Issues with dapper query syntax

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Hi All

little assistance here with my query using dapper, been getting error Message = "ORA-00936: missing expression\n" on my query. I would like to know what am I missing here?

What I have tried:

C#

public class LocationDto  
        {  
            public int LocationId { get; set; }  
            public int RouteId { get; set; }  
            public string StartTime { get; set; }  
            public string Location { get; set; }  
        }  
// Query Below  
    using (OracleConnection connection = new OracleConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))  
                {  
     try {  
                        var x = connection.QueryAsync<LocationDto>("Select ROUTE_ID as RouteId,  SCHEDULE_STOP as Location, START_TIME as StartTime From SCHEDULE WHERE ROUTE_ID = @Id", new { input.RouteId }).Result.ToList();  
      
                    }  
                    catch (Exception ex)  
                    {   
                      
                    }  
    }

Posted 11-Nov-20 0:06am

Anele Ngqandu

Updated 11-Nov-20 0:43am

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Richard Deeming · Answer 1 · 2020-11-11T00:45:00

IIRC, Dapper[^] matches the query parameters based on the name of the property of the anonymous object.

Your query parameter is called Id, but your property is called RouteId.

You can either change the parameter name, or change the property name.

C#

var x = connection.QueryAsync<LocationDto>("Select ROUTE_ID as RouteId,  SCHEDULE_STOP as Location, START_TIME as StartTime From SCHEDULE WHERE ROUTE_ID = @RouteId", new { input.RouteId }).Result.ToList();

// Or:
var x = connection.QueryAsync<LocationDto>("Select ROUTE_ID as RouteId,  SCHEDULE_STOP as Location, START_TIME as StartTime From SCHEDULE WHERE ROUTE_ID = @Id", new { Id = input.RouteId }).Result.ToList();