inno setup - How to disable NextButton when file is not selected on InputFilePage (CreateInputFilePage)? -

-

my inno setup program have custom "input file page" created using createinputfilepage.

how can disable nextbutton in page until file path picked user?

in other words, need make nextbutton unclickable while file selection form empty, , clickable when file selection form filled.

thank you.

the easiest way use nextbuttonclick validate inputs , display error message when validation fails.

var   filepage: tinputfilewizardpage;  procedure initializewizard(); begin   filepage := createinputfilepage(wpselectdir, 'caption', 'description', 'sub caption');   filepage.add('prompt', '*.*', '.dat'); end;  function nextbuttonclick(curpageid: integer): boolean; begin   result := true;    if (curpageid = filepage.id) ,      (length(filepage.edits[0].text) = 0)   begin     msgbox('please select file.', mberror, mb_ok);     wizardform.activecontrol := filepage.edits[0];     result := false;   end; end;

if want update "next" button state while input changes, bit more complicated:

procedure filepageeditchange(sender: tobject); begin   wizardform.nextbutton.enabled := (length(tedit(sender).text) > 0); end;  procedure filepageactivate(sender: twizardpage); begin   filepageeditchange(tinputfilewizardpage(sender).edits[0]); end;  procedure initializewizard(); var   page: tinputfilewizardpage;   edit: tedit; begin   page := createinputfilepage(wpselectdir, 'caption', 'description', 'sub caption');   { update next button state when page entered }   page.onactivate := @filepageactivate;    edit := page.edits[page.add('prompt', '*.*', '.dat')];   { update next button state when edit contents changes }   edit.onchange := @filepageeditchange; end;

Comments

Post a Comment

Popular posts from this blog

java - Run spring boot application error: Cannot instantiate interface org.springframework.context.ApplicationListener -

-
i have spring project , try make use spring boot , run @ embadded tomcat following : https://spring.io/guides/gs/rest-service/ this application //@configuration //@enableaspectjautoproxy @springbootapplication @componentscan(basepackages = "gux.prome") public class application { public static void main(string[] args) { springapplication.run(application.class, args); } } if use maven command: mvn spring-boot:run , project starts fine, need debug , run main method @ intelij, exception occurs: exception in thread "main" java.lang.illegalargumentexception: cannot instantiate interface org.springframework.context.applicationlistener : org.springframework.boot.logging.classpathloggingapplicationlistener @ org.springframework.boot.springapplication.createspringfactoriesinstances(springapplication.java:414) @ org.springframework.boot.springapplication.getspringfactoriesinstances(springapplication.java:394) @ org.springframework.bo...
Read more

python - pip wont install .WHL files -

-
when try install .whl gohike typing cmd c:\users\owner\downloads>pip install ta_lib-0.4.9-cp27-none-win_amd64.whl i print out: `processing c:\users\owner\downloads\ta_lib-0.4.9-cp27-none-win_amd64.whl complete output command python setup.py egg_info: traceback <most recent call last>: file "<string>", line 1, in <module> ioerror: [errno 2] no such file or directory:'c:\\users\\owner\\appdata\\lo cal\\temp\\pip-9gwk2c-build\\setup.py' ----------------------------------------- command "python setup.py egg_info" failed error code 1 in c:\users\owner\ap pdata\local\temp\pip-9gwk2c-build\` the part between pip- , -build in pip-9gwk2c-build different on same file. i asked python 2.7.11 pip 8.0.3 can't install gohike whl of ta-lib 0.4.9 few days ago , decided ask differently. can me! you have outdated pip not understand wheels. wheels not supposed have setup.py inside. try upgrading pip pip in...
Read more

Excel VBA "Microsoft Windows Common Controls 6.0 (SP6)" Location Changes -

-
i have excel workbook used generate quotations customers. there main page user inputs data, , there buttons generate various pdfs , send them customer. however, 1 user consistently getting error preventing generating , sending pdfs. i beleive "microsoft windows common controls 6.0 (sp6)". it's installed on users' computers. on mine, location "c:\windows\syswow64\mscomctl.ocx" on others "c:\windows\system32\mscomctl.ocx" the user experiencing issues on 32-bit machine, "mscomctl.ocx" file should in system32. have manually put in there, , pointed common controls reference in vba it. issue seems keep reverting looking in syswow64. since folder doesn't exist, can't find it, , can't produce pdfs. i thought perhaps issue user running older version of office (2007) there users on 2013 , 2016. thought perhaps mixture of 64-bit , 32-bit users. user gets sent workbook other users (as quotation process goes further, gets passed ...
Read more