Combobox : No Duplicates

[Petrus Vorster]

Hi All

Making progress on learning the new Syntax. Slow but steady!

I am populating a combobox (autocomplete and autodropdown on) with phone numbers.
This is so that if you type the number again, the autocomplete and dropdown will make suggestions.
This works great.

How do I prevent duplicate entries in that combobox?
The phone number is being added to the combobox after you typed phone number and press tab. It is pointless of having a few of the same phone number clogging the control.

Thank you for the patience. A lot of questions still coming.

Regards, Peter

[Zvoni]

The Items-Property of a TComboBox is a TStrings, which has an "IndexOf"-Function
https://lazarus-ccr.sourceforge.io/docs/lcl/stdctrls/tcombobox.html
https://lazarus-ccr.sourceforge.io/docs/rtl/classes/tstrings.indexof.html

Before you add the entry to the ComboBox-Items check if IndexOf of the entered text is greater than -1.
If yes, then it already exists and you skip adding it, if no then add

[Petrus Vorster]

WOW. SO simple!
I would have written an entire loop in Freebasic.

Although I am a complete newby here, I have to admit that although the syntax is strange to me, it is darn powerful. I started here last week and already have a number of processes running.

Great stuff.

-Peter

[jamie]

if you are examining The EDIT line, (TEXT), you can use the POS function which returns a non -1 if the char exists in the string.

 

[Zvoni]

if you are examining The EDIT line, (TEXT), you can use the POS function which returns a non -1 if the char exists in the string.

What's that got to do with TS' issue?