> You can use ComponentSource to grab other pages, and then grab components off > of those pages. > I've used this approach for plugin-style apps where the components to use for > a given data type are determined at runtime and can be "plugged-in".
I tried this approach. Is this means I must put all my components in a page. Is their a performance problem if i have many components in one page? How to pass parameter to the component I get in this way. Thanks On Jun 16, 2011, at 2:37 AM, Robert Zeigler wrote: > You can use ComponentSource to grab other pages, and then grab components off > of those pages. > I've used this approach for plugin-style apps where the components to use for > a given data type are determined at runtime and can be "plugged-in". > > Robert > > On Jun 15, 2011, at 6/151:31 PM , Bo Gao wrote: > >> Thanks. >> >>> You can't choose your components at runtime. Although, if you have a >>> set of known components that you want to choose from you can put your >>> components in <t:block> and load the block by id. >> >> >> If there are too many known components, I don't want to put so many >> components in on page. >> >> I have another thought. Can I create a new component, and based on a String >> parameter, render this component as another known component. >> (Like a page forward to another page). >> >> or, is there a way to get an instance of a Component using java code at >> runtime. >> >> >> On Jun 16, 2011, at 1:26 AM, Josh Canfield wrote: >> >>>> I want to use a component in a page, but i don't know which to use, >>>> I only know a String at Runtime, How can I do this. >>> >>> http://tapestry.apache.org/principles.html >>> >>> Principle 1 – Static Structure, Dynamic Behavior >>> >>> You can't choose your components at runtime. Although, if you have a >>> set of known components that you want to choose from you can put your >>> components in <t:block> and load the block by id. >>> >>> >>> <t:delegate to="namedBlock"/><!-- where namedBlock is a page property >>> which returns the block based on your runtime value --> >>> >>> <t:block t:id="circle"><t:drawcircle/></t:block> >>> <t:block t:id="square"><t:drawsquare/></t:block> >>> <t:block t:id="triangle"><t:drawtriangle/></t:block> >>> >>> >>> Josh >>> >>> On Wed, Jun 15, 2011 at 10:20 AM, Bo Gao <eli...@gmail.com> wrote: >>>> I want to use a component in a page, but i don't know which to use, >>>> I only know a String at Runtime, How can I do this. >>>> >>>> I add <div t:type="component1"></div>to a .tml file, "component1" is the >>>> Component Class name. >>>> I try to add a method getComponentName() to the java file, then i can >>>> control which >>>> component to use, but i failed. >>>> >>>> Is their another way to do this? >>>> >>>> Thanks. >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org >>> For additional commands, e-mail: users-h...@tapestry.apache.org >>> >> >> -- >> Bo Gao >> eli...@gmail.com >> >> >> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org >> For additional commands, e-mail: users-h...@tapestry.apache.org >> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > -- Bo Gao eli...@gmail.com --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
