Ich poste eine Antwort, damit auch anderen geholfen werden kann, wenn sie darauf stoßen.
Das ist es, was alles für mich zum Laufen gebracht hat. (Rufe Kevin an)
Protected Sub Button1_Click(sender As Object, e As System.EventArgs)
Dim appPath As String = Request.PhysicalApplicationPath
Dim con As New System.Data.SqlClient.SqlConnection
con.ConnectionString = "Data Source=.\SQLEXPRESS;AttachDbFilename=" & appPath & "App_Data\Devicedatabase.MDF;Integrated Security=True;User Instance=True;"
con.Open()
MsgBox("open")
con.Close()
MsgBox("close")
End Sub
Dies hat die Verbindung nach langem Probieren und Frust geöffnet.
Dadurch wurden die Excel-Werte in die Datenbank importiert:
Using con As New SqlClient.SqlConnection With
{
.ConnectionString =
"Data Source=.\SQLEXPRESS;AttachDbFilename=" & appPath & "App_Data\Devicedatabase.MDF;Integrated Security=True;User Instance=True;"
}
Using cmd As New SqlClient.SqlCommand With
{
.Connection = con,
.CommandText = "INSERT INTO " & """" & DropDownList1.SelectedItem.ToString & """" & "ColumnName1, ColumnName2)VALUES (@Col1,@Col2)"
}
cmd.Parameters.Add(New SqlClient.SqlParameter With {.DbType = DbType.String, .ParameterName = "@Col1"})
cmd.Parameters.Add(New SqlClient.SqlParameter With {.DbType = DbType.String, .ParameterName = "@Col2"})
cmd.Parameters(0).Value = "Value obtained from Excel"
cmd.Parameters(1).Value = "Value obtained from Excel"
con.Open()
Dim Result As Integer = cmd.ExecuteNonQuery
If Result <> 1 Then
MessageBox.Show("Insert failed.")
Else
MessageBox.Show("Row inserted.")
End If
End Using
End Using
Viel Spaß Jungs!
