Pls help me code for linq

[omel]

Pls help me,
I want to change my db connection use linq. I dont know to start the connection. I already drag my table and drag my linq datasource on my form. Pls check for me.TQ...here this code

Private Function YourValidationFunction(ByVal UserName As String, ByVal Password As String) As Boolean



    Dim boolReturnValue As Boolean = False
    Dim strConnection As String = "server=.;database=Assignment;uid=sa;"
    Dim sqlConnection As New SqlConnection(strConnection)
    Dim SQLQuery As String = "SELECT UserName, Password FROM Login"
    Dim command As New SqlCommand(SQLQuery, sqlConnection)
    Dim Dr As SqlDataReader
    sqlConnection.Open()
    Dr = command.ExecuteReader()


    While Dr.Read()
        If (UserName = Dr("UserName").ToString()) And (Password = Dr("Password").ToString()) Then
            boolReturnValue = True
        End If
        Dr.Close()
        Return boolReturnValue
    End While
    Return boolReturnValue
End Function

 

[Bob Langlade]

Here are a few videos that will help you learn link : http://msdn.microsoft.com/en-us/vbasic/bb466226.aspx#linq