complie Errors

[Roger Vale]

Hi all

Visual studio 2005
Visual Basic
windows mobile application

I am getting this from the imediate window A first chance exception of type
'System.InvalidCastException' occurred in System.Drawing.dll

Now the program still runs but this error seems to appear every time i swap
an image from a file

Code i am using is as follows

Dim leftImage As Bitmap
leftImage = New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg")
leftPb.Image = leftImage
I dont know if this is enough information any help would be great

Thanks in advance

Roger

[Newbie Coder]

New Bitmap & you set it to JPG
"Roger Vale" <ro********@btinternet.comwrote in message
news:uy**************@TK2MSFTNGP03.phx.gbl...

Hi all

Visual studio 2005
Visual Basic
windows mobile application

I am getting this from the imediate window A first chance exception of

type

'System.InvalidCastException' occurred in System.Drawing.dll

Now the program still runs but this error seems to appear every time i

swap

an image from a file

Code i am using is as follows

Dim leftImage As Bitmap
leftImage = New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg")
leftPb.Image = leftImage
I dont know if this is enough information any help would be great

Thanks in advance

Roger

[Stephany Young]

You may see this message at when you 'debug' the project in the IDE, but you
will never see it when you compile a project.

When an application is being debugged, the debugger gets notified whenever
an exception is encountered At this point, the application is suspended and
the debugger decides how to handle the exception. The first pass through
this mechanism is called a "first chance" exception. Depending on the
debugger's configuration, it will either resume the application and pass the
exception on or it will leave the application suspended and enter debug
mode. If the application handles the exception, it continues to run
normally.

If the application does not handle the exception, the debugger is
re-notified. This is known as a "second chance" exception. The debugger
again suspends the application and determines how to handle this exception.
Typically, debuggers are configured to stop on second chance (unhandled)
exceptions and debug mode is entered, allowing you to debug.

First chance exception messages most often do not mean there is a problem in
the code. For applications / components which handle exceptions gracefully,
first chance exception messages let the developer know that an exceptional
situation was encountered and was handled.

For code without exception handling, the debugger will receive a second
chance exception notification and will stop with a unhandled exception.

Because you are not getting an unhandled exception, (or if you are you
haven't said so), then you must have some exception handling code that you
ommitted from your post. If that is the case then you have nothing to worry
about.

By the way, are you aware that you can simply that piece of code to:

leftPb.Load(boardImagesPath + CStr(boardPositionP1 - 1) + ".jpg")

or, even better:

leftPb.Load(boardImagesPath & CStr(boardPositionP1 - 1) & ".jpg")
"Roger Vale" <ro********@btinternet.comwrote in message
news:uy**************@TK2MSFTNGP03.phx.gbl...

Hi all

Visual studio 2005
Visual Basic
windows mobile application

I am getting this from the imediate window A first chance exception of
type
'System.InvalidCastException' occurred in System.Drawing.dll

Now the program still runs but this error seems to appear every time i
swap
an image from a file

Code i am using is as follows

Dim leftImage As Bitmap
leftImage = New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg")
leftPb.Image = leftImage
I dont know if this is enough information any help would be great

Thanks in advance

Roger

[Roger Vale]

Thanks for the reply

I am not getting a unhandled reply and i have read that this will not cause
a problem when not running in debug mode.
But it does slow down the application while it runs in debug mode
is there any way to prevent this?

and thanks for the coding advice I did have the code the way you suggested
but have changed it arround to try and remove this first chance error

"Stephany Young" <noone@localhostwrote in message
news:Om**************@TK2MSFTNGP03.phx.gbl...

You may see this message at when you 'debug' the project in the IDE, but
you will never see it when you compile a project.

When an application is being debugged, the debugger gets notified whenever
an exception is encountered At this point, the application is suspended
and the debugger decides how to handle the exception. The first pass
through this mechanism is called a "first chance" exception. Depending on
the debugger's configuration, it will either resume the application and
pass the exception on or it will leave the application suspended and enter
debug mode. If the application handles the exception, it continues to run
normally.

If the application does not handle the exception, the debugger is
re-notified. This is known as a "second chance" exception. The debugger
again suspends the application and determines how to handle this
exception. Typically, debuggers are configured to stop on second chance
(unhandled) exceptions and debug mode is entered, allowing you to debug.

