On Mon, Oct 5, 2020, 2:22 PM Thiago H. de Paula Figueiredo < thiag...@gmail.com> wrote:
> On Sun, Oct 4, 2020 at 8:37 AM marwa hussein <marwa.huss...@gmail.com> > wrote: > > > Hi Thiago, > > > > Hello! > > > > Thanks a lot for your reply it works fine but the problem is using this > > line of code in beginRender() function shows the "div" when the page is > > loaded. but What I want is to show the div after a button is pressed. > > > > In this case, just write the same JavaScript you'd do as if you weren't > using Tapestry. > Do you mean to write a JS function and call it from the onSubmit() function and not to use JavaScript support?. > > > > When I used this line of code in the onSubmit() button function it gives > > me "No object of type > > org.apache.tapestry5.services.javascript.JavaScriptSupport is available > > from the Environment" exception!! > > > > JavaScriptSupport is only available when the component is being rendered. > Form submission is not done during rendering, so you get this exception. > > -- > Thiago >
