Update Protocol

Last Updated: 9/13/2008

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Topics in this section:
IW Ajax Limitations
Error Handling and Debugging
Update Protocol
Async Event Handling

Code Sample

<response>
<update>
<control id="IWEDIT1">
   <left>10</left>
   <top>200</top>
   <value>Hello this is a value</value>
   <color>clRed</color>
</control>
<control id="IWLISTBOX1">
   <value op="append">A Value</value>
</control>
<control id="IWLISTBOX2">
   <value op="append" name="thename">the value</value>
   <value op="append" name="thesecondname>the second value</value>
   <value op="update" name="third">third value</value>
   <value op="remove">remove_this_value</value>
   <value op="remove" name="byname"></value> </update> <execute>
<literal>alert("joe")</literal>
</execute>
</response>

This describes several things:

1. Updating the value of an edit control

2. Adding a new value to a listbox

3. Adding 2 new values with the style name/value to a listbox

4. Updating an entry in the listbox

5. Removing a value in the listbox by value

6. Removing a value in the listbox by name

Finally, there is an option to execute JS code directly sent by the server.