Type targetType,
object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
回答by Olaru Mircea
This is a way to define that column:
这是定义该列的一种方法：
<DataGridTemplateColumn>
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<TextBox Text="{Binding DataBaseValue}"/>
</StackPanel>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
You can add a binding on the FontWeightof the TextBox with a converter associated to the Text if itself.
您可以在 TextBox 的 FontWeight 上添加绑定，并使用与 Text 关联的转换器（如果其本身）。
回答by Ppp
You could do this -
你可以这样做——
<DataGrid.CellStyle>
<Style TargetType="DataGridCell">
<Setter Property="FontWeight" Value="Bold" />
<Style.Triggers>
<DataTrigger Binding="{Binding Path=Content.Text, Mode=OneWay, RelativeSource={RelativeSource Self}}" Value="0">
<Setter Property="FontWeight" Value="Normal"/>
</Trigger>
</Style.Triggers>
</Style>
</DataGrid.CellStyle>