First chance exception messages most often do not mean there is a problem
in the code. For applications / components which handle exceptions
gracefully, first chance exception messages let the developer know that an
exceptional situation was encountered and was handled.

For code without exception handling, the debugger will receive a second
chance exception notification and will stop with a unhandled exception.

Because you are not getting an unhandled exception, (or if you are you
haven't said so), then you must have some exception handling code that you
ommitted from your post. If that is the case then you have nothing to
worry about.

By the way, are you aware that you can simply that piece of code to:

leftPb.Load(boardImagesPath + CStr(boardPositionP1 - 1) + ".jpg")

or, even better:

leftPb.Load(boardImagesPath & CStr(boardPositionP1 - 1) & ".jpg")
"Roger Vale" <ro********@btinternet.comwrote in message
news:uy**************@TK2MSFTNGP03.phx.gbl...

>Hi all

Visual studio 2005
Visual Basic
windows mobile application

I am getting this from the imediate window A first chance exception of
type
'System.InvalidCastException' occurred in System.Drawing.dll

Now the program still runs but this error seems to appear every time i
swap
an image from a file

Code i am using is as follows

Dim leftImage As Bitmap
leftImage = New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg")
leftPb.Image = leftImage
I dont know if this is enough information any help would be great

Thanks in advance

Roger

[Stephany Young]

What slows down the application while it runs in debug mode is the fact that
you're running it in debug mode in the IDE.
"Roger Vale" <ro********@btinternet.comwrote in message
news:e1*************@TK2MSFTNGP02.phx.gbl...

Thanks for the reply

I am not getting a unhandled reply and i have read that this will not
cause a problem when not running in debug mode.
But it does slow down the application while it runs in debug mode
is there any way to prevent this?

and thanks for the coding advice I did have the code the way you suggested
but have changed it arround to try and remove this first chance error

"Stephany Young" <noone@localhostwrote in message
news:Om**************@TK2MSFTNGP03.phx.gbl...

>You may see this message at when you 'debug' the project in the IDE, but
you will never see it when you compile a project.

When an application is being debugged, the debugger gets notified
whenever an exception is encountered At this point, the application is
suspended and the debugger decides how to handle the exception. The first
pass through this mechanism is called a "first chance" exception.
Depending on the debugger's configuration, it will either resume the
application and pass the exception on or it will leave the application
suspended and enter debug mode. If the application handles the exception,
it continues to run normally.

If the application does not handle the exception, the debugger is
re-notified. This is known as a "second chance" exception. The debugger
again suspends the application and determines how to handle this
exception. Typically, debuggers are configured to stop on second chance
(unhandled) exceptions and debug mode is entered, allowing you to debug.

First chance exception messages most often do not mean there is a problem
in the code. For applications / components which handle exceptions
gracefully, first chance exception messages let the developer know that
an exceptional situation was encountered and was handled.

For code without exception handling, the debugger will receive a second
chance exception notification and will stop with a unhandled exception.

Because you are not getting an unhandled exception, (or if you are you
haven't said so), then you must have some exception handling code that
you ommitted from your post. If that is the case then you have nothing to
worry about.

By the way, are you aware that you can simply that piece of code to:

leftPb.Load(boardImagesPath + CStr(boardPositionP1 - 1) + ".jpg")

or, even better:

leftPb.Load(boardImagesPath & CStr(boardPositionP1 - 1) & ".jpg")
"Roger Vale" <ro********@btinternet.comwrote in message
news:uy**************@TK2MSFTNGP03.phx.gbl...

>>Hi all

Visual studio 2005
Visual Basic
windows mobile application

I am getting this from the imediate window A first chance exception of
type
'System.InvalidCastException' occurred in System.Drawing.dll

Now the program still runs but this error seems to appear every time i
swap
an image from a file

Code i am using is as follows

Dim leftImage As Bitmap
leftImage = New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg")
leftPb.Image = leftImage
I dont know if this is enough information any help would be great

Thanks in advance

Roger

[Tom Leylan]

You are loading a bitmap which is fine but the .Image property is of type
Image, try to DirectCast leftImage and the error should go away.
Alternatively (as Stephany pointed out) you can use Load() which takes the
string as a parameter. I doubt that method would result in the same
warning.

leftPb.Image = DirectCast(New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg"), Image)

Tom

"Roger Vale" <ro********@btinternet.comwrote in message
news:uy**************@TK2MSFTNGP03.phx.gbl...

