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Session Object
Session.Contents.Remove Method
   Syntax:
   Parameters:
   Return Values:
   Remarks:
  Examples:
Session.Contents.RemoveAll Method
   Syntax:
   Parameters:
   Return Values:
   Remarks:
  Examples:

Session Object

One of the key functions of Session Object is the session data control on the server.

Session.Contents.Remove Method

Session.Contents.Remove Method removes or deletes an item from the Contents collection of Session object..

Syntax:

Contents.Remove(
    id
)

 Or in ASP file Imply

<% Session.Contents.Remove(id) %>

Parameters:

id

The parameter "id" , a string or an integer,  is used to specify the name of the item to be removed. If id is a string, the specified name of the item in the contents collection will be removed. If id is an integer, the corresponding indexed item in the contents collection will be removed.  

Return Values:

void

This method has no return values.

Remarks:

The id can be either a string of an integer. If id is a string, the specified name of the item in the contents collection will be removed. If id is an integer, the corresponding indexed item in the contents collection will be removed.  However, the index of the collection will be updated after the removal of an item from the collection. Therefore, better to identify an item by its name.

The ASP collection support only the Count property and the Item, Remove, and RemoveAll methods. The Add method is not support and the item is added by declaration.

Examples:

  • Use Session.Contents.Remove to remove the specified item

    ASP script command:

    <%
    Session.Contents.Item("Sess1") = "Sess1value"
    Session.Contents.Item("Sess2") = "Sess2value"
    Session.Contents.Item("Sess3") = "Sess3value"
    Response.write "Elements in Session.Contents Collection :<br>"
    For Each element in Session.Contents
    Response.write element & " = " & Session(element) & "<br>"
    Next
    Response.write "<br>"
    Response.write "Elements in Session.Contents Collection :<br>"
    Session.Contents.Remove("Sess2")
    For Each element in Session.Contents
    Response.write element & " = " & Session(element) & "<br>"
    Next
    %>

    HTTP response output:

    Elements in Session.Contents Collection :<br>
    Sess1 = Sess1value<br>
    Sess2 = Sess2value<br>;
    Sess3 = Sess3value<br>
    <br>
    Elements in Session.Contents Collection :<br>
    Sess1 = Sess1value<br>
    Sess3 = Sess3alue<br>

    HTML web page ouput:

    Elements in Session.Contents Collection :
    Sess1 = Sess1value
    Sess3 = Sess3alue
    Sess2 = Sess2value

    Elements in Session.Contents Collection :
    Sess1 = Sess1value
    Sess3 = Sess3alue

  • Use Session.Contents.Remove to remove the second itemem

    ASP script command:

    <%
    Session("Sess1") = "Sess1value"
    Session.Contents("Sess2") = "Sess2value"
    Session.Contents.Item("Sess3") = "Sess3value"
    Response.write "Elements in Session.Contents Collection :<br>"
    For Each element in Session.Contents
    Response.write element & " = " & Session(element) & "<br>"
    Next
    Response.write "<br>"
    Response.write "Elements in Session.Contents Collection :<br>"
    Session.Contents.Remove(2)
    For itemno = 1 to Session.Contents.Count 
    Response.Write CStr(itemno) & " = " & _
    Session.Contents(itemno) & "<br>"
    Next
    %>

    HTTP response output:

    Elements in Session.Contents Collection :<br>
    Sess1 = Sess1value<br>
    Sess2 = Sess2value<br>
    Sess3 = Sess3value<br>
    <br>
    Elements in Session.Contents Collection :<br>
    1 = Sess1value<br>
    2 = Sess3value<br>

    HTML web page ouput:

    Elements in Session.Contents Collection :
    Sess1 = Sess1value
    Sess2 = Sess2value
    Sess3 = Sess3value

    Elements in Session.Contents Collection :
    1 = Sess1value
    2 = Sess3value

Session.Contents.RemoveAll Method

Session.Contents.RemoveAll Method removes or deletes all item from the Contents collection of Session object.

Syntax:

Contents.RemoveAll(
)

 Or in ASP file Imply

<% Session.Contents.RemoveAll %>

Parameters:

void

This method has no parameters.

