小编mah*_*_85的帖子

如何在下面的代码中编辑列表中的项目:

List<Class1> list = new List<Class1>();

int count = 0 , index = -1;
foreach (Class1 s in list)
{
    if (s.Number == textBox6.Text)
        index = count; // I found a match and I want to edit the item at this index
    count++;
}

list.RemoveAt(index);
list.Insert(index, new Class1(...));

我有一个通用列表

如何删除项目？

EX:

Class Student
{
    private number;
    public Number
    {
        get( return number;)
        set( number = value;)
    }

    private name;
    public Name
    {
        get( return name;)
        set( name = value;)
    }

    main()
    {
        static List<student> = new list<student>();

        list.remove...???
    }
}

List<T> lst = new List<T>();

public List<T> List
{
    get { return lst; }
    set { //cod...???????????????????? }
}

这是警告的原因？

BindingList<ClassName> lst = List.Select(obj => obj.Number == "NN").ToList<ClassName>();

.................................................

列表:

BindingList<ClassName> List = new BindingList<ClassName>();

埃罗:

System.Collections.Generic.IEnumerable'不包含'ToList'的定义和最佳扩展方法重载'System.Linq.Enumerable.ToList(System.Collections.Generic.IEnumerable)'有一些无效的参数