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：

Foreground="White" ItemsSource="{Binding}" Style="{DynamicResource 
SuperListViewStyle}" ItemContainerStyleSelector="{StaticResource 
listViewItemStyleSelector}" x:Name="lvExecutionTable" >
                        
                            
                                
                                    
                                        
                                            
IsChecked="{Binding Path=IsSelected}"/>
                                        
                                    
                                    
Tag="IsSelected"/>
                                
                                
                                    
                                        
                                            
Foreground="{Binding Path=IsComfirmed, Converter={StaticResource 
IsComfirmedToColorConverter}}"/>
                                        
                                    
                                    
Tag="IsComfirmed"/>
                                
                                
                                    
Tag="MarketIndicator"/>
                                
                                
                                    
                                        
                                            
                                        
                                    
                                    
Tag="TradeType"/>
                                
                            
                        
                    

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);

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。

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