You can use the properties on IEditor3 to loop through the templates. Alternatively you can get the templates for a layer via IEditTemplateManager, then set the one you want as IEditor3.CurrentTemplate.
public void GetEditTemplateManager(ESRI.ArcGIS.Carto.ILayer layer)
{
ILayerExtensions layerExtensions;
IEditTemplateManager editTemplateMgr;
layerExtensions = layer as ILayerExtensions;
//Find the EditTemplateManager extension.
for (int j = 0; j < layerExtensions.ExtensionCount; j++)
{
object extension = layerExtensions.get_Extension(j);
if (extension is IEditTemplateManager)
{
editTemplateMgr = extension as IEditTemplateManager;
//Use EditTemplateManager to get information about templates.
}
}
}
Once you set the current template, you can create geometry for new features (either through the edit sketch or your own geometry). You can set feature attributes via the template:
m_editor.StartOperation();
IEditTemplate editTemplate = m_editor.CurrentTemplate;
IFeatureLayer featLayer = editTemplate.Layer as IFeatureLayer;
IFeatureClass featClass = featLayer.FeatureClass;
IFeature newFeature = featClass.CreateFeature();
newFeature.Shape = point;
//Apply default values as stored in the template properties.
editTemplate.SetDefaultValues(newFeature);
newFeature.Store();
m_editor.StopOperation("Create Point");
//Invalidate the area around the new feature.
m_editor.Display.Invalidate(newFeature.Extent, true, (short)esriScreenCache.esriAllScreenCaches);
Note: If you want to use the shape constructors with your tool then you'll need to do a bunch of call forwarding to the current shape constructor, which internally drives the sketch. This is all documented in Beta2.
