The parameter 'expression' must evaluate to an ienumerable when multiple selection is allowed.

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Hi,
When I am loading the listbox in edit view after clicking edit link I am getting the exception
" The parameter 'expression' must evaluate to an IEnumerable when multiple selection is allowed"

ASP.NET

<%: Html.ListBoxFor(model => model.PCBECSId,
 new MultiSelectList(ViewData["Selpcba"] as IEnumerable,
 "PCBAId", "ECSPCBAId", ViewData["pcbaDDindex"] as IEnumerable),
 new { id = "Pcbalstbox" })%>

Please help on this to overcome.

What I have tried:

I am writing the code to bind the list box for multi selection as the above mentioned code is working in MVC2 and not working in MVC4

Posted 31-Mar-16 22:15pm

Member 8557048

Updated 1-Apr-16 7:48am

Passion4Code

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Passion4Code · Accepted Answer · 2016-04-01T07:48:00

Solution 1

Hello,

Please see the following SO links. These discussions will surely help.
jquery - ListBoxFor with single selection in asp.net mvc[^]

c# - Getting error at time of binding ListBoxFor control in MVC4[^]

Second link explains better. :)
Thanks

Posted 1-Apr-16 7:48am

Passion4Code

Comments

Member 8557048 25-Apr-16 5:58am

Thanks for your help

Passion4Code 25-Apr-16 8:53am

You are welcome. Accept answer if this has actually helped to solve your problem.