How to get the dropped measure name in OLAP Client?

void OlapClient1_PreRender(object sender, EventArgs e)
        {
            var measureNode = this.Page.Request.Form["__EVENTARGUMENT"];
            if (measureNode != null && measureNode.Contains("TreeNode___" + this.OlapClient1.OlapDataManager.CurrentCubeName + "\\\\Measures"))
            {
                string[] items = measureNode.Split(new string[] { "\\", "_" }, StringSplitOptions.RemoveEmptyEntries);
                foreach (Syncfusion.Olap.Data.Measure measure in this.OlapClient1.OlapDataManager.CurrentCubeSchema.Measures)
                {
                    if (measure.Caption == items[items.Count() - 1])
                    {
                        //// UniqueName of dropped MeasureElement
                        var respectiveUniqueName = measure.UniqueName;
                    }
                }
            }
        }

Private Sub OlapClient1_PreRender(ByVal sender As Object, ByVal e As EventArgs)
   Dim measureNode = Me.Page.Request.Form("__EVENTARGUMENT")
   If measureNode IsNot Nothing AndAlso measureNode.Contains("TreeNode___" & Me.OlapClient1.OlapDataManager.CurrentCubeName & "\\Measures") Then
    Dim items() As String = measureNode.Split(New String() { "\", "_" }, StringSplitOptions.RemoveEmptyEntries)
    For Each measure As Syncfusion.Olap.Data.Measure In Me.OlapClient1.OlapDataManager.CurrentCubeSchema.Measures
     If measure.Caption = items(items.Count() - 1) Then
      '// UniqueName of dropped MeasureElement
      Dim respectiveUniqueName = measure.UniqueName
     End If
    Next measure
   End If
End Sub