Android Question How to "get" B4XComboBox

[swabygw]

I have a ScrollView with several B4XComboBox objects on it. I'd like to loop through them and get the selected text. I'm trying:

        Dim obj As Object = ScrollView1.Panel.GetView((i*5)+4)
        Dim cmb As B4XComboBox = obj
        Dim X,Y As String      
        X = cmb.SelectedItem
        Y = cmb.cmbBox.SelectedItem

Both cmb.SelectedItem and cmb.cmbBox.SelectedItem cause errors. I'm think that the first two lines of the code (obj and cmb) are incorrect somehow. Any ideas?

fyi - here's how the comboboxes are initially created:

        Dim cmb As B4XComboBox
        cmb.Initialize("cmb", Null)
        cmb.Tag = "cmb_" & i
        cmb.cmbBox.Initialize("cmbBox")
        cmb.cmbBox.Tag = "cmbBox_" & i
        cmb.cmbBox.TextSize = 12
        cmb.cmbBox.Add("None")
        cmb.cmbBox.Add("Test")
        cmb.SelectedIndex = 0
        ScrollView1.Panel.AddView(cmb.cmbBox, 65%x, ItemHeight * i, ScrollView1.Width, ItemHeight - 1dip)

 

[Alexander Stolte]

Dim cmb As B4XComboBox = ScrollView1.Panel.GetView((i*5)+4).Tag

 

[swabygw]

Dim cmb As B4XComboBox = ScrollView1.Panel.GetView((i*5)+4).Tag

Thanks for replying. That works for getting the Tag. Both lines 4 & 5 of the sample code in original posting still fail, however, for getting the SelectedItem. Or are you recommending that I update the Tag(s) on the SelectedIndexChanged event?

 

[Alexander Stolte]

Provide an example project, if you want further help.

 

[swabygw]

Provide an example project, if you want further help.

Please see attached .zip file.

 

[mangojack]

The B4XCombox has been added to a layout , which is then loaded to the scrollview as needed.

I have commented out the unneeded code.


These 2 threads are relevant if you have not already read them.

[B4X] I need 100 <custom view here>s. How to add programmatically?

Custom views are designed to be added with the designer. It is however very simple to create a layout file with the custom view and load it multiple times. Tip: remove the call to AutoScaleAll from the designer script. Complete example: Sub Globals Private B4XSwitch1 As B4XSwitch End...

www.b4x.com

[B4X] How to get <custom view here> from <CLV or any other container>

This is a common question and for a good reason. Custom views classes are not views by themselves. The views tree only holds views. This means that this code cannot work: Dim B4XFloatTextField1 As B4XFloatTextField = CLV.GetPanel(x).GetView(y) The actual view that is added to the views tree...

www.b4x.com

 

[swabygw]

The B4XCombox has been added to a layout , which is then loaded to the scrollview as needed.

I have commented out the unneeded code.


These 2 threads are relevant if you have not already read them.

[B4X] I need 100 <custom view here>s. How to add programmatically?

Custom views are designed to be added with the designer. It is however very simple to create a layout file with the custom view and load it multiple times. Tip: remove the call to AutoScaleAll from the designer script. Complete example: Sub Globals Private B4XSwitch1 As B4XSwitch End...

www.b4x.com

[B4X] How to get <custom view here> from <CLV or any other container>

This is a common question and for a good reason. Custom views classes are not views by themselves. The views tree only holds views. This means that this code cannot work: Dim B4XFloatTextField1 As B4XFloatTextField = CLV.GetPanel(x).GetView(y) The actual view that is added to the views tree...

www.b4x.com

Well, that was it. Excellent example, thanks. I think I missed those articles because I stopped using b4x for several years (and just started updating an old app this week).