将mysql tinyint与亚音速3和datagridview绑定时出现问题
我用亚音速创建了一个数据层。但是，当我选择数据时，会出现以下异常将mysql tinyint与亚音速3和datagridview绑定时出现问题,mysql,subsonic,subsonic3,Mysql,Subsonic,Subsonic3,我用亚音速创建了一个数据层。但是，当我选择数据时，会出现以下异常 System.ArgumentException was unhandled Message="Object of type 'System.Boolean' cannot be converted to type 'System.SByte'." Source="mscorlib" StackTrace: at System.RuntimeType.CheckValue(Object value
System.ArgumentException was unhandled
Message="Object of type 'System.Boolean' cannot be converted to type 'System.SByte'."
Source="mscorlib"
StackTrace:
at System.RuntimeType.CheckValue(Object value, Binder binder, CultureInfo culture, BindingFlags invokeAttr)
at System.Reflection.MethodBase.CheckArguments(Object[] parameters, Binder binder, BindingFlags invokeAttr, CultureInfo culture, Signature sig)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Reflection.RuntimePropertyInfo.SetValue(Object obj, Object value, BindingFlags invokeAttr, Binder binder, Object[] index, CultureInfo culture)
at System.Reflection.RuntimePropertyInfo.SetValue(Object obj, Object value, Object[] index)
at SubSonic.Extensions.Database.Load[T](IDataReader rdr, T item, List`1 ColumnNames)
at SubSonic.Extensions.Database.ToEnumerable[T](IDataReader rdr, List`1 ColumnNames)
at SubSonic.Linq.Structure.DbQueryProvider.Execute[T](QueryCommand`1 query, Object[] paramValues)
at lambda_method(ExecutionScope )
at SubSonic.Linq.Structure.DbQueryProvider.Execute(Expression expression)
at SubSonic.Linq.Structure.QueryProvider.System.Linq.IQueryProvider.Execute(Expression expression)
at SubSonic.Linq.Structure.Query`1.GetEnumerator()
at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at TorontoTrader.Data.Ver2.ninjascan.Find(Expression`1 expression) in E:\TradingTools\CODE\TorontoTraderDataVer2\TorontoTraderDataVer2\ActiveRecord.cs:line 4148
at TorontoTraderAlerts.Form1.Form1_Load(Object sender, EventArgs e) in E:\TradingTools\CODE\TorontoTraderDataVer2\TorontoTraderAlerts\Form1.cs:line 24
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Form.OnCreateControl()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ContainerControl.WndProc(Message& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.SafeNativeMethods.ShowWindow(HandleRef hWnd, Int32 nCmdShow)
at System.Windows.Forms.Control.SetVisibleCore(Boolean value)
at System.Windows.Forms.Form.SetVisibleCore(Boolean value)
at System.Windows.Forms.Control.set_Visible(Boolean value)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at TorontoTraderAlerts.Program.Main() in E:\TradingTools\CODE\TorontoTraderDataVer2\TorontoTraderAlerts\Program.cs:line 18
at System.AppDomain._nExecuteAssembly(Assembly 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)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
the code segment wher its throwing it is
public static IList<ninjascan> Find(Expression<Func<ninjascan, bool>> expression) {
var repo = GetRepo();
return repo.Find(expression).ToList();
}
the column in Mysql is TinyInt (Length=1)
dunno how to fix it.
在mysql连接字符串中添加一个视为布尔值的参数，例如：
Server=srv;Database=db;Uid=user;Pwd=pass;Treat Tiny As Boolean=true;
但我很确定false是早期版本中的默认值。在mysql连接字符串中添加一个Treat Tiny As Boolean参数，例如：
Server=srv;Database=db;Uid=user;Pwd=pass;Treat Tiny As Boolean=true;