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group:MasterPages and applying CSS to content pages
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all of the pages that might be loaded in my ContentPlaceHolder. The problem is that my <style> tag is getting too large to manage. I have 300 lines of styles in my masterpage and I don't need all of this for every page -- somehow this can't be a smart way of managing styles. How do I programmatically apply styles in my MasterPage based on the ContentPlaceHolder page that's being shown? Or another way to ask it - how do I apply styles to ContentPlaceHolder pages since these pages cannot contain a <header> tag? Thanks for any direction, Mort
Well done! This is exactly the kind of solution I was looking for.
I'm new to MasterPages. Thank you [quoted text, click to view] "Mark Rae [MVP]" <mark@markNOSPAMrae.net> wrote in message
news:#vSB9M5eIHA.4120@TK2MSFTNGP06.phx.gbl... > "Mort Strom" <mail@rocksdream.com> wrote in message > news:89601CD3-9C87-493C-B954-35583BED8A07@microsoft.com... > >> How do I programmatically apply styles in my MasterPage based on the >> ContentPlaceHolder page that's being shown? >> >> Or another way to ask it - how do I apply styles to ContentPlaceHolder >> pages since these pages cannot contain a <header> tag? > > Firstly, make sure you have runat="server" in the MasterPage's header tag > e.g. > > <head runat="server"> > > </head> > > Then, in the PageLoad event of the content page: > > Style objStyle = new Style(); > objStyle.ForeColor = System.Drawing.Color.Yellow; > Header.StyleSheet.CreateStyleRule(objStyle, null, "td"); > > or > > HtmlLink objCSS = new HtmlLink(); > objCSS.Attributes.Add("href", "~/css/DifferentStyle.css"); > objCSS.Attributes.Add("rel", "stylesheet"); > objCSS.Attributes.Add("type", "text/css"); > Header.Controls.Add(objCSS); > > > -- > Mark Rae > ASP.NET MVP > http://www.markrae.net
If objPage1CSS is added to the Header for Content Page1.aspx, then
objPage2CSS added for Content Page2.aspx, will the Header tag retain Page1 & 2 CSS for subsequent pages (page3, page4, etc)? [quoted text, click to view] "Mark Rae [MVP]" <mark@markNOSPAMrae.net> wrote in message
news:#vSB9M5eIHA.4120@TK2MSFTNGP06.phx.gbl... > "Mort Strom" <mail@rocksdream.com> wrote in message > news:89601CD3-9C87-493C-B954-35583BED8A07@microsoft.com... > >> How do I programmatically apply styles in my MasterPage based on the >> ContentPlaceHolder page that's being shown? >> >> Or another way to ask it - how do I apply styles to ContentPlaceHolder >> pages since these pages cannot contain a <header> tag? > > Firstly, make sure you have runat="server" in the MasterPage's header tag > e.g. > > <head runat="server"> > > </head> > > Then, in the PageLoad event of the content page: > > Style objStyle = new Style(); > objStyle.ForeColor = System.Drawing.Color.Yellow; > Header.StyleSheet.CreateStyleRule(objStyle, null, "td"); > > or > > HtmlLink objCSS = new HtmlLink(); > objCSS.Attributes.Add("href", "~/css/DifferentStyle.css"); > objCSS.Attributes.Add("rel", "stylesheet"); > objCSS.Attributes.Add("type", "text/css"); > Header.Controls.Add(objCSS); > > > -- > Mark Rae > ASP.NET MVP > http://www.markrae.net
[quoted text, click to view]
"Mort Strom" <mail@rocksdream.com> wrote in message news:89601CD3-9C87-493C-B954-35583BED8A07@microsoft.com... > Right now the header of my master page contains all of the CSS styles for > all of the pages that might be loaded in my ContentPlaceHolder. The > problem is that my <style> tag is getting too large to manage. I have 300 > lines of styles in my masterpage and I don't need all of this for every > page -- somehow this can't be a smart way of managing styles. > > How do I programmatically apply styles in my MasterPage based on the > ContentPlaceHolder page that's being shown? > > Or another way to ask it - how do I apply styles to ContentPlaceHolder > pages since these pages cannot contain a <header> tag? > > Thanks for any direction, > Mort Mort, I see you've been provided a rather elegant solution, but I'm curious why not use a separate style sheet? The site I'm working on now uses master pages and the style sheet linked to the master is being applied to the content pages without any extra effort. I'm asking because maybe there is something I can learn here.
