Hi people, there have been a few threads around lately about getting the HTML string from a block / render command on the serverside including:
http://tapestry.1045711.n5.nabble.com/Rendering-components-in-Alerts-td5543434.html http://tapestry.1045711.n5.nabble.com/How-does-MultiZoneUpdateEventResultProcessor-get-a-html-string-from-a-RenderCommand-td5518968.html http://tapestry.1045711.n5.nabble.com/tml-parameter-rendered-into-a-JavaScript-string-td5512889.html I have come up with what I think to be the most elegant solution. Please find below the source for a component which does the following: 1. Takes a count parameter and a render command parameter 2. For each count, updates a "current" property which can be referenced by the render command and adds the render command to the render queue 3. Removes the elements from the DOM in @AfterRender and uses the HTML in a javascript alert Page.html ======= <t:tmlToString t:count="5" t:id="tmlToString"> <p:renderMe> <div>foo ${tmlToString.current} bar</div> </p:renderMe> </t:tmlToString> Page.java ======= @InjectComponent @Property private TmlToString tmlToString; TmlToString.java ============ public class TmlToString { @Parameter @Property private RenderCommand renderMe; @Property @Parameter(defaultPrefix=BindingConstants.LITERAL, required=true) private int count; @Property private int current; @Inject private JavaScriptSupport javaScriptSupport; private Element wrappingDiv; @BeginRender RenderCommand beginRender() { return new RenderCommand() { public void render(MarkupWriter writer, RenderQueue queue) { wrappingDiv = writer.element("div"); List<RenderCommand> commands = new ArrayList<RenderCommand>(); for (int i = 0; i < count; ++ i) { final int finalI = i; commands.add(new RenderCommand() { public void render(MarkupWriter writer2, RenderQueue queue2) { current = finalI; queue2.push(renderMe); } }); } Collections.reverse(commands); for (RenderCommand command : commands) { queue.push(command); } } }; } @AfterRender void afterRender(MarkupWriter writer) { writer.end(); String html = wrappingDiv.getChildMarkup(); wrappingDiv.remove(); javaScriptSupport.addScript("alert(\"%s\")", html); } } Result ====== alert("<div>foo 0 bar</div><div>foo 1 bar</div><div>foo 2 bar</div><div>foo 3 bar</div><div>foo 4 bar</div>"); Cheers, Lance.