Return Values:

void

This method has no return values.

Remarks:

All items in the Session.Contents collection are removed.

Examples:

  • Use Session.Contents.RemoveAll to remove all items

    ASP script command:

    <%
    Session("Sess1") = "Sess1value"
    Session.Contents("Sess2") = "Sess2value"
    Session.Contents.Item("Sess3") = "Sess3value"
    Response.write "Elements in Session.Contents Collection :<br>"
    For Each element in Session.Contents
    Response.write element & " = " & Session(element) & "<br>"
    Next
    Response.write "<br>"
    Response.write "Elements in Session.Contents Collection :<br>"
    Session.Contents.RemoveAll
    For Each element in Session.Contents
    Response.write element & " = " & Session(element) & "<br>"
    Next
    %>

    HTTP response output:

    Elements in Session.Contents Collection :<br>
    Sess1 = Sess1value<br>
    Sess2 = Sess2value<br>
    Sess3 = Sess3value<br>
    <br>
    Elements in Session.Contents Collection :<br>

    HTML web page ouput:

    Elements in Session.Contents Collection :
    Sess1 = Sess1value
    Sess2 = Sess2value
    Sess3 = Sess3value

    Elements in Session.Contents Collection :


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ID: 120200052 Last Updated: 2/14/2012 Revision: 0 Ref:

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References

  1. Active Server Pages,  , http://msdn.microsoft.com/en-us/library/aa286483.aspx
  2. ASP Overview,  , http://msdn.microsoft.com/en-us/library/ms524929%28v=vs.90%29.aspx
  3. ASP Best Practices,  , http://technet.microsoft.com/en-us/library/cc939157.aspx
  4. ASP Built-in Objects,  , http://msdn.microsoft.com/en-us/library/ie/ms524716(v=vs.90).aspx
  5. Response Object,  , http://msdn.microsoft.com/en-us/library/ms525405(v=vs.90).aspx
  6. Request Object,  , http://msdn.microsoft.com/en-us/library/ms524948(v=vs.90).aspx
  7. Server Object (IIS),  , http://msdn.microsoft.com/en-us/library/ms525541(v=vs.90).aspx
  8. Application Object (IIS),  , http://msdn.microsoft.com/en-us/library/ms525360(v=vs.90).aspx
  9. Session Object (IIS),  , http://msdn.microsoft.com/en-us/library/ms524319(8v=vs.90).aspx
  10. ASPError Object,  , http://msdn.microsoft.com/en-us/library/ms524942(v=vs.90).aspx
  11. ObjectContext Object (IIS),  , http://msdn.microsoft.com/en-us/library/ms525667(v=vs.90).aspx
  12. Debugging Global.asa Files,  , http://msdn.microsoft.com/en-us/library/aa291249(v=vs.71).aspx
  13. How to: Debug Global.asa files,  , http://msdn.microsoft.com/en-us/library/ms241868(v=vs.80).aspx
  14. Calling COM Components from ASP Pages,  , http://msdn.microsoft.com/en-us/library/ms524620(v=VS.90).aspx
  15. IIS ASP Scripting Reference,  , http://msdn.microsoft.com/en-us/library/ms524664(v=vs.90).aspx
  16. ASP Keywords,  , http://msdn.microsoft.com/en-us/library/ms524672(v=vs.90).aspx
  17. Creating Simple ASP Pages,  , http://msdn.microsoft.com/en-us/library/ms524741(v=vs.90).aspx
  18. Including Files in ASP Applications,  , http://msdn.microsoft.com/en-us/library/ms524876(v=vs.90).aspx
  19. ASP Overview,  , http://msdn.microsoft.com/en-us/library/ms524929(v=vs.90).aspx
  20. FileSystemObject Object,  , http://msdn.microsoft.com/en-us/library/z9ty6h50(v=vs.84).aspx
  21. http://msdn.microsoft.com/en-us/library/windows/desktop/ms675944(v=vs.85).aspx,  , ADO Object Model
  22. ADO Fundamentals,  , http://msdn.microsoft.com/en-us/library/windows/desktop/ms680928(v=vs.85).aspx
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