Can anyone help me
I am developing an application runs on a PC (client) only. For graphical
reasons it was decided that the content would be displayed in a Browser that
is embedded in a Windows Forms application (VS net 2003) c#
I have a Windows Form that uses a webbrowser (AxWebBrowser) )to display
html derived from internal classes that builds data from a database. The
HTML displays correctly. The HTML is built at runtime and the images are
stored locally on the c: drive
The issue i am having is displaying a background JPG using a body background
tag.
for example
<body background='C:\DOCUME~1\user\LOCALS~1\Temp\SalesBa ckGround.jpg'>
i have also tried
<body
background='file:///C:\DOCUME~1\user\LOCALS~1\Temp\SalesBackGround.jpg ;
' leftmargin='0' marginheight='0' marginwidth='0'");
i have also tried copying the image to the executable's path
<body background='SalesBackGround.jpg'leftmargin='0' marginheight='0'
marginwidth='0'
Eveything after this statement displays corectly but the body background
if i copy the HTML after runtime to a new file (say in frontpage) and
preview the html it works perfectly
Can anybody help me
Thank You
Richard
10  2869 
Hi Richard, <body background='SalesBackGround.jpg'leftmargin='0' marginheight='0'
marginwidth='0'
Eveything after this statement displays corectly but the body background
if i copy the HTML after runtime to a new file (say in frontpage) and
preview the html it works perfectly
Can you preview that HTML file with IE?
bye
Rob
Yes i can, once it has been saved as html
"Robert Jordan" <ro*****@gmx.net> wrote in message
news:cj*************@news.t-online.com... Hi Richard,
<body background='SalesBackGround.jpg'leftmargin='0' marginheight='0'
marginwidth='0'
Eveything after this statement displays corectly but the body background
if i copy the HTML after runtime to a new file (say in frontpage) and
preview the html it works perfectly
Can you preview that HTML file with IE?
bye
Rob
I have also gone through the DOM and accessed the body.background, this is
blank at runtime
I have managed to trick the WebBrowser to load the background by navigating
to
a html file that has the background image, then i load the dynamic html into
the DOM's innerHTML
my original plan though, was to have all my images as a embeded resource and
load the background
depending on the method at runtime ans simply load the HTML into the DOM's
innerHTML , i wanted to avoid navigating to a html file
as this loads the scrollbars and my application does not call for scroll
bars
Is this a bug or am i missing something
"Richard Steele" <ri************@megwich.com> wrote in message
news:OA**************@tk2msftngp13.phx.gbl... Yes i can, once it has been saved as html
"Robert Jordan" <ro*****@gmx.net> wrote in message
news:cj*************@news.t-online.com... Hi Richard,
<body background='SalesBackGround.jpg'leftmargin='0' marginheight='0'
marginwidth='0'
Eveything after this statement displays corectly but the body background
if i copy the HTML after runtime to a new file (say in frontpage) and
preview the html it works perfectly
Can you preview that HTML file with IE?
bye
Rob
Hi Richard, I have also gone through the DOM and accessed the body.background, this is
blank at runtime
I have managed to trick the WebBrowser to load the background by navigating
to
a html file that has the background image, then i load the dynamic html into
the DOM's innerHTML
This is not recommended. If you set the document like this,
the browser will put it in some strange security zone.
At least not in the local machine zone.
You should load the HTML from file beacuse it's the less cumbersome
solution.
You can embedd the HTML file as a .NET resource and
extract it at runtime into user's temp folder, for example.
my original plan though, was to have all my images as a embeded resource and
load the background
So how do you want to load those images into the browser?
Using the res:-protocol? This doesn't work with .NET-resources.
It requires Win32-resources which you cannot embed using
Visual Studio.
depending on the method at runtime ans simply load the HTML into the DOM's
innerHTML , i wanted to avoid navigating to a html file
as this loads the scrollbars and my application does not call for scroll
bars
I don't understand what you mean with "does not call for scroll bars".
Do you want to prevent the scrollbars from apearing?
