【IT168 技术文档】不得不说DataTemplate是WPF中的一项重要技术组成，可以方便让我们实现各种各样的UI样式，大大丰富了应用程序的界面设计。
通常我们都会在XAML文件中定义出具体的DataTemplate, 我举一个ListView的例子：
<ListView IsSynchronizedWithCurrentItem="True" Background="#FFFFFFFF" Foreground="White" ItemsSource="{Binding}" Style="{DynamicResource SuperListViewStyle}" ItemContainerStyleSelector="{StaticResource listViewItemStyleSelector}" x:Name="lvExecutionTable" >
<ListView.View>
<GridView>
<GridViewColumn>
<GridViewColumn.CellTemplate>
<DataTemplate>
<CheckBox HorizontalAlignment="Center" IsChecked="{Binding Path=IsSelected}"/>
</DataTemplate>
</GridViewColumn.CellTemplate>
<GridViewColumnHeader Content="选择" Tag="IsSelected"/>
</GridViewColumn>
<GridViewColumn>
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=IsComfirmed, Converter={StaticResource IsComfirmedConverter}}" Foreground="{Binding Path=IsComfirmed, Converter={StaticResource IsComfirmedToColorConverter}}"/>
</DataTemplate>
</GridViewColumn.CellTemplate>
<GridViewColumnHeader Content="确认状态" Tag="IsComfirmed"/>
</GridViewColumn>
<GridViewColumn DisplayMemberBinding="{Binding Path=MarketIndicator}">
<GridViewColumnHeader Content="市场类型" Tag="MarketIndicator"/>
</GridViewColumn>
<GridViewColumn>
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=TradeType}"/>
</DataTemplate>
</GridViewColumn.CellTemplate>
<GridViewColumnHeader Content="成交方式" Tag="TradeType"/>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
<ListView.View>
<GridView>
<GridViewColumn>
<GridViewColumn.CellTemplate>
<DataTemplate>
<CheckBox HorizontalAlignment="Center" IsChecked="{Binding Path=IsSelected}"/>
</DataTemplate>
</GridViewColumn.CellTemplate>
<GridViewColumnHeader Content="选择" Tag="IsSelected"/>
</GridViewColumn>
<GridViewColumn>
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=IsComfirmed, Converter={StaticResource IsComfirmedConverter}}" Foreground="{Binding Path=IsComfirmed, Converter={StaticResource IsComfirmedToColorConverter}}"/>
</DataTemplate>
</GridViewColumn.CellTemplate>
<GridViewColumnHeader Content="确认状态" Tag="IsComfirmed"/>
</GridViewColumn>
<GridViewColumn DisplayMemberBinding="{Binding Path=MarketIndicator}">
<GridViewColumnHeader Content="市场类型" Tag="MarketIndicator"/>
</GridViewColumn>
<GridViewColumn>
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=TradeType}"/>
</DataTemplate>
</GridViewColumn.CellTemplate>
<GridViewColumnHeader Content="成交方式" Tag="TradeType"/>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
例子中对每个Column定义了简单的DataTemplate。
我遇到的问题是如果这个List View需要动态编辑列，或者新加入一些列，就是如何用代码来实现对控件的DataTemplate的操作。
经过查阅MSDN的相关文档，最好找到了解决的办法，如下：
GridViewColumn column = new GridViewColumn();
GridViewColumnHeader h = new GridViewColumnHeader();
h.Content = "??????";
h.Tag = "*******";
column.Header = h;
DataTemplate dt = new DataTemplate();
FrameworkElementFactory fef = new FrameworkElementFactory(typeof(CheckBox));
Binding binding = new Binding();
binding.Path = new PropertyPath("MarketIndicator");
fef.SetBinding(CheckBox.ContentProperty, binding);
fef.SetValue(CheckBox.ForegroundProperty, Brushes.White);
dt.VisualTree = fef;
column.CellTemplate = dt;
(this.lvExecutionTable.View as GridView).Columns.Add(column);
GridViewColumnHeader h = new GridViewColumnHeader();
h.Content = "??????";
h.Tag = "*******";
column.Header = h;
DataTemplate dt = new DataTemplate();
FrameworkElementFactory fef = new FrameworkElementFactory(typeof(CheckBox));
Binding binding = new Binding();
binding.Path = new PropertyPath("MarketIndicator");
fef.SetBinding(CheckBox.ContentProperty, binding);
fef.SetValue(CheckBox.ForegroundProperty, Brushes.White);
dt.VisualTree = fef;
column.CellTemplate = dt;
(this.lvExecutionTable.View as GridView).Columns.Add(column);
DataTemplate对象的VisualTree属性的类型是FrameworkElementFactory，用来存放具体的Control。FrameworkElementFactory fef = new FrameworkElementFactory(typeof(CheckBox))语句定义了DataTemplate的顶层元素是一个CheckBox控件，使用fef.SetValue方法可以设置顶层元素的属性，如绑定等等。如果你需要定义的DataTemplate不止一个层次，那么你就要花点时间去设置顶层元素的Content属性。
