Exception Info: System.NullReferenceException at MySql.Data.MySqlClient.Driver.NextResult(Int32, Boolean)
at MySql.Data.MySqlClient.MySqlDataReader.NextResult
浏览 213提问于2021-03-29得票数 0
回答已采纳
_SslStream.ProcessRead(Byte[], Int32, Int32, System.Net.AsyncProtocolRequest) at MySql.Data.MySqlClient.TimedStream.Read(Byte[], Int32, Int32)
at MySql.Data.MySqlClient.MySqlStr
浏览 6提问于2019-09-06得票数 1
1回答
(Int64，Int32的System.Buffer.BlockCopy，Microsoft.SqlServer.Management.DataTools.UI.QueryResult.SpecialDataTypeByRef，Int32 ByRef)，(布尔)( Microsoft.SqlServer.Management.DataTools.UI.QueryResult.DiskStorageView.GetCellData(Int64，Int32) )( Micr
浏览 2提问于2016-01-04得票数 1
回答已采纳
Microsoft.Win32.SafeHandles.SafeWaitHandle, UInt32, Boolean, Boolean) [...], Int32) System.Windows.Forms.Control(IntPtr,
浏览 3提问于2009-12-03得票数 2
例外信息: BluePrism.ApplicationManager.JAB.WAB32.getAccessibleContextFromHWND(Int32，Int32 ByRef，Int64 ByRefBluePrism.ApplicationManager.ApplicationManagerUtilities.clsQuery，的BluePrism.ApplicationManager.JAB.JABWrapper.GetContextFromWindow(Int32BluePr
浏览 3提问于2019-05-04得票数 0
1回答
工具条崩溃
、、、
, Int32, Int32, Int32) at System.Windows.Forms.NativeWindow.Callback(IntPtr, Int32, IntPtr, IntPtr) at System.W
浏览 0提问于2012-10-27得票数 1
回答已采纳
SetReadFileOffset(NO, MFTCluster * SectperCluster * BytesPerSect)Private Sub SetReadFileOffset(ByRefNO As System.Threading.NativeOverlapped, ByRef curBig As Int64) Dim highoffset As Int32</
浏览 1提问于2014-02-01得票数 0
, Int32, Int32, Int32, Int32, Int32) at System.Windows.Forms.Control.WmWindowPosChanged(System.Windows.Forms.Message ByRef)
at System.Windows.Forms.Control.WndProc(System.Windows.Forms.Messa
浏览 7提问于2020-06-30得票数 2
回答已采纳
1回答
-VB.Net代码通过Fortran dll调用Dim a_in(,) As Double --- Input array with valuesDim a_vOUT(,) as Double ----Output array return from Fortran77 DLL
Dim a_Flgs(,) as Int32flg As integer,ByRef a_in As Double, ByRef a_PN As Dou
浏览 2提问于2013-12-11得票数 1
我的类中有一个方法，它返回数据的列表 Dim theProgramYearID As Int32= Convert.ToInt32(lstProgramYear.SelectedValue) Dim theCategoryID As Int32
浏览 3提问于2014-12-07得票数 0
回答已采纳
ByRef) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(IntPtr, Int32, Int32)
at System.Windows.Forms.Application+ThreadContext.RunMessageLoopInner(Int32
浏览 2提问于2013-09-11得票数 3
回答已采纳
我得到的错误是“int16类型的对象与int32类型不兼容”。ActiveX exe中的函数是
Public Function GetMessages(ByRef uKeyCode() As Integer, ByRef uMouseButton() As Integer, ByRef uDown() As Boolean, ByRef uInjected() As Boolean, ByRef uExtraInfo() As String, ByRef uX() As
浏览 1提问于2013-09-20得票数 1
回答已采纳
，Int32 ByRef，IntPtr)( System.Web.Hosting.UnsafeIISMethods.MgdIndicateCompletion(IntPtr，System.Web.RequestNotificationStatus ByRef)
Microsoft.Win32.Win32Native.ReadFile(Microsoft.Win32.SafeHandles.SafeFileHandle，Byte*，Int32，Int32
浏览 3提问于2014-04-13得票数 0
回答已采纳
ByRef, System.Windows.FontWeight ByRef, System.Windows.FontStretch ByRef) at System.Windows.Media.FontFamily.FindFirstFontFamilyAndFace(Sy
浏览 3提问于2014-05-09得票数 0
回答已采纳
2回答
_InvokeMethodFast(System.IRuntimeMethodInfo, System.Object, System.Object[], System.SignatureStruct ByRef)000000000008fa60 000007feef60ef10 DomainBoundILStubClass.IL_STUB_
浏览 0提问于2010-10-06得票数 1
回答已采纳
在WPF应用程序中使用USB设备，我可以成功地连接和发送命令到设备。设备只接收命令，没有回复，所以我所需要的只是一个EndpointWriter来与它通信。MyUsbDevice = UsbDevice.OpenUsbDevice(MyUsbFinder);if (!ReferenceEquals(wholeUsbDevice, null)) wholeUsbDevice.SetConfiguratio
浏览 0提问于2013-12-30得票数 4
回答已采纳
System.AccessViolationExceptionat System.Windows.Forms.ComboBox.WndProc(System.Windows.Forms.Message ByRef)at System.Windows.Fo
浏览 4提问于2014-08-07得票数 2
2回答
自定义SQL语句
、、
Public Sub updateRecord(ByRef procedure As String, ByRef parameters As String, ByRef obj As String, ByRefLastName As String, ByRef FirstName As String, ByRef MiddleInitial As String, ByRef Age As String, ByRefcmd.Parameters.AddW
浏览 0提问于2015-07-13得票数 2
回答已采纳
2回答
例如，调用
Private Declare Function waveOutOpen Lib "winmm.dll" (ByRef lphWaveOut As Int32, ByVal uDeviceIDAs Int32, ByRef lpFormat As WAVEFORMATEX, ByVal dwCallback As WaveDelegate, ByVal dwInstance As Int32, ByVal dwFlags As Int32) As
浏览 2提问于2010-02-25得票数 0
回答已采纳
, IntPtr*, Int32, IntPtr*, Int32, System.Runtime.CompilerServices.ObjectHandleOnStack)System.Reflection.CustomAttributeRecord, System.Reflection.MetadataImport, System.Reflection.Assembly ByRefSystem.Reflection.MetadataToken, System.RuntimeType, Boolean, System.Object[], S
浏览 2提问于2016-12-14得票数 3
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