Hello,
An Error message pops up on exiting the application. Here below is the error message.
System.NullReferenceException: Object reference not set to an instance of an object. at Infragistics.Win.UltraWinChart.IGWinTooltip.AddToControlsCollection(Control controlToAttachTo) at Infragistics.Win.UltraWinChart.IGWinTooltip.topLevel_Paint(Object sender, PaintEventArgs e) at System.Windows.Forms.Control.OnPaint(PaintEventArgs e) at System.Windows.Forms.Form.OnPaint(PaintEventArgs e) at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer, Boolean disposeEventArgs) at System.Windows.Forms.Control.WmPaint(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ScrollableControl.WndProc(Message& m) at System.Windows.Forms.ContainerControl.WndProc(Message& m) at System.Windows.Forms.Form.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
Any idea on this issue ?
There's been several changes made to the tooltip class in the past. Are you using the latest service release? Can you tell me which version of Infragistics you're using? Can you attach a sample project to help reproduce the problem or at least describe how the chart is set up (we're looking for things like, is it in the mdi form, a tab controls, a scrollable control as long as the chart type and the type of data used)
Am using Infragistics version 8.1. The chart is placed within a panel in a user-control, which inturn is placed in a form. It is not a mdi form. The chart type is PieChart and in the chart's Tooltips properties, modified properties like HighlightFillColor and HighlightOutlineColor. If you need any more information, please let me know.
Thanks...
Hi,
Still am getting the "ToolTip" issue, while working in Windows server 2003 R2 (without having visual studio, i.e.. clean state environment).
Can you attach a sample project for me to test this out? I haven't been able to reproduce this otherwise. You can also download the chart's source code and attach it to your application in order to see which instance is throwing the null reference exception, though, you'd have to run the application somewhere with Visual Studio installed.
Hi Rivlin,
Can i get the the latest service release / HotFix for version 8.1?
i have downloaded the service release "NetAdvantage_20081_CLR2X_WIN_SR_2161". Tooltip issue got resolved after upgrading to this service release. Thanq...