I'm not sure I understood your question, but your form should look like:
<input name="nome" type="text" />
...
...
<input name="submit" type="submit" class="submit" value="submit" />
and then the code to process the data:
if (submit == "submit")
{
string name = "";
....
name = Request.QueryString["nome"];
....
and then the sql processing
string query = "........','" + name + "')";
SqlCommand cmd = new SqlCommand(query, Conn);
cmd.ExecuteNonQuery();
}
Of course you should adapt to your needs.
There are other ways to retrieve data from forms, but that depends if you are using pure html or .net controls.
For asp.net controls see here:
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.button.click(v=VS.90).aspx[
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