C#

Sub ToolBoxAddExample()
   ' This adds a Text item to the first tab of the Toolbox.
   ' Define the variables and create an object reference to the IDE's  
   ' ToolBox object.
   Dim win As Window = DTE.Windows.Item(Constants.vsWindowKindToolbox)
   Dim objToolbox As ToolBox = win.Object
   Dim colTbxTabs As ToolBoxTabs

   ' Create an object reference to the ToolBoxTabs object.
   colTbxTabs = objToolbox.ToolBoxTabs

   ' Add a new Text item to the first tab in the Toolbox.
   colTbxTabs.Item(1).ToolBoxItems.Add("New Text Item", "Some text to add to the document.", vsToolBoxItemFormat.vsToolBoxItemFormatText)
End Sub

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"All programmers are playwrights and all computers are lousy actors."

[Serializable]
public class MyObject {
  public int n1 = 0;
  public int n2 = 0;
  public String str = null;
}

MyObject obj = new MyObject();
obj.n1 = 1;
obj.n2 = 24;
obj.str = "Some String";
IFormatter formatter = new BinaryFormatter();
Stream stream = new FileStream("MyFile.bin", FileMode.Create, FileAccess.Write, FileShare.None);
formatter.Serialize(stream, obj);
stream.Close();