public static void QueryByAttribute(string qstring, mapObj map, bool zoomToResults)
{
Console.WriteLine("\nPerforming QueryByAttribute:");
try
{
layerObj layer;
rectObj query_bounds = null;
for (int i = 0; i < map.numlayers; i++)
{
layer = map.getLayer(i);
if (layer.connection != null && IsLayerQueryable(layer))
{
Console.WriteLine("Layer [" + i + "] name: " + layer.name);
BuildQuery(layer, qstring);
// zoom to the query results
using (resultCacheObj results = layer.getResults())
{
if (results != null && results.numresults > 0)
{
// calculating the extent of the results
if (query_bounds == null)
{
query_bounds = new rectObj(results.bounds.minx, results.bounds.miny,
results.bounds.maxx, results.bounds.maxy, 0);
}
else
{
if (results.bounds.minx < query_bounds.minx)
{
query_bounds.minx = results.bounds.minx;
}
if (results.bounds.miny < query_bounds.miny)
{
query_bounds.miny = results.bounds.miny;
}
if (results.bounds.maxx > query_bounds.maxx)
{
query_bounds.maxx = results.bounds.maxx;
}
if (results.bounds.maxy > query_bounds.maxy)
{
query_bounds.maxy = results.bounds.maxy;
}
}
}
}
}
}
// setting the map extent to the result bounds
if (query_bounds != null)
{
if (zoomToResults)
{
map.setExtent(query_bounds.minx, query_bounds.miny, query_bounds.maxx, query_bounds.maxy);
map.scaleExtent(1.2, 0, 0); // increasing the visible area
Console.WriteLine("Current map scale: 1:" + (int)map.scaledenom);
}
}
else
{
Console.WriteLine("The query returned 0 results ...");
}
}
catch (Exception e)
{
Console.WriteLine("QueryByAttribute: " + e.Message);
}
}
public static void QueryByAttribute(string qstring, mapObj map, bool zoomToResults)
{
Console.WriteLine("\nPerforming QueryByAttribute:");
try
{
layerObj layer;
rectObj query_bounds = null;
for (int i = 0; i < map.numlayers; i++)
{
layer = map.getLayer(i);
if (layer.connection != null && IsLayerQueryable(layer))
{
Console.WriteLine("Layer [" + i + "] name: " + layer.name);
BuildQuery(layer, qstring);
// zoom to the query results
using (resultCacheObj results = layer.getResults())
{
if (results != null && results.numresults > 0)
{
// calculating the extent of the results
if (query_bounds == null)
query_bounds = new rectObj(results.bounds.minx, results.bounds.miny,
results.bounds.maxx, results.bounds.maxy,0);
else
{
if (results.bounds.minx < query_bounds.minx) query_bounds.minx = results.bounds.minx;
if (results.bounds.miny < query_bounds.miny) query_bounds.miny = results.bounds.miny;
if (results.bounds.maxx > query_bounds.maxx) query_bounds.maxx = results.bounds.maxx;
if (results.bounds.maxy > query_bounds.maxy) query_bounds.maxy = results.bounds.maxy;
}
}
}
}
}
// setting the map extent to the result bounds
if (query_bounds != null)
{
if (zoomToResults)
{
map.setExtent(query_bounds.minx, query_bounds.miny, query_bounds.maxx, query_bounds.maxy);
map.scaleExtent(1.2, 0, 0); // increasing the visible area
Console.WriteLine("Current map scale: 1:" + (int)map.scaledenom);
}
}
else
Console.WriteLine("The query returned 0 results ...");
}
catch (Exception e)
{
Console.WriteLine("QueryByAttribute: " + e.Message);
}
}
