首先你这个比较多，我这边提供一个方法，算是一个简易版的，希望能举一反三
计算前：
计算后：
前端代码：
计算
后台代码：
using System.Collections.ObjectModel;
using System.Windows;
namespace WpfApplication1
{
///
/// MainWindow.xaml 的交互逻辑
///
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
getdata();
data_datagrid.ItemsSource = daitemsource;
}
public class data
{
public double fistNumber { get; set; }
public double secondNumber { get; set; }
public double thirdNumber { get; set; }
public double averageNumber { get; set; }
}
ObservableCollection<data> daitemsource;
private void getdata()//在你那应该是读取数据之后赋值给data类各成员，这里是直接赋值了
{
daitemsource = new ObservableCollection<data>();
daitemsource.Add(new data { fistNumber = 5, secondNumber = 60, thirdNumber = 10 });
daitemsource.Add(new data { fistNumber = 15, secondNumber = 36, thirdNumber = 160 });
daitemsource.Add(new data { fistNumber = 25, secondNumber = 56, thirdNumber = 710 });
}
private void Button_Click(object sender, RoutedEventArgs e)
{
foreach (var item in daitemsource)
{
item.averageNumber = item.fistNumber + item.secondNumber + item.thirdNumber;
}
data_datagrid.Items.Refresh();
}
}
}
