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问题描述
我有一个应用程序,当我尝试向其中添加项目时挂断了.当我检查跟踪文件时,我得到了以下条目:
I have an application which got hung up when I tried to add items to it. When I checked the trace file I got this entry:
for (int i=0; i<objects.Count; i++)
{
DataModelObject dmo = (DataModelObject)objects.GetAt(i);
sl.Add(dmo.Guid, dmo);
}
}
我不知道如何解决这个问题.
I don't know how to solve this issue.
推荐答案
问题是,在排序列表中,每个键都必须是唯一的.因此,您需要检查是否没有两次插入相同的键(引导值).代码如下所示:
The problem is that in a sorted list each key needs to be unique. So you need to check that you aren't inserting the same key (guid value) twice. Code shown below:
for (int i=0; i<objects.Count; i++)
{
DataModelObject dmo = (DataModelObject)objects.GetAt(i);
if (!sl.ContainsKey(dmo.Guid))
{
sl.Add(dmo.Guid, dmo);
}
}
这将确保每个键都是唯一的.但是,如果期望每个键有多个值,则需要使用其他类型的集合.
This will ensure that each key is unique. If however you are expecting more than one value for each key then you need to use a different type of collection.
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