如何将任何文件保存在数据库中并检索它在imagebutton控件中显示 [英] how to save any file in database and retriving it showing it in imagebutton control

问题描述

我有我的imagebutton控件，上面带有默认图像.我想要的是，当我单击该imagebutton时，我的文件应该从我们的计算机中上传到数据库中，并且应该保存在数据库中，并且也应该被看到在那个imagebutton.for中，我已将代码编写为
插入上载文件值(@ userid，@ file).这是代码，不会给我任何错误，但我不知道我的文件是否确实保存在数据库中，
我已将表数据类型用作userid的"varchar"和用于文件的"image"
但我无法检索该图像并在imagebutton中显示.
我将代码编写为

从表名中选择图像，其中userid = @ id"
while(dr.read())
{
imgbtn = dr ["images"];
}

我也使用了fileupload控件.
通常我的想法是制作一个像项目一样的facebook.用户也可以上传尽可能多的文件，请帮助我提供一个我可以轻松理解的代码.

i have i imagebutton control with a default image on it.what i want that when i click on that imagebutton i file should be uploaded in database from our computer and should be saved on the database,and also should be seen in that imagebutton.for that i have written code as
"insert into uploadfile values (@userid,@file).this is code not giving me any error but i dont know that really my file is being saved in the database, also
i have used table datatype as ''varchar'' for userid and ''image'' for file
but i am not able to retrive that image and show in the imagebutton.
i am writing the code as

"select images from tablename where userid=@id"
while(dr.read())
{
imgbtn=dr["images"];
}

i have also used fileupload control.
atually my idea is to make a facebook like project.also user can upload as many as file please help give me a code which i can understand easily .

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