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ejemplo de código asp.net de etiquetas html

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Ejemplo: etiquetas asp.net

The official name is"server-side scripting delimiters"or"ASP.NET inline expressions". Visual Studio 2008 syntax highlighting settings dialog calls these "HTML Server-Side Script". Microsoft guys call them "code nuggets"in their blogs.<%@ %>isa Directive for ASP.NET Web Pages. Used for pages and controls to configure page/control compiler settings (<%@ Control Inherits="MyParentControl"%>).<%@ %>isalso an Application Directive. Used to specify application-specific settings forglobal.asax. Distinct from the page directives asit only uses a different tag set.<%%>isa Code Render Block (forinline code). One of 4 forms of Embedded Code Blocks. Used for inclusion of server-side code to theRender() method (<% x = x +1;%>) of the generated class. Format: single/multiline or multiple-linked (e.g.if/then/else interspersed with html) but cannot be used to declare functions.<%=%>isa Code Render Block (forinline expressions). Used asa shorthand for<%Response.Write(value)%><%:%>(unofficially an "Html Encoding Code Block")isthe same asprevious, but the output isHTML encoded.<%# %>isa Data-binding Expression. Used for one-way (readonly)or two-way (updateable) binding through Eval, Xpath, Bind,or expressions (e.g. the selected value of a drop-down control). Binds expressions to data-bound control properties through the control's attribute markup,orasa separate tag which generates a DataBoundLiteralControl instance with the valueon its Text property. Expressions are evaluated by a DataBinding event handler for the control.<%#:%>isan HTML Encoded Data-Binding Expression (newin ASP.NET 4.5). It combines the functionality of <%# %>and<%:%>.<%$ %>isan ASP.NET Expression Builder. Used for runtime expression binding for control properties through the server tag attributes. Used with AppSettings, ConnectionStrings,or Resources (or your own custom extension,for example to use code-behind properties). These assignments are added to theOnInit() method of the generated class.<%----%>isa Server-Side Comment. Used to exclude the contents from compilation (and so will generate errors if a commented-out control isreferred to in code-behind). Unlike html comments the contents will notbe included in the output.<!-- #Include ...-->isa Server-Side Include Directive. Used to insert the contents of a file intothe page, control orglobal file. Useful wherea user control isoverkill,and a master page cannot be used.
There isalso a Code Declaration Block, the final Embedded Code Block form.<script runat="server">boolIsTrue()returnfalse;</script>
This isused to include additional members (methods etc.) to the classgeneratedfrom the ASP.NET markup. These have only ever been provided "primarily to preserve backward compatibility with older ASP technology"and are not recommended for use.

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