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Secure weak reference with WeakReference?

Posted By:      Posted Date: September 16, 2010    Points: 0   Category :.NET Framework
Hi, I try to understand the scope of WeakReference by using the following use case: I have a almost simple class: Snippet         public  class  TestObject         {         } and use it in the following way: Snippet             TestObject  t = new  TestObject ();             WeakReference  r = new  WeakReference (t);                          Trace .WriteLine(String .Format("first looking: {0}" , r.IsAlive));             // writes true             t = null ;             Trace .WriteLine(String .Format("After setting null: {0}" , r.IsAlive));             // writes true             T

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weak reference but not too weak



I need to deal with a large quantity of data ( list of items) each item is a class with large data  .

In order to prevent any RAM problem i want to make a weak reference  to each items.

I want to implement a weak reference that disposes an item only if 80-90 % of the Ram is used otherwise

it leaves the objects in memory. 

If I just implement a weak reference most of the data is discharged from the RAM even if there are still plenty of RAM space.

Is there a simple way to acheave this without introducing eccessive overhead?


A better way to reference your wizard steps using named steps

Note: this article uses the plain vanilla but the concepts apply equally well to its popular counterpart .

By far the most common way that I see wizard steps reference in code snippets is by their index.

reference from menubuttons to text parts in article on the same page


Hi, I'm searching now for hours but couldn't find it.Cry

In my menu i have several buttons which (by a <a href..) should go the a part of an article that is in the same form.

Menu button : What is a database should go to the page default.aspx and in there is an article published.
A part of this article is having a piece of text about "what is a database"

Menu button: how to make a query should go to this same article in the same page but then to the part that is have the piece about the query. The next could be an example of what i'm doing:

    <li><a href="default.aspx ?????>what is a database</a></li>
    <li><a href="default.aspx ?????>what is a query</a></li>

Where my question marks are, there should be a connection to that particular piece of text.
In each article part there is an ID="text1" and the second part id="text2"

How shoudl i do that, Should i use a question mark.
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Registering controls of current assembly object reference NOT set error


Hi There,

I have created a simple ASP.net Web Application (2.0) and have added a web user control.

Now in my page I have added this control but I have registered like this,

<%@ Register Assembly="WebApplication1" Namespace="WebApplication1" TagPrefix="Custom" %>

Which means I want to access all the controls in my current Web Application project

Then I have added my user control like this,

<Custom:MyUserControl ID="MyUserControl1" runat="server" PublicProperty="Hello" />

Every thing is fine but when I execute the project, NO control on my user control gets "instantiated" and thus I receive error "Object Reference Not Set"

Note that My Control has,

1) Public property PublicProperty as String

2) 1 Label control

In Load Event Handler I am setting Text property of Label Control to PublicProperty. Here object reference NOT set error occurs (which means Label control is NOT initialized).

I don't want to register my control using Src, TagPrefix etc. Any ideas?


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