private void AutoGenerate()
{
if (string.IsNullOrEmpty(ColumnName))
{
System.Windows.Forms.MessageBox.Show(GisEditor.LanguageManager.GetStringResource("ValueStyleViewModelColumnCanntEmptyMessage"), "Column is Empty");
}
else
{
FeatureLayer featureLayer = RequiredValues.FeatureLayer;
FeatureLayerPlugin featureLayerPlugin = GisEditor.LayerManager.GetLayerPlugins(featureLayer.GetType()).FirstOrDefault() as FeatureLayerPlugin;
if (featureLayerPlugin == null)
{
return;
}
string selectedColumnName = ColumnName;
featureLayer.Open();
if (featureLayer.FeatureSource.CanGetCountQuickly())
{
int count = featureLayer.FeatureSource.GetCount();
if (count > 500000)
{
//MessageBoxResult result = MessageBox.Show(string.Format("{0} contains a large amount of records, it might spend too much time to process. Do you want to continue?", featureLayer.Name), "Info", MessageBoxButton.YesNo, MessageBoxImage.Information);
//if (result == MessageBoxResult.No)
//{
// return;
//}
}
}
//Collection<DistinctColumnValue> distinctColumnValues = null;
if (distinctColumnValues == null)
{
featureLayer.SafeProcess(() =>
{
distinctColumnValues = featureLayer.FeatureSource.GetDistinctColumnValues(selectedColumnName);
});
}
if (distinctColumnValues != null && distinctColumnValues.Count() > 0)
{
SimpleShapeType shpType = SimpleShapeType.Unknown;
featureLayer.SafeProcess(() =>
{
shpType = featureLayerPlugin.GetFeatureSimpleShapeType(featureLayer);
});
foreach (var columnValue in distinctColumnValues)
{
switch (shpType)
{
case SimpleShapeType.Point:
InitValueItem <PointStyle>(StyleCategories.Point, columnValue, selectedColumnName);
break;
case SimpleShapeType.Line:
InitValueItem <LineStyle>(StyleCategories.Line, columnValue, selectedColumnName);
break;
case SimpleShapeType.Area:
InitValueItem <AreaStyle>(StyleCategories.Area, columnValue, selectedColumnName);
break;
case SimpleShapeType.Unknown:
InitValueItem <Style>(StyleCategories.Composite, columnValue, selectedColumnName);
break;
}
}
var itemSourceList = ValueItems.OrderBy(itemValue => itemValue.ValueItem.Value).ToList();
ValueItems.Clear();
foreach (var item in itemSourceList.Where(i => !String.IsNullOrEmpty(i.MatchedValue)))
{
ValueItems.Add(item);
}
foreach (var item in itemSourceList.Where(i => String.IsNullOrEmpty(i.MatchedValue)))
{
ValueItems.Add(item);
}
SyncActualValueItems();
RaisePropertyChanged("ValueItems");
}
else
{
System.Windows.Forms.MessageBox.Show(GisEditor.LanguageManager.GetStringResource("ValueStyleViewModelColumnNoValueMatchedMessage"));
}
}
}
