Only returning one checkbox on postback

[macupryk]

Hi folks, I have a problem with checkboxes.
I am only able to repopulate the firstcheckbox.
For example:
Pets:
Dog
Reptiles
Fish
Birds
Cat

If I select dog and reptiles and do a post back I only get dog checked. Here is my code: private void cblPets_SelectedIndexChanged(object sender, System.EventArgs e)
{
if (cblPets.SelectedItem != null)
{
Session["webform6_cblPets] =
cblPets.SelectedValue;
}
}


private void Page_Load(object sender, System.EventArgs e)
{

if (!IsPostBack)
// Evals true first time browser hits
the page
{
FillcblPets(PetsList);
} // !PostBack

} // PageLoad







private void FillcblPets(DataView data)
{
this.cblPets.DataSource = data;
this.cblPets.DataMember = "title";
this.cblPets.DataTextField = "text";
this.cblPets.DataValueField = "value";
this.cblPets.DataBind();
// restore the selected title (if a user had
already selected a title on a previous page session)
if (Session["webform6_cblPets] !=null)
{
foreach (ListItem item in
this.cblPets.Items)
{
if (item.Value == Session
["webform6_cblPets].ToString())
{

this.cblPets.SelectedIndex = this.cblPets.Items.IndexOf(item);
}
}

}

}


// property delivers the list of Pets
private DataView PetsList
{
get
{
DataSet myDataSet = new DataSet ();

myDataSet.ReadXml(Server.MapPath("PersonalInterest s/Pets.xml"));
return
(myDataSet.Tables["pets].DefaultView);
}
}


I would appreciate if someone could get back to me ASAP.
Take care.