Controller action method's model parameter is empty when form submit

Question

I have an action Method ReleasingTheaters in Movie controller, The ReleasingTheaters has two overload one is httpGet which accepts the Movie Id and do stuff and return the Rele

Answer 1

You need to change your foreach to a for loop so that the controls are correctly named and can be bound by the DefaultModelBinder

@for (int i = 0; i < Model.ReleasingTheaters.Count; i++)
{
  @Html.TextBoxFor(m => m.ReleasingTheaters[i].DateFrom)
  ....
}

This will generate inputs such as

<input type="text" name="ReleasingTheaters[0].DateFrom" id="ReleasingTheaters_0__DateFrom" value="?" >
<input type="text" name="ReleasingTheaters[1].DateFrom" id="ReleasingTheaters_1__DateFrom" value="?" >

Note also that you should not be setting the id attribute with new { id = "DateFrom" } etc. The helpers will render a unique id but you are creating duplicate id's which is invalid html