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8 Items, 1 Pages 1 |< << Go >> >|

	caijinjing
	Asp.Net User

masterpage

4/12/2008 5:44:31 PM

0/0

Hi all

I set one picture as the background of masterpage,

but I created a sub-folder in my application, I got one page inherit from master page, the picture on master page does not display ??/

Tongue Tied

	mbanavige
	Asp.Net User

Re: masterpage

4/12/2008 5:52:07 PM

0/0

sounds like your having the same problem as in this thread: http://forums.asp.net/t/1246860.aspx

using a runat=server control with a root relative image path ( ~/ ) should fix you right up.

Mike Banavige
~~~~~~~~~~~~
Dont forget to click "Mark as Answer" on the post that helped you.
This credits that member, earns you a point and marks your thread as Resolved so we will all know you have been helped.

	caijinjing
	Asp.Net User

Re: masterpage

4/12/2008 6:34:42 PM

0/0

Thank you so much

That is the perfect solution to fix this problem

But I need to set the picture as background so that other stuff could display on it

this solution is to display picture not as background. Sad

	mbanavige
	Asp.Net User

Re: masterpage

4/12/2008 8:00:59 PM

0/0

if you are setting a background image, then i would recommend using a stylesheet (css)

the images pulled by a stylesheet can be referred to in that stylesheet relative to where the stylesheet exists in your folder structure. then linking in the stylesheet to your master page would be done in that root relative manner that i referred to.

in this way, your pages can always find the stylesheet regardless of whether the pages are stored in subfolder or not and the stylesheet will pull its images base on where the stylesheet was stored and not based on where the page is being pulled from.

	CharlesF
	Asp.Net User

Re: masterpage

4/12/2008 8:16:58 PM

0/0

Did you try a fully-qualified path in your CSS background image definition?

For example, instead of url(myimage.gif); try url(http://wwwmysite.com/myappdir/images/myimage.gif)

You could also try url(/myappdir/images/myimage.gif) if your app will always be installed in "/myappdir/"

For more info about CSS background images... http://www.w3schools.com/css/pr_background-image.asp

Another option might be to generate the CSS style tag on the fly within your master page onload event. That way you could use ResolveURL and utilize the tilde ~/ in your URL. ResolveURL would resolve it to the correct URL on the fly for each page.

They didn't make it easy to add a style tag (like you can for a script tag) to the <head> section in code-behind though.

One technique I can think of, off the top of my head, is to add the runat="server" and an id="myHead" attributes to the <head> tag.This way you can access the HTMLHead object in your masterpage code behind and then utilize the methods and properties of that class in order to add a <script> tag to it.

The theory is that you would create a new GenericHTMLControl object in code and setting the .TagName property of this generic control object to "style" and then add a "type" attribute by using the .Attributes.Add method... e.g. myhead.Attributes.Add("type","text/css")

I would then dynamically generate the CSS code using a stringbuilder (remembering to use the ResolveURL method when I get to the portion that outputs the CSS code for the URL of the background image). Then I would set the GenericHTMLControl's .InnerHTML property to the stringbuilder.toString() value. e.g. mygenericcontrol.InnerHTML = myStringBuilder.ToString()

Here's an example of what you might put in your masterpages code-behind "onLoad" event: (assuming you've added the id="myHead" and runat="server" to your head tag in design view)

        Dim myStyleTag As HtmlGenericControl = New HtmlGenericControl()
        myStyleTag.TagName = "style"
        myStyleTag.Attributes.Add("type", "text/css")

        Dim mySB As StringBuilder = New StringBuilder()
        mySB.AppendLine("body {")
        mySB.AppendLine("  background-image: url(" & ResolveUrl("~/images/mybackground.gif") & ");")
        mySB.AppendLine("}")
        myStyleTag.InnerHtml = mySB.ToString()

        myhead.Controls.Add(myStyleTag)

-Charles

p.s. If this post provides your answer, please remember to mark it.

	mbanavige
	Asp.Net User

Re: masterpage

4/12/2008 8:28:32 PM

0/0

it doesnt need to get too complicated. imagine the following link in the head section of a masterpage

<link runat="server" 
      id="csslnk1" 
      href="~/MyStyles.css" 
      rel="stylesheet" type="text/css" />

regardless of what page calls for that masterpage, the masterpage can find that stylesheet in the root folder of the web app. you could also use a subfolder too if that's what you prefer.

now lets assume that we have an images subfolder with all our images. Inside the stylesheet, we can add a selector to set the background-image of our page like this:

body {background-image: url(images/myImage.gif);}

since the stylesheet was pulled from the root folder of the app, it can correctly find the images folder. the particular folder that the page is being rendered from is no longer part of the equation. the image path in the css is relative to where the stylesheet was stored.

	CharlesF
	Asp.Net User

Re: masterpage

4/13/2008 6:06:48 AM

0/0

You're right. If you don't need the flexibility to be able to change the image used in your background, your method is easier.

Me, I like to be able to change the background image for various roles, such as administrators. But that's totally a personal preference thing. Wink

-Charles

p.s. If this post provides your answer, please remember to mark it.

	mod84
	Asp.Net User

Re: masterpage

4/13/2008 6:10:27 AM

0/0

thats actually a cool idea. its pretty simple, but would definitely look sharp

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