无法在Crystal Reports查看器中加载数据库信息错误

问题描述

我目前正在使用visual studio 2010和MS access DB。我安装了水晶报告2008.我使用Windows窗体和水晶报告查看器控件。在按钮上单击我想在水晶报表查看器中显示数据库中的报表。但我遇到以下错误消息。

 --------------------------- 
 Crystal Reports Viewer 
 --------------------------- 
无法加载数据库信息。 
详细信息：无法加载数据库连接器crdb_p2bbnd.dll。可能未安装此数据库类型的数据库客户端的正确版本。

这里是代码

 string connetionString = null; 
 OleDbConnection cnn; 
 DataTable OledbDt = new DataTable（数据库中的表名）; 
 OleDbDataAdapter OleDbAdapter = new OleDbDataAdapter（）; 
 string sql = null; 
 connetionString =Provider = Microsoft.Jet.OLEDB.4.0; Data Source = XXXXX.mdb;; 
 sql =select * from table name from the database; 
 cnn = new OleDbConnection（connetionString）; 
尝试
 {
 cnn.Open（）; 
 OleDbAdapter = new OleDbDataAdapter（sql，cnn）; 
 OleDbAdapter.Fill（OledbDt）; 
 ReportDocument rptDoc = new ReportDocument（）; 
我的rpt文件名abc = new我的rpt文件名（）; 
 abc.SetDataSource（OledbDt）; 
 crystalReportViewer2.ReportSource = abc; 
 crystalReportViewer2.RefreshReport（）; 
 OleDbAdapter.Dispose（）; 
 cnn.Close（）; 
} 
 catch（Exception ex）
 {
 MessageBox.Show（ex.Message，Error）; 
} 
 
} 
 

i搜索了我的整个系统，但我没有找到要添加的dll。我搜索了错误消息，但得到了reuslts，没有这样的DLL。请尽快帮助我解决这个问题。非常感谢提前

解决方案

Hi,
I am currently working with visual studio 2010 and MS access DB. i ahve installed crystal reports 2008. I use windows forms and a crystal reports viewer control in it. On a button click i want to show a report from database in a crystal reports viewer. But i encounter the following error message.

---------------------------
Crystal Reports Viewer
---------------------------
Failed to load database information.
Details: The database connector 'crdb_p2bbnd.dll' could not be loaded. The correct version of the database client for this database type might not be installed.

here is the code

string connetionString = null;
           OleDbConnection cnn;
           DataTable OledbDt = new DataTable("Table Name from the database");
           OleDbDataAdapter OleDbAdapter = new OleDbDataAdapter();
           string sql = null;
           connetionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=XXXXX.mdb;";
           sql = "select * from Table name from the database";
           cnn = new OleDbConnection(connetionString);
           try
           {
               cnn.Open();
               OleDbAdapter = new OleDbDataAdapter(sql,cnn);
               OleDbAdapter.Fill(OledbDt);
               ReportDocument rptDoc = new ReportDocument();
               my rpt file name abc = new my rpt file name();
               abc.SetDataSource(OledbDt);
               crystalReportViewer2.ReportSource = abc;
               crystalReportViewer2.RefreshReport();
               OleDbAdapter.Dispose();
               cnn.Close();
           }
           catch (Exception ex)
           {
               MessageBox.Show(ex.Message,"Error");
           }

       }

i searched my entire system but i coudn't find the dll to be added here. i googled out the error message but got reuslts with there is no such dll. kindly help me out with this issue as soon as possible. Many Thanks in advance

解决方案

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