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Display Emoticons on an ASP.NET Webpage

, 28 Jun 2003 CPOL
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Code to replace emoticons within a string by their HTML-images.

Sample Image - AspNetEmoticons.jpg

Introduction

Inspired by a question in the CodeProject's ASP.NET forum, I decided to quick-assemble some code for displaying emoticons within a web page.

Displaying emoticons is the task of replacing text-fragments within a string (e.g. "Smile | :) ", "Frown | :-( " ) by some HTML code that displays an image (e.g. Laughing smiley and Crying smiley). So simple spoken, the whole project is a nicely encapsulated string-replace that hopefully is useful to the guy who asked the question, as well as to other programmers.

Description

The project contains a ready-to-compile-and-run Visual Studio 2003 solution with one Web Form web page Index.aspx to test out the functionality. The effective code is contained within the class Emoticon in the file Emoticons.cs.

The class Emoticon has two static members. The first is:

/// <summary>
/// Returns a collection of all available emoticons.
/// </summary>
public static Emoticon[] All

to get a collection of all available emoticons. Within this member, the actual references to the image files are created, so if you want to add your own emoticons, you must place the news images within the Emoticons subfolder and modify this member to "know" the new emoticons.

The second static member is the function:

/// <summary>
/// Returns a string with all emoticons replaced by their images.
/// </summary>
public static string Format( string input )

This member function does the core replacement of an input string with the HTML-code to display the the emoticons. Any occurrence of the emoticons registered within All are replaced and returned by this function.

Using the code

To use the code, simply call the Format function like this:

string text = Emoticon.Format( "Some text with a smiley :-) emoticon." );

History

  • 2003-06-29: Article created

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Uwe Keim
Chief Technology Officer Zeta Producer Desktop CMS
Germany Germany
Uwe does programming since 1989 with experiences in Assembler, C++, MFC and lots of web- and database stuff and now uses ASP.NET and C# extensively, too. He has also teached programming to students at the local university.
 
In his free time, he does climbing, running and mountain biking. Recently he became a father of a cute boy.
 
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Comments and Discussions

 
SuggestionEmoticons in asp.net using simple javascript PinmemberKrishanGahlot13-Oct-12 2:16 
Generalwww.dotnetobject.com Pinmemberfarooq14820088-Aug-11 19:29 
GeneralNice work!!! Pinmembersimpa29-Sep-10 3:04 
GeneralThx PinmemberMorten Jørgensen1-Feb-10 11:40 
GeneralEmoticon.Format in a bound dataGrid Pinmembergadgetfbi16-Jul-03 14:45 
GeneralRe: Emoticon.Format in a bound dataGrid PinsitebuilderUwe Keim20-Jul-03 4:33 
GeneralPlease be patient... PinsitebuilderUwe Keim29-Jun-03 9:54 
GeneralRe: Please be patient... PinsitebuilderUwe Keim29-Jun-03 10:02 

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