Question

I have asp.net page (Form = runat server )

2 textboxes:

<input type="text" id="tb1" />
<asp:TextBox ID="tb2" runat="server" />

and a button submit.

However when I put some values in them – and press the button – Only tb2 is getting back its value from the server.

I thought that inputs fields values are going from client to server and back always !

in what event ( in page life cycle) Does tb1 lose its value ?

Answer 1

The POST will contain information entered in tb1 – so it can be read from the Request

if you change it to

<input type="text" id="tb1"  runat="server" /> 

it will work as you want.

without the runat=server it does not “lose” its value – it will never be populated – ever, because it is simply data in the POST and not connected to a server side control.

one final point – to explicitly answer some of your comments – the POST data is processed just before the PreLoad event – this can be found from http://msdn.microsoft.com/en-us/library/ms178472.aspx