.net MVC Controller receive dynamic form field submitted value?

Question

@foreach (var item in b)
{
    itemCount++;
    <input type="hidden" name="class@(itemCount.ToString())" value="@item.CouseClassId" />
    <input type="hidden" name="item@(itemCount.ToString())" value="@item.AnotherId" />
}

and the html will be like:

    <input type="hidden" name="class1" value="123" />
    <input type="hidden" name="item1" value="456" />
    <input type="hidden" name="class2" value="789" />
    <input type="hidden" name="item2" value="1011" />

My Controller:

[HttpPost]
public ActionResult CarAddStudent(object model) {
    return View("Another");
}

In the method's controller, how did I declare the model type and I will receive the dynamic value from Razor?

Your model property names MUSTmatch the names of html input controls, or if you want to have controls with the same name then model takes that with an array matching that name — ermir
– ermir, Commented Dec 16, 2016 at 8:00

king · Accepted Answer · 2016-12-16 08:13:38Z

5

you can use a list to receive them like this

<input type="hidden" name="class[0]" value="123" />
<input type="hidden" name="item[0]" value="456" />
<input type="hidden" name="class[1]" value="789" />
<input type="hidden" name="item[1]" value="1011" />

and your controller:

[HttpPost]
public ActionResult CarAddStudent(List<int> class,List<int> item) {
    return View("Another");
}

by the way, I guess that "class" and "item" are relational, so you may need to use a model list to receive,like this:

<input type="hidden" name="student[0].class" value="123" />
<input type="hidden" name="student[0].item" value="456" />
<input type="hidden" name="student[1].class" value="789" />
<input type="hidden" name="student[1].item" value="1011" />

and then , your receive model should be like this:

[HttpPost]
public ActionResult CarAddStudent(List<Student> student) {
    return View("Another");
}

class and item are the property of the Student Class

edited Dec 16, 2016 at 8:13

answered Dec 16, 2016 at 8:00

king

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1 Comment

user3559349 Over a year ago

You can drop the student prefix. It should be just name="[0].class" etc

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