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We had a similar challenge here, one of our web programmers helped me
figure this out.<br>
In this situation, I wanted all layers with a name that did NOT include
"Balance", "Ratio", or "Highlight" to appear in this layercontainer:<br>
<br>
loader: { <br>
filter: function(record) {<br>
var myarr = new Array();<br>
myarr[0]=record.get("layer").name.indexOf("Balance");<br>
myarr[1]=record.get("layer").name.indexOf("Ratio");<br>
myarr[2]=record.get("layer").name.indexOf("Highlight");<br>
<br>
if(myarr[0]==-1 && myarr[1]==-1
&& myarr[2]==-1){<br>
return true;<br>
}else{<br>
return false;<br>
}<br>
}<br>
<br>
Not sure if it's THE best solution, but it does work and it's fairly
simple to add additional words to search for. <br>
Hope this helps, <br>
<br>
Ryan<br>
<br>
On 9/1/2010 9:49 AM, Andrew Stewart wrote:
<blockquote
cite="mid:94816848A8EB3941B1E8592F425827A96845C804A7@chex2.crdnet.ca"
type="cite">
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<div>I am faily new to GeoExt and openlayers. What I am trying to do
is add multiple filters to a layercontainer so that I can add multiple
layers to each group. Not sure if this is the best way to do this but
what I want to do is add all my Street Labels to
a group called "Labels" I can add one no problem called Overview
Streets with the following code, but I need to add additional layers
like one called Quadrant Streets. When I try to modify the filter code
to add additional names it doesn't work and I get javascript
errors. Any help appreciated!</div>
<div> </div>
<div><font color="#008000" face="Courier New">//Define Layer List
Control - Tree Control for Legend Control</font></div>
<div><font face="Courier New"> <font color="#0000ff">var</font>
layerList_Labels = <font color="#0000ff">new</font>
GeoExt.tree.LayerContainer({</font></div>
<div><font face="Courier New"> text: <font color="#a31515">'Labels'</font>,</font></div>
<div><font face="Courier New"> layerStore: mapPanel.layers,</font></div>
<div><font face="Courier New"> leaf: <font color="#0000ff">false</font>,</font></div>
<div><font face="Courier New"> expanded: <font color="#0000ff">false</font>,</font></div>
<div><font face="Courier New"> loader: {</font></div>
<div><font face="Courier New"> filter: <font
color="#0000ff">function</font>(record) {</font></div>
<div><font face="Courier New"> <font color="#0000ff">return</font>
record.<font color="#0000ff">get</font>(<font color="#a31515">"layer"</font>).name.indexOf(<font
color="#a31515">"Overview Streets"</font>) !== -1 (need to
add Quadrant
Streets here also)</font></div>
<div><font face="Courier New"> }</font></div>
<div><font face="Courier New"> }</font></div>
<div><font face="Courier New"> });</font></div>
<div><font face="Courier New"> </font></div>
<div><font color="#000080" face="Courier New"><br>
</font></div>
<div><font face="Courier New"> </font></div>
<div> </div>
</font>
<div>
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</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Ryan Williams, GISP
GIS Analyst / Programmer
PAQ Interactive Inc.
107 S State St., Suite 300
Monticello, IL 61856-1968
</pre>
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