字典索引超出范围 [英] Dictionary Index out of range

问题描述

当我将TValue初始化为10时，出现索引超出范围错误.因此元素应该存在.

如果(！sportsDictionary.ContainsKey(sports.Team))
    {
        sportsDictionary.Add(sports.Team，new List< SportsObject>(10));
    }
     别的
    {
        sportsDictionary [sports.Team] [Team.sportsId] =体育； //错误:索引超出范围
    }
} 

---

pianoboyCoder

解决方案

过去，缓冲区溢出一直是一个大问题.结果，所有.NET集合类都将检查您提供的索引是否有效.不是.

一个常见的问题是索引以0而不是1开头.但是，要给您任何真实的信息，我们需要知道在任何给定时间索引是什么.

I am getting an index out of range error, when I initialize the TValue to 10. So the elements should exist.

 if (!sportsDictionary.ContainsKey(sports.Team))
    {
        sportsDictionary.Add(sports.Team, new List<SportsObject>(10));     
    }
     else
    {
        sportsDictionary[sports.Team][Team.sportsId] = sports; //Error: index out of range
    }
}

---

pianoboyCoder

解决方案

Buffer overflows have been a big issue in the past. As a result all .NET collection classes will check if the index you give it is valid. It is not.

A common problem is that indexes start with 0, not 1. However to give you any real information we need to know what the indexes are at any given time.

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