发表新帖
发表新帖

WPF DataGrid Grouping with sums and other fields

前端 未结
关注
1 2045
小鲜肉
小鲜肉 2020-12-06 07:28

I have a DataGrid that is bound to collection and that I want to be grouped. Here is the code

Collection:

private string _ID;
private string _Descri
1条回答
  • 感情败类
    感情败类 (楼主)
    2020-12-06 07:53

    You could use a converter that's passed the Items property of the group header e.g.

    where the converter performs the calculation and passes back the total as the string for the text block:

    public class GroupsToTotalConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        if (value is ReadOnlyObservableCollection)
        {
            var items = (ReadOnlyObservableCollection)value;
            Decimal total = 0;
            foreach (GroupItem gi in items)
            {
                total += gi.Amount;
            }
            return total.ToString();
        }
        return "";
    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        return value;
    }
}



    As for the description I'd suggest also grouping by that, and writing another converter to pull out the description from the Items in a similar manner to above.
    
    
    
             
    
                                                        
    
            
            
    
              
                
                0
              
                   
                
               讨论(0)
              
                                                  
              
              
    
                          
             
       
          
              
    
                                    
    
                         
          
                              			
        
        
        
    
          
    
            
            
    
              
              
    
            
    


                                 
              
    
            
    
                          
    

        
         
    
                
                
    
                  
                
    
                
    
                   看不清?
                
    
              
    
                                  
    
                    
   
                 
             
              
    提交回复
    
            
    
          
    
        
    
      
       
      
    
    
    
          
 
     
 
    
        
    热议问题