异常的详细信息如下:
程序代码：
未处理System.AccessViolationException
Message=尝试读取或写入受保护的内存。这通常指示其他内存已损坏。
Source=System.Data
StackTrace:
在 System.(OdbcStatementHandle StatementHandle, Int16 ColumnNumber, Int16 FieldIdentifier, CNativeBuffer CharacterAttribute, Int16 BufferLength, Int16& StringLength, IntPtr& NumericAttribute)
在 System.Data.Odbc.OdbcStatementHandle.ColumnAttribute(Int32 columnNumber, Int16 fieldIdentifier, CNativeBuffer characterAttribute, Int16& stringLength, SQLLEN& numericAttribute)
在 System.Data.Odbc.OdbcDataReader.GetColAttributeStr(Int32 i, SQL_DESC v3FieldId, SQL_COLUMN v2FieldId, HANDLER handler)
在 System.Data.Odbc.OdbcDataReader.GetName(Int32 i)
在 System.Data.ProviderBase.SchemaMapping.GenerateFieldNames(DataReaderContainer dataReader)
在 System.Data.ProviderBase.SchemaMapping..ctor(DataAdapter adapter, DataSet dataset, DataTable datatable, DataReaderContainer dataReader, Boolean keyInfo, SchemaType schemaType, String sourceTableName, Boolean gettingData, DataColumn parentChapterColumn, Object parentChapterValue)
在 System.(DataSet dataset, DataTable datatable, String srcTable, DataReaderContainer dataReader, Int32 schemaCount, DataColumn parentChapterColumn, Object parentChapterValue)
在 System.(DataSet dataset, DataTable datatable, String srcTable, DataReaderContainer dataReader, Int32 schemaCount, DataColumn parentChapterColumn, Object parentChapterValue)
在 System.(DataSet dataset, DataTable datatable, String srcTable, DataReaderContainer dataReader, Int32 startRecord, Int32 maxRecords, DataColumn parentChapterColumn, Object parentChapterValue)
在 System.(DataTable[] dataTables, IDataReader dataReader, Int32 startRecord, Int32 maxRecords)
在 System.(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
在 System.(DataTable[] dataTables, Int32 startRecord, Int32 maxRecords, IDbCommand command, CommandBehavior behavior)
在 System.(DataTable dataTable)
在 WindowsFormsApplication1.Form1.txtLot_KeyPress(Object sender, KeyPressEventArgs e) 位置 c:\Users\1510014\Desktop\副本\WindowsFormsApplication1\WindowsFormsApplication1\Form1.cs:行号 34
在 System.Windows.Forms.Control.OnKeyPress(KeyPressEventArgs e)
在 System.Windows.Forms.Control.ProcessKeyEventArgs(Message& m)
在 System.Windows.Forms.Control.ProcessKeyMessage(Message& m)
在 System.Windows.Forms.Control.WmKeyChar(Message& m)
在 System.Windows.Forms.Control.WndProc(Message& m)
在 System.Windows.Forms.TextBoxBase.WndProc(Message& m)
在 System.Windows.Forms.TextBox.WndProc(Message& m)
在 System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
在 System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
在 System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
在 System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
在 System.Windows.Forms.(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
在 System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
在 System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
在 System.Windows.Forms.Application.Run(Form mainForm)
在 WindowsFormsApplication1.Program.Main() 位置 c:\Users\1510014\Desktop\副本\WindowsFormsApplication1\WindowsFormsApplication1\Program.cs:行号 18
InnerException:
