Default Parameter in .NET 4(C#)

Posted by Yousef_Jadallah on ASP.net Weblogs See other posts from ASP.net Weblogs or by Yousef_Jadallah
Published on Fri, 16 Apr 2010 17:44:08 GMT Indexed on 2010/04/16 17:53 UTC
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During my using for the new release .NET 4, I notice that C# support default (Optional) Parameters, after thousands of complains form C# programmer- especially it was supported by VB.NET- now it's available.

Let's create Test function with Optional Parameter

 

private void TestFunction(string  para1, string  para2 = "Default")
    {
        Response.Write("Parameter one =" + para1 +" , Parameter two="+ para2 );                           
    }

Then, if you try to call this method the Intellisense display likes this:

 

OpetionalParameter

 

Therefore,if you don’t pass the second parameter the value of para2 will be “Default”.

With this new future in C#, you can ignore many overload functions event it was acceptable solution!

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