Why won't my drop down list populate from the array?

[jelf234]

I am using the following array. 

var actDesc = new Array(" ",

"Desc1 ",

"Desc2 ",

"Desc3 ");

// Array of HUD Activity Numbers.

var actNum = new Array(null,

"1 ",

"2 ",

"3 ");

// This populates the Description Drop-down List and works just fine.

function populateActDesc(dropdownField)

{

      var i;

      for (i=0; i < actDesc.length; i++)

         dropdownField.addItem(actDesc[i]);

}

//This is supposed to populate the Description Number Drop-down List but doesn't work.

function populateActNum(dropdownField)

{

      var i;

      for (i=0; i < actNum.length; i++)

         dropdownField.addItem(actNum[i]);

}

// Populates another field based on the Description Field value chosen and works as intended.

function getDesc(hudActivityDescription, hudActivityNumberField)

{

   var i;

   for (i = 0; i < actDesc.length; i++)                

   {

      if (actDesc[i] == hudActivityDescription)        

  {

        hudActivityNumberField.rawValue = actNum[i];        

   break;               

  }

   }

}

I placed the following into the drop-down list object holding the actDesc array (Event: initialize; Language: javascript):

actNoScript.populateActDesc(this);

This works just fine.

I placed the following into the drop-down list object holding the actNum array (Event: initialize; Language: javascript):

actNoScript.populateActNum(this);

This doesn't work.  Any ideas?

Any help would be greatly appreciated.  I am using LCD 8.2 ES on Vista 32bit.

Thanks,

Jerald

[_Bruce_Robertson · Accepted solution]

Hi Jerald,

You can't assign null to the display value of a drop down control.  If you change the HUD activity number array to remove the null it should work. 

That is;

// Array of HUD Activity Numbers.

var actNum = new Array("  ","1 ","2 ","3 ");

Bruce