Question: I'm using jQuery Treeview. Is there's a way to populate a children node in a specific parent on onclick event? Please give me some advise or simple sample code to do this.

Answer: 
You can trigger the change event yourself in the `inputvalue` function:

```
function inputvalue(){
   $("#inputid").val("bla").change();
}

```

Also notice the correction of your syntax... in jQuery, `val` is a function that takes a string as a parameter. You can't assign to it as you are doing.

Here is an [example fiddle](http://jsfiddle.net/sm4cD/) showing the above in action.
Your function has an error. Try this:

```
function inputvalue(){ 
   $("#inputid").val()="bla" 
} 

```

EDIT

My function is also wrong as pointed in comments.

The correct is:

Using pure javascript

```
function inputvalue(){ 
   document.getElementById("inputid").value ="bla"; 
} 

```

Using jQuery

```
function inputvalue(){ 
   $("#inputid").val("bla"); 
} 

```