Hi all

Visual studio 2005
Visual Basic
windows mobile application

I am getting this from the imediate window A first chance exception of
type
'System.InvalidCastException' occurred in System.Drawing.dll

Now the program still runs but this error seems to appear every time i
swap
an image from a file

Code i am using is as follows

Dim leftImage As Bitmap
leftImage = New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg")
leftPb.Image = leftImage
I dont know if this is enough information any help would be great

Thanks in advance

Roger

[Roger Vale]

thanks for your reply

I have tried that and there is no change in the error :(

as far as Stephany idea of using load load is not a member of PictureBox
maybe that may throw some more light on the problem

Roger

"Tom Leylan" <tl*****@nospam.netwrote in message
news:uP*************@TK2MSFTNGP03.phx.gbl...

You are loading a bitmap which is fine but the .Image property is of type
Image, try to DirectCast leftImage and the error should go away.
Alternatively (as Stephany pointed out) you can use Load() which takes the
string as a parameter. I doubt that method would result in the same
warning.

leftPb.Image = DirectCast(New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg"), Image)

Tom

"Roger Vale" <ro********@btinternet.comwrote in message
news:uy**************@TK2MSFTNGP03.phx.gbl...

>Hi all

Visual studio 2005
Visual Basic
windows mobile application

I am getting this from the imediate window A first chance exception of
type
'System.InvalidCastException' occurred in System.Drawing.dll

Now the program still runs but this error seems to appear every time i
swap
an image from a file

Code i am using is as follows

Dim leftImage As Bitmap
leftImage = New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg")
leftPb.Image = leftImage
I dont know if this is enough information any help would be great

Thanks in advance

Roger

[Stephany Young]

You're right. The PictureBox.Load method is not exposed in the Compact
Framwork.

I emphasise again that it is nothing to worry about unless it is causing an
unhandled exception to be thrown. If it is then handle it.

The 'first chance' messages only appear when you are in 'debug' and then (as
far as I am aware) only if you are running in the IDE.
"Roger Vale" <ro********@btinternet.comwrote in message
news:ee****************@TK2MSFTNGP06.phx.gbl...

thanks for your reply

I have tried that and there is no change in the error :(

as far as Stephany idea of using load load is not a member of PictureBox
maybe that may throw some more light on the problem

Roger

"Tom Leylan" <tl*****@nospam.netwrote in message
news:uP*************@TK2MSFTNGP03.phx.gbl...

>You are loading a bitmap which is fine but the .Image property is of type
Image, try to DirectCast leftImage and the error should go away.
Alternatively (as Stephany pointed out) you can use Load() which takes
the string as a parameter. I doubt that method would result in the same
warning.

leftPb.Image = DirectCast(New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg"), Image)

Tom

"Roger Vale" <ro********@btinternet.comwrote in message
news:uy**************@TK2MSFTNGP03.phx.gbl...

>>Hi all

Visual studio 2005
Visual Basic
windows mobile application

I am getting this from the imediate window A first chance exception of
type
'System.InvalidCastException' occurred in System.Drawing.dll

Now the program still runs but this error seems to appear every time i
swap
an image from a file

Code i am using is as follows

Dim leftImage As Bitmap
leftImage = New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg")
leftPb.Image = leftImage
I dont know if this is enough information any help would be great

Thanks in advance

Roger

[Roger Vale]

Ok thanks for all the help and assistance

its just very annoying and just for information when I run the application
on the device the firts chance messages still appear.
and it does slow the device.
When I run standalone then you are correct the device runs at normal speed.

Once again thanks for the help

I will continue to watch this group as it appears to be well used and very
helpful

Good luck to all and Happy New Year

Roger

"Stephany Young" <noone@localhostwrote in message
news:%2******************@TK2MSFTNGP03.phx.gbl...

You're right. The PictureBox.Load method is not exposed in the Compact
Framwork.

I emphasise again that it is nothing to worry about unless it is causing
an unhandled exception to be thrown. If it is then handle it.

