Question

对于我的VB.Net项目，我试图添加对SQLite数据库的支持。我已经通过NuGet和VS 2010安装了System.Data.SQLite.dll。

我可以成功连接到SQLite数据库并直接针对它运行一些查询。但是，我无法将任何数据加载到我的DataSourcesTableAdapters中。我得到一个“'System.Data.SQLite'提供程序未在本地计算机上注册。”我试图填写数据表时出错。

使用原始MS Access数据文件时，一切正常。

目标CPU是x86

System.Data.SQLite.dll被复制到本地app文件夹

Stack Trace:
   at System.Data.OleDb.OleDbServicesWrapper.GetDataSource(constr As OleDbConnectionString, datasrcWrapper As DataSourceWrapper&)
   at System.Data.OleDb.OleDbConnectionInternal..ctor(constr As OleDbConnectionString, connection As OleDbConnection)
   at System.Data.OleDb.OleDbConnectionFactory.CreateConnection(options As DbConnectionOptions, poolGroupProviderInfo As Object, pool As DbConnectionPool, owningObject As DbConnection)
   at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(owningConnection As DbConnection, poolGroup As DbConnectionPoolGroup)
   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(owningConnection As DbConnection)
   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(outerConnection As DbConnection, connectionFactory As DbConnectionFactory)
   at System.Data.OleDb.OleDbConnection.Open()
   at System.Data.Common.DbDataAdapter.QuietOpen(connection As IDbConnection, originalState As ConnectionState&)
   at System.Data.Common.DbDataAdapter.FillInternal(dataset As DataSet, datatables As DataTable[], startRecord As Int32, maxRecords As Int32, srcTable As String, command As IDbCommand, behavior As CommandBehavior)
   at System.Data.Common.DbDataAdapter.Fill(dataTables As DataTable[], startRecord As Int32, maxRecords As Int32, command As IDbCommand, behavior As CommandBehavior)
   at System.Data.Common.DbDataAdapter.Fill(dataTable As DataTable)
   at LisanoEnterprises.GrandPrix.DataSourcesTableAdapters.RostersTableAdapter.GetDataByRound(Round As Int32)
   at LisanoEnterprises.GrandPrix.ReportCtrl.ViewRosters(objReportCriteria As ReportCriteria)
   at LisanoEnterprises.GrandPrix.frmReports.ViewRoster()
   at LisanoEnterprises.GrandPrix.frmReports.ViewReport(iCategory As Int32, iReportNum As Int32)
   at LisanoEnterprises.GrandPrix.frmReports.btnMainView_Click(sender As Object, e As EventArgs)

Exception Hierarchy:
Top Level   System.InvalidOperationException    Void GetDataSource(System.Data.OleDb.OleDbConnectionString, System.Data.OleDb.DataSourceWrapper ByRef)
    The 'System.Data.SQLite' provider is not registered on the local machine.

Answer 1

我设法解决了这个问题。我没有使用表适配器，而是从数据读取器加载数据表。

  Dim reader As IDataReader = _dbCtrl.ExecuteReader(sSQL)
  Dim dt As New DataTable

  dt.Load(reader)

  reader.Close()

DataSourcesTableAdapters与SQLite

1 个答案: