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Access multi selected values from dropdownlist and display to screen

Hi,

I am currently using the multi selection dropdownlist. I have populated the list and selected 2 items. I would now like to press a button on my screen and display the items I have selected. (This is my first step towards using the dropdownlist to select multiple items and add them to a table.)

So far, I have managed to display the first selected item on my screen. I would now like to display all the selected items.

My dropdownlist is set up exactly as in the syncfusion documentation here: https://help.syncfusion.com/lightswitch/html-client/dropdownlist/multi-selection-modes
My current button code is this:

myapp.DisplayItems_execute = function (screen)
{
    //Read all the selected items in the drop down list
    var itemsDropdown = screen.findContentItem("ItemListBox");

    //take first selected item and output a property
    var selectedService = servicesDropdown.value.selectedItem;
    screen.TestString = selectedService.Id;
};

Thank you very much in advance,
Anya-May Hope

3 Replies

KV Karthikeyan Viswanathan Syncfusion Team March 9, 2017 10:16 AM UTC

Hi Anya,    
  
Thanks for contacting Syncfusion support.  
  
 Yes, you can get the multiple selected items based on isChecked parameter. Please find to the code example:  
  
<code>  
  
input.ejDropDownList({  
           ……  
  
            change: function (args) {  
                if (servicesDropdown.value.selectedItem == nullservicesDropdown.value.selectedItem = [];  
                (args.isChecked) ? servicesDropdown.value.selectedItem.push(servicesDropdown.value.data[args.itemId]) :servicesDropdown.value.selectedItem.splice(servicesDropdown.value.selectedItem.indexOf(servicesDropdown.value.data[args.itemId]), 1);  
            }  
        });  
  
</code>  
   
   
Regards,  
Karthikeyan V.  



UN Unknown Syncfusion Team March 9, 2017 10:42 AM UTC

Fantastic, just what I needed. Thankyou very much!


GG Gopi Govindasamy Syncfusion Team March 10, 2017 06:00 PM UTC

Hi Anya,  
   
Most Welcome.  
   
Regards,  
Gopi G. 


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