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    引言： source:http://msdn.microsoft.com

 

 

Using Reflection to Bind Business Objects to ASP.NET Form Controls
source:

http://msdn.microsoft.com/asp.net/default.aspx?pull=/library/en-us/dnaspp/html/aspformbinding.asp 【程序编程相关:JDBC 高级数据类型的应用】

【推荐阅读:文字逐字上屏的实现（C代码）】

【扩展信息:学习JSP指南】

begin:

john dyer

dallas theological seminary

september 2004

applies to:

   microsoft visual studio 2005 and previous versions

   asp.net 1.1

   c# programming language

   visual basic programming language

summary: use reflection to bind your business objects to asp.net web forms with a single line of code, resulting in decreased complexity and fewer errors. (12 printed pages)

download the msdformbinding.msi sample file.

contents

introduction

simplifying and shortening form code

getting started: retrieving a list of properties from reflection

binding object property values to controls

setting values of unknown controls with known properties

reversing the process: bindcontrolstoobject

performance and extending the formbinding scheme

conclusion

introduction

one of the most common tasks web developers do over and over is to build a simple form that updates a database table. we create a list page that displays the records in a table and a form page with appropriate form controls for each database field. many developers also use business objects that represent their database tables to organize their code into a multitiered design. if the database table (documents) is represented by a business object (document), many of our forms look something like the code below:

<script runat="server"> protected void page_load(object src, eventargs e) { if (!ispostback) { document document = documents.getdocument(request.querystring["documentid"]); title.text = document.title; active.checked = document.active; createddate.text = document.createddate.tostring(); authorid.findbyvalue(document.authorid.tostring()).selected = true; // ... and so on htmlbody.text = document.htmlbody; } } protected void savebutton_click(object src, eventargs e) { document document = documents.getdocument(request.querystring["documentid"]); document.title = title.text; document.active = active.checked; document.createddate = convert.todatetime(createddate.text); document.authorid = convert.toint32(authorid.selecteditem.value); // ... and so on document.htmlbody = htmlbody.text; documents.update(document); } </script> simplifying and shortening form code

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