ازاى استخدم Fileupload

السلام عليكم ورحمة الله وبركاته

الموضوع التالي به مثال مرفق ان شاء الله يفيدك

/index.ph...=189786&hl=

جربيه واخبرينا

ورجاء استخدام البحث قبل طرح المشاركة حتى توفري على نفسك الوقت والانتظار

تمنياتي بالتوفيق

Hi 

try this to save uploaded file in Folder and rename file uploaded and validate uploaded file extension

in this example i upload files in Car_Image folder in my website

check this example with server side :

if (FileUpload1.HasFile == true && FileUpload1.PostedFile != null)
		{
			int _size = 1024;// equal 1 mb
			string _fileExt = System.IO.Path.GetExtension(FileUpload1.FileName);
			if (_fileExt.ToLower() == ".gif" || _fileExt.ToLower() == ".jpg" )
			{
				if (FileUpload1.PostedFile.ContentLength <= _size)
				{
					string CarFile = Guid.NewGuid().ToString() + Path.GetExtension(FileUpload1.FileName);
					FileUpload1.SaveAs(Request.PhysicalApplicationPath + "Car_Image\\" + CarFile);

				}
				else
				{
					FileUpload1.Focus();
					ClientScript.RegisterStartupScript(Type.GetType("System.String"), "messagebox", "<script type=\"text/javascript\">alert('Max file size is 1 m.b');</script>");
				}
			}
			else
			{
				FileUpload1.Focus();
				ClientScript.RegisterStartupScript(Type.GetType("System.String"), "messagebox", "<script type=\"text/javascript\">alert('Only gif or jpg are allowed');</script>");
			}
		}
		else
		{
			//-- if person not has image set default  for him


		}

 Or try this using validation to validate upload file extensions to allow users to upload Gif or Jpeg images only:

try this example to allow user to upload file with Doc extension

<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" 
					ErrorMessage="Only gif file allowed!" 
					ControlToValidate="ctlFileUpload" 
					ValidationExpression="^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w](.)*))+(\.gif|\.GIF)$" 
					Width="510px" CssClass="Validator"></asp:RegularExpressionValidator>


//-----or

<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" 
					ErrorMessage="Only gif file allowed!" 
					ControlToValidate="ctlFileUpload" 
					ValidationExpression="^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))+(.gif|.GIF)$" 
					Width="510px" CssClass="Validator"></asp:RegularExpressionValidator>



//-------or

  <asp:RegularExpressionValidator ID="imgValidator" runat="server" ControlToValidate="imgUpload"
				ErrorMessage="*gif or jpeg files only" ValidationExpression="^.+\.(([jJ][pP][eE]?[gG])|([gG][iI][fF]))$" />

or try this to allow user to upload doc file

<asp:RegularExpressionValidator ID="FileUpLoadValidator" runat="server" ErrorMessage="Only gif files!"
				ValidationExpression=".*(\.gif|\.GIF)$" ControlToValidate="FileUpload1" Display="None">

Hope it helps you