private void MyConstructor()
{
_controller = AlaskaPak.Controller;
_controller.LayersChanged += Controller_LayersChanged;
_data = new FormData(_controller.GetPointLayers());
Enabled = MapHasPointFeatureLayer;
}
private static void EditLayer(FormData data)
{
IFeatureClass featureClass = data.GetFeatureClass();
if (featureClass == null)
{
MessageBox.Show(@"No feature layer/class was selected.");
return;
}
if (featureClass.ShapeType != esriGeometryType.esriGeometryPoint)
{
MessageBox.Show(@"Data is not a point feature.");
return;
}
//If fields don't exist, add them
foreach (string fieldName in new[] { data.XFieldName, data.YFieldName })
{
if (data.FieldNameExists(fieldName))
continue;
esriFieldType fieldType = data.Format.Formattable
? esriFieldType.esriFieldTypeString
: esriFieldType.esriFieldTypeDouble;
try
{
AddField(featureClass, fieldName, fieldType);
}
catch (Exception e)
{
MessageBox.Show(
@"Unable to add new fields.
Check that the selected data is not open in Catalog.
Check that the selected layer is not being edited.
System Message: "
+ e.Message);
return;
}
}
//try to get an update cursor on the feature class
IFeatureCursor cursor;
try
{
cursor = featureClass.Update(null, true);
}
catch (Exception e)
{
Console.WriteLine(@"Unable to edit the layer: " + e.Message);
return;
}
int xIndex = cursor.FindField(data.XFieldName);
int yIndex = cursor.FindField(data.YFieldName);
ISpatialReference spatialReference = null;
if (data.Format.OutputFormat == FormatterOutputFormat.DataFrame)
spatialReference = ArcMap.Document.FocusMap.SpatialReference;
if (data.Format.Formattable)
// We already guaranteed it is a point feature, so it must implement IGeoDataset
spatialReference = GetGcsFromPcs(((IGeoDataset)featureClass).SpatialReference);
IFeature feature = cursor.NextFeature();
while (feature != null)
{
var point = (IPoint)feature.Shape;
if (spatialReference != null)
point.Project(spatialReference);
if (data.Format.Formattable)
{
feature.Value[xIndex] = data.Format.Format(point.X, false);
feature.Value[yIndex] = data.Format.Format(point.Y, true);
}
else
{
feature.Value[xIndex] = point.X;
feature.Value[yIndex] = point.Y;
}
cursor.UpdateFeature(feature);
feature = cursor.NextFeature();
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(cursor);
}
internal AddXyForm(FormData data)
{
InitializeComponent();
Data = data;
}