C#

<br />
string s3 = (string)obj; // method 2<br />

<br />
            object a = 123;<br />
<br />
            try {<br />
                string s1 = (string)a;<br />
                Console.WriteLine("method 1 value: {0}", s1);<br />
            }<br />
            catch {<br />
                Console.WriteLine("method 1 error.");<br />
            }<br />
<br />
            try {<br />
                string s1 = a as string;<br />
                Console.WriteLine("method 2 value: {0}", s1);<br />
            }<br />
            catch {<br />
                Console.WriteLine("method 2 error.");<br />
            }<br />
<br />
            // result:<br />
            method 1 error. <br />
            method 2 value: //here is a null value.<br />

leppie wrote:

An implicit cast is safer that using 'as', but I am lazy, so I prefer to use 'as'

Guffa wrote:

Implicit cast? Don't you mean an explicit cast?

<br />
public static string GetNullSafeString(object obj)<br />
{<br />
return (obj==null?null:obj.ToString());<br />
}<br />

beatles1692 wrote:

First:
I'm a fan of strong typed programming (that i think it will prevent many kind of bugs )
So I recommand using string obj="abc";

WuJunyin wrote:

string s4 = obj.ToString(); // method 3

Mehmet Fatih Akbulut wrote:

how can i bring it to front ?

kamalsss wrote:

but i dont think its very diffucult for a reader also to read bt to reada as but