Dynamically changing the droplist items

anz · 28th December 2005, 03:58

I'm use Modern UI and InstallOptions. It is needed to change a droplist at current page. MUI_INSTALLOPTIONS_WRITE not works until page refresh through Next-Back. I'd like to do this in form 'a|b|c'.

Afrow UK · 28th December 2005, 12:10

When you mean dynically, do you mean when the user clicks on a button or another control, or while he/she is viewing the page?

-Stu

anz · 29th December 2005, 03:26

On button click

Afrow UK · 29th December 2005, 10:37

In which case, add the Flags=NOTIFY key & value to the button field. See the testnotify.nsi example script in Examples\InstallOptions.

-Stu

anz · 30th December 2005, 06:32

The problem is not in event handling. I can not change the content of droplist at the page after dialog was created. There is no place at the pointed example where items of droplist are changed. But text fields are changed by using "SendMessage WM_SETTEXT". There was an example in this forum where it was suggested to use "SendMessage CB_INSERTSTRING". But that example does not work because of exception.

Afrow UK · 30th December 2005, 15:38

What is the exact code that you have tried?
Are there any compiler warnings generated by the compiler?

-Stu

anz · 4th January 2006, 07:21

Ok. It's works with CB_INSERTSTRING. Exception raised if "STR:" was not specified in SendMessage param.

Thanks for help.

28th December 2005, 03:58	#1
anz Junior Member Join Date: Dec 2005 Posts: 4	Dynamically changing the droplist items I'm use Modern UI and InstallOptions. It is needed to change a droplist at current page. MUI_INSTALLOPTIONS_WRITE not works until page refresh through Next-Back. I'd like to do this in form 'a\|b\|c'.

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28th December 2005, 12:10	#2
Afrow UK Moderator Join Date: Nov 2002 Location: Surrey, England Posts: 8,434	When you mean dynically, do you mean when the user clicks on a button or another control, or while he/she is viewing the page? -Stu

29th December 2005, 03:26	#3
anz Junior Member Join Date: Dec 2005 Posts: 4	On button click

29th December 2005, 10:37	#4
Afrow UK Moderator Join Date: Nov 2002 Location: Surrey, England Posts: 8,434	In which case, add the Flags=NOTIFY key & value to the button field. See the testnotify.nsi example script in Examples\InstallOptions. -Stu

30th December 2005, 06:32	#5
anz Junior Member Join Date: Dec 2005 Posts: 4	The problem is not in event handling. I can not change the content of droplist at the page after dialog was created. There is no place at the pointed example where items of droplist are changed. But text fields are changed by using "SendMessage WM_SETTEXT". There was an example in this forum where it was suggested to use "SendMessage CB_INSERTSTRING". But that example does not work because of exception.

30th December 2005, 15:38	#6
Afrow UK Moderator Join Date: Nov 2002 Location: Surrey, England Posts: 8,434	What is the exact code that you have tried? Are there any compiler warnings generated by the compiler? -Stu

4th January 2006, 07:21	#7
anz Junior Member Join Date: Dec 2005 Posts: 4	Ok. It's works with CB_INSERTSTRING. Exception raised if "STR:" was not specified in SendMessage param. Thanks for help.