Question

Given code is inside a Upload button click.My code of upload file is:

if (this.fuImage.HasFile) //fuImage is id of FileUploader
{   
string fileName=this.fuImage.FileName;
string strSaveLocation = Path.Combine(physicalpath, fileName);
this.fuImage.SaveAs(strSaveLocation);
}

Its work fine.If fuImage has file its save a file on desire location and page is refresh.But if there is not any file and I click a upload button nothing happen no error but page is refresh.I think it is postback issue.Is there any method to prevent to refresh a page if fuImage hasn’t any file.

Note:Uploader and button both are server side control.

Thanks.

Answer 1

You don’t use RequiredFieldValidator to check whether the file upload control has a file or not?