I am using Infragistics2.WebUI.UltraWebChart.v7.3(old version) in my core ASP.NET 3.5 application. I am creating 3D pie chart dynamically and adding it to the Panel control but on mouse hover facing a issue where tool tip appears far away from the chart. Here is my code - 

Dim chart As UltraChart = New UltraChart()
Dim series As New NumericSeries()

series.Data.DataSource = proTable
series.Data.ValueColumn = "value"
series.Data.LabelColumn = "Name"
series.DataBind()
chart.Series.Add(series)
chart.ChartType = Infragistics.UltraChart.Shared.Styles.ChartType.PieChart3D
chart.Transform3D.XRotation = 36
chart.Height = Unit.Pixel(400)
chart.Width = Unit.Pixel(400)
chart.PieChart3D.RadiusFactor = 100
chart.PieChart.Labels.LeaderLinesVisible = False
chart.ColorModel.ModelStyle = Infragistics.UltraChart.Shared.Styles.ColorModels.PureRandom
chart.PieChart.Labels.Visible = True
chart.BackColor = Color.Transparent
chart.BorderColor = Color.Transparent

chart.PieChart.Labels.Format = Infragistics.UltraChart.Shared.Styles.PieLabelFormat.ItemLabel
chart.PieChart.Labels.FormatString = "<DATA_VALUE>"

chart.PieChart3D.Labels.Font = New Font("Microsoft Sans Serif", 10, FontStyle.Bold)
chart.Tooltips.Display = Infragistics.UltraChart.Shared.Styles.TooltipDisplay.MouseMove
chart.Tooltips.Format = Infragistics.UltraChart.Shared.Styles.TooltipStyle.Custom
chart.Tooltips.FormatString = "<ITEM_LABEL>"
chart.Tooltips.Overflow = Infragistics.UltraChart.Shared.Styles.TooltipOverflow.ChartArea
chart.Enabled = True
chart.EnableViewState = True

Panel1.Controls.Add(chart)