在wpf中编辑列表 [英] edit list in wpf

问题描述

嗨..
我在wpf中使用List< Type>(Type是一个类对象，其中包含id，name，price，quantity等字段).我想编辑具有选定ID的列表中的一行.
我该怎么办?
谢谢.

Hi..
i am using List<Type>(Type is a class object which contains fields like id,name,price,quantity) in wpf. i want to edit a row in a list with selected id.
how can i do this?
thanks.

推荐答案

您的问题是很讨厌的单词.您是否要允许用户编辑列表视图中的行，还是要更改List<>中的值?

Your question is porrly word. Do you want to allow the user to edit the row in a listview, or do you want to change the value in the List<>?

在列表中查找具有所需ID的项目并更改该项目的所需属性.您可以通过两种方法找到该项目-使用for循环遍历列表，或使用Linq.就个人而言，我认为for循环会更有效，但是Linq语句所需的代码更少.

Find the item in the list with the desired ID and change the desired property for that item. There are a couple of ways you can find the item - iterating the list with a for loop, or using Linq. Personally, I think a for loop is more efficient, but a Linq statement requires less code.

for (int i = 0; i < myList.Count; i++)
{
    if (myList[i].ID == ID)
    {
        myList[i].myPropery = newValue;
        break;
    }
}

或使用linq

or with linq

var result = (from MyItem item in myList 
              where item.ID = ID
              select item);
result.myProperty = property;

上面提供的代码可能需要调整，因为我是从内存中完成的.顺便说一句，这都是非常基础的编程内容.也许您应该更愿意使用Google.

Code provided above may need tweaking because I did it from memory. BTW, this is all very basic programming stuff. Maybe you should be more open to using google.

这篇关于在wpf中编辑列表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！