DB connection issue

[Finalsky]

"Yesterday, I used Spire.DataExport to export data from database, but I can't connect my database, here I give you my code:
OleDbConnection oleDbConnection = new OleDbConnection();
oleDbConnection.ConnectionString = this.txtCollectionString.Text;
System.Data.OleDb.OleDbCommand oleDbCommand = new System.Data.OleDb.OleDbCommand();
oleDbCommand.CommandText = this.txtCommandText.Text;
Can you help me?? Thank you in advance."

[iceblue support]

I have realized your problem. After initializing the oleDbConnection and oleDbCommand, you should connect them with the following code: oleDbCommand.Connection = oleDbConnection;