DZone Snippets: csharp code

Build GoogleSearchService.dll from GoogleSearch.wsdl

ms_michel (Michel) — Thu, 15 Dec 2005 00:38:35 GMT

To generate the C# stub source type:



wsdl GoogleSearch.wsdl

This will result in GoogleSearchService.cs.
Compile with:



csc /target:library GoogleSearchService.cs

(or mcs /target:library GoogleSearchService.cs for mono)

Now you have the final stub assembly: GoogleSearchService.dll

How to work around the "double-click" problem

ms_michel (Michel) — Thu, 15 Dec 2005 00:32:50 GMT

This is a generic method to avoid "double-click" effect where a user click many times to validate. The button is hidden when the user clicks it. In order to not update all forms, the trick is applied to the Render event of the page.



protected override void Render(HtmlTextWriter output) {

    // Get normal html ouput

    StringBuilder stringBuilder = new StringBuilder();

    StringWriter stringWriter = new StringWriter(stringBuilder);

    HtmlTextWriter htmlWriter = new HtmlTextWriter(stringWriter);

    base.Render(htmlWriter);

    string html = stringBuilder.ToString();

    // Enhance submit buttons

    string onclick1 = "\"if (typeof(Page_ClientValidate) == 'function') Page_ClientValidate();";

    string onclick2 = "\"this.style.display='none';";

    html = html.Replace("onclick=" + onclick1, "onclick=" + onclick2 + onclick1.Substring(1));

    // Render updated html

    output.Write(html);

}

Simple webform to test mail

ms_michel (Michel) — Wed, 23 Nov 2005 21:30:33 GMT



<%@ Page Language="C#" %>

<%@ Import Namespace="System.Web.Mail" %>





  

    

    Mail test

  

  

    

      

        Smtp Server : 

        Smtp Username : 

        Smtp Password : 

        From : 

        To : 

        Subject : 

        Message :

Get Week number (french culture)

ms_michel (Michel) — Fri, 04 Nov 2005 21:39:05 GMT



public static int weekNumber(DateTime dt) {

	CultureInfo culture = CultureInfo.CurrentCulture;

	int intWeek = culture.Calendar.GetWeekOfYear(dt, CalendarWeekRule.FirstFourDayWeek, DayOfWeek.Monday);

	return intWeek;

}

Convert String to Enum

ms_michel (Michel) — Thu, 20 Oct 2005 17:15:07 GMT



enum EngineType {

	unknow, 

	access, 

	db2, 

	mysql, 

	odbc, 

	oledb, 

	oracle, 

	postgre, 

	sqlserver

}

string cnxTypeString = "mysql";

EngineType cnxTypeEngine = EngineType.unknow;

if (Enum.IsDefined(typeof(EngineType), cnxTypeString)) {

	cnxTypeEngine = (EngineType) Enum.Parse(typeof(EngineType), cnxTypeString, true);

}

Algorithm for calculating the date of Easter Sunday

ms_michel (Michel) — Tue, 27 Sep 2005 23:29:52 GMT



/// 

/// Algorithm for calculating the date of Easter Sunday

/// (Meeus/Jones/Butcher Gregorian algorithm)

/// http://en.wikipedia.org/wiki/Computus#Meeus.2FJones.2FButcher_Gregorian_algorithm

/// 

/// A valid Gregorian year

/// Easter Sunday

public static DateTime EasterDate(int year) {

    int Y = year;

    int a = Y % 19;

    int b = Y / 100;

    int c = Y % 100;

    int d = b / 4;

    int e = b % 4;

    int f = (b + 8) / 25;

    int g = (b - f + 1) / 3;

    int h = (19 * a + b - d - g + 15) % 30;

    int i = c / 4;

    int k = c % 4;

    int L = (32 + 2 * e + 2 * i - h - k) % 7;

    int m = (a + 11 * h + 22 * L) / 451;

    int month = (h + L - 7 * m + 114) / 31;

    int day = ((h + L - 7 * m + 114) % 31) + 1;

    DateTime dt = new DateTime(year, month, day);

    return dt;

}

Easter Monday = Easter Sunday + 1
Ascension Day = Easter Sunday + 39
Pentecost Sunday = Easter Sunday + 49
Pentecost Monday = Easter Sunday + 50

Capitalization

ms_michel (Michel) — Wed, 14 Sep 2005 20:58:59 GMT



using System.Text.RegularExpressions;



public class MyClass {



	public static void Main() {

		string text = "the quick red fox jumped over the lazy brown DOG.";

		System.Console.WriteLine("text=[" + text + "]");

		string result = Regex.Replace(text, @"\w+", new MatchEvaluator(MyClass.CapText));

		System.Console.WriteLine("result=[" + result + "]");

		System.Console.ReadLine();	

	}



	static string CapText(Match m) {

		string temp = m.ToString();

		temp = char.ToUpper(temp[0]) + temp.Substring(1, temp.Length - 1).ToLower();

		return temp;

	}



}

http://windows.oreilly.com/news/csharp_0101.html

yyyymmdd to DateTime

ms_michel (Michel) — Tue, 02 Aug 2005 20:56:52 GMT



DateTime myDate;

myDate = System.DateTime.ParseExact("20050802",

                                    "yyyyMMdd",

                                    System.Globalization.CultureInfo.InvariantCulture);

DateTime to yyyymmdd

ms_michel (Michel) — Tue, 02 Aug 2005 20:53:04 GMT



string myString = myDate.ToString("yyyyMMdd");

Set ValueToCompare at design time

ms_michel (Michel) — Fri, 29 Jul 2005 19:24:45 GMT

With DateTime, we have to convert value to its short date string representation :



myCompareValidator.ValueToCompare = myDateTime.ToShortDateString();