HOW To add css content to the asp.net page header

Jose Saiz

Hi, guys

I've done the following and worked fine

(Inserting the link of the stylesheet.css )

System.Web.UI.HtmlControls.HtmlGenericControl myStyleCss = new System.Web.UI.HtmlControls.HtmlGenericControl("link");

myStyleCss.Attributes.Add("href", "mystyle");

this.Page.Header.Controls.Add(myStyleCss);

This is what I would like to accomplish programatically in C# is to add the content of the css without referencing the link of the stylesheet.css as followed/

System.Web.UI.HtmlControls.HtmlGenericControl myStyleCss = new System.Web.UI.HtmlControls.HtmlGenericControl("style");

myStyleCss.Attributes.Add("type", "text/css");

body {margin: 0px;}

input {font-size: 10pt;}

#div.tag {vertical-align: middle;}

this.Page.Header.Controls.Add(myStyleCss);

Any Idea How to?

TIA

5 Replies

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Francis Susaimichael10y ago
I guess, it should work with Master page also. If not, let us know. Accept the answer which helps you! :)
Jose Saiz10y ago
Great thanks it worked, could I use the same when using masterpage?
Jose Saiz10y ago
Thanks for the reply, I finally got it but my concern is that how to check if style already exist in order not to duplicate coding in the header. Is it possible to check if style already exist before adding? Tia.
Francis Susaimichael10y ago
Hope the below snippet is helpful to you:

              System.Web.UI.HtmlControls.HtmlGenericControl style = new System.Web.UI.HtmlControls.HtmlGenericControl();
            style.TagName = "style";
            style.Attributes.Add("type", "text/css");
            style.InnerHtml = "body{background-color:#000000;} input {background-color:yellow;} ";
            Page.Header.Controls.Add(style);

the above snippet apply "black" color to the entire page and apply "yellow" color for the text box in an "aspx" page.
Arul R10y ago
Hi jose,
Kindly refer the below links, Hope this will solve your problem.
http://www.codeproject.com/Tips/523983/Adding-Styles-Dynamically-to-ASP-NET-Page-Header
http://stackoverflow.com/questions/2943037/adding-stylesheets-programmatically-in-asp-net
http://www.frederikvig.com/2009/08/adding-css-and-javascript-files-dynamically-to-your-asp-net-page/
http://timtrott.co.uk/adding-stylesheets-aspnet/
Let me know for any thing more....
If your problem solved means kindly Accept my answer