ArcGIS Pro定制和开发-执行GP环境变量的设置

var in_table = main_lyr;
var out_table = Path.Combine(Project.Current.DefaultGeodatabasePath, GVar.FtrLyr + " Results");
var statistics_fields = [["Shape_Area", "SUM"]]; //[['FEET', 'SUM']]";
var case_field = "Diameter"; // "['Diameter']";
var args = Geoprocessing.MakeValueArray(in_table, out_table, statistics_fields, case_field);
var sp_ref = SpatialReferenceBuilder.CreateSpatialReference(102629); // NAD83 SP AL E FIPS 0101 Feet
var envi = Geoprocessing.MakeEnvironmentArray(outputCoordinateSystem: sp_ref);
 
Geoprocessing.ExecuteToolAsync("Statistics_analysis", args, envi, null, null, GPExecuteToolFlags.Default);

private async Task<bool> ExecuteAddFieldTool(KeyValuePair<string, string> field, string fieldType, int? fieldLength = null, bool isNullable = true)  
        {  
            try  
            {  
                var inTable = DeltaLayer.Name;  
                var workspaceName = ((IInternalMapMember)DeltaLayer).WorkspaceName;  
  
  
                var parameters = Geoprocessing.MakeValueArray(inTable, field.Key, fieldType.ToUpper(), null, null,  
                    fieldLength, field.Value, isNullable ? "NULABLE" : "NON_NULLABLE");  
                var env = Geoprocessing.MakeEnvironmentArray(workspace: workspaceName);  
                var cts = new CancellationTokenSource();  
                var results = Geoprocessing.ExecuteToolAsync("management.AddField",  
                    parameters, env, cts.Token, (eventName, o) =>  
                    {  
                        switch (eventName)  
                        {  
                            case "OnValidate":  
                                if (((IGPMessage[])o).Any(it => it.Type == GPMessageType.Warning))  
                                {  
                                    var fieldExists = ((IGPMessage[])o).FirstOrDefault(it => it.ErrorCode == 12);  
                                    if (fieldExists != null)  
                                    {  
                                        //MessageBox.Show($"{fieldExists.Text}");  
                                        cts.Cancel();  
                                    }  
                                }  
                                break;  
                        }  
                    });  
                await results;  
                return true;  
            }  
            catch (Exception ex)  
            {  
                System.Windows.MessageBox.Show(ex.ToString());  
                return false;  
            }  
        }