Collections in C# -

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Changing a vb.net component to C #, I get this error

Common Type 'System.Collections.ObjectModel.Collection & lt; T & gt;

This is what I did

In VB.NET it was 

  Private _bufferCol as collection   
 I did it in C # 
 
  private collection _bufferCol = new archive ();  
 
 My manifesto 
 
  is using Microsoft Visual stale; Using System.Collections; Using System.Collections.Generic; Using System.ComponentModel; Using System.Collections.ObjectModel;  
 
 Is any body able to help me?

Write a type declaration from your collection, this is how your collection is?

For example: 

  // strings private collection & lt; String & gt; _bufferCol = new archive & lt; String & gt; ();

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