WeakReference.Target Property

After setting this property to the target object, make sure that there are no other strong references to the object; otherwise, it will not be collected.

The following example tries to obtain an object from a cache of objects with weak references. If the object was reclaimed for garbage collection, a new object is generated. This example is part of a larger example provided for the WeakReference class.

// Obtain an instance of a data 
// object from the cache of 
// of weak reference objects.
Data d = _cache[index].Target as Data;
if (d == null)
{
    // Object was reclaimed, so generate a new one.
    Console.WriteLine("Regenerate object at {0}: Yes", index.ToString());
    d = new Data(index);
    regenCount++;
}
else
{
    // Object was obtained with the weak reference.
    Console.WriteLine("Regenerate object at {0}: No", index.ToString());
}

return d;

.NET Framework

.NET Framework Client Profile

Portable Class Library

.NET for Windows Store apps

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

Other Resources