B4J Question How to pop up a listbox

B4JExplorer · Aug 1, 2017

Hi,

I know how to set the focus to a listbox programmatically, in a UI app.

But how do you expand the listbox/combobox, so that the user can immediately scroll up and down, without having to manually select the listbox?

rwblinn · Aug 1, 2017

Example ComboBox using JavaObject:

B4X:

Private cbItems As ComboBox
cbItems.Items.AddAll(Array("A", "B", "C"))
ComboShowItems(cbItems)

Sub ComboShowItems(cb As ComboBox)
  Dim jo As JavaObject = cb
  jo.RunMethod("show",Null)
End Sub

B4JExplorer · Aug 1, 2017

rwblinn said:

Example ComboBox using JavaObject:

B4X:

Private cbItems As ComboBox
cbItems.Items.AddAll(Array("A", "B", "C"))
ComboShowItems(cbItems)

Sub ComboShowItems(cb As ComboBox)
  Dim jo As JavaObject = cb
  jo.RunMethod("show",Null)
End Sub

Works perfectly, thanks rwblinn.

B4J Question How to pop up a listbox

B4JExplorer

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rwblinn

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B4JExplorer

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B4J Question How to pop up a listbox

B4JExplorer

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rwblinn

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