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Exam 70-483 topic 2 question 141 discussion

Actual exam question from Microsoft's 70-483
Question #: 141
Topic #: 2
[All 70-483 Questions]

You are developing a Windows Forms (WinForms) application. The application displays a TreeView that has 1,000 nodes.
You need to ensure that if a user expands a node, and then collapses the TreeView, the node object is kept in memory unless the Garbage Collector requires additional memory.
Which object should you use to store the node?

  • A. GC
  • B. Handle
  • C. Cache
  • D. WeakReference
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Suggested Answer: D 🗳️
References: https://msdn.microsoft.com/en-us/library/ms404247.aspx
by HgstExam at Sept. 8, 2020, 9:34 p.m.

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HgstExam
Highly Voted 4 years, 9 months ago
Not sure but I think is correct, when the GC requires additional memory it will free some from WeakReferences, but your code has to know about refreshing the data if they were Garbage collected.
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