'How to access HTML form input from ASP.NET code behind

I have a basic HTML form that gets inserted into a server side div tag based on how many records exist in the database. This HTML form comes out just fine, and everything looks good. But on my action page I cannot seem to access the input elements from the code behind. I have tried using the Request scope, but I have come up empty on that approach. Any other suggestions?

All of the below suggestions are great, and normally that is what I would do. But these forms are being built on the fly after the page is being compiled, so runat='server' did not do anything for me. It just passed that along to the HTML page.

c++sharpasp.nethtmlforms


Solution 1:[1]

What I'm guessing is that you need to set those input elements to runat="server".

So you won't be able to access the control

<input type="text" name="email" id="myTextBox" />

But you'll be able to work with

<input type="text" name="email" id="myTextBox" runat="server" />

And read from it by using

string myStringFromTheInput = myTextBox.Value;

Solution 2:[2]

It should normally be done with Request.Form["elementName"].

For example, if you have <input type="text" name="email" /> then you can use Request.Form["email"] to access its value.

Solution 3:[3]

The simplest way IMO is to include an ID and runat server tag on all your elements:

<div id="MYDIV" runat="server" />

Since it sounds like these are dynamically inserted controls, you might appreciate FindControl().

Solution 4:[4]

Since you're using ASP.NET code-behind, add an id to the element and runat=server.

You can then reference the objects in the code behind.

Solution 5:[5]

You say you're creating a form dynamically - do you really mean a <form> and its contents, because ASP.NET takes issue with multiple forms on a page and it's already creating one überform for you?

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Community
Solution 2 Gant
Solution 3 Peter Mortensen
Solution 4 Peter Mortensen
Solution 5 Peter Mortensen

Related Questions