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:

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!