public static void UpdateCalculatedRecords(FeatureLayer featureLayer, IEnumerable <FeatureSourceColumn> updateColumns, bool needCalculate)
{
featureLayer.SafeProcess(() =>
{
try
{
featureLayer.CloseInOverlay();
featureLayer.SetLayerAccess(LayerAccessMode.ReadWrite);
featureLayer.Open();
foreach (var column in updateColumns)
{
var calculateColumn = column as CalculatedDbfColumn;
if (calculateColumn == null)
{
EditorUIPlugin editorPlugin = GisEditor.UIManager.GetActiveUIPlugins <EditorUIPlugin>().FirstOrDefault();
if (editorPlugin != null)
{
string id = featureLayer.FeatureSource.Id;
if (editorPlugin.CalculatedColumns.ContainsKey(id))
{
calculateColumn = editorPlugin.CalculatedColumns[id].FirstOrDefault(c => c.ColumnName == column.ColumnName);
}
}
}
if (calculateColumn != null)
{
EditorUIPlugin editorPlugin = GisEditor.UIManager.GetActiveUIPlugins <EditorUIPlugin>().FirstOrDefault();
if (editorPlugin != null)
{
string id = featureLayer.FeatureSource.Id;
if (editorPlugin.CalculatedColumns.ContainsKey(id) && !editorPlugin.CalculatedColumns[id].Any(c => c.ColumnName == calculateColumn.ColumnName))
{
editorPlugin.CalculatedColumns[id].Add(calculateColumn);
}
else
{
editorPlugin.CalculatedColumns[id] = new Collection <CalculatedDbfColumn>();
editorPlugin.CalculatedColumns[id].Add(calculateColumn);
}
}
if (needCalculate)
{
var features = featureLayer.FeatureSource.GetAllFeatures(new Collection <string>()
{
calculateColumn.ColumnName
});
foreach (var feature in features)
{
Feature featureInDecimalDegree = ConvertToWgs84Projection(feature);
var calculatedValue = string.Empty;
double value = 0;
switch (calculateColumn.CalculationType)
{
case CalculatedDbfColumnType.Perimeter:
var perimeterShape = featureInDecimalDegree.GetShape() as AreaBaseShape;
if (perimeterShape != null)
{
value = perimeterShape.GetPerimeter(GeographyUnit.DecimalDegree, calculateColumn.LengthUnit);
}
break;
case CalculatedDbfColumnType.Area:
var areaShape = featureInDecimalDegree.GetShape() as AreaBaseShape;
if (areaShape != null)
{
value = areaShape.GetArea(GeographyUnit.DecimalDegree, calculateColumn.AreaUnit);
}
break;
case CalculatedDbfColumnType.Length:
var lineShape = featureInDecimalDegree.GetShape() as LineBaseShape;
if (lineShape != null)
{
value = lineShape.GetLength(GeographyUnit.DecimalDegree, calculateColumn.LengthUnit);
}
break;
default:
break;
}
calculatedValue = string.Format("{0:N" + calculateColumn.DecimalLength + "}", value);
if (calculatedValue.Length > calculateColumn.Length)
{
calculatedValue = calculatedValue.Substring(0, calculateColumn.Length);
}
featureLayer.EditTools.BeginTransaction();
//calculatedValue = calculatedValue.Substring(0, column.MaxLength);
feature.ColumnValues[calculateColumn.ColumnName] = calculatedValue;
featureLayer.EditTools.Update(feature);
featureLayer.EditTools.CommitTransaction();
}
}
}
}
}
catch (Exception ex)
{
GisEditor.LoggerManager.Log(LoggerLevel.Debug, ex.Message, new ExceptionInfo(ex));
}
finally
{
featureLayer.Close();
featureLayer.SetLayerAccess(LayerAccessMode.Read);
}
});
}
