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File Upload Control

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File Upload Control

Shubham Agrawal

Shubham Agrawal

9yAsked Sep 21, 2017, 2:06 AM862.NET

I am using File upload control in asp.net but i dont select any File so i face Error...

string str = FileUpload1.FileName;

FileUpload1.PostedFile.SaveAs(Server.MapPath("~/Upload/" + str));

string Image = "~/Upload/" + str.ToString();

}

2 Replies

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Manas Mohapatra9y ago
You need to validate before request goes to server:

Using javascript:

if(document.getElementById("FileUpload1").value != "") {
   // you have a file
}

Using jQuery:

$(document).ready(function(){
   $('#button').click(function(){
      if($('#FileUpload1').val()=="")
      {
         alert("no file selected!");
         return false;
      }
   });
});

Using rquire field validator:

runat="server" ErrorMessage="your own error message"
ControlToValidate="FileUpload1">

In server side code:

if(FileUpload1.HasFile)
{
   string str = FileUpload1.FileName;
   FileUpload1.PostedFile.SaveAs(Server.MapPath("~/Upload/" + str));
   string Image = "~/Upload/" + str.ToString();
}
Midhun Tp9y ago
Hi,

Just validate if file upload has file before saving -

if(FileUpload1.HasFile)
{
string str = FileUpload1.FileName;
FileUpload1.PostedFile.SaveAs(Server.MapPath("~/Upload/" + str));
string Image = "~/Upload/" + str.ToString();
}