How to disable zooming option in Chart inside OLAP Client?

protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                OlapDataManager olapDataManager = new OlapDataManager(@"<Vaild ConnectionString>");
                this.OlapClient1.OlapDataManager = olapDataManager;
                this.OlapClient1.DataBind();
            }
            this.OlapClient1.OlapChart.ForceLabelReadability = false;
        }

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
                                                If (Not IsPostBack) Then
                                                                Dim olapDataManager As OlapDataManager = New OlapDataManager("<Vaild ConnectionString>")
                                                                Me.OlapClient1.OlapDataManager = olapDataManager
                                                                Me.OlapClient1.DataBind()
                                                End If
                                                Me.OlapClient1.OlapChart.ForceLabelReadability = False
End Sub