I solve it ,this error is caursed by the format of the image, firstly i choose the .png, and now i choose bitmap ,it is ok ,thanks

dear narcis
If you are free,help me ,thanks

narcis wrote:Hi durensky,

How are you using WebChart in an Ajax page? Are you using it in an UpdatePanel?

Thanks in advance.

yes, but when I move the mouse in purpose enlarge the chart ,there is error

Hi durensky, zoomedState = ((Steema.TeeChart.Tools.ZoomTool)wChart.Chart.Tools[0]).SetCurrentZoom(Request, zoomedState); the error information is:Parameter is not valid [ TeeChart for .NET v3 supports AJAX and can be used in an UpdatePanel to limit any repaints to that page zone alone. TeeChart als...

hi, I have the problem, when I set a project with ajax.net, and use the example code in it ,there is a error in this code: zoomedState = ((Steema.TeeChart.Tools.ZoomTool)wChart.Chart.Tools[0]).SetCurrentZoom(Request, zoomedState); the error information is:Parameter is not valid so ,please answer me ...