how store the values of different pages in to one single table

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ASP.NET

I have a form. Half of the form is on page1.aspx and half on page2.aspx also submit button is on page2.aspx. All i want to do is that when the user click on submit button on page2 the value from page1 and page2 store in a table in database.
i m using model how this code can be modified
protected void btnNext_Click(object sender, EventArgs e)
{
Userinfo objuser = new Userinfo();
objuser.FirstName = FirstName.Text.Trim();
objuser.LastName = LastName.Text.Trim();
objuser.Password = Password.Text.Trim();
objuser.Email = Email.Text.Trim();
objuser.Phone = Convert.ToInt32(Phone.Text);
objuser.Role = ddlrole.SelectedItem.Text.Trim();
Adodata objado = new Adodata();
objado.userdetails(objuser);

Response.Redirect("AddInfo.aspx");
}
}