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.NET Forum / ASP.NET / General / October 2007enctype="multipart/form-data" performance?
I've got quite an already complex form to which I need to add a upload photo facility. I know how to do this but wondered if adding the form tag to include enctype="multipart/form-data" makes a big performance difference to the form when a photo isn't been uploaded? Thanks, Rob. I doubt it, if there isn't any multipart data to encode. -- Peter Recursion: see Recursion site: http://www.eggheadcafe.com unBlog: http://petesbloggerama.blogspot.com BlogMetaFinder: http://www.blogmetafinder.com > I've got quite an already complex form to which I need to add a upload photo > facility. I know how to do this but wondered if adding the form tag to > include enctype="multipart/form-data" makes a big performance difference to > the form when a photo isn't been uploaded? > > Thanks, Rob. > I've got quite an already complex form to which I need to add a upload photo > facility. I know how to do this but wondered if adding the form tag to > include enctype="multipart/form-data" makes a big performance difference to > the form when a photo isn't been uploaded? It won't make a great deal of difference. Certainly by far the biggest cost will the time it takes to send the extra characters over the wire but that'll be small change if occasionally the data contains a photo. If it is a real concern then onsubmit event of the form you could test the photo field value to see if it contains a file name then set the enctype (encoding in JScript on IE) to your prefered type.  SignatureAnthony Jones - MVP ASP/ASP.NET > I've got quite an already complex form to which I need to add a upload > photo facility. I know how to do this but wondered if adding the form tag > to include enctype="multipart/form-data" makes a big performance > difference to the form when a photo isn't been uploaded? None at all. SignatureMark Rae ASP.NET MVP http://www.markrae.net >> difference to the form when a photo isn't been uploaded? > > None at all. Thanks all, I'll give it a go. Cheers, Rob. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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