ArcMapAddinCoordinateConversion.ViewModels.MainViewModel.GetCoordinateType C# (CSharp) Method

        private CoordinateType GetCoordinateType(string input, out ESRI.ArcGIS.Geometry.IPoint point)
        {
            point = new PointClass();
            var cn = point as IConversionNotation;
            Type t = Type.GetTypeFromProgID("esriGeometry.SpatialReferenceEnvironment");
            System.Object obj = Activator.CreateInstance(t);
            ISpatialReferenceFactory srFact = obj as ISpatialReferenceFactory;

            // Use the enumeration to create an instance of the predefined object.

            IGeographicCoordinateSystem geographicCS =
                srFact.CreateGeographicCoordinateSystem((int)
                esriSRGeoCSType.esriSRGeoCS_WGS1984);

            point.SpatialReference = geographicCS;

            try
            {
                cn.PutCoordsFromDD(input);
                return CoordinateType.DD;
            }
            catch { }

            try
            {
                cn.PutCoordsFromDDM(input);
                return CoordinateType.DDM;
            }
            catch { }

            try
            {
                cn.PutCoordsFromDMS(input);
                return CoordinateType.DMS;
            }
            catch { }

            try
            {
                cn.PutCoordsFromGARS(esriGARSModeEnum.esriGARSModeCENTER, input);
                return CoordinateType.GARS;
            }
            catch { }

            try
            {
                cn.PutCoordsFromGARS(esriGARSModeEnum.esriGARSModeLL, input);
                return CoordinateType.GARS;
            }
            catch { }

            CoordinateGARS gars;
            if(CoordinateGARS.TryParse(input, out gars))
            {
                try
                {
                    cn.PutCoordsFromGARS(esriGARSModeEnum.esriGARSModeCENTER, gars.ToString("", new CoordinateGARSFormatter()));
                    return CoordinateType.GARS;
                }
                catch { }
            }

            try
            {
                cn.PutCoordsFromMGRS(input, esriMGRSModeEnum.esriMGRSMode_Automatic);
                return CoordinateType.MGRS;
            }
            catch { }
            try
            {
                cn.PutCoordsFromMGRS(input, esriMGRSModeEnum.esriMGRSMode_NewStyle);
                return CoordinateType.MGRS;
            }
            catch { }
            try
            {
                cn.PutCoordsFromMGRS(input, esriMGRSModeEnum.esriMGRSMode_NewWith180InZone01);
                return CoordinateType.MGRS;
            }
            catch { }
            try
            {
                cn.PutCoordsFromMGRS(input, esriMGRSModeEnum.esriMGRSMode_OldStyle);
                return CoordinateType.MGRS;
            }
            catch { }
            try
            {
                cn.PutCoordsFromMGRS(input, esriMGRSModeEnum.esriMGRSMode_OldWith180InZone01);
                return CoordinateType.MGRS;
            }
            catch { }

            // mgrs try parse
            CoordinateMGRS mgrs;
            if (CoordinateMGRS.TryParse(input, out mgrs))
            {
                try
                {
                    cn.PutCoordsFromMGRS(mgrs.ToString("", new CoordinateMGRSFormatter()), esriMGRSModeEnum.esriMGRSMode_NewStyle);
                    return CoordinateType.MGRS;
                }
                catch { }
            }

            try
            {
                cn.PutCoordsFromUSNG(input);
                return CoordinateType.USNG;
            }
            catch { }

            CoordinateUSNG usng;
            if(CoordinateUSNG.TryParse(input, out usng))
            {
                try
                {
                    cn.PutCoordsFromUSNG(usng.ToString("", new CoordinateMGRSFormatter()));
                    return CoordinateType.USNG;
                }
                catch { }
            }

            try
            {
                cn.PutCoordsFromUTM(esriUTMConversionOptionsEnum.esriUTMAddSpaces, input);
                return CoordinateType.UTM;
            }
            catch { }

            try
            {
                cn.PutCoordsFromUTM(esriUTMConversionOptionsEnum.esriUTMNoOptions, input);
                return CoordinateType.UTM;
            }
            catch { }

            try
            {
                cn.PutCoordsFromUTM(esriUTMConversionOptionsEnum.esriUTMUseNS, input);
                return CoordinateType.UTM;
            }
            catch { }

            CoordinateUTM utm;
            if(CoordinateUTM.TryParse(input, out utm))
            {
                try
                {
                    cn.PutCoordsFromUTM(esriUTMConversionOptionsEnum.esriUTMNoOptions, utm.ToString("", new CoordinateUTMFormatter()));
                    return CoordinateType.UTM;
                }
                catch { }
            }

            return CoordinateType.Unknown;
        }