Xaml:不支持嵌套属性:DataGridTemplateColumn.CellTemplate
本文关键字：DataGridTemplateColumn CellTemplate 属性 嵌套 不支持 Xaml | 更新日期: 2023-09-27 18:00:22
我是Silverlight5初学者，我有一个错误，如下所示（这是我在xaml代码中指向的同一行，因为我已经正确引用了assembmy xmlns:data="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data"):
Error Nested properties are not supported: DataGridTemplateColumn.CellTemplate.
Error The attachable property 'CellTemplate' was not found in type 'DataGridTemplateColumn'.
Error Unexpected PROPERTYELEMENT in parse rule PropertyElement ::= . PROPERTYELEMENT Content? ENDTAG..
这样做的cod如下：
<data:DataGrid Grid.Row="1" x:Name="gridVersions" ItemsSource="{Binding ProgramVersion }" IsReadOnly="True" AutoGenerateColumns="False">
<data:DataGrid.Columns>
<data:DataGridTextColumn Header="Version" Binding="{Binding Version}" Width="2*"></data:DataGridTextColumn>
<data:DataGridTextColumn Header="Live" Binding="{Binding Live}" Width="2*"></data:DataGridTextColumn>
<data:DataGridTextColumn Header="Date modif." Binding="{Binding ModifDate}" Width="3*"></data:DataGridTextColumn>
<data:DataGridTextColumn Header="..." Binding="{Binding Path=More}" Width="*"></data:DataGridTextColumn>
**<data:DataGridTemplateColumn.CellTemplate>** //Error prone line
<DataTemplate>
<Button>More Info
<ToolTipService.ToolTip>
<Border Background="White">
<Grid Width="Auto">
<Grid.RowDefinitions>
<RowDefinition Height="20"/>
<RowDefinition Height="20"/>
<RowDefinition Height="20"/>
<RowDefinition Height="20"/>
<RowDefinition Height="20"/>
<RowDefinition Height="20"/>
<RowDefinition Height="20"/>
<RowDefinition Height="20"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="100"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Row="0" Grid.Column="0" Text="Name" />
<TextBlock Grid.Row="0" Grid.Column="1" Text="{Binding Name}"/>
<TextBlock Grid.Row="1" Grid.Column="0" Text="Author" />
<TextBlock Grid.Row="1" Grid.Column="1" Text="{Binding Author}"/>
<TextBlock Grid.Row="2" Grid.Column="0" Text="Date of Creation" />
<TextBlock Grid.Row="2" Grid.Column="1" Text="{Binding DateCreation}"/>
<TextBlock Grid.Row="3" Grid.Column="0" Text="Company" />
<TextBlock Grid.Row="3" Grid.Column="1" Text="{Binding Company}"/>
<TextBlock Grid.Row="4" Grid.Column="0" Grid.ColumnSpan="1" Text="Description"/>
<TextBox Grid.Row="5" Grid.Column="0" VerticalAlignment="Stretch" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" HorizontalAlignment="Stretch" Grid.ColumnSpan="2" Text="{Binding Description}"/>
<TextBlock Grid.Row="6" Grid.Column="0" Text="DocUrl" />
<TextBlock Grid.Row="6" Grid.Column="1" Text="{Binding DocUrl}"/>
<TextBlock Grid.Row="7" Grid.Column="0" Text="ProgramId" />
<TextBlock Grid.Row="7" Grid.Column="1" Text="{Binding ProgramId}"/>
</Grid>
</Border>
</ToolTipService.ToolTip>
</Button>
</DataTemplate>
</data:DataGridTemplateColumn.CellTemplate>
</data:DataGrid.Columns>
</data:DataGrid>
</Grid>
您需要首先定义一个实际的DataGridTemplateColumn元素：
<data:DataGrid.Columns>
<!-- Columns ... -->
<data:DataGridTemplateColumn>
<data:DataGridTemplateColumn.CellTemplate>
</data:DataGridTemplateColumn.CellTemplate>
</data:DataGridTemplateColumn>
</data:DataGrid.Columns>
请注意，在XAML语法中，当您有这样的元素和子元素时：
<a>
<a.b>
content
</a.b>
</a>
那么这意味着将a的属性b设置为"内容"。如果元素是这种形式：
<a>
<b.c>
</b.c>
</a>
这也可以是合法的，但这意味着在对象a上设置类b的附加依赖属性c。这就是为什么你会看到错误消息：
在类型"DataGridTemplateColumn"中找不到可附加的属性"CellTemplate"
XAML解析器认为您正在尝试将属性DataGridTemplateColumn.CellTemplate（"b.c"）附加到元素DataGrid.Columns（"a"）。