Re: combobox height? - C# Discussion Boards

Luc Pattyn4-Mar-10 4:19

Luc Pattyn

4-Mar-10 4:19

I use ComboBox.MaxDropDownItems to choose the maximum number of visible items (max 100!);
you can set ComboBox.DroppedDown to make it show the items.

Smile | :)

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Covean4-Mar-10 4:39

Re: combobox height? [modified]

4-Mar-10 4:39

If I understood you right you mean this:

comboBox1.DroppedDown = true;

Greetings
Covean

Pawan Kiran4-Mar-10 18:49

4-Mar-10 18:49

Hi
Thanks alot.it solves my combobox problem,
but the problem is with Cursor, it shows WaitCursor instead of showing Default Cursor.

Regards,
Pawan.

-- Modified Friday, March 5, 2010 1:26 AM

Covean4-Mar-10 20:41

Re: combobox height? [modified]

4-Mar-10 20:41

I can't reproduce your problem, but you can try this.

Cursor = Cursors.Default;

Greetings
Covean

Pawan Kiran4-Mar-10 21:50

4-Mar-10 21:50

Hi
Working fine, but the problem is with clicks only.

To raise the EventHandlers i need to click the button for twice.

Let me know if u have any idea,

Thanks in advance.

-- Modified Friday, March 5, 2010 3:57 AM

Covean4-Mar-10 22:31

4-Mar-10 22:31

Sorry I do not really understand what you mean.
Which button do you have to click twice?

If you just need that an event should be risen, then just call the event in your formload yourself.

Greetings
Covean

Pawan Kiran4-Mar-10 22:53

4-Mar-10 22:53

I have set the ComboBox DroppedDown Property to true.

Now the actual problem is When the ComboBox DroppedDown is Shown Or True I have to actually click twice to get out of the form or need to click twice to do anything.

For Example in My Form If I have 2 Controls One is ComboBox and Another Button Which Clicked Just Closes the Form. Then I set ComboBox DroppedDown = true.So When the ComboBox DroppedDown = true to click on Close Button I need to click twice to initate click event on the button.

Plz Help me on how to do it once when ComboBox DroppedDown = true.If Combobox DroppedDown = true. I need to click twice to click on the Form as Well.

Covean4-Mar-10 23:14

4-Mar-10 23:14

This is usually not possible, because if the combobox is dropped down it has the mouse capture.
If you set the mouse capture to an other control it directly loses dropped down state.

You maybe can try to redirect all mouse inputs from your combobox to the parent, but I don't
think that this is possible and even if its possible its hard to implement.

Greetings
Covean

Pawan Kiran4-Mar-10 23:45

4-Mar-10 23:45

Hi
One more Question Regarding same combobox.Droppeddown

I have a Treeview1 inside my Combobox1

when i set Combobox.Droppeddown=true

it is not working.

Any Idea Plz let me know..

Covean5-Mar-10 1:06

5-Mar-10 1:06

No sorry I never used a treeview in a combobox.

Greetings
Covean

Pawan Kiran5-Mar-10 1:43

Class Not Registered Error (HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

5-Mar-10 1:43

Thanks alot for your contribution..

Cheers,
Pawan.

Clifford Anup4-Mar-10 3:36

Re: Class Not Registered Error (HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

4-Mar-10 3:36

Hi,

I am building a C# App using Windows Forms. It was working perfectly fine, suddenly there seems to be an System.Runtime.InteropServices.COMException.

The error code was copied to my clip board, here it goes:

System.Runtime.InteropServices.COMException was unhandled
Message="Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))"
Source="System.Windows.Forms"
ErrorCode=-2147221164
StackTrace:
at System.Windows.Forms.UnsafeNativeMethods.CoCreateInstance(Guid& clsid, Object punkOuter, Int32 context, Guid& iid)
at System.Windows.Forms.AxHost.CreateWithoutLicense(Guid clsid)
at System.Windows.Forms.AxHost.CreateWithLicense(String license, Guid clsid)
at System.Windows.Forms.AxHost.CreateInstanceCore(Guid clsid)
at System.Windows.Forms.AxHost.CreateInstance()
at System.Windows.Forms.AxHost.GetOcxCreate()
at System.Windows.Forms.AxHost.TransitionUpTo(Int32 state)
at System.Windows.Forms.AxHost.CreateHandle()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.AxHost.EndInit()
at WordRecoEngine.MainParentForm.InitializeComponent() in E:\Sample C# Codes\02-03-2010\Today(2-3-2010)\ProjectWithMap\WordRecoEngine\(Form1)MainParentForm.Designer.cs:line 81
at WordRecoEngine.MainParentForm..ctor() in E:\Sample C# Codes\02-03-2010\Today(2-3-2010)\ProjectWithMap\WordRecoEngine\(Form1)MainParentForm.cs:line 64
at WordRecoEngine.Program.Main() in E:\Sample C# Codes\02-03-2010\Today(2-3-2010)\ProjectWithMap\WordRecoEngine\Program.cs:line 42
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:

