Visual Studio의 ConnectionString

Question

데이터 집합을 반환하는 메서드를 수행하려고하지만 연결 문자열이 작동하지 않습니다.

가 무슨 일이야

public DataSet list() 
    { 
     // First Create a New Connection 
     System.Data.SqlClient.SqlConnection sqlConnection1 = new System.Data.SqlClient.SqlConnection(); 
     // Now Pass a Connection String To the Connection 


     sqlConnection1.ConnectionString = "Data Source=mysite.com.br;User ID=admin_devr;Password=123456;Initial Catalog="rave_dbteste" providerName="System.Data.OleDb"; 
     // Now the Select statement you want to run 
     string select = "select * from table"; 
     // Create an Adapter 
     SqlDataAdapter da = new SqlDataAdapter(select, sqlConnection1); 
     // Create a New DataSet 
     DataSet ds = new DataSet(); 
     // Fill The DataSet With the Contents of the Stock Table 
     da.Fill(ds, "cdestacionamento"); 
     // Now Return ds which is a DataSet 
     return (ds); 
    } 

:

나는이 봤어?

Answer 1

난 당신이

sqlConnection1.Open(); 

항상 오류 메시지가 표시되는 내용이

if (sqlConnection1.State == ConnectionState.Closed) 
        sqlConnection1.Open();