.Net MVC 4 How to get array in Model or from Form Collection on form submit

Question

I am working with .net MVC 4 my problem is I have multiple input control with same name with postfix 0,1,2 like array. I want all of those values in one object or list of object. Controls in my View(Razor,.cshtml) is like below:

<input type="hidden" value="FirstName" name="MyListData[0]" id="MyListDataUnSelected_0_">
<input type="hidden" value="MiddleName" name="MyListData[1]" id="MyListDataUnSelected_1_">
<input type="hidden" value="LastName" name="MyListData[2]" id="MyListDataUnSelected_2_">

and my post method on controller is like:

public ActionResult Index(List<string> MyListData, FormCollection pFormCollection)

in from collection it gives me value of MyListData[0],MyListData[1],... but List MyListData is null. I have one other Page in that same code is applied and in that case I get list of values in MyListData.

I also tried using string[] MyListData but still not work.

How can I get that list in model or from Form Collection.

Just a wild guess. What happens if you remove the pFormCollection argument from the action, and leave only MyListData? — DixonD
– DixonD, Commented Feb 6, 2015 at 6:47
Do you generate your inputs through razor helper @Html.TextBoxFor<>? — MacGyver
– MacGyver, Commented Feb 6, 2015 at 7:12
No, I only used <input> controls because those are created using jquery. — Mehul Patel
– Mehul Patel, Commented Feb 6, 2015 at 8:29
@DixonD if I remove pFormCollection then also MyListData is null only. — Mehul Patel
– Mehul Patel, Commented Feb 6, 2015 at 8:32
Using Firebug or similar, are you able to observe that the values are actually posted? You may also want to try installing Glimpse. — Tieson T.
– Tieson T., Commented Feb 6, 2015 at 8:39

Mehul Patel · Accepted Answer · 2017-08-08 11:07:01Z

3

My current solution is

List<string> lststr=new List<string>();
int i=0;
while(true)
{
    if(pFormCollection["MyListData[" + i + "]"]!=null)
    {
         lststr.add(pFormCollection["MyListData[" + i + "]"]);
         i++;
    }
    else
        break;
}

or in short

List<string> lststr=new List<string>();
int i=0;
while(pFormCollection["MyListData[" + i + "]"]!=null)
{

         lststr.add(pFormCollection["MyListData[" + i + "]"]);
         i++;

}

edited Aug 8, 2017 at 11:07

answered Feb 20, 2015 at 11:10

Mehul Patel

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