Publication date: 05/24/2021

Suppose that you want to count the number of child text boxes in a list box. The most reliable way is to use XPath to find a specific string in the text boxes and then use N Items() to count the number of text boxes.

dt = Open( "$SAMPLE_DATA/Big Class.jmp" );

`biv = Bivariate(`

Y( :weight ),

X( :height ),

Group By( :age ),

` Fit Line( {Line Width( 3 )} )`

);

/* start with the root list box, find a text edit box

that starts with “Linear Fit age==”, and count the number of children */

N Items( biv << XPath( "//ListBox[starts-with(TextEditBox,'Linear Fit age==')]" ) );

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