PRB: Setting a Default Value in a Client Listbox DTC (194017)

SYMPTOMS

When you attempt to set a default (selected) value of a Listbox Design-time control (DTC) with the Scripting Platform set to "Client (IE 4.0 DHTML)" and the Row Source set to a Recordset DTC with the Scripting Platform set to "Client (IE 4.0 DHTML)", no default value is set when you use the following code in the Window_onload or Recordset1_ondatasetcomplete events:

   Listbox1.selectedIndex = 0;

-or-

   Listbox1.selectByText("text");

RESOLUTION

To set a default value in the Window_onload event you must use the following code:

  Recordset1.advise(RS_ONDATASETCOMPLETE, "Listbox1.selectedIndex=0");

-or-

  Recordset1.advise(RS_ONDATASETCOMPLETE, "Listbox1.selectByText('text')");

This defers selection of an item until after the Listbox DTC is initialized by the Recordset DTC.

MORE INFORMATION

Steps to Reproduce Behavior

Open a Visual InterDev Web project with a data connection.
Add a new .html page, right-click the page and select properties.
Set your Default Scripting Language for client to JavaScript (ECMAScript), and then select OK.
Add a Recordset DTC.
Add a Listbox DTC and set the Row Source to the Recordset DTC.
Select the Script Outline tab. If this tab is not present, from the View menu, choose Other Windows and then select Script Outline.
Expand Client Objects & Events, expand Window and double-click the Onload event.
A function appears in your editor.

Add the following code to the Onload event:

      Listbox1.selectedIndex = 0;

Right-click in the page and choose View in Browser. Answer Yes to the prompt to save the changes.