如何在C＃Web应用程序中添加文件上传按钮？

I want to add a file upload button to my web application in Visual Studio using C# in order to allow for the user to browse for a picture on his PC to save it in database. It is like when you want to attach file when you’re sending an email.

我想使用C#在Visual Studio中向我的Web应用程序添加文件上传按钮,以允许用户在PC上浏览图片以将其保存在数据库中。就像您在发送电子邮件时要附加文件一样。

How can I add a file upload button to my website?

如何在我的网站上添加文件上传按钮?

5 个解决方案

#1

Something like

<form method="post" enctype="multipart/form-data" action="http://example.com">
<p>
Please specify a file:<br>
<input type="file" name="myfile">
</p>
<div><input type="submit" value="Send"></div>
</form>

#2

In web application do you mean asp.net ?

在网络应用程序中你的意思是asp.net?

If so, you can use File Upload control.

如果是这样,您可以使用文件上载控件。

<asp:FileUpload ID="FileUpload1" runat="server" />

#3

On client side add this to your form:

在客户端将此添加到您的表单:

<asp:FileUpload ID="FileUpload1" runat="server" />

and on server side write this byte[] to a database field:

并在服务器端将此byte []写入数据库字段:

FileUpload1.FileBytes

#4

use this

<input type="file" name="datafile" size="40">

indside a form.

一个表格。

#5

You can find the basic information on HTML input tag over here. Working example

您可以在此处找到有关HTML输入标记的基本信息。工作实例

#1