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Posted 11 May 2007

Moving Items from one Listbox to another.

, 11 May 2007
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This Article explains how to move Items between two listbox


This Article is usefull to move the list items between 2 listbox or combo or dropdown, it will also give an alert message if no items of the listbox are selected.


This code can be used in any web applications, in the javascript part.

Using the code


The name of Buttons are assumed to be btnMoveRight and btnMoveLeft

The name of the ListBox are assumed to be ListBox1 and ListBox2

[__strong__]Code for the javascript function:

function fnMoveItems(lstbxFrom,lstbxTo)
 var varFromBox = document.all(lstbxFrom);
 var varToBox = document.all(lstbxTo); 
 if ((varFromBox != null) && (varToBox != null)) 
  if(varFromBox.length < 1) 
   alert('There are no items in the source ListBox');
   return false;
  if(varFromBox.options.selectedIndex == -1) // when no Item is selected the index will be -1
   alert('Please select an Item to move');
   return false;
  while ( varFromBox.options.selectedIndex >= 0 ) 
   var newOption = new Option(); // Create a new instance of ListItem 
   newOption.text = varFromBox.options[varFromBox.options.selectedIndex].text; 
   newOption.value = varFromBox.options[varFromBox.options.selectedIndex].value; 
   varToBox.options[varToBox.length] = newOption; //Append the item in Target Listbox
   varFromBox.remove(varFromBox.options.selectedIndex); //Remove the item from Source Listbox 
 return false; 

code for calling the javascript function:
There are 2 methods of calling the javascript code, they are as under.
1.  Add this code in the pageload
btnMoveRight.Attributes.Add("onclick","return fnMoveItems('ListBox1','ListBox2')");
btnMoveLeft.Attributes.Add("onclick","return fnMoveItems('ListBox2','ListBox1')");
2.  Add this code in the HTML
<input type = "button" id = "btnMoveRight" onclick = "fnMoveItems('ListBox1','ListBox2')">
<input type = "button" id = "btnMoveLeft" onclick = "fnMoveItems('ListBox2','ListBox1'">

Points of Interest

Let me know if you have any queries.


New Article on AJAX to be added shortly. :-)


This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here


About the Author

Partha G
Software Developer (Senior)
India India
Hi this is Partha Sarathy . G working as a .NET Developer in Verizon, Hyderabad.

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Comments and Discussions

Generaltest Pin
pune15-May-09 22:28
memberpune15-May-09 22:28 
GeneralRe: test Pin
pune16-May-09 1:28
memberpune16-May-09 1:28 
GeneralRe: test Pin
pune18-Jul-09 2:29
memberpune18-Jul-09 2:29 

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