1100

Help! - File IO Exception using first UltraWebGauge

Mike posted over 14 years ago

I'm using IG v8.3 CLR35 (vers 8.3.20083.2039)

Have built an ASP.NET application, that heavily uses UltraWebChart (as well as several other controls)

Just starting to design/develop a status dahboard - and REALLY want to use UltraWebGauge!

I dropped an UltraGauge into Designer, and it got confused on which IG Version to use (tried to use UltraWebGauge8.2, etc.)

I fixed the assemblies in the page and web.config -- to be:

@ Register TagPrefix="igGauge" Namespace="Infragistics.WebUI.UltraWebGauge"

Assembly="Infragistics35.WebUI.UltraWebGauge.v8.3, Version=8.3.20083.2039, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"

@ Register TagPrefix="igGaugeProp" Namespace="Infragistics.UltraGauge.Resources"

Assembly="Infragistics35.WebUI.UltraWebGauge.v8.3, Version=8.3.20083.2039, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"

I can design the UltraWebGauge using Designer, and the UltraGaugeDesigner, and it renders nicely in Designer as well.

When I try to viewthe page in the browser, I get the following exception:

Server Error in '/HP.SiteGlance' Application.

The filename, directory name, or volume label syntax is incorrect.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IO.IOException: The filename, directory name, or volume label syntax is incorrect.

Source Error:

[No relevant source lines]

Source File: c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\hp.siteglance\5014c89e\2a2a498d\App_Web_o3x63pgn.4.cs Line: 0

Stack Trace:

[IOException: The filename, directory name, or volume label syntax is incorrect.
]
   System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) +7714920
   System.IO.Directory.InternalGetFileDirectoryNames(String path, String userPathOriginal, String searchPattern, Boolean includeFiles, Boolean includeDirs, SearchOption searchOption) +1923
   System.IO.Directory.GetFiles(String path, String searchPattern, SearchOption searchOption) +37
   Infragistics.WebUI.UltraWebGauge.UltraGauge.DeleteOldImages() +574
   Infragistics.WebUI.UltraWebGauge.UltraGauge.Dispose() +62
   System.Web.UI.Control.UnloadRecursive(Boolean dispose) +269
   System.Web.UI.Control.UnloadRecursive(Boolean dispose) +188
   System.Web.UI.Control.UnloadRecursive(Boolean dispose) +188
   System.Web.UI.Control.UnloadRecursive(Boolean dispose) +188
   System.Web.UI.Control.UnloadRecursive(Boolean dispose) +188
   System.Web.UI.Control.UnloadRecursive(Boolean dispose) +188
   System.Web.UI.Control.UnloadRecursive(Boolean dispose) +188
   System.Web.UI.Control.UnloadRecursive(Boolean dispose) +188
   System.Web.UI.Control.UnloadRecursive(Boolean dispose) +188
   System.Web.UI.Page.UnloadRecursive(Boolean dispose) +23
   System.Web.UI.Page.ProcessRequestCleanup() +43
   System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +242
   System.Web.UI.Page.ProcessRequest() +80
   System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +21
   System.Web.UI.Page.ProcessRequest(HttpContext context) +49
   ASP.status_aspx.ProcessRequest(HttpContext context) in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\hp.siteglance\5014c89e\2a2a498d\App_Web_o3x63pgn.4.cs:0
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +181
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

here's the code behind that I use to define deployment scenario:

(note this exception happens regardless of whether I specified these deployment scenarios...)

ugUpTime.DeploymentScenario.ImageType =

GaugeImageType.Png;

ugUpTime.DeploymentScenario.DeleteOldImages =

true;

ugUpTime.DeploymentScenario.Mode =

ImageDeploymentMode.FileSystem;

ugUpTime.DeploymentScenario.ImageURL =

@"ChartImages/Status_UptimeGauge_#SEQNUM(100).png";

ugUpTime.DeploymentScenario.FilePath =

@"ChartImages";

28496

Offline David Negley posted over 14 years ago

I've never seen that error before, but from a quick google search it seems there might be some invalid characters in your file path. What is the full path to the folder you expect to write your images to?
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Mike posted over 14 years ago in reply to David Negley

On my development mahine, I have no problem with UltraChart images, and they are using the same folder ...

here is thefull path:

D:\subversion\SiteGlance\srcM3\HP.SiteGlance\ChartImages

Using the same source code, a collegue does not see the problem.

I suspect that it may be due to my configuration. Ihave both 8.2 and 8.3 installed on my machine, due to having to maintain an older version of our codebase that runs on 8.2.

It gave me problems adding gauge controls from the toolbox - as it seemed to pull in the 8.2 asemblies - even when i dragged the 8.3 version ito my aspx page...

i am able to continue working by setting

ugTpi.DeploymentScenario.ImageType =

GaugeImageType
.Png;
ugTpi.DeploymentScenario.DeleteOldImages =

false
;
ugTpi.DeploymentScenario.Mode =

ImageDeploymentMode
.FileSystem;
ugTpi.DeploymentScenario.ImageURL =

@"ChartImages/Status_TpiGauge_#SEQNUM(100).png"
;
ugTpi.DeploymentScenario.FilePath =

@"ChartImages"
;

but this is not an option for final product!
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Mike posted over 14 years ago in reply to Mike

the problem is in trying to delete the old images... i even created some images so it could delete them, and same exception is thrown.
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28496

Offline David Negley posted over 14 years ago in reply to Mike

sounds like an issue with permissions... can you run this code and see if you get the same exception? if so, what line of code throws the exception?

    protected void Page_Load(object sender, EventArgs e)
    {
        Bitmap bmp = new Bitmap(25, 25);
        Graphics g = Graphics.FromImage(bmp);
        g.DrawString("Hello", new Font("Arial", 12f), Brushes.Red, PointF.Empty);
        string chartImagesPath = Page.MapPath("ChartImages");
        string filePath = Path.Combine(chartImagesPath, "testImage.png");
        bmp.Save(filePath, ImageFormat.Png);
        Directory.GetFiles(chartImagesPath);
        File.Delete(filePath);
    }
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Mike posted over 14 years ago in reply to David Negley

This code runs fine in my ascx control.
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