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Paul Shearing
1360
How to set WebDropDown selection via VALUE not TEXT
posted

Is there an efficient way (ClientSide) to select an item in a WebDropDown based on the VALUE (happens to be an Integer) rather than the TEXT? The method [set_currentValue] does not do what I expected (it should be called [set_CurrentText] IMHO.)

I currently have to scan the items in the dropdown list looking for the one that has the correct value and then use its text to set the selected item, thus:

  function setDROP(clientID, val) {  // clientID of the WebDropDown, val = INT value
     var dd = $find(clientID);                  // get the dropdown control
     dd.set_selectedItemIndex(-1);  // de-select all
     var items = dd.get_items();  // get the items[]
     var iCount = items.getLength();  // how many we got?
     for (var i = 0; i < iCount; i++)  // scan the items
     {
         var itm = items.getItem(i);  // get the next item
         if (itm.get_value() == val)  // does its value match?
         {
            dd.set_currentValue(itm.get_text(), true);  // Yes, set the WebDropDown by specifying the text associated with the value
            break;    // we are done...
         }
     }
  }

This is VERY inefficient and requires on average a scan of half of the items in the list, yuk.

Any ideas on how best to do this? Surely there must be a better way.

Kind regards,

Paul