On 2017-05-11 00:53, Dong, Eric wrote:
Hi Dev,
I add my comments below.
Thanks,
Eric
-----Original Message-----
From: edk2-devel [mailto:edk2-devel-boun...@lists.01.org] On Behalf Of
dgur...@codeaurora.org
Sent: Thursday, May 11, 2017 4:39 AM
To: edk2-devel@lists.01.org
Subject: [edk2] Convention for creating dynamic HII forms
Hi,
I was wondering if anyone here could provide some clarification on how
to create dynamic HII forms.
Currently I have a Form A with multiple goto statements to Form B.
When the user clicks a goto, my ConfigCallback function will use the
QuestionId to get the data to populate Form B with from a UEFI
variable.
Form B's values appear to be updated when I use HiiSetBrowserData.
However, when I do this I notice that after the user modifies Form B,
the "Configuration Changed" string does not always appear.
[[Eric]] The "Configuration Changed" flag shows up because the
question value has been changed. Browser base on the current question
value and the backup value in the browser to decide whether shows up
this flag.
As a result when I try to save the form, there are no calls made to my
RouteConfig function.
When I enter Form B the internal question values for that form are not
updated with the values. Because of this the form doesn't recognize
when its questions are modified.
I was wondering if anyone has had experience creating form where the
internal question values need to be modified on entry, and what the
common convention was for doing this.
[[Eric]] edkii has a sample driver in
MdeModulePkg/Universal/DriverSampleDxe, you can reference that driver.
If this driver don't has the case you said, you can provide a patch
for this code, and we can base on the code to find the error place.
Thanks,
Dev
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Hi Eric,
Thanks for the response. I've taken a look at DriverSampleDxe in the
past to get an understanding of Hii forms, From what I can tell I don't
think there is a form present there that does what I'm asking for. Any
chance you can point me to a line number or location in that driver that
you think does what I'm trying to do correctly?
-Dev
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