Html.BeginForm and adding properties

Question

How would I go about adding enctype="multipart/form-data" to a form that is generated by using <% Html.BeginForm(); %>?

score 257 · Accepted Answer · edited Oct 21 '11 at 11:15

257

As part of htmlAttributes,e.g.

Html.BeginForm(
    action, controller, FormMethod.Post, new { enctype="multipart/form-data"})

Or you can pass null for action and controller to get the same default target as for BeginForm() without any parameters:

Html.BeginForm(
    null, null, FormMethod.Post, new { enctype="multipart/form-data"})

edited Oct 21 '11 at 11:15

chiccodoro

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answered Oct 19 '08 at 16:20

liggett78

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Just as a note, you can pass null for action and controller to get the same default target that BeginForm() without parameters gives. – Brad Robinson Sep 13 '10 at 13:26
2

@Brad: Great comment! Incorporated it into the anwer. – chiccodoro Oct 21 '11 at 11:15
hi, how do i specify enctype as Shift-JIS which is japanese encoding format? – Govind Jun 30 '14 at 16:02
I always prefer to specify the action / controller, because the url can be manipulated depending on what you page do, so letting action / controller on null may cause unexpected behaviors. – César León Mar 08 '17 at 20:26

score 19 · Answer 2 · edited Apr 25 '09 at 01:36

19

You can also use the following syntax for the strongly typed version:

<% using (Html.BeginForm<SomeController>(x=> x.SomeAction(), 
          FormMethod.Post, 
          new { enctype = "multipart/form-data" })) 
   { %>

edited Apr 25 '09 at 01:36

Pure.Krome

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answered Nov 20 '08 at 04:15

dp.

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Can't do this in the current version (RC1). – Jason Bunting Feb 19 '09 at 21:54
Which is a massive bummer :( So how can we do this? do we need another dll? MVC futures or something? – Pure.Krome Apr 25 '09 at 01:35
4

Yes, indeed...I believe all of the strongly typed (expression-based) methods are in the futures assembly (http://aspnet.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=24471). – dp. Apr 25 '09 at 08:50
@Jason, dp: Using Nick's extension method, it would be possible to provide that kind of signature, too. Still including futures is certainly a better approach. – chiccodoro Oct 21 '11 at 11:19

score 13 · Answer 3 · edited Oct 15 '13 at 09:02

13

I know this is old but you could create a custom extension if you needed to create that form over and over:

public static MvcForm BeginMultipartForm(this HtmlHelper htmlHelper)
{
    return htmlHelper.BeginForm(null, null, FormMethod.Post, 
     new Dictionary<string, object>() { { "enctype", "multipart/form-data" } });
}

Usage then just becomes

<% using(Html.BeginMultipartForm()) { %>

edited Oct 15 '13 at 09:02

SteveC

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answered Oct 17 '11 at 15:42

Nick Olsen

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Html.BeginForm and adding properties

3 Answers3

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