The 'first chance' messages only appear when you are in 'debug' and then
(as far as I am aware) only if you are running in the IDE.
"Roger Vale" <ro********@btinternet.comwrote in message
news:ee****************@TK2MSFTNGP06.phx.gbl...

>thanks for your reply

I have tried that and there is no change in the error :(

as far as Stephany idea of using load load is not a member of PictureBox
maybe that may throw some more light on the problem

Roger

"Tom Leylan" <tl*****@nospam.netwrote in message
news:uP*************@TK2MSFTNGP03.phx.gbl...

>>You are loading a bitmap which is fine but the .Image property is of
type Image, try to DirectCast leftImage and the error should go away.
Alternatively (as Stephany pointed out) you can use Load() which takes
the string as a parameter. I doubt that method would result in the same
warning.

leftPb.Image = DirectCast(New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg"), Image)

Tom

"Roger Vale" <ro********@btinternet.comwrote in message
news:uy**************@TK2MSFTNGP03.phx.gbl...
Hi all

Visual studio 2005
Visual Basic
windows mobile application

I am getting this from the imediate window A first chance exception of
type
'System.InvalidCastException' occurred in System.Drawing.dll

Now the program still runs but this error seems to appear every time i
swap
an image from a file

Code i am using is as follows

Dim leftImage As Bitmap
leftImage = New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg")
leftPb.Image = leftImage
I dont know if this is enough information any help would be great

Thanks in advance

Roger

[Stephany Young]

When it comes to the Compact Framework there is actually a dedicated
newsgroup:

microsoft.public.dotnet.framework.compactframework

You might get better help there for questions relating to the Compact
Framework.
"Roger Vale" <ro********@btinternet.comwrote in message
news:eY****************@TK2MSFTNGP04.phx.gbl...

Ok thanks for all the help and assistance

its just very annoying and just for information when I run the application
on the device the firts chance messages still appear.
and it does slow the device.
When I run standalone then you are correct the device runs at normal
speed.

Once again thanks for the help

I will continue to watch this group as it appears to be well used and very
helpful

Good luck to all and Happy New Year

Roger

"Stephany Young" <noone@localhostwrote in message
news:%2******************@TK2MSFTNGP03.phx.gbl...

>You're right. The PictureBox.Load method is not exposed in the Compact
Framwork.

I emphasise again that it is nothing to worry about unless it is causing
an unhandled exception to be thrown. If it is then handle it.

The 'first chance' messages only appear when you are in 'debug' and then
(as far as I am aware) only if you are running in the IDE.
"Roger Vale" <ro********@btinternet.comwrote in message
news:ee****************@TK2MSFTNGP06.phx.gbl...

>>thanks for your reply

I have tried that and there is no change in the error :(

as far as Stephany idea of using load load is not a member of PictureBox
maybe that may throw some more light on the problem

Roger

"Tom Leylan" <tl*****@nospam.netwrote in message
news:uP*************@TK2MSFTNGP03.phx.gbl...
You are loading a bitmap which is fine but the .Image property is of
type Image, try to DirectCast leftImage and the error should go away.
Alternatively (as Stephany pointed out) you can use Load() which takes
the string as a parameter. I doubt that method would result in the
same warning.

leftPb.Image = DirectCast(New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg"), Image)

Tom

"Roger Vale" <ro********@btinternet.comwrote in message
news:uy**************@TK2MSFTNGP03.phx.gbl...
Hi all
>
Visual studio 2005
Visual Basic
windows mobile application
>
I am getting this from the imediate window A first chance exception of
type
'System.InvalidCastException' occurred in System.Drawing.dll
>
Now the program still runs but this error seems to appear every time i
swap
an image from a file
>
Code i am using is as follows
>
Dim leftImage As Bitmap
>
>
leftImage = New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg")
leftPb.Image = leftImage
>
>
I dont know if this is enough information any help would be great
>
Thanks in advance
>
Roger
>

[Roger Vale]

Ok Thanks

I have tried there but did not get a reply but once again thanks

Roger

"Stephany Young" <noone@localhostwrote in message
news:Op*************@TK2MSFTNGP03.phx.gbl...

When it comes to the Compact Framework there is actually a dedicated
newsgroup:

microsoft.public.dotnet.framework.compactframework

You might get better help there for questions relating to the Compact
Framework.
"Roger Vale" <ro********@btinternet.comwrote in message
news:eY****************@TK2MSFTNGP04.phx.gbl...

