[Active4d-dev] Reference to an undefined variable or value

[MatDion]

Variable I pass to another page is a Reference to an undefined variable or
value... 
... 
    <out>
      <number name="$vlNo" scope="attributes" optional="yes"
comments="Numéro unité exporté" />
... 
&lt;form name=&quot;form1&quot; method=&quot;post&quot;
action=&quot;&lt;%=fusebox.makeUrl(&quot;detail.imprimer&quot;)%&gt;"> 
  <input type="submit" name="b_submit" value="Imprimer" />
  &lt;input type=&quot;hidden&quot; name=&quot;b_no&quot;
value=&lt;%=[Unite_Evaluation_Detail]No_Unique_Unite_Eval%&gt;> 

  <% a4d.web.hideField("form_submitted"; 1) %> 
</form>
... 
if ($attributes{"form_submitted"} # "") 

$vlNo := $attributes{"b_no"} 
throw(string($vlNo)) 
a4d.debug.dump form variables 
 end if %> 

In the switch: 


case of 
        :($fuseaction = "details") 
                
                include("models/qry_selectOne.a4d") 
                include("views/dsp_details.a4d") 
        
        :($fuseaction = "imprimer") 
                include("views/dsp_imprimer.a4d") 

The other page: 
<% /* 
<fusedoc fuse="dsp_list.a4d" language="Active4D" specification="2.0">
  <responsibilities>
    I show a list of the Municipalite. 
  </responsibilities>
  <io>
    <in>
        <number name="$vlNo" scope="attributes" optional="yes"
comments="Numéro unité exporté" />
    </in>
  </io>
</fusedoc>
*/ 
throw($vlNo) 
%> 

Any clue why?

Have a good day

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