Question

I have a code for inserting values in ASP.net using vb. I’m having problem with my code says login failed, cannot open database.

Dim struser, strpass, stremail As String
            struser = TextBox1.Text
            strpass = TextBox2.Text
            stremail = TextBox4.Text
            'declaring sql connection. 

            Dim thisConnection As New SqlConnection(ConfigurationManager.ConnectionStrings("DatabaseConnection").ConnectionString)

            'Create Command object
            Dim nonqueryCommand As SqlCommand = thisConnection.CreateCommand()


            Try
                ' Open Connection
                thisConnection.Open()

                Dim strcommand As String
                strcommand = "Insert into Account (Username,Password, Email) values ('" + struser + "','" + strpass + "','" + stremail + "')"

                Dim sqlcomm As New SqlCommand(strcommand, thisConnection)
                Dim o As String = sqlcomm.ExecuteNonQuery()


            Catch ex As SqlException
                ' Display error
                MsgBox(ex.ToString())
            Finally
                ' Close Connection
                MsgBox("Success")
                thisConnection.Close()


            End Try

connection string:

<add name="DatabaseConnection" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=o2database.mdf;Integrated Security=SSPI" providerName="System.Data.SqlClient"/>

Answer 1

1) Initial catalog must be name of the schema you are accessing

2) You may use ‘Server Explorer’ & try to just connect to the database
from there. Once succeeded just copy the connection string from
properties & replace your current connection string.