Question

I have used this piece of code for connecting to the database..It is showing error like The ConnectionString property has not been initialized.

Dim sConnString As String = "user id=" + sUserID + ";password=" + sPwd + ";initial catalog=" + sDatabase + ";Connect    Timeout = 30" + ";Pooling=true;Max Pool Size=" + MaxPoolSize + ";Min Pool Size=" + MinPoolSize + ";"

            Dim Conn As New SqlConnection()
            Dim cmd As New SqlCommand()
            cmd.CommandText = "INSERT INTO NEC_Customer_Mst(Customer_Code,Customer_Name) VALUES(Customercode,Customername)"
            cmd.Connection = Conn
            Conn.Open()
            cmd.ExecuteNonQuery()
            Conn.Close()

Any suggestion?

Answer 1

I would change your code so that you use a using statement. This way it will clean up resources when it has finished.

Dim sConnString As String = "user id=" + sUserID + ";password=" + sPwd + ";initial catalog=" + sDatabase + ";Connect Timeout=30;Pooling=true;Max Pool Size=" + MaxPoolSize + ";Min Pool Size=" + MinPoolSize + ";"              

Using Conn As New SqlConnection(sConnString)
    Using cmd As New SqlCommand()             
        cmd.CommandText = "INSERT INTO NEC_Customer_Mst(Customer_Code,Customer_Name) VALUES(Customercode,Customername)"             
        cmd.Connection = Conn             
        Conn.Open()             
        cmd.ExecuteNonQuery() 
    End Using
End Using