Exception Loading A Cursor

Thread View: borland.public.csharpbuilder.graphics

7 messages

[T] Back to Threads [V] Tree View [G] Group Articles

7 total messages Started by Mitch Thu, 21 Sep 2006 16:57

Author: Mitch
Date: Thu, 21 Sep 2006 16:57

16 lines
1389 bytes

I'm creating a DLL Assembly for ArcGIS and I'm getting an exception 
("Value cannot be null." "Parameter name: dataStream") when creating the 
cursor with the following line form an ArcGIS CSharp sample which has 
the same problem.

m_cursor = new 
Cursor(GetType().Assembly.GetManifestResourceStream("GIS_LINK.move.cur"));

I've also tried:

m_cursor = new Cursor(GetType(),"move.cur") ;

The cursor has been added to the project and is valid. Any ideas?

Mitch Wolberg,
RockWare, Inc.

Re: Exception Loading A Cursor

Author: Marc Rohloff TeamB
Date: Thu, 21 Sep 2006 23:22

22 lines
1935 bytes

On Thu, 21 Sep 2006 10:57:24 -0600, Mitch wrote:

> I'm creating a DLL Assembly for ArcGIS and I'm getting an exception 
> ("Value cannot be null." "Parameter name: dataStream") when creating the 
> cursor with the following line form an ArcGIS CSharp sample which has 
> the same problem.
> 
> m_cursor = new 
> Cursor(GetType().Assembly.GetManifestResourceStream("GIS_LINK.move.cur"));
> 
> I've also tried:
> 
> m_cursor = new Cursor(GetType(),"move.cur") ;

>GetType().Assembly.GetManifestResourceStream("GIS_LINK.move.cur")
Is obviously returning null. I suggest that you get a copy of Lutz
Roeder's reflector (it's free) and look at the assembly and see
exactly what has happened to your resources.

-- 
Marc Rohloff [TeamB]
marc rohloff -at- myrealbox -dot- com

Re: Exception Loading A Cursor

Author: Mitch
Date: Fri, 22 Sep 2006 15:56

30 lines
2178 bytes

Marc Rohloff [TeamB] wrote:
> On Thu, 21 Sep 2006 10:57:24 -0600, Mitch wrote:
> 
> 
>>I'm creating a DLL Assembly for ArcGIS and I'm getting an exception 
>>("Value cannot be null." "Parameter name: dataStream") when creating the 
>>cursor with the following line form an ArcGIS CSharp sample which has 
>>the same problem.
>>
>>m_cursor = new 
>>Cursor(GetType().Assembly.GetManifestResourceStream("GIS_LINK.move.cur"));
>>
>>I've also tried:
>>
>>m_cursor = new Cursor(GetType(),"move.cur") ;
> 
> 
>>GetType().Assembly.GetManifestResourceStream("GIS_LINK.move.cur")
> 
> Is obviously returning null. I suggest that you get a copy of Lutz
> Roeder's reflector (it's free) and look at the assembly and see
> exactly what has happened to your resources.
> 
I'll give it a try but I'm pretty new to .NET and not sure what I'll be 
looking for. Is there a "better" (read more reliable) way to add 
resources to a project? I amd some trivial changes to the project and a 
bitmap resource that was being loaded in the same manner no longer 
worked. I see Roeder has a resource editor as well and will look into it.

Mitch

Re: Exception Loading A Cursor

Author: Mitch
Date: Fri, 22 Sep 2006 17:33

8 lines
1555 bytes

Looked at the DLL in the Reflector and the cursor isn't being added. I 
looked at the resource file in Roeder's Resourcer and it doesn't seem to 
recognize the cursor format as its listed as Byte. I tried creating a 
new one in the ImageEditor (D7) but it still comes in as Byte even 
though Windows Explorer recognizes it and can read it. Can I typecast it 
to a cursor?

Mitch

Re: Exception Loading A Cursor

Author: Mitch
Date: Fri, 22 Sep 2006 19:16

12 lines
1659 bytes

Mitch wrote:
> Looked at the DLL in the Reflector and the cursor isn't being added. I 
> looked at the resource file in Roeder's Resourcer and it doesn't seem to 
> recognize the cursor format as its listed as Byte. I tried creating a 
> new one in the ImageEditor (D7) but it still comes in as Byte even 
> though Windows Explorer recognizes it and can read it. Can I typecast it 
> to a cursor?
> 
> Mitch

PS: I can load the Cursor if I do it as a file but this isn't a good 
solution.

Re: Exception Loading A Cursor

Author: Mitch
Date: Fri, 22 Sep 2006 19:52

19 lines
1708 bytes

Semi-solved. I created an rsp file and then added the cursor as:

/res:"C:\ArcGIS Samples\My GIS Link\move.cur",MY_GIS_LINK.move.cur

and then did a command line compile:

C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\csc.exe  /noconfig 
@"C:\ArcGIS Samples\My GIS Link\cmdMY_GIS_LINK.rsp"

For some reason the cursor wasn't added unless it proceeded a bitmap 
resource that I'm also using. And the actual loading code:

m_cursor = new 
Cursor(GetType().Assembly.GetManifestResourceStream("MY_GIS_LINK.move.cur"));

There's got to be an easier way. Maybe I need to buy a copy of VS if I'm 
going to continue doing C# programming.

Mitch

Re: Exception Loading A Cursor

#11

Author: Claude Daneluzzo
Date: Mon, 16 Oct 2006 13:27

24 lines
2094 bytes

Mitch <mitch.ABB@rockware.com> wrote:
>Semi-solved. I created an rsp file and then added the cursor as:
>
>/res:"C:\ArcGIS Samples\My GIS Link\move.cur",MY_GIS_LINK.move.cur
>
>and then did a command line compile:
>
>C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\csc.exe  /noconfig 
>@"C:\ArcGIS Samples\My GIS Link\cmdMY_GIS_LINK.rsp"
>
>For some reason the cursor wasn't added unless it proceeded a bitmap 
>resource that I'm also using. And the actual loading code:
>
>m_cursor = new 
>Cursor(GetType().Assembly.GetManifestResourceStream("MY_GIS_LINK.move.cur"));
>
>There's got to be an easier way. Maybe I need to buy a copy of VS if I'm 
>going to continue doing C# programming.
>
>Mitch

Same problem for me to embed easily image resources in the Principal Assembly with BDS C#.
VS is much better since when you add an image resource you can declare it 'as resource' and it is automatically embedded. Then you load it with GetManifestResourceStream and that's done.

Thread Navigation

This is a paginated view of messages in the thread with full content displayed inline.

Messages are displayed in chronological order, with the original post highlighted in green.

Use pagination controls to navigate through all messages in large threads.

Back to All Threads