Set number of DialogComponentBoolean in model class

Node Development
1

Hello every one, 

I am a beginner in knime and I can not manipulate the components in a dialog, in fact I want to insert several checkboxes and the number of these checkboxes is related to the number of columns of the input file. So I thought that the code is done in modelNode but I did not know how to do it.
Someone can help me !!!
Thank you
2

Sounds like you want to select columns in your dialog which should be processed by your node? In that case, I would suggest to have a look at KNIME's standard components which provide a ready to use column filter instead of building your own: 

org.knime.core.node.defaultnodesettings.DialogComponentColumnFilter2

-- Philipp

3 
thank you for your reply, but that's not my problem. I want to insert several checkboxes so that the number of checkboxes is equal to the number of columns of the input file of my node that I retrieve it in the execute method
4

Ok; in that case you'll obviously need to check the input table’s specs. You can do that in your NodeDialogPane subclass by overriding the loadSettingsFrom method; it'll give you your PortObjectSpecs for all input tables. From there you can check the number of columns and build your dialog.

-- Philipp

5

thanks for your answer,

I tried to work with it but it doesn't work,May be you can give me a piece of code that illustrates how to do it..

Thanks.

--Nadia