我正在接受这个错误“mapException未被用户代码处理” [英] i am gettting this error "mappingException was unhandled by user code"

问题描述

Schema specified is not valid. Errors:
LaxmiTatkalEntity.msl(630,12) : error 2019: Member Mapping specified is not valid. The type 'Edm.String[Nullable=False,DefaultValue=,MaxLength=10,Unicode=False,FixedLength=False]' of member 'TotalAmount' in type 'DBLaxmiTatkalModel.TblChallan' is not compatible with 'SqlServer.int[Nullable=False,DefaultValue=]' of member 'TotalAmount' in type 'DBLaxmiTatkalModel.Store.TblChallan'.

Line 230:        public List<TblEmployeeRegistration> getallemployeeId()
Line 231:        {
Line 232:            var data = (from m in objentity.TblEmployeeRegistrations
Line 233:
Line 234:                        select m).ToList();

推荐答案

In your database table you change the  datatype of TotalAmount.
now update your model.edmx model in visual studio

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