Hi,

I copied block of codes from your last message, reformatted it for lines, and tested.
Considering your note, that it used to work without dialog, I assumed that the end of your block related to javascript was inserted into <script ...>.
My block

<script type="text/javascript">
function setNewDepositDecimalPlaces()
{
  var clientID = "<%=txtNewDepositAmount.ClientID%>";
  var DepositAmount = igedit_getById(clientID);
  alert("NewValue=" + DepositAmount.getValue());
}
</script>

produced alert with correct value.

I would suggest you: do not use special feature of WebTextEdit which allows to use explicit javascript statements in ClientSideEvents, but use standard approach: name of function like ValueChange="setNewDepositDecimalPlaces". I also would suggest you to use "Add new hadler..." option in VisualDesigner editor for those properties. In this case you would get something like

function txtNewDepositAmount_ValueChange(oEdit, oldValue, oEvent)
{
 //Add code to handle your event here.
}

In this case you would not need to find reference to editor, because it is the first parameter (oEdit) in handler. It also provides old value and other abilities related to oEvent.

Note: VisualStudio2008 designer may fail to update aspx if property of a child located in container was modified from property pages. So, you may get around by temporary remove child (editor) from its container dialog, insert it directly in page, modify its properties and insert it back to original location. That problem is applied to almost all containers: Panel, UpdatePanel, WebDialogWindow, etc.

I cannot locate the control at all. What needs to happen is once the value of the webcurrencyedit changes, it is formatted. I have an identical function that works fine on a currencyedit that is not in a webdialogwindow Here is the code for the dialog window: