时间格式转换有关问题，小弟初学者！多谢大家帮忙，

时间格式转换问题，小弟菜鸟！谢谢大家帮忙，急，在线等！
我用lbldateShow.Text=System.DateTime.Now.ToString();
运行得到的结果显示是2007-4-11   9：39：30
 
  但是我想得到的结果是Friday,5   January   2007,09:40:34   这样的格式，我要如何实现，请大家帮帮忙

------解决方案--------------------------------------------------------
using System;
using System.Globalization;

public class MainClass {
public static void Main(string[] args) {
DateTime dt = DateTime.Now;
String[] format = {
"d ", "D ",
"f ", "F ",
"g ", "G ",
"m ",
"r ",
"s ",
"t ", "T ",
"u ", "U ",
"y ",
"dddd, MMMM dd yyyy ",
"ddd, MMM d \ " '\ "yy ",
"dddd, MMMM dd ",
"M/yy ",
"dd-MM-yy ",
};
String date;
for (int i = 0; i < format.Length; i++) {
date = dt.ToString(format[i], DateTimeFormatInfo.InvariantInfo);
Console.WriteLine(String.Concat(format[i], " : " , date));
}

/** Output.
*
* d :08/17/2000
* D :Thursday, August 17, 2000
* f :Thursday, August 17, 2000 16:32
* F :Thursday, August 17, 2000 16:32:32
* g :08/17/2000 16:32
* G :08/17/2000 16:32:32
* m :August 17
* r :Thu, 17 Aug 2000 23:32:32 GMT
* s :2000-08-17T16:32:32
* t :16:32
* T :16:32:32
* u :2000-08-17 23:32:32Z
* U :Thursday, August 17, 2000 23:32:32
* y :August, 2000
* dddd, MMMM dd yyyy :Thursday, August 17 2000
* ddd, MMM d " ' "yy :Thu, Aug 17 '00
* dddd, MMMM dd :Thursday, August 17
* M/yy :8/00
* dd-MM-yy :17-08-00
*/
}
}

------解决方案--------------------------------------------------------
lbldateShow.Text = String.Format(new System.Globalization.CultureInfo( "en-US "), "{0:F} ", System.DateTime.Now)