Question

我正在处理一个应用程序，我编写了下面的代码，

Public Function CreateDatatable(ByVal SqlQuery As String, ByVal strTable As String, Optional ByVal OrderbyField As String = "") As DataTable

        If InitDB() Then
            Try
                Dim sqlAdapter As New MySqlDataAdapter()
                Dim dt As New DataTable()
                If SqlQuery = "" Then SqlQuery = "Select * from " & strTable & IIf(OrderbyField <> "", " order by " & OrderbyField, "")
                Dim cmd As New MySqlCommand(SqlQuery, MySQLCon)
                cmd.CommandTimeout = 18000
                sqlAdapter.SelectCommand = cmd
                dt.TableName = strTable
                sqlAdapter.Fill(dt)
                CreateDatatable = dt
            Catch ex As Exception
                ServiceLog.WriteEntry("CreateDatatable Exception:" & ex.Message)
            End Try
        Else
            CreateDatatable = Nothing
        End If

    End Function

运行代码后发生此错误。

MySql.Data.MySqlClient.MySqlException = {“期间遇到致命错误命令执行。“} at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader（CommandBehavior behavior） at MySql.Data.MySqlClient.MySqlCommand.ExecuteDbDataReader（CommandBehavior behavior）在System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader（CommandBehavior行为）在System.Data.Common.DbDataAdapter.FillInternal（DataSet数据集，DataTable [] datatables，Int32 startRecord，Int32 maxRecords，String srcTable，IDbCommand命令，CommandBehavior行为）在System.Data.Common.DbDataAdapter.Fill（DataTable [] dataTables，Int32 startRecord，Int32 maxRecords，IDbCommand命令，CommandBehavior行为）在System.Data.Common.DbDataAdapter.Fill（DataTable dataTable） at AgilityNewsService.clsDataware_MySQL.CreateDatatable（String SqlQuery，String strTable，String OrderbyField）在C：\ ISMSCleanDesktop \ DesktopBkup_Tue10-22-2013 \ AgilityNewsService \ AgilityNewsService \ AgilityNewsService \ clsDataware_MySQL.vb：第48行

如何解决上述错误？

如何解决vb.net中的致命异常？

0 个答案: