Re: [Laszlo-user]simple question of creating a dynamic dataset

Thu, 12 Jan 2006 20:38:01 -0800

More question.
How to set the new creating LzDataset to another view in Class ?
The code1 works fine, but the code2 dose not work.
It said "couldn't find dataset for ds:/".
I think it is the cause of using class tag.
Something about localdataset i guess.
Any advice thanks.

mt1
===========[ code1 ]============
<canvas debug="true">
     <method event="oninit">
         var ds = new LzDataset( null, { name: 'ds',
                                 src: 'sample.xml',
                                 request: 'true' } );
         Debug.write( ds );
	 this.l.tl.setDatapath( 'ds:/' );
     </method>

    <list name="l" width="180">
    	<textlistitem name="tl" datapath="" text="$path{'something'}"/>
    </list>
</canvas>

===========[ code2 ]============
<canvas debug="true">
     <class name="cc">
	 <method event="oninit">
             var ds = new LzDataset( null, { name: 'ds',
                                 src: 'sample.xml',
                                 request: 'true' } );
             Debug.write( ds );
	     this.l.tl.setDatapath( 'ds:/' );
         </method>

         <list name="l" width="180">
    	     <textlistitem name="tl" datapath="" text="$path{'something'}"/>
         </list>
     </class>

     <cc/>
</canvas>

mt1 wrote:

Oh it was good.
Thank you M.


Makis wrote:

  
mt1,

Your code does work. Try writing Debug.write( ds ) instead of
ds.serialize() and you' ll see that the dataset is properly created.
The problem is serialize, which generally doesn't show dynamically
modified data.

M.

mt1 wrote:

    
All,
This is a simple question.
In the following code, the creating dataset is ok, but it dose not
read the 'src' file. The serialize() show only '<ds/>'.

<canvas debug="true">
<method event="oninit">
var ds = new LzDataset( null, { name: 'ds',
src: 'sample.xml',
request: 'true' } );
Debug.write( ds.serialize() );
</method>
</canvas>

I am understanding, if the 'request' attribute set 'true', it can set
the data of the 'src' automatically.
Dose it wrong?

mt1
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