The label selector is just an input widget, so it won't address your whole requirement. However, if you create a 'lookup' entity, lets call it ProductType, that has one attribute, Product Type, which is your enumeration. Remove the ProductType attribute from both the ReportParameters entity and the Product entity. Create a many to many association between the ReportParameters entity and the ProductType entity. Create a 1 to many association between the Product entity and the ProductType entity (each Product can have only one ProductType). Now you can prompt the user for parameters, using the ReportParameters entity and retrieve all of the matching products in your report processing microflow using XPath.
You cannot multi-select enumerations in Mendix. In order to provide mult-select, you can create a many to many association (as you mention in our post) or you could create more than one attribute with the same enumeration in the entity you are working with. I am not sure of your app requirement, so I don't know if that's feasible.
If you decide to use a many to many association, I have found the label selector widget from the app store works great. Users can type in part or all of the value they want to use, they see a list of values that match what they have typed and can easily build a many to many association.
Hope that helps,
Thanks for your quick advise.
My requirement is I have to generate a report by passing few parameters. I want all my input parameters bundled into an entity and pass to a microflow for further processing.
One of the parameter in my input entity is 'ProductType' which is nothing but a Enum which contains set of values. I am showing all the values now using a drop-down so I am able to pass only one of the selected value with that input entity. As client wants to select multiple 'ProductTypes' and generate the report I am failing to do so with the drop-down anymore.
Can you please help me if the 'Label Selector' can anyway solve my problem ?
Thanks again for your help.
You cannot have multi-select while editing because an attribute can contain only a single value. However, when searching/filtering, you can use multi-select on the search field. See 'Allow multi-select' on the following documentation page:
So, you can make a data grid with such a search field and then you can select multiple enumeration values and all records will be retrieved that match one of those values.
Does that help?
Thanks for your suggestion. We are currently using Mendix version 4.4.0 for our project and it seems like 'Drop-Down Search Field' multi-select widget has been introduced in 5.2.0 version.
Will try that once will upgrade to new version.