我正在尝试为 datagridcell 创建样式。但文本值未显示。数据网格由 Student 类型的 Observable 集合填充。请在下面找到我的 xaml 代码。
StdCollection = new ObservableCollection<Student>()
{
new Student(){Name="Ram",StudID=01,Total=88},
new Student(){Name="John",StudID=02,Total=55},
new Student(){Name="Amar",StudID=03,Total=77},
new Student(){Name="Azar",StudID=04,Total=98},
};
<DataGrid Name="dgTest" CanUserAddRows="False" CanUserResizeColumns="True" CanUserSortColumns="True" IsReadOnly="False"
HorizontalAlignment="Left" Height="194" Margin="37,36,0,0" VerticalAlignment="Top" Width="236"
ItemsSource="{Binding StdCollection,UpdateSourceTrigger=PropertyChanged}"
AutoGenerateColumns="False"
>
<DataGrid.Columns>
<DataGridTemplateColumn Header="StudID" >
<DataGridTemplateColumn.CellStyle>
<Style TargetType="{x:Type DataGridCell}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type DataGridCell}">
<Border x:Name="border"
Background="WhiteSmoke"
BorderBrush="Transparent"
BorderThickness="2"
SnapsToDevicePixels="True">
<ContentPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}">
<ContentPresenter.ContentTemplate>
<DataTemplate>
<Border BorderBrush="Red" BorderThickness="1">
<TextBlock Foreground="Gray" FontSize="18" Text="{Binding StudID}"/>
</Border>
</DataTemplate>
</ContentPresenter.ContentTemplate>
</ContentPresenter>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</DataGridTemplateColumn.CellStyle>
</DataGridTemplateColumn>
<DataGridTextColumn Header="Name" Binding="{Binding Name,UpdateSourceTrigger=PropertyChanged}" />
<DataGridTextColumn Header="Total" Binding="{Binding Total,UpdateSourceTrigger=PropertyChanged}"/>
</DataGrid.Columns>
我得到的是空白单元格而不是值。 请让我知道我哪里做错了。
最佳答案
您的模板列应该是
<DataGridTemplateColumn Header="Id" >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<Border x:Name="border"
Background="WhiteSmoke"
BorderBrush="Transparent"
BorderThickness="2"
SnapsToDevicePixels="True">
<ContentPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}">
<ContentPresenter.ContentTemplate>
<DataTemplate>
<Border BorderBrush="Red" BorderThickness="1">
<TextBlock Foreground="Gray" FontSize="18" Text="{Binding StudID}"/>
</Border>
</DataTemplate>
</ContentPresenter.ContentTemplate>
</ContentPresenter>
</Border>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
用于恢复:
<Window.Resources>
<DataTemplate x:Key="columnTemplate">
<Border BorderBrush="Red" BorderThickness="1">
<TextBlock Foreground="Gray" FontSize="18" Text="{Binding Id}"/>
</Border>
</DataTemplate>
</Window.Resources>
<Grid x:Name="MainGrid">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<DataGrid Name="dgMainGrid" CanUserAddRows="False" CanUserResizeColumns="True" CanUserSortColumns="True" IsReadOnly="False"
HorizontalAlignment="Left" Height="194" Margin="37,36,0,0" VerticalAlignment="Top" Width="236"
AutoGenerateColumns="False">
<DataGrid.Columns>
<DataGridTemplateColumn Header="Id" CellTemplate="{StaticResource columnTemplate}"/>
<DataGridTextColumn Header="Name" Binding="{Binding Description, UpdateSourceTrigger=PropertyChanged}" />
</DataGrid.Columns>
</DataGrid>
</Grid>
关于WPF DataGridTemplateColumn 单元格样式不显示值,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/49189588/