[mapguide-users] Filter/Show only selected

[Radosław Bobowski]

Hi all
For couple of days I'm trying to wrote something like "setFilter()" function. This function should be able to set filter applied to data and show only those elements/objects of layer on the map that fit to my expression. I'm working whit fusion and I know that there are some filter options...
var options = {};
 options.geometry = 'LINESTRING(x y, x y, ...)'; 
 options.filter = 'ID = 1';
 options.layers = 'MyLAYER';
 mapWidget.query(options);
But this solusion don't satisfy me couse it only filter current selection :(
So I also try to use 'BuildLayerDefinitionContent()' from buffer.php but it throws me exception 'mgbytesource' in this line:
 $src = new MgByteSource($xmlStr, strlen($xmlStr));
  return $src->GetReader();

PLS help

Radek.
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