Custom property expression not persisting.

stascher — Sat, 16 Nov 2024 05:38:01 GMT

I've created an extension in which I want users to be able to enhance their Measures by entering an expression string to specify, in this case, a color value. For example, "= if (count(foo)>10,vRed,vGreen)".

I've got the expression field displaying okay using the following:

definition: { type: "items", component: "accordion", items: { dimensions: { uses: "dimensions", min: 2, max:2 }, // measure value is either bar/line length or type of point object measures: { uses: "measures", min: 1, max: 6, type:"items", items: { VisualType: { type: "string", component:"dropdown", label: "Visual Type", ref: "qDef.visualType", options: [{ value: "BAR", label: "Bar" },{ value: "LINE", label: "Line" },{ value: "POINT", label: "Point" }], defaultValue: "BAR" }, // this evaluates to a number for each row.. qAttrExps.qValues[0].qNum ColorExp: { type:"string", label:"Color Expression", ref:"qAttributeExpressions.0.qExpression", expression:"always", defaultValue:"" } } }, sorting: { uses: "sorting" }, appearance: { uses: "settings", type: "items", items: { ....

The problem is that after specifying the expression string, if I go back into Edit mode, the expression is blank.

I've tried removing the defaultValue line but that didn't have an effect.

Am I missing a step or attribute required to make the expression persist?

Thanks,
Steve

Re: Custom property expression not persisting.

stascher — Mon, 10 Jun 2019 13:31:28 GMT

Looks like I need to use component:"expression", instead of expression:"always".

topic Custom property expression not persisting. in Integration, Extension & APIs

Custom property expression not persisting.

Re: Custom property expression not persisting.