How to convert Boolean value to Bit in c#

<script type="text/javascript">

$(document).ready(function () {
$.ajax({
url: 'MYService.asmx/GetID',
type: 'post',
data: { clientid: "<%= Session["clientId"]%>" },
dataType: "json",
success: function (serverdata) {
$('#datatable').dataTable({
data: serverdata,
columns: [
{ 'data': 'ID' },
{ 'data': 'Description' },
{ 'data': 'Deleted' },
]
});
}
});
});



</script>



this is the code from service


public void GetID(int ClientId)
{
string cs = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
List<client> lst = new List<client>();
using (SqlConnection con = new SqlConnection(cs))
{
SqlCommand cmd = new SqlCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "Select [ID], [Description],[Deleted] from [Client] where [ClientId]=@ClientId";
cmd.Parameters.AddWithValue("@ClientId", ClientId);
cmd.Connection = con;
con.Open();
SqlDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
Client client = new Client ();
client.Id = dr["ID"].ToString();
client.Description = dr["Description"].ToString();
client.Deleted = (bool) (dr["Deleted"]);
lst.Add(client);
}

}

JavaScriptSerializer JSS = new JavaScriptSerializer();
Context.Response.Write(JSS.Serialize(lst));
}