I am trying out System.Data.SQLite.LINQ and I am getting crashes with
FirstOrDefault().
I have created a table with the SQL:
CREATE TABLE Person(
Id INTEGER PRIMARY KEY,
Name TEXT NOT NULL,
Age INTEGER NOT NULL
);
The C# class I am reading into is defined as:
[TableAttribute(Name="Person")]
public class Person
{
[ColumnAttribute(Name = "Id", DbType = "INT", IsPrimaryKey = true)]
public int Id { get; set; }
[ColumnAttribute(Name = "Name", DbType = "VARCHAR(MAX)", CanBeNull = false)]
public string Name { get; set; }
[ColumnAttribute(Name = "Age", DbType = "INT", CanBeNull = false)]
public int Age { get; set; }
}
I know that the type of Name does not match the definition, but changing it to
TEXT gives error on comparisons.
My project is at github: https://github.com/trulsu/SQLiteTest
I am using the latest official version (1.0.77.0) on Windows7 with .NET 4.0.
The full error message (including stack trace) is:
----- BEGIN -----
System.Data.SQLite.SQLiteException was unhandled
Message=SQLite error
near ".": syntax error
Source=System.Data.SQLite
ErrorCode=-2147467259
StackTrace:
at System.Data.SQLite.SQLite3.Prepare(SQLiteConnection cnn, String
strSql, SQLiteStatement previous, UInt32 timeoutMS, String& strRemain)
at System.Data.SQLite.SQLiteCommand.BuildNextCommand()
at System.Data.SQLite.SQLiteCommand.GetStatement(Int32 index)
at System.Data.SQLite.SQLiteDataReader.NextResult()
at System.Data.SQLite.SQLiteDataReader..ctor(SQLiteCommand cmd,
CommandBehavior behave)
at System.Data.SQLite.SQLiteCommand.ExecuteReader(CommandBehavior
behavior)
at System.Data.SQLite.SQLiteCommand.ExecuteDbDataReader(CommandBehavior
behavior)
at System.Data.Common.DbCommand.ExecuteReader()
at System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query,
QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs,
Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult)
at System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query,
QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments,
ICompiledSubQuery[] subQueries)
at
System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression
query)
at
System.Data.Linq.Table`1.System.Linq.IQueryProvider.Execute[TResult](Expression
expression)
at System.Linq.Queryable.FirstOrDefault[TSource](IQueryable`1 source,
Expression`1 predicate)
at SqLiteTest.Program.PersonTest(SqLiteDataContext connection) in
C:\source\Prototypes\SqLiteTest\SqLiteTest\Program.cs:line 77
at SqLiteTest.Program.Main() in
C:\source\Prototypes\SqLiteTest\SqLiteTest\Program.cs:line 17
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[]
args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence
assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
----- END -----
Any help would be greatly appreciated,
Truls.
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