如何通过指定项目标签直接获取listview项目文本 [英] How to directly get listview item text by specifying item tag

问题描述

我有一个名为"listview1"的Listview.我正在列表视图中显示学生姓名.

我在数据表中收集了学生ID和姓名.

//在列表视图中附加学生姓名

I have a Listview named "listview1". I am displaying students name in the list view.

I got collection of students Id and name in a data table.

// appending the students name in the listview

foreach (DataRow dr in dtStudentInfo.Rows)
             { 
                Item = listView1.Items.Add(dr["strName"].ToString());
                Item.Tag = dr["nId"].ToString();
             }    

问题:如果我知道学生编号，如何获得学生的姓名?
例如:对于学生ID 5，我想知道学生的名字.
在这里，我可以通过将整个项目集合放入for循环和
中来做到这一点 我可以比较标签.但是我想要一个直接的方法，我可以将标签指定为5并获取
标签的学生姓名?

question : How can i get name of the student if i know the student Id?
Eg: For the student Id 5 i want to know the name of the student.
Here i can do this by getting whole item collection inside a for loop and
i can compare the tag. But i want a direct method where i can specify the tag as 5 and get
student name for the respective tag?

推荐答案

您可以使用LINQ搜索特定文本.您只需要很少的知识就可以做到.

请检查此 [

Hi,

You can search for particular text using LINQ. you need little knowledge to do that.

Please check this[^] discussion.

You will find solution.

Thanks
-Amit Gajjar

For adding items to list view there is overloaded method which takes 3 parameters, with key, name and image index

while retrieving use Find(key) or 
listView1.Items.IndexOfKey(key)

          listView1.Items.Add("key", "Text", 0);

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