listbox method select()

I would like to set a listbox to show a specific value that may change at run time .Can I preset the list box to display any of the avaiable list choices with the select() method. The help file definition seems like it should do this.'
#handle SELECT(n) - Set the current selection to be the nth item.
or would this just be setting the value in memory.

SELECT(N) will select the item at index N and highlight it, so the user knows, that this is the current selection.

Could you show a simple example, the proper syntax is escaping me.

Tried the example but...


************************
dim colorChoices$(2)
colorChoices$(0) = "red"
colorChoices$(1) = "green"
colorChoices$(2) = "blue"

print "Choose a color and click Accept."

listbox #colors, colorChoices$(), 3
#colors select(1)

print
link #acceptColor, "Accept", [accept]
print
wait

[accept]

'#colors select(1)

print "You chose "; #colors selection$()
print "You chose "; #colors selection()


wait

****************
... not what I was expecting for results and the there is no highlight on any of the list box values as expected.

results
You chose 1
You chose 1

I am confuzzeled.

Also the above was done without making a selectoin from the list.. just clicked accept.

It seems, that there is the second syntax for the select command missing from the help file.

The below code gives the expected result for a list box that uses a string array.


dim colorChoices$(2)
colorChoices$(0) = "red"
colorChoices$(1) = "green"
colorChoices$(2) = "blue"

print "Choose a color and click Accept."

listbox #colors, colorChoices$(), 3
#colors select("green")

print
print "I chose "; #colors selection$()
print "I chose "; #colors selection()
print
link #acceptColor, "Accept", [accept]
print
wait

[accept]
print
print "You chose "; #colors selection$()
print "You chose "; #colors selection()
end


I'm a little late on this but changing this one line on your original code should get the expected result:

#colors select(colorChoices$(1))

where you choose the desired array index number. Prior to that, your code did not clearly show what index 1 was for.
Below is your original code with updated line:

 dim colorChoices$(2)
colorChoices$(0) = "red"
colorChoices$(1) = "green"
colorChoices$(2) = "blue"

print "Choose a color and click Accept."

listbox #colors, colorChoices$(), 3
#colors select(colorChoices$(1))

print
link #acceptColor, "Accept", [accept]
print
wait

[accept]

'#colors select(1)

print "You chose "; #colors selection$()
print "You chose "; #colors selection()


wait

John "Psycho" Siejkowski

Hello All,
I have tried various combinations of the code above, and the code form the help file example, and I cannot get #listbox selection() method to return anything sensible. It will normally return 0, else it returns the last value set with #listbox select(). It is not responsive to user interaction.

Is this method broken? I am using 1.0.1 build 2.44

Colin

SELECTION() is only meant to be used with list boxes containing numerical data.
For list boxes with string data you need to use SELECTION$().

Ok Stefan,

I will revert to my old method of building the listbox array with an index at the start of each element and reading with val(#listbox selection()). Pity though!

Colin

You don't need VAL(), since SELECTION() already returns a number.