[Users] mergeNewParams + Legend

[Sascha Müller]

Hi,

I use:

GeoExt: trunk (Revision: 2257)
OpenLayers: 2.9
GeoExt: 3.2.1
GeoServer: 1.7.7


I use mergeNewParams() to change the Style of a layer. This approach 
works except for one layer.
This layer contains five rules with filter. The map changes after 
mergeNewParams(), the legend not.
The layer is still there, the images of the five rules are gone.

If I use this SLD (see below) for the layer with the GeoServer from 
start, the layer appears in map and legend. only after
mergenewParams() the layer appears not in the legend.

The layer uses this:  var addlayer = new OpenLayers.Layer.WMS.Post()

SLD
===
<?xml version="1.0" encoding="UTF-8"?>
<sld:StyledLayerDescriptor xmlns="http://www.opengis.net/sld" 
xmlns:sld="http://www.opengis.net/sld" 
xmlns:ogc="http://www.opengis.net/ogc" 
xmlns:gml="http://www.opengis.net/gml" version="1.0.0">
<sld:NamedLayer>
<Name>WL:UBahn</Name>
<sld:UserStyle>
<sld:Name>Default Styler</sld:Name>
<sld:Title/>
<sld:FeatureTypeStyle>
<sld:Name>name</sld:Name>
<sld:FeatureTypeName>Feature</sld:FeatureTypeName>
<sld:SemanticTypeIdentifier>generic:geometry</sld:SemanticTypeIdentifier>
<sld:SemanticTypeIdentifier>colorbrewer:unique:oranges</sld:SemanticTypeIdentifier>
<sld:Rule>
<sld:MinScaleDenominator>0</sld:MinScaleDenominator>
<sld:MaxScaleDenominator>100000000</sld:MaxScaleDenominator>
<sld:Name>rule01</sld:Name>
<sld:Title>U1</sld:Title>
<Filter>
<PropertyIsEqualTo>
<PropertyName>LINIE</PropertyName>
<Literal>U1</Literal>
</PropertyIsEqualTo>
</Filter>
<sld:LineSymbolizer>
<sld:Stroke>
<sld:CssParameter name="stroke">
<Literal>#FEEDDE</Literal>
</sld:CssParameter>
<sld:CssParameter name="stroke-linecap">
<Literal>butt</Literal>
</sld:CssParameter>
<sld:CssParameter name="stroke-linejoin">
<Literal>miter</Literal>
</sld:CssParameter>
<sld:CssParameter name="stroke-opacity">1</sld:CssParameter>
<sld:CssParameter name="stroke-width">3</sld:CssParameter>
<sld:CssParameter name="stroke-dashoffset">
<Literal>0</Literal>
</sld:CssParameter>
</sld:Stroke>
</sld:LineSymbolizer>
</sld:Rule>

<!-- The other RULSs looks the same like the one above -->

</sld:FeatureTypeStyle>
</sld:UserStyle>
</sld:NamedLayer>
</sld:StyledLayerDescriptor>

Is there something wrong with the SLD? Do I have something to consider 
if I use mergeNewParams(), or something with the Legend?

Thanks

Sascha