B4J Question (Table View) Preventing user from altering column order

MegatenFreak · Jul 8, 2021

Hi.
Is there a way to prevent the user from switching the position of tableview columns?
Normally it wouldn't be a problem, but when I try to retrieve data from textfields inside the table, I retrieve it in as an array object, and if the position is altered, then I'll get the wrong item:

B4X:

Dim row() as Object = MyTable.Items.Get(0)
Dim txf as TextField = row(1)     'The second column is expected to be the textfield, but it will be messed up if the user moves it.

Thanks in advance.

LucaMs · Jul 8, 2021

B4X:

Private Sub DisableReordering(TV As TableView)
    Dim Jo As JavaObject = TV
    Dim Header As JavaObject = Jo.RunMethod("lookup", Array("TableHeaderRow"))
    Dim Prop As JavaObject = Header.RunMethod("reorderingProperty", Null)
    Dim o As Object = Prop.CreateEventFromUI("javafx.beans.value.ChangeListener", "HeaderOrder", Null)
    Prop.RunMethod("addListener",Array(o))
End Sub

MegatenFreak · Jul 8, 2021

LucaMs said:

B4X:

Private Sub DisableReordering(TV As TableView)
    Dim Jo As JavaObject = TV
    Dim Header As JavaObject = Jo.RunMethod("lookup", Array("TableHeaderRow"))
    Dim Prop As JavaObject = Header.RunMethod("reorderingProperty", Null)
    Dim o As Object = Prop.CreateEventFromUI("javafx.beans.value.ChangeListener", "HeaderOrder", Null)
    Prop.RunMethod("addListener",Array(o))
End Sub

It didn't work. But it seems like reordering the columns by the user will not change the node array's structure. So it should be okay.

behnam_tr · Jul 11, 2021

use this lib
its ok

jTableViewExtended

This library extends TableView and provides more control on the columns, rows and cells. What you get with TableView: What you can get with TableViewExtended (with the same data): You can easily enhance an existing TableView by initializing your TableViewExtended with...

www.b4x.com

B4J Question (Table View) Preventing user from altering column order

MegatenFreak

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MegatenFreak

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behnam_tr

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B4J Question (Table View) Preventing user from altering column order

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