[quoted text, click to view]
"Mort Strom" <mail@rocksdream.com> wrote in message news:89601CD3-9C87-493C-B954-35583BED8A07@microsoft.com... > How do I programmatically apply styles in my MasterPage based on the > ContentPlaceHolder page that's being shown? > > Or another way to ask it - how do I apply styles to ContentPlaceHolder > pages since these pages cannot contain a <header> tag? Firstly, make sure you have runat="server" in the MasterPage's header tag e.g. <head runat="server"> </head> Then, in the PageLoad event of the content page: Style objStyle = new Style(); objStyle.ForeColor = System.Drawing.Color.Yellow; Header.StyleSheet.CreateStyleRule(objStyle, null, "td"); or HtmlLink objCSS = new HtmlLink(); objCSS.Attributes.Add("href", "~/css/DifferentStyle.css"); objCSS.Attributes.Add("rel", "stylesheet"); objCSS.Attributes.Add("type", "text/css"); Header.Controls.Add(objCSS); -- Mark Rae ASP.NET MVP http://www.markrae.net
[quoted text, click to view] "Mark Rae [MVP]" <mark@markNOSPAMrae.net> wrote in message news:uWYSe86eIHA.5560@TK2MSFTNGP04.phx.gbl... > "BobF" <rNfOrSePeAzMe@charter.net> wrote in message > news:OtCgF26eIHA.2448@TK2MSFTNGP03.phx.gbl... > >> Mort, I see you've been provided a rather elegant solution, but I'm >> curious why not use a separate style sheet? >> >> The site I'm working on now uses master pages and the style sheet linked >> to the master is being applied to the content pages without any extra >> effort. I'm asking because maybe there is something I can learn here. > > The OP had a single style sheet which was being referenced directly in his > MasterPage... However, this single stylesheet was becoming very large, and > not all of the content pages required all of the styles in the sheet... > > Therefore, the solution I suggested allows him to break the stylesheet up > into several more manageable stylesheets which can then be referenced as > necessary by the content pages which need them... > Oh. I thought he had the style code embedded in the master page ... Thanks.
[quoted text, click to view]
"Mort Strom" <mail@rocksdream.com> wrote in message news:35B464D7-0E29-4FBB-A6B1-B4AA52B3AC3D@microsoft.com... > If objPage1CSS is added to the Header for Content Page1.aspx, then > objPage2CSS added for Content Page2.aspx, will the Header tag retain Page1 > & 2 CSS for subsequent pages (page3, page4, etc)? The thing to realise about a MasterPage is that it's not a "page" in the way that an aspx page is a "page" - in fact, a MasterPage is little more than a UserControl... If the good folks who wrote ASP.NET had called them LayoutControls instead of MasterPages, then this would have been obvious... :-) You say that you are new to MasterPages, so maybe you're confusing them with framesets...? They are totally different... When a content page is requested, ASP.NET uses the MasterPage to construct the HTML which will eventually be streamed down to the client - it does this every time... The MasterPage does not remain on screen or in memory when you request a new content page... So, every time you request a content page which needs extra styles, they need to be added every time - that's why the code I gave you needs to go in the content pages' code-behind, not the MasterPage's code-behind... -- Mark Rae ASP.NET MVP http://www.markrae.net
[quoted text, click to view]
"BobF" <rNfOrSePeAzMe@charter.net> wrote in message news:OtCgF26eIHA.2448@TK2MSFTNGP03.phx.gbl... > Mort, I see you've been provided a rather elegant solution, but I'm > curious why not use a separate style sheet? > > The site I'm working on now uses master pages and the style sheet linked > to the master is being applied to the content pages without any extra > effort. I'm asking because maybe there is something I can learn here. The OP had a single style sheet which was being referenced directly in his MasterPage... However, this single stylesheet was becoming very large, and not all of the content pages required all of the styles in the sheet... Therefore, the solution I suggested allows him to break the stylesheet up into several more manageable stylesheets which can then be referenced as necessary by the content pages which need them... -- Mark Rae ASP.NET MVP http://www.markrae.net
Indeed I was confusing MasterPages with framesets and your explanation has
cleared that up. Thanks again for helping bring MasterPages into clearer focus. On my way Mort [quoted text, click to view] "Mark Rae [MVP]" <mark@markNOSPAMrae.net> wrote in message
news:eBgUC66eIHA.5560@TK2MSFTNGP04.phx.gbl... > "Mort Strom" <mail@rocksdream.com> wrote in message > news:35B464D7-0E29-4FBB-A6B1-B4AA52B3AC3D@microsoft.com... > >> If objPage1CSS is added to the Header for Content Page1.aspx, then >> objPage2CSS added for Content Page2.aspx, will the Header tag retain >> Page1 & 2 CSS for subsequent pages (page3, page4, etc)? > > The thing to realise about a MasterPage is that it's not a "page" in the > way that an aspx page is a "page" - in fact, a MasterPage is little more > than a UserControl... If the good folks who wrote ASP.NET had called them > LayoutControls instead of MasterPages, then this would have been > obvious... :-) > > You say that you are new to MasterPages, so maybe you're confusing them > with framesets...? > > They are totally different... > > When a content page is requested, ASP.NET uses the MasterPage to construct > the HTML which will eventually be streamed down to the client - it does > this every time... The MasterPage does not remain on screen or in memory > when you request a new content page... > > So, every time you request a content page which needs extra styles, they > need to be added every time - that's why the code I gave you needs to go > in the content pages' code-behind, not the MasterPage's code-behind... > > > -- > Mark Rae > ASP.NET MVP > http://www.markrae.net
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