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c# : AxWebBrowser body background
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\SalesBackGround.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
Hi Richard,
[quoted text, click to view] > <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
Yes i can, once it has been saved as html
[quoted text, click to view] "Robert Jordan" <robertj@gmx.net> wrote in message news:cji3it$dfv$02$1@news.t-online.com... > Hi Richard, > >> <body background='SalesBackGround.jpg'leftmargin='0' marginheight='0' >> marginwidth='0' >> >> Eveything after this statement displays corectly but the body background >> >> if i copy the HTML after runtime to a new file (say in frontpage) and >> preview the html it works perfectly > > Can you preview that HTML file with IE? > > bye > Rob
I have also gone through the DOM and accessed the body.background, this is
blank at runtime I have managed to trick the WebBrowser to load the background by navigating to a html file that has the background image, then i load the dynamic html into the DOM's innerHTML my original plan though, was to have all my images as a embeded resource and load the background depending on the method at runtime ans simply load the HTML into the DOM's innerHTML , i wanted to avoid navigating to a html file as this loads the scrollbars and my application does not call for scroll bars Is this a bug or am i missing something [quoted text, click to view] "Richard Steele" <richard.steele@megwich.com> wrote in message news:OAeOVY4pEHA.3244@tk2msftngp13.phx.gbl... > Yes i can, once it has been saved as html > > > "Robert Jordan" <robertj@gmx.net> wrote in message > news:cji3it$dfv$02$1@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 > >
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 [quoted text, click to view] "Robert Jordan" <robertj@gmx.net> wrote in message news:cjjjta$2fk$03$1@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,
[quoted text, click to view] > 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. [quoted text, click to view] > > 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. [quoted text, click to view] > 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
Robert
will the browser show a warning even if it embedded into a Windows Form? Thanks [quoted text, click to view] "Robert Jordan" <robertj@gmx.net> wrote in message news:cjjmde$81l$00$1@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
[quoted text, click to view]
Hi Richard Steele wrote: [quoted text, click to view] > 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
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 [quoted text, click to view] "Robert Jordan" <robertj@gmx.net> wrote in message news:cjjq38$2hi$01$2@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,
[quoted text, click to view] > 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
Hi Richard,
[quoted text, click to view] > 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
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