private IFeatureScheme CreateCategoryScheme(TFeatureBasedMapData mapData)
{
IFeatureScheme scheme = CreateScheme();
scheme.ClearCategories();
scheme.AddCategory(CreateDefaultCategory(mapData));
MapTheme <TCategoryTheme> mapTheme = mapData.Theme;
Dictionary <string, int> attributeMapping = GetAttributeMapping(mapData);
if (attributeMapping.ContainsKey(mapTheme.AttributeName))
{
int attributeIndex = attributeMapping[mapTheme.AttributeName];
foreach (TCategoryTheme categoryTheme in mapTheme.CategoryThemes)
{
IFeatureCategory category = CreateFeatureCategory(categoryTheme);
category.FilterExpression = CreateFilterExpression(attributeIndex, categoryTheme.Criterion);
scheme.AddCategory(category);
}
}
return(scheme);
}
public void MessageReceived(Core.Result.Events.ResultLayerSelected theEvent)
{
if (theEvent.ResultSet == null)
{
this.resultsGroup.Layers.Remove(this.resultsLayer);
this.resultsLayer = null;
return;
}
if (this.curResultsSet != theEvent.ResultSet)
{
SetupResultsMapGroup(theEvent.ResultSet);
}
if (this.resultsLayer == null)
{
return;
}
var layers = theEvent.SelectedLayers;
IFeatureScheme scheme = this.resultsLayer.Symbology.Clone() as IFeatureScheme;
this.resultsLayer.Symbology.SuspendEvents();
scheme.ClearCategories();
for (int i = 0; i < layers.Count; i++)
{
var cat = new LineCategory(this.colorList[i % this.colorList.Count], 1);
string filter = "[LayerName] = '" + layers[i] + "'";
cat.FilterExpression = filter;
cat.LegendText = layers[i];
scheme.AddCategory(cat);
}
BeginInvoke(new MethodInvoker(delegate
{
this.resultsLayer.Symbology.CopyProperties(scheme);
this.resultsLayer.Symbology.ResumeEvents();
}));
}