Hot to avoid exception if we are adding items into Dictionary?

Posted by Rajesh_Kumar on 1/17/2014 | Category: ASP.NET Interview questions | Views: 1551 | Points: 40

Answer:

Always check ContainsKey method of Dictionary to avoid exceptions.

If (Not dict.ContainsKey(Key)) Then

  dict.Add(Key,Value)

End If

It checks whether key is there in a dictionary or not.

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