Question

I know in PHP we can easily create something like this to handle HTML array elements:

<input name="test[0]" value="1" />
<input name="test[1]" value="2" />
<input name="test[2]" value="3" />

Then in code I can access this as an array:

$arrElements = $_POST['test'];
echo $arrElements[0]; // prints: 1

I have been trying to do the same in ASP.NET (Web Applications). But unfortunately this (also) doesn’t work that easy.

So if i use the same HTML as above, i then tried to do the following in my CodeBehind:

var test = Request.Form.GetValues("test");

But this results in test being null. Is there anyway to handle HTML array elements like i can with PHP?

Answer 1

Change your html :

<input name="test" value="1" />
<input name="test" value="2" />
<input name="test" value="3" />

code behind :

var test = Request.Form.GetValues("test");

And now you will get array of values in test var.

If you can’t change html you can use this code :

var testList = new List<string>();
foreach (string key in Request.Form.AllKeys)
{
    if (key.StartsWith("test[") && key.EndsWith("]"))
    {
        testList.Add(Request.Form[key]);
    }
}