Add/remove properties in run-time

[andrewtelnov]

Two new methods have been added:

JsonObject.metaData.addProperty(className, propertyDescription);
JsonObject.metaData.removeProperty(className, propertyName);

The property will be added into the class: className (string, case sensitive) and all it's descendants.
propertyDescription it can be string or json object.
For example: "mynewProperty" = {name: "mynewProperty"} the default type is string,
"mynewProperty:boolean" = {name: "mynewProperty", type: "boolean"}.
The following types are available:
"string" - default type, "boolean", "numeric", "text" (large text), "html", "itemvalues" (to edit ItemValue array).

{ name: "showProgressBar", default: "off", choices: ["off", "top", "bottom"] }

The following example shows a string property with default value "off" and 3 choices "off", "top" and "bottom". Survey editor will use dropdown input to edit it.

[andrewtelnov]

The demo was added.

[fabien]

I cannot see the demo code when I follow that link - it appears not to load correctly. The other customization demos won't load for me either.

[andrewtelnov]

@fabien Does this link work for you? http://editor.surveyjs.io/examples/addproperties.html#code
It works fine for me and there is the similar issue, #234, which is closed already.

Thank you,
Andrew

[LA95]

What if I want to remove the '*' in a matrixtype questionnaire?

[andrewtelnov]

@LA95 Could you please describe your question in more details?

Thank you,
Andrew