Q:

Is it somehow possible to transfer date from a RadComboBox to another RadComboBox (Different Page)?

I have 3 different  RadComboBoxs  in one page and the  3 RadComboboxes in another page is it somehow possible to transfer the selected values from the first three Comboboxes to the other Comboboxes (Maybe via URL Javascript ) ?
if you need my code just ask 

A:

for a start Try query string:
in Page1.aspx
in some button click event
Response.Redirect("~/Page2.aspx?id1="+RadComboBox1.SelectedValue+"&id2="+RadComboBox2.SelectedValue)

and
in Page2.aspx
in page load event
string cmb1Value = Request.QueryString["id1"].ToString();
string cmb2Value = Request.QueryString["id2"].ToString();

and bind these values to required comboboxes here as below.
//Use RadComboBox.SelectedIndex
int index1 = RadComboBox1.FindItemIndexByValue(cmb1Value );
RadComboBox1.SelectedIndex = index1;

int index2 = RadComboBox2.FindItemIndexByValue(cmb2Value );
RadComboBox2.SelectedIndex = index2;

