How to set Spatial Reference of Feature Class - ArcGIS Pro SDK

Question

I have created a feature class with the code below, but it creates it with an Unknown Spatial Reference. I know you can use other shapefiles/prj files as input to the Create Feature Class geoprocessing tool, but I'm trying to avoid creating a template for every spatial reference I might end up needing. I would rather be able to set the spatial reference from C# code after it's created. I've learned of a QueryDescription, via Database.GetQueryDescription() but the datastore is a FileGeodatabase, not an sde. public async Task<string> CreateTargetPoint() { string tool_path = @"management.CreateFeatureClass"; string outpath = Project.Current.DefaultGeodatabasePath; var args = Geoprocessing.MakeValueArray(outpath, "target_point", "POINT"); var result = await Geoprocessing.ExecuteToolAsync(tool_path, args); return result.ReturnValue; } //.... var result = await CreateTargetPoint(); var gdbPath = new FileInfo(result).Directory; var connectionPath = new FileGeodatabaseConnectionPath(new Uri(gdbPath.FullName)); using (var geodatabase = new Geodatabase(connectionPath)) using (var featureClass = geodatabase.OpenDataset<FeatureClass>("target_point")) { var fcDef = featureClass.GetDefinition(); var rowBuffer = featureClass.CreateRowBuffer(); rowBuffer[fcDef.GetShapeField()] = centerpoint; featureClass.CreateRow(rowBuffer); viewModel.TargetSite = LayerFactory.Instance.CreateFeatureLayer(featureClass, exportMap, 0, "Target Site"); }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

RichRuh · Accepted Answer

Hi Devon,

No, you cannot change the spatial reference of a feature class with the C# SDK.  All DDL (data definition language) takes place through Python or geoprocessing.

The QueryDescription class is used for exposing spatial data as a temporary in-memory table, not for changing what is stored in the geodatabase.

--Rich