The error is occuring in the following line of my code:

((System.ComponentModel.ISupportInitialize)(this.axShockwaveFlash1)).EndInit();

I don't know how to debug this exception, kindly suggest me a solution as early as possible. I tried dwonloading Flash.ocx and paste it into my System32 Folder, since Visual Studio 2008 indicated that it did not have that file, whenever I opened the project and closed the VS2008 project window. I have the latest version of the Adobe Flash Player installed on my computer. Also, I am using Windows 7 Ultimate x64.

Thanks.

Regards,
Clifford

Dave Kreskowiak4-Mar-10 3:52

Re: Class Not Registered Error (HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

4-Mar-10 3:52

Clifford Anup wrote:
I tried dwonloading Flash.ocx and paste it into my System32 Folder

Doesn't work. You have to run REGSVR32 on it to register the control with the system.

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Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Clifford Anup4-Mar-10 4:40

Re: Class Not Registered Error (HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

4-Mar-10 4:40

I tried what was just posted, however I incurred the following error:

The module "Flash.ocx" was loaded but the call to DllRegisterServer failed with the error code 0x80020009

Md. Marufuzzaman4-Mar-10 6:26

Md. Marufuzzaman

4-Mar-10 6:26

Try to use "RegAsm" command... to reg the "Flash.ocx" to the GAC.

Thanks
Md. Marufuzzaman

I will not say I have failed 1000 times; I will say that I have discovered 1000 ways that can cause failure – Thomas Edison.

Re: Class Not Registered Error (HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

Clifford Anup4-Mar-10 7:55

Re: Class Not Registered Error (HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

4-Mar-10 7:55

"RegAsm" is not recognized as an Internal or Extrenal Command.

Dave Kreskowiak4-Mar-10 8:08

Re: Class Not Registered Error (HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

4-Mar-10 8:08

It also will not work for Flash.OCX.

RegAsm registers .NET assemblies, not COM servers.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Ajcek8414-Nov-10 21:41

Ajcek84

14-Nov-10 21:41

You just need to register Flash.ocx by regsvr32.exe.
RegAsm can be run from Visual Studio Command Prompt (link in Start Menu\Programs\Microsoft Visual Studio 2005\Visual Studio Tools).

Re: Class Not Registered Error (HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

Dave Kreskowiak4-Mar-10 6:54

Re: Class Not Registered Error (HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

4-Mar-10 6:54

You got that error because there are other .DLL files that Flash.ocx depends on that are not present, or not themselves, registered. Now you know why what you did, doesn't work.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Clifford Anup4-Mar-10 7:54

Re: Class Not Registered Error (HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

4-Mar-10 7:54

Firstly, Thanks for all your help and quick replies.
How do I find out, which other DLL's are associated with Flash.ocx?

Dave Kreskowiak4-Mar-10 8:10

Re: Class Not Registered Error (HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

4-Mar-10 8:10

There's a utility on the web called "Dependancy Walker". You can use that to look at the dependancy chain, but you are FAR better off just using the Flash installer.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Clifford Anup4-Mar-10 8:25

Re: Class Not Registered Error (HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

4-Mar-10 8:25

Yeah well, I might as well try that. Cause I just spent a horrowing 2 hours to upgrade my system, because I made some modifications to my Registry which din't go too well, looking into the advises given by some geek on another website for the error code 0x80020009. Thanks again Dave. I really appreciate it.

Now the question is, should I re-install Adobe Flash Player with the latest version again, or should I try some other software. Cause the place where the error is arising is in AxShockwaveFlash, which is just an ActiveX Control?

Dave Kreskowiak4-Mar-10 9:05