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- CREATE TABLE Workflow
- (
- Guid uniqueidentifier not null,
- State xml not null
- )
- public class Workflow
- {
- public Guid InstanceId { get;set; }
- public XDocument State { get;set; }
- }
- Error parsing column 1 (State= - String)
- at Dapper.SqlMapper.ThrowDataException(Exception ex, Int32 index, IDataReader reader, Object value) in d:\Dev\dapper-dot-net\Dapper NET40\SqlMapper.cs:line 4045
- at Deserialize038b29f4-d97d-4b62-b45b-786bd7d50e7a(IDataReader )
- at Dapper.SqlMapper.<QueryImpl>d__11`1.MoveNext() in d:\Dev\dapper-dot-net\Dapper NET40\SqlMapper.cs:line 1572
- at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
- at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
- at Dapper.SqlMapper.Query[T](IDbConnection cnn, String sql, Object param, IDbTransaction transaction, Boolean buffered, Nullable`1 commandTimeout, Nullable`1 commandType) in d:\Dev\dapper-dot-net\Dapper NET40\SqlMapper.cs:line 1443
- at MyProject.DapperBase.Query[TResult](String command, DynamicParameters parameters, IDbTransaction transaction, Boolean buffered, Int32 commandTimeout) in d:\MyProject\DapperBase.cs:line 122
- at MyProject.WorkflowData.Get(Guid identifier) in d:\MyProject\WorkflowData.cs:line 41
- at MyProject.WorkflowLogic.Save(Workflow workflow) in d:\MyProject\WorkflowLogic.cs:line 34
- at MyProject.WorkflowsController.Save(Guid id, WorkflowRequest request) in d:\MyProject\WorkflowsController.cs:line 97
- InnerException: Invalid cast from 'System.String' to 'System.Xml.Linq.XDocument'.
- at System.Convert.DefaultToType(IConvertible value, Type targetType, IFormatProvider provider)at System.String.System.IConvertible.ToType(Type type, IFormatProvider provider)
- at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
- at System.Convert.ChangeType(Object value, Type conversionType)
- at Deserialize038b29f4-d97d-4b62-b45b-786bd7d50e7a(IDataReader )
- public class Workflow
- {
- public Guid InstanceId { get;set; }
- public XDocument StateIn { set { State = value.ToString(); } }
- public string State { get;set; }
- public XDocument StateOut { get { return XDocument.Parse(State); } }
- }
- public class XDocumentTypeHandler : SqlMapper.TypeHandler<XDocument>
- {
- public override void SetValue(IDbDataParameter parameter, XDocument value)
- {
- // set value in db parameter.
- }
- public XDocument Parse(object value)
- {
- // parse value from db to an XDocument.
- }
- }
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