Assign Multiple SelectItem to DataSource

[andyx1975]

Hi,

I just have a question... is it possible to assign the following SelectItem to a dataSource?

            LinkedHashMap<String, String> map = new LinkedHashMap<String, String>();
            map.put("10", "car";
            map.put("20", "bike");
            map.put("30", "bus");

            SelectItem item = new SelectItem("item", "item");
            item.setValueMap( map );
            item.setMultiple( true );

For storing the values I call:

            item.getValuesAsString();

This methode provides me a result String like

            10,20,30

In my datasource I use the following

        DataSourceTextField itemField = new DataSourceTextField("item", "item");
        itemField.setMultiple( true );

But the datasource assignment does not work. Values are not selected. The string "10,20,30" appears as value in the combobox.

I used
martGWT: 6.1p (Build Sat, 02.12.2017)
OP: Ubuntu
Browser: Chrome

Thanks
Andy

[Isomorphic]

Yes, you can use a DataSource with a multiple select. See DataSourceField.multipleStorage.

[andyx1975]

Thanks for responding... but isn't this what I did?

LinkedHashMap<String, String> map = new LinkedHashMap<String, String>();            
map.put("1", "car";            
map.put("2", "bike");            
map.put("3", "bus");              

DataSourceTextField typesField = new DataSourceTextField( "types", "types");            
typesField.setMultiple( true );            
typesField.setMultipleValueSeparator( "," );            
typesField.setValueMap( map );              

SelectItem comboType = new SelectItem( "types" );            
comboType.setMultiple( true );            
comboType.setMultipleValueSeparator( "," );            
comboType.setMultipleAppearance( MultipleAppearance.PICKLIST );            
comboType.setValueMap( map );

With the above mentioned code... there are not items selected in the SelectItem. Only the IDs appear in the combo as String (See Screenshot).



My values comes in via Restful/Json as follows:

 
 "types":"2,3"

[Isomorphic]

See docs - the expected value for a field that is multiple:true is an array of values, not a comma-separated string. In UI controls and when retrieved from a DataSource is this format. multipleStorage applies only at the point that the server framework is storing to SQL or Hibernate.