Use [body scroll="no"].
bye
Rob
Robert
thanks for your help
so far i have managed to work out that the browser must have a preloaded
html file as i suppose it must initliaise itself
(sorry i am fairly new to c#, so i dont know the technical term)
The scroll bar question is mute, i have turned them of using the example you
gave me
once the browser has a preloaded file, i am free to change the backgound
image at will, this now works
are you suggesting that i never write the html directly to the innerHTML? or
should i create a HTML file on the fly
and navigate to that instead
Thanks
Richard
"Robert Jordan" <ro*****@gmx.net> wrote in message
news:cj*************@news.t-online.com... Hi Richard,
I have also gone through the DOM and accessed the body.background, this
is blank at runtime
I have managed to trick the WebBrowser to load the background by
navigating to
a html file that has the background image, then i load the dynamic html
into the DOM's innerHTML
This is not recommended. If you set the document like this,
the browser will put it in some strange security zone.
At least not in the local machine zone.
You should load the HTML from file beacuse it's the less cumbersome
solution.
You can embedd the HTML file as a .NET resource and
extract it at runtime into user's temp folder, for example.
my original plan though, was to have all my images as a embeded resource
and load the background
So how do you want to load those images into the browser?
Using the res:-protocol? This doesn't work with .NET-resources.
It requires Win32-resources which you cannot embed using
Visual Studio.
depending on the method at runtime ans simply load the HTML into the
DOM's innerHTML , i wanted to avoid navigating to a html file
as this loads the scrollbars and my application does not call for scroll
bars
I don't understand what you mean with "does not call for scroll bars".
Do you want to prevent the scrollbars from apearing?
Use [body scroll="no"].
bye
Rob
Hi Richard Steele wrote: are you suggesting that i never write the html directly to the innerHTML? or
should i create a HTML file on the fly
and navigate to that instead
The 2nd is recommended way. After you've loaded that local file
you can write directly to body.innerHTML.
BTW, you may wonder why this is required: if you don't
load a local file, the browser assumes the document
is in a special zone, the same zone as "about :blank" or so.
If you mix content from several zones (for example you
have some IFRAME, FRAME oder OBJECT tags) IE will show
a security warning or even worse: it will simply ignore the tags.
So just stick with that local file, even if it's not elegant.
bye
Rob
Robert
will the browser show a warning even if it embedded into a Windows Form?
Thanks
"Robert Jordan" <ro*****@gmx.net> wrote in message
news:cj*************@news.t-online.com... Hi Richard Steele wrote:
are you suggesting that i never write the html directly to the innerHTML?
or should i create a HTML file on the fly
and navigate to that instead
The 2nd is recommended way. After you've loaded that local file
you can write directly to body.innerHTML.
BTW, you may wonder why this is required: if you don't
load a local file, the browser assumes the document
is in a special zone, the same zone as "about:blank" or so.
If you mix content from several zones (for example you
have some IFRAME, FRAME oder OBJECT tags) IE will show
a security warning or even worse: it will simply ignore the tags.
So just stick with that local file, even if it's not elegant.
bye
Rob
Hi Richard, Robert
will the browser show a warning even if it embedded into a Windows Form?
Yes. It depends on the user security setting. Very nasty.
bye
Rob
Thanks Robert, u have been very helpful
i have created a html file with a nice error graphic, that will
be my initial page to navigate to
if anything fails then the user will see a nice graphic (error.htm)
BTW, i have managed to extract the images from my resource file
the issue i was also having was that the original image is a JPEG, when
the image was extracted it tripled in size (i presume it is a BMP)
i managed to find an example of code to convert it back
to a jpg, this now works and the background image gets replaced as per the
spec
do you happen to know if VS2005 will have a webbrowser control (managed
code)
Richard
"Robert Jordan" <ro*****@gmx.net> wrote in message
news:cj*************@news.t-online.com... Hi Richard,
Robert
will the browser show a warning even if it embedded into a Windows Form?
Yes. It depends on the user security setting. Very nasty.
bye
Rob
Hi Richard, do you happen to know if VS2005 will have a webbrowser control (managed
code)
It has, indeed. However, it will have the same flaw: http://msdn2.microsoft.com/library/8bbc4s4h.aspx
When you set the DocumentText property, the WebBrowser
loads about :blank ;-)
bye
Rob This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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