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Updated on 2025-03-07

C# method of traversing collections and removing elements

This article describes the C# method of traversing collections and removing elements. Share it for your reference, as follows:

If you use foreach, it will cause abnormal problems after the traversed collection is changed.

At this time, using the for loop can effectively solve this problem.

for(int i=0;i<;i++)
{
 if(The condition is true)
 {
 (List[i]);
 i--;
 }
}

Alternatively, use another List collection to store the object to be deleted.

List<T> newlists=new List<T>();
foreach(T t in List)
{
 (t);
}
foreach(T t in newlists)
{
 (t);
}

For more information about C# related content, please check out the topic of this site:Summary of C# traversal algorithm and skills》、《Summary of thread usage techniques for C# programming》、《Summary of C# operation skills》、《Summary of XML file operation skills in C#》、《Tutorial on the usage of common C# controls》、《Summary of WinForm control usage》、《C# data structure and algorithm tutorial》、《Summary of C# array operation skills"and"Introduction to C# object-oriented programming tutorial

I hope this article will be helpful to everyone's C# programming.