Skip to main content

70-562 Themes

Theme applies to on the server side on the aspnet control while css client side by the browser
themes are located in teh app_themes folder and defined in skin folders contained in subfolders of the app_theme name of the folder defines the name of the theme

To make a label skin, you take a control markup(or style it through the UI first) and remove everything that's specific to the single control, because it's going to be reused for all control of that type, but it's possible to created named instances of a theme to apply to one instance of a control it is applied to the page, on the docuemnt(or page object?) object and theme property, can also be set in teh page directive, can also be set at runtime in teh preInit event by setting the Theme or StyleSheetTheme property, allowing the user to pick a theme, if you set in the session vairable is good, Page.Theme = Session{"SelecteTheme"].ToString(); to fill a listbox with themes, you do a DirectoryInfo dirThemes = DirectoryInfo(Server.MapPath("App_Themes")) then set the ddl.DataSource = dirThemes.GetDirectories(); ddlThemes.DataBind(); you can aslo set the ddl.SelectedValue = Page.Theme to show the current theme as default in the ddl.

You can put the selected value in Session["SelectedTheme"] = ddlThemes.SelectedValue; and refresh teh page with Server.Transfer(Request.FilePath); the stylesheettheme property of the page(document?) treats the theme as a stylesheet, normaly a theme overrides properies set at design time the EnableTheming property of any control can be set to false.

For named themes create the theme with a SkinID and set this SkinID on the control, so within a skin file you can have both a default skin for the label control and a one with a SkinID attribute, you can have more than one
control use a the named skin, for any page that uses that theme if you specify an imageUrl of an image button in the theme, the path to the image are always relative to the theme folder. If the theme folder includes a css file, this one is also applied.

A theme can be applied at the site level to the whole site.

Comments

Post a Comment

Popular posts from this blog

React JS Patterns

React JS is always evolving, and evolving quickly. These evolutions can be very significant ones, for example, the addition of hooks. React has a lot of code patterns, often these patterns are motivated by the DRY and/or the open-close principle. These patterns sometimes come in to replace a previous one, yet the previous ones still stays in use, as a consequence, the list of patterns keep growing. The goal of the next few posts will be to list the patterns commonly used in React JS developpement. Some patterns are more specific to JSX and I will start with these, and maybe add patterns specific to Redux.
4 comments
Read more

Rxjs Forkjoin vs Zip

These Rxjs combination operators are handy to make Rest calls in parallel and combine their results. Both take n observables and will return the results, with the difference that forkJoin will complete even if one of the nested observables errors of completes.
Post a Comment
Read more

70-562 Advanced Caching

Advanced Caching can create complex caching policies. SqlCacheDependency, DataSource control support(gets data only when expired), Post Cache Substition.And mutliple caching configuration via web.config, like caching profiles, with different cache per folder. If using the Asp.net development server in visual studio, caching can give weird results, in this case, start with a fresh session of the server by rightlicking it in the taskbar and hit stop to reset it. The output cache being available programmaticaly, it's possible to change it at runtime. And the caching HttpCachePolicy is also accesible for controling cache at run time. Response.Cache.SetCAchebility(...). Objects and code are added with Insert and Add method of the cache object, it just neesd to be casted, just like using an application variable. The main requirement is to check that it exists first incase the cahe expired. Add wont replace if it exists, and has a return value, while insert will always replace ...
Post a Comment
Read more