[Laszlo-user] Dataset extraction

[fkc_email-openlaszlo]

HI All:

    I wasn't able to figure out how to extract and expand a dataset value. I 
tried to adapt the datapointer example or xpathQuery stuff but didn't succesd 
on that either.

    So if the music_list I get from the server is something like:

<songs>
    <song>../music/where_to_begin.mp3</song>
    <song>../music/over_sensitive.mp3</song>
    <song>../music/choofenhoufen.mp3</song>
</songs>

    How do I extract and play values in the dataset?  In the enclosed lzx, what 
is the right way to set the source to a value in the dataset?



--------------------------------------------------------------

<canvas>

  <dataset name="websongs" src="http:/m2/music_list" request="true"/>
    <view name ="music" >

      <method name="load_hardcoded">
    this.setSource('../music/where_to_begin.mp3');
      </method>

      <method name="load_from_dataset">
        this.setSource( DON'T KNOW HOW TO EXTRACT THIS FROM THE DATASET);
      </method>

      <button name="hardcoded_button" onclick="this.parent.load_hardcoded();">
    Load Hardcoded
      </button>

      <button name="dataset_button" onclick="this.parent.load_from_dataset();">
    Load From Dataset
      </button>
  
      <simplelayout />

    </view>
</canvas>

-----------------------------------------------------------

    Thanks in advance!



  Forrest