Hi,

I am trying to create a test project using your chart control. In spite of the fact that i am using the same code as provided in your samples. chart is not coming. it just shows me a blank page with a little cross mark (like when some picture is missing in a web page, kindly check the attachment). I have created the NevronTemp Folder but still no use..

Kindly Advice.

Regards,

Shahid Kapoor.

 

 

 

Hi,

I got the same problem.

Initially I was having "Nevron .NET Vision Q1 2007 for VS2005" (i will call this 2007 version in the rest of text). It was working fine with all the charts.

Then I was in the need of Gauges, so i installed "Nevron .NET Vision 2009.1 for VS2008" (i will call this 2009 version in the rest of text). when i tried using the DLLS came with the 2009 version, Then i encountered this problem that the chart simply doesn't show up.

I uninstalled 2007 version and i uninstalled 2009 versions. restarted the computer. again installed 2009 version but the same problem is there.

Now i tried back the Dlls from 2007 version and i got charts working but couldn't get the gauges since it is not the part of this version.

when i try to use the 2009 version i cant even get the chart bcoz of the problem specified by Mr. Shahid.

I am using windows xp and VS 2008.

Any suggestion would be highly appreciated.

Hi,

What is the used image acquisition mode - if it is:

nChartControl1.ImageAcquisitionMode = ClientSideImageAcquisitionMode.HttpHandler;

you'll need the following axd handler in the web.config:

<httpHandlers>
<remove verb="*" path="*.asmx"/>
<add verb="*" path="NevronChart.axd" type="Nevron.Chart.WebForm.NChartImageResourceHandler" validate="false"/>
</httpHandlers>

in case of image aquisition mode:

nChartControl1.ImageAcquisitionMode = ClientSideImageAcquisitionMode.TempFile;

The NevronTemp folder should be present under your web applicatoin root as described in the documentation. The easiest way to check what's going on is to view the generated HTML - if there is an img tag with a src attribute pointing to an image file than the image aquisition mode is ClientSideImageAcquisitionMode.TempFile and you need to check whether the ASP.NET account has sufficient priviledges to generate images in the NevronTemp folder (as well as to check whether that folder exists). Otherwise you need to double check the web.config (handlers section).

Best Regards,
Nevron Support Team

Thanks man, it solved my problem..