Why does my convert to bool not work c#

I have an MVC project that has a radio button. Im using a custom input so it looks a bit like this.

<input class="cb_yes" data-val="true" data-val-required="You must select" id="radio_Yes" name="RadioButton" type="radio" value="True"> <span id="radio-yes"></span>Yes</label> <input class="cb_no" data-val="true" data-val-required="You must select" id="radio_No" name="RadioButton" type="radio" value="False"> <span id="radio-no"></span>No</label> 

Notice that the name is the same.

When Yes is clicked, in the browser console I can do

$("input[name='RadioButton']").val() and it came back as True. So far so good.

I'm then doing some C# to convert this value to a c# bool.

I'm doing

IsAlreadyCustomer = Convert.ToBoolean(controllerContext.HttpContext.Request.Form["RadioButton"] == "True");

but it's coming back as false. I'm looking in the "QuickWatch" to test and doing

controllerContext.HttpContext.Request.Form["RadioButton"] == "True" but thats, no suprise, false.

I cant seem to see why it's coming back as false. I dont get why my browser says True but QuickWatch is saying false

Have I wrote it correctly? What am I doing wrong?

Update:

First, I'm declaring a bool, then I try to set the bool to true based on the value of the radio button.

bool IsAlreadyCustomer; //if null then false, else IsAlreadyCustomer = Convert.ToBoolean(controllerContext.HttpContext.Request.Form["RadioButton"] == "True");` `