Hi Phil219,
Yes you can change the map's center location based on the drop down selection. here I'm posting the code that i have done. based on the city name selection the map center location will be set automatically and displays the map with city info.
<form>
<label>MapDashboard</label>
<fieldset submitButton="false" autoRun="true">
<input type="dropdown" token="state_token" searchWhenChanged="true">
<label>Pick a State</label>
<search>
<query>| inputlookup geomaps_data.csv | iplocation device_ip | where City != ""| stats count by City lat lon | table City, lat, lon</query>
</search>
<fieldForLabel>City</fieldForLabel>
<fieldForValue>City</fieldForValue>
<default>London</default>
<change>
<set token="lat_tok">$row.lat$</set>
<set token="lon_tok">$row.lon$</set>
</change>
</input>
</fieldset>
<row>
<panel>
<map>
<title>Maps</title>
<search>
<query>| inputlookup geomaps_data.csv | iplocation device_ip | search lat=$lat_tok$ lon=$lon_tok$ | geostats latfield=lat longfield=lon count by City</query>
</search>
<option name="mapping.type">marker</option>
<option name="mapping.map.center">($lat_tok$,$lon_tok$)</option>
<option name="mapping.choroplethLayer.colorBins">5</option>
<option name="mapping.choroplethLayer.colorMode">auto</option>
<option name="mapping.choroplethLayer.maximumColor">0xDB5800</option>
<option name="mapping.choroplethLayer.minimumColor">0x2F25BA</option>
<option name="mapping.choroplethLayer.neutralPoint">0</option>
<option name="mapping.choroplethLayer.shapeOpacity">0.75</option>
<option name="mapping.choroplethLayer.showBorder">1</option>
<option name="mapping.data.maxClusters">100</option>
<option name="mapping.map.panning">true</option>
<option name="mapping.map.scrollZoom">true</option>
<option name="mapping.map.zoom">2</option>
<option name="mapping.markerLayer.markerMaxSize">50</option>
<option name="mapping.markerLayer.markerMinSize">10</option>
<option name="mapping.markerLayer.markerOpacity">0.8</option>
<option name="mapping.showTiles">1</option>
<option name="mapping.tileLayer.maxZoom">7</option>
<option name="mapping.tileLayer.minZoom">0</option>
<option name="mapping.tileLayer.tileOpacity">1</option>
<option name="drilldown">all</option>
</map>
</panel>
</row>
</form>
First im getting City name, lat and lon values but displaying only city in the Dropdown, for other two fields i have taken two more tokens. that tokens im binding to mapcenter location. you can download geomaps_data.csv sample lookup from webframework toolkit app.
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