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Hi,

This is probably P.E.B.K.A.C but I'm using the Teechart .Net WebChart. I am accessing a MS SQL 2000 database using Microsofts Enterprise Library data access block. I'm developing on a Windows XP Pro SP2 machine and on the development box everything works as it is designed to.

When I copy the project across to the production Web server, a Windows server 2003 box I get the following things don't work so well. The first time the web page is executed the chart is rendered as it was on the development box. If I then change the date range or any other dynamic aspect of the chart and refresh the page a small red “x” is displayed instead of the chart.

The only way I can render the chart correctly is to click the browser refresh button. After this the apsx page functions correctly.

I'm not sure if this is a Teechart issue as everything works correctly on the development box. Any assistance would be greatly appreciated.

Regards,

Jim

Hi Jim,

Which value have you set at WebChart's TempChart property?

Hi Narcis,

Many thanks for the reply. The TempChart property is set at Session.

I am using the following to store the session state.

if (Session["ch1"]!=null)
{
Session.Remove("ch1");
}

ch1.Export.Template.Save(tmpChart);
Session.Add("ch1",tmpChart);

Regards,

Jim

Hi Jim,

When debugging your project through the code you posted, is the chart present on that code snippet?

Narcis,

Tricky one, everything works OK on the development box. If I copy the entire project over to the WebServer and recompile the project everything works OK while running in the IDE. If I point a client at the ASPX page whether on the server or a remote machine then I encounter the problem described above.

Could it be a permissions issue?

Jim

Hi Jim,

Could it be a permissions issue?

Most likely it is. It could help you having a look at TeeChart tutorials available at TeeChart program group, specially:

Tutorial 9 - ASP.NET Applications.
Tutorial 10 - Walk-through ASP.NET Examples.
Tutorial 17 - Designtime Runtime and License Requirements.

It may also help you having a look at the ASP Server Examples, also included with the installation, and its settings.