An OLE DB Provider was not specified in the ConnectionString. 'Provider=SQLOLEDB;

问题:

i trying to run query using C#, i am getting the following problem

An OLE DB Provider was not specified in the ConnectionString. An example would be, 'Provider=SQLOLEDB;

my code

string strConString = System.Configuration.ConfigurationManager.ConnectionStrings["WorkflowConnStr"].ConnectionString.ToString();  string sqlstr = "select * from table"         OleDbConnection myConnection = new OleDbConnection(strConString); try      {myConnection.Open();} catch (Exception err)       { System.Diagnostics.Debug.WriteLine(err.Message); }  OleDbCommand myCommand = new OleDbCommand(sqlstr, myConnection); OleDbDataReader reader = myCommand.ExecuteReader(); 

web.config

any suggestion ?

回答1:

Try adding this to your connection string,

Provider=SQLNCLI10.1 

So it would be;

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