>Ok thanks for all the help and assistance

its just very annoying and just for information when I run the
application on the device the firts chance messages still appear.
and it does slow the device.
When I run standalone then you are correct the device runs at normal
speed.

Once again thanks for the help

I will continue to watch this group as it appears to be well used and
very helpful

Good luck to all and Happy New Year

Roger

"Stephany Young" <noone@localhostwrote in message
news:%2******************@TK2MSFTNGP03.phx.gbl. ..

>>You're right. The PictureBox.Load method is not exposed in the Compact
Framwork.

I emphasise again that it is nothing to worry about unless it is causing
an unhandled exception to be thrown. If it is then handle it.

The 'first chance' messages only appear when you are in 'debug' and then
(as far as I am aware) only if you are running in the IDE.
"Roger Vale" <ro********@btinternet.comwrote in message
news:ee****************@TK2MSFTNGP06.phx.gbl.. .
thanks for your reply

I have tried that and there is no change in the error :(

as far as Stephany idea of using load load is not a member of
PictureBox maybe that may throw some more light on the problem

Roger

"Tom Leylan" <tl*****@nospam.netwrote in message
news:uP*************@TK2MSFTNGP03.phx.gbl...
You are loading a bitmap which is fine but the .Image property is of
type Image, try to DirectCast leftImage and the error should go away.
Alternatively (as Stephany pointed out) you can use Load() which takes
the string as a parameter. I doubt that method would result in the
same warning.
>
leftPb.Image = DirectCast(New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg"), Image)
>
Tom
>
"Roger Vale" <ro********@btinternet.comwrote in message
news:uy**************@TK2MSFTNGP03.phx.gbl.. .
>Hi all
>>
>Visual studio 2005
>Visual Basic
>windows mobile application
>>
>I am getting this from the imediate window A first chance exception
>of type
>'System.InvalidCastException' occurred in System.Drawing.dll
>>
>Now the program still runs but this error seems to appear every time
>i swap
>an image from a file
>>
>Code i am using is as follows
>>
>Dim leftImage As Bitmap
>>
>>
> leftImage = New Bitmap(boardImagesPath +
>CStr(boardPositionP1 - 1) + ".jpg")
> leftPb.Image = leftImage
>>
>>
>I dont know if this is enough information any help would be great
>>
>Thanks in advance
>>
>Roger
>>
>
>

[Tom Leylan]

I can't look up the docs (or test) on the compact framework but you might
check the data type of the Image property on the PictureBox just to make
sure. Take the picture box out of the equation (for testing purposes) and
simply try to cast the Bitmap into an Image (if that is the right datatype).
I've been using .PNG graphics but there is no reason that .JPG shouldn't
work the same.

"Roger Vale" <ro********@btinternet.comwrote in message
news:ee****************@TK2MSFTNGP06.phx.gbl...

thanks for your reply

I have tried that and there is no change in the error :(

as far as Stephany idea of using load load is not a member of PictureBox
maybe that may throw some more light on the problem

Roger

"Tom Leylan" <tl*****@nospam.netwrote in message
news:uP*************@TK2MSFTNGP03.phx.gbl...

>You are loading a bitmap which is fine but the .Image property is of type
Image, try to DirectCast leftImage and the error should go away.
Alternatively (as Stephany pointed out) you can use Load() which takes
the string as a parameter. I doubt that method would result in the same
warning.

leftPb.Image = DirectCast(New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg"), Image)

Tom

"Roger Vale" <ro********@btinternet.comwrote in message
news:uy**************@TK2MSFTNGP03.phx.gbl...

>>Hi all

Visual studio 2005
Visual Basic
windows mobile application

I am getting this from the imediate window A first chance exception of
type
'System.InvalidCastException' occurred in System.Drawing.dll

Now the program still runs but this error seems to appear every time i
swap
an image from a file

Code i am using is as follows

Dim leftImage As Bitmap
leftImage = New Bitmap(boardImagesPath +
CStr(boardPositionP1 - 1) + ".jpg")
leftPb.Image = leftImage
I dont know if this is enough information any help would be great

Thanks in advance

Roger