Suppose I have two web pages. "Customers.aspx", and "Scheduling.aspx". Suppose I have a textbox control, or a checkbox control on page "Customers.aspx". Suppose these values are named txtCustName, chkAgeGroupBox. I can easily access these two controls from the C# code behind file Customers.aspx.cs. However I need to access these control values from the code behind file "Scheduling.aspx.cs". How can I do that?