B4J Question B4J B4XView ComboBox Can't Add Items

[DonRacz]

Getting Message "Unkown member : Items"

How do I add entries into the Combobox with being able to access Items member.

Thank
Don

Private cb1 As B4XView

cb1.Items.AddAll(Array("Off","Steady","Xmas 1","Xmas 2","Help","Flash", "Wave"))

 

[klaus]

If you are speaking of B4XCombobox from the XUI Views library.
Try this:

Private cb1 As B4XComboBox
cb1.Items.cmbBox.AddAll(Array("Off","Steady","Xmas 1","Xmas 2","Help","Flash", "Wave"))

I have not tested it.

 

[William Lancee]

Sorry @klaus. You're always right, but...

    cb1.SetItems(Array("Off","Steady","Xmas 1","Xmas 2","Help","Flash", "Wave"))

 

[DonRacz]

I addedXUI Views to the Libray, used your example

Still does not show "Items" in the list.

I have no doubt I'm missing a step somewhere but I have no Idea what it is.

it compiles fine but I get an error upon execution > java.lang.reflect.InvocationTargetException

 

[William Lancee]

Where do you create the B4XCombox view? It needs to be done in Designer.
Open designer, add custom view, select B4XCombobox, rename to cb1 (press enter), make it taller. Save as "combo".
Select tools, generate members, expand and select B4XCombobox and event.

In B4XMainPage where it says load layout, change name to "combo".
Then use code in post # 3. Don't define bc1 again in code.

If this is new to you, download and review booklets by @klaus.

https://www.b4x.com/android/files/Booklets.zip

 

[klaus]

Without seeing what you have done and how it is impossible to give a concrete advice!
The best way for us to help you would be if you posted a small project showing the problem.

 

[DonRacz]

Where do you create the B4XCombox view? It needs to be done in Designer.
Open designer, add custom view, select B4XCombobox, rename to cb1 (press enter), make it taller. Save as "combo".
Select tools, generate members, expand and select B4XCombobox and event.

In B4XMainPage where it says load layout, change name to "combo".
Then use code in post # 3. Don't define bc1 again in code.

If this is new to you, download and review booklets by @klaus.

https://www.b4x.com/android/files/Booklets.zip

add "custom" view? All I Show is Add View

 

[William Lancee]

drop down list of that shows all views, including custom view, select that and you'll get another list, select B4XCombobox

 

[DonRacz]

drop down list of that shows all views, including custom view, select that and you'll get another list, select B4XCombobox

I'm building a sample project to show the problem.
If I select Select B4XPages as project type,
Custom Views is dimmed out in the Designer drop down.
I added XUI Vies to Library and it shows up....

 

[William Lancee]

You need to check XUI Views library, and perhaps close/reopen designer.

 

[DonRacz]

I'm building a sample project to show the problem.
If I select Select B4XPages as project type,
Custom Views is dimmed out in the Designer drop down.
I added XUI Vies to Library and it shows up....

Got It Working! Thanks for all the help.

Don

 

[William Lancee]

It sounds like you prefer to learn experientially, like I do. The IDE has many helpful features. Don't hesitate to click on things.
You'll get used to the various paradigms quickly. However, I often go back to the booklets by @klaus. They're are a fixed icon on my desktop.
Also I have come to enjoy reading posts on this Forum on a regular basis.

 

[Mahares]

Glad you got it sorted out with Willy's help. Here is more stuff to throw at you:
These 3 variants are equivalent:

Dim cb As Spinner= B4XComboBox2.cmbBox
cb.AddAll(Array("Off","Steady","Xmas 1","Xmas 2","Help","Flash", "Wave"))

Or:

B4XComboBox2.SetItems(Array("Off","Steady","Xmas 1","Xmas 2","Help","Flash", "Wave"))

Or:

B4XComboBox2.cmbBox.As(Spinner).AddAll(Array("Off","Steady","Xmas 1","Xmas 2","Help","Flash", "Wave"))

 

[DonRacz]

Glad you got it sorted out with Willy's help. Here is more stuff to throw at you:
These 3 variants are equivalent:

Dim cb As Spinner= B4XComboBox2.cmbBox
cb.AddAll(Array("Off","Steady","Xmas 1","Xmas 2","Help","Flash", "Wave"))

Or:

B4XComboBox2.SetItems(Array("Off","Steady","Xmas 1","Xmas 2","Help","Flash", "Wave"))

Or:

B4XComboBox2.cmbBox.As(Spinner).AddAll(Array("Off","Steady","Xmas 1","Xmas 2","Help","Flash", "Wave"))

Thanks,
I will give them a shot.

 

[Pelky]

Glad you got it sorted out with Willy's help. Here is more stuff to throw at you:
These 3 variants are equivalent:

Dim cb As Spinner= B4XComboBox2.cmbBox
cb.AddAll(Array("Off","Steady","Xmas 1","Xmas 2","Help","Flash", "Wave"))

Or:

B4XComboBox2.SetItems(Array("Off","Steady","Xmas 1","Xmas 2","Help","Flash", "Wave"))

Or:

B4XComboBox2.cmbBox.As(Spinner).AddAll(Array("Off","Steady","Xmas 1","Xmas 2","Help","Flash", "Wave"))

It is indeed a superb and very useful tool however I do have a problem with it. Having selected an item and then saving it away I want to be able to set the combox to that choice later. I cant find a way to do that. I tried setting the index and setting selected but always comes up with the initial setting. Any ideas?

 

[William Lancee]

Please post this in a new thread, with a small example.

This works here, so there must be other issues.

B4XComboBox1.SetItems(Array("Off","Steady","Xmas 1","Xmas 2","Help","Flash", "Wave"))
B4XComboBox1.SelectedIndex = 2