I need to update selection list based on value in input field. Because of the update delay I do not want to update the selection list if it already has correct options. Shouldn't be too difficult I thought and tried this:

```
<p:inputText value="#{bean.inputValue}"> 
      <p:ajax update="#{bean.updateElement}">               
</p:inputText> /
<h:selectOneMenu id="so" value="#{bean.soValue}">
      <f:selectItem />
      <f:selectItems value="#{bean.options}" var="option" itemLabel="#{option}"/>
</h:selectOneMenu>

```

But it does not work because `bean.updateElement` does not get called when value in input field changes.

OK I need to use `p:remoteCommand` then. I was sure it would work with this:

```
<p:ajax oncomplete="updateSelect()"/>

```

..

```
<p:remoteCommand name="updateSelect" update="dt:so" oncomplete="alert('done')" />

```

The fields are in a `p:dataTable id="dt"` row. I get the alert but `bean.options` is still not called. If I change it to `update="dt"` it works and the whole datatable is updated but that's not what I want. I also tried with `so` `form:dt:so` and `:form:dt:so`.

Then I tried a couple of more options I could find:

```
RequestContext.getCurrentInstance().update("dt:so");

```

..

```
FacesContext.getCurrentInstance().getPartialViewContext().getRenderIds().add("dt:so");

```

but nothing happens. Tried also without `dt:`.

**Edit:**

I got one step closer this way:

```
<p:ajax update="@this #{bean.updateElement}"/>

```

Now `bean.updateElement` gets called every time I change input field value but the select component does not update until the *next time* I change the input field value. `bean.updateElement` returns "so" or "" depending on input field value.

**Edit 2:**

Using this the selected option stays when input field is modified:

```
<f:ajax execute="so" render="so" partialSubmit="true" />

```

I also tried with `<p:ajax process="so" update="so />` but the options are not any more updated. Keeping the selected option was one of my goals so this is good but could be better still.

How can I make this very simple thing work? My setup is this:

* Tomcat 7.0.53
* Mojarra 2.2.7
* primefaces-5.0.jar
* JRE 1.8.0\_05