使用N层架构在gridview中显示图像 [英] displaying image in gridview using N-Tier Architecture

问题描述

我正在使用N层架构.我想从数据库显示在gridview中的图像.在这里我有一个疑问.我有一个称为DAL的单独的库.在DAL中，我写了所有从数据库中检索，更新，删除数据的信息.在表示层中，我想在gridview中显示图像，在这里，我要在通用处理程序中创建通用处理程序，我想再次写入从数据库中检索的数据，最后我必须使用context.respose.我可以在这里访问通用处理程序，例如使用DAL检索图像之类的数据，即从DAL访问.

I am using N-Tier Architecture. I want to display images in gridview from database. here i have one doubt. i have separate library called DAL. In DAL i wrote all the retrieving, updating, deleting data from database. here in Presentation Layer I want to display images in gridview here i am creating generic handler ok in generic handler i suppose to write again retriveing data from database and i must use context.respose lastly. here can i access in generic handler like retrieving the data like images using DAL ie., accessing from DAL.

推荐答案

请参阅这些链接..它将为您提供一些想法..

一个简单的数据库查看器-DBViewer http://www.eggheadcafe.com/community/csharp/2/10043896/convert-to-binary-picture.aspx

http://www.eggheadcafe.com/community/csharp/2/10190830/retrieving-image-from-db.aspx

http://www.vbnettutorial.net/?Id=137& Desc = Wpf-Listbox-Image-Binding-From-Db

Refer these links .. it will give you some ideas..

http://www.codeguru.com/csharp/csharp/cs_data/cachingandpeformance/article.php/c15417/Working-with-Binary-Large-Objects-BLOBs-Using-SQL-Server-and-ADONET.htm


A simple Database Viewer - DBViewer


http://www.eggheadcafe.com/community/csharp/2/10043896/convert-to-binary-picture.aspx

http://www.eggheadcafe.com/community/csharp/2/10190830/retrieving-image-from-db.aspx

http://www.vbnettutorial.net/?Id=137&Desc=Wpf-Listbox-Image-Binding-From-Db

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