nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

COM Class factory error when trying to instantiate an RGBColorClass

DaviKucharski

I have the following code trying to change the selectioncolor property of one of my layers. When it tries the line in red I get the below error. Please help.

Dim pLD1 As ESRI.ArcGIS.Carto.ILayerDescription = mLayerDescs.Element(2)

Dim color As ESRI.ArcGIS.Display.RgbColor = New ESRI.ArcGIS.Display.RgbColorClass
color.Blue = 210
color.Red = 0
color.Green = 0

pLD1.SelectionColor = color

ERROR: Retrieving the COM class factory for component with CLSID {7EE9C496-D123-11D0-8383-080009B996CC} failed due to the following error: 80040154.

Najděte více příspěvků označených jako

Accepted answers

All comments

NeilClemmons_GISinc

You're mixing usage of the managed .NET class and the COM class. You may want to read the section on Interoperating with COM in the developer help for an explanation.

Dim color As ESRI.ArcGIS.Display.RgbColor = New ESRI.ArcGIS.Display.RgbColorClass

Use this (interface type w/ COM class)
Dim color As ESRI.ArcGIS.Display.IRgbColor = New ESRI.ArcGIS.Display.RgbColor

or this (managed .NET class)
Dim color As ESRI.ArcGIS.Display.RgbColorClass = New ESRI.ArcGIS.Display.RgbColorClass

erkansahin

Hi,
my project was produced at vs 2008,arcgis 9.3 and i update it to vs 2010,arcgis 10.1 but this row "IRgpColorClass x=new RgbColoClass " throw exception COM Class factory error when trying to instantiate an RGBColorClass.
i try this codes

Use this (interface type w/ COM class)
Dim color As ESRI.ArcGIS.Display.IRgbColor = New ESRI.ArcGIS.Display.RgbColor

or this (managed .NET class)
Dim color As ESRI.ArcGIS.Display.RgbColorClass = New ESRI.ArcGIS.Display.RgbColorClass

but thats not work.i change x64 to x86 try alot of way but i cant resolve this problem.anybody can help me?

GwenRoyakkers

Have you found a solution for this problem?

I have just ported a visual studio 2010 project to 2012 and now I have the same error.

The code was not changed but i can not compile because the dll won't register.

Microsoft .NET Framework Assembly Registration Utility version 4.0.30319.18408

for Microsoft .NET Framework version 4.0.30319.18408

RegAsm : warning RA0000 : Registering an unsigned assembly with /codebase can ca

use your assembly to interfere with other applications that may be installed on

the same computer. The /codebase switch is intended to be used only with signed

assemblies. Please give your assembly a strong name and re-register it.

RegAsm : error RA0000 : An error occurred inside the user defined Register/Unreg

ister functions: System.TypeInitializationException: The type initializer for 'K

ragtenUtilityToolBar.MeasureAngleBetweenTool' threw an exception. ---> System.Ru

ntime.InteropServices.COMException: Retrieving the COM class factory for compone

nt with CLSID {7EE9C496-D123-11D0-8383-080009B996CC} failed due to the following

error: 80040111 ClassFactory cannot supply requested class (Exception from HRES

ULT: 0x80040111 (CLASS_E_CLASSNOTAVAILABLE)).

The stacktrace points me to the row where I initialize a RgbColorClass.

This code did compile and register for COM Interop in visual studio 2010

Any ideas?

Thanks

nicogis

have you set project x86? have you target framowork 3.5 or 4.0 (see ArcObjects Help for .NET developers for 4.0) ?

GwenRoyakkers

Yes, I had.

But I found the solution to the problem (in my situation).

The RgbColorClass was in a private static field of the the COM Registered class.

I initialized it immediately to a new object with braces.

"private static IRgbColor lineColor = new RgbColorClass() { Red = 255, Green = 217, Blue = 128, UseWindowsDithering = true };"

This is the row of code that did compile, but didn't register.

I Changed it to:

"private IRgbColor lineColor = null;"

And I initialized it in the constructor of the BaseTool:

"lineColor = new RgbColorClass() { Red = 255, Green = 217, Blue = 128, UseWindowsDithering = true };"

Now it did register correctly.

I have absolutely no idea why it didn't register when I initialized the static variable on declaration.

This Tool did compile and register on Arcgis 10.1 with a visual studio 2010 project.

Now on Arcgis 10.2.2 and visual studio 2012 I had to move the initialization to the constructor.

The reason why it was a static var is because the tool always used the same color to show a line.

(it doesn't change at runtime.)

Does anyone have a clue why I had to change this in the code?

It took me quite a while to figure this out, and because I don't know why, I might have the same problem on a different object in the future.

I hope this might help someone else.

Thanks

Připojte se ke konverzaci

Přihlášení členové mohou přispívat, sledovat aktualizace a další. Jste tu noví? Zaregistrujte si bezplatný účet.

Rychlé odkazy

Community Help
Find useful guides, FAQs, and documents to help you navigate and make the most of Esri Community.