[英]How to upload images only in asp.net
如何在asp.net(FileUploadControl)中仅上传图像,不仅要进行扩展名验证,因为我在用.jpg / .png更改任何文件上传的扩展名时发现了它。
Here's a prototype code that you can use 这是您可以使用的原型代码
if (FileUpload1.HasFile)
{
string extension = System.IO.Path.GetExtension(FileUpload1.FileName);
if (extension == ".jpg")
{
FileUpload1.SaveAs("yourpath" + FileUpload1.FileName);
}
else
{
Response.Write("Only .Jpg allowed");
}
}
You can add .PNG,.bmp also.. if u want 您也可以添加.PNG,.bmp。
use ajax file upload..!! 使用ajax文件上传..! then save the file name in the database..!!
然后将文件名保存在数据库中。
could get the extension "System.IO.Path.GetExtension(AsyncFileUpload1.PostedFile.FileName)" 可以获取扩展名“ System.IO.Path.GetExtension(AsyncFileUpload1.PostedFile.FileName)”
refer this link..!! 请参阅此链接..!
http://www.aspsnippets.com/Articles/Using-ASP.Net-AJAX-Control-Toolkits-AsyncFileUpload-Control.aspx http://www.aspsnippets.com/Articles/Using-ASP.Net-AJAX-Control-Toolkits-AsyncFileUpload-Control.aspx
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