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  1. PO
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    <p>Simply no. As this is not possible to access a method from a null object. In your case you want say</p> <pre><code>F f = new F() // where f = null f.SomeMethod(); // ?????? not possible </code></pre> <p>In this case you get a Null Reference Exception. You can see Darin's Comment and Explanation too on the same. How could you access anything from null, which means nothing. I have no idea about legacy but .Net does not provides you such things. Instead you can set it to null when its not needed anymore.</p> <p>Ex From MSDN</p> <pre><code>public class Node&lt;T&gt; { // Private member-variables private T data; private NodeList&lt;T&gt; neighbors = null; public Node() {} public Node(T data) : this(data, null) {} public Node(T data, NodeList&lt;T&gt; neighbors) { this.data = data; this.neighbors = neighbors; } public T Value { get { return data; } set { data = value; } } protected NodeList&lt;T&gt; Neighbors { get { return neighbors; } set { neighbors = value; } } } } public class NodeList&lt;T&gt; : Collection&lt;Node&lt;T&gt;&gt; { public NodeList() : base() { } public NodeList(int initialSize) { // Add the specified number of items for (int i = 0; i &lt; initialSize; i++) base.Items.Add(default(Node&lt;T&gt;)); } public Node&lt;T&gt; FindByValue(T value) { // search the list for the value foreach (Node&lt;T&gt; node in Items) if (node.Value.Equals(value)) return node; // if we reached here, we didn't find a matching node return null; } } and Right—that operate on the base class's Neighbors property. public class BinaryTreeNode&lt;T&gt; : Node&lt;T&gt; { public BinaryTreeNode() : base() {} public BinaryTreeNode(T data) : base(data, null) {} public BinaryTreeNode(T data, BinaryTreeNode&lt;T&gt; left, BinaryTreeNode&lt;T&gt; right) { base.Value = data; NodeList&lt;T&gt; children = new NodeList&lt;T&gt;(2); children[0] = left; children[1] = right; base.Neighbors = children; } public BinaryTreeNode&lt;T&gt; Left { get { if (base.Neighbors == null) return null; else return (BinaryTreeNode&lt;T&gt;) base.Neighbors[0]; } set { if (base.Neighbors == null) base.Neighbors = new NodeList&lt;T&gt;(2); base.Neighbors[0] = value; } } public BinaryTreeNode&lt;T&gt; Right { get { if (base.Neighbors == null) return null; else return (BinaryTreeNode&lt;T&gt;) base.Neighbors[1]; } set { if (base.Neighbors == null) base.Neighbors = new NodeList&lt;T&gt;(2); base.Neighbors[1] = value; } } } public class BinaryTree&lt;T&gt; { private BinaryTreeNode&lt;T&gt; root; public BinaryTree() { root = null; } public virtual void Clear() { root = null; } public BinaryTreeNode&lt;T&gt; Root { get { return root; } set { root = value; } } } </code></pre>
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    1. POHow to set C# object to null itself
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    1. USAmit Ranjan
    1. USAmit Ranjan
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    1. COFirstly this was working as c++ code. I did not need any wrapper. I operated on node class. I ported it to c# but I could not find any "delete this" equivalent to implement. I read msdn BST article before.
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      1. PO
      1. USuser1924210
 

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