Showing posts with label VB.NET 2008. Show all posts
Showing posts with label VB.NET 2008. Show all posts
Saturday, November 27, 2010 by Andy Kurnia Prayoga Made
Description: This program was made with the programming language visual basic 2008. The program is created as a variation in your program. Your program will look more attractive if there is activity load before the main form of your program is raised. Makes it very easy. Here code of the program this splash screen. Good luck!

Public Class Form1

    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        ProgressBar1.Increment(4)
        If ProgressBar1.Value = 100 Then
            Timer1.Dispose()
            Me.Opacity = 0
            Form2.Show()
        End If
    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Timer1.Start()
    End Sub

End Class



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Tuesday, November 16, 2010 by Andy Kurnia Prayoga Made
Description: This program was made with the programming language visual basic 2008. The program I give the name "Ende-Crypt". The objective of this program is for encryption and decryption of a word. This is certainly very closely related to the previous program (URLMemory) where the password of an account can we go back for encryption and decryption of data security of our passwords more secure. With standard control facilities from VB 2008 such as textbox and button are able to form this program. Here's the source code of this program. Good luck!

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim Enkrip, Output, Inputan As String
        Dim Panjang_Input As Integer
        Inputan = TextBox1.Text
        Panjang_Input = Len(TextBox1.Text)
        For i = 1 To Panjang_Input
            Enkrip = Mid(Inputan, i, 1)
            Enkrip = Asc(Enkrip)
            Enkrip = (Enkrip + 7) - 11
            Enkrip = Chr(Enkrip)
            Output = Output & Enkrip
        Next i
        TextBox2.Text = Output
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Dim Dekrip, Output, Inputan As String
        Dim Panjang_Input As Integer
        Inputan = TextBox3.Text
        Panjang_Input = Len(TextBox3.Text)
        For i = 1 To Panjang_Input
            Dekrip = Mid(Inputan, i, 1)
            Dekrip = Asc(Dekrip)
            Dekrip = (Dekrip - 7) + 11
            Dekrip = Chr(Dekrip)
            Output = Output & Dekrip
        Next i
        TextBox4.Text = Output
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click

        TextBox1.Text = ""
        TextBox2.Text = ""
        TextBox3.Text = ""
        TextBox4.Text = ""

    End Sub

    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        End
    End Sub

End Class 

Comments
by Andy Kurnia Prayoga Made
Description: This program was made with the programming language visual basic 2008. I give this program the name "URLMemory". Purposes of this program is to facilitate Internet users to remember the username and password on websites that you register. Example given in the e-mail account. These programs use a textfile as storage media databases. Manufacture is also very easy, just use the standard controls of Visual Basic 2008, which is used as textbox, combobox and others. Weakness of this program one of them is not using the password encryption methods so that in terms of security is still lacking. To encrypt the files will be discussed at the next program. Of course there are many more other deficiencies. To cover the following things give me the source code of this program. Good luck!


Imports Microsoft.VisualBasic
Imports System.Collections.ObjectModel

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim dpath As String = Application.StartupPath
        Dim mydata As String
        
        mydata = "url=" & ComboBox1.Text & "|username=" & TextBox1.Text & "|password=" & TextBox2.Text
        My.Computer.FileSystem.WriteAllText(dpath & "\Data\" & ComboBox1.Text & ".txt", String.Empty, False)
        My.Computer.FileSystem.WriteAllText(dpath & "\Data\" & ComboBox1.Text & ".txt", mydata, False)
        ComboBox1.Items.Add(ComboBox1.Text)

        MsgBox("Data sudah ditambahkan")
    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim files As ReadOnlyCollection(Of String)
        Dim fileContents As String
        Dim myArray(5) As String, myUrl(2) As String, myUser(2) As String, myPass(2) As String
        Dim dpath As String = Application.StartupPath
        Dim folderExists As Boolean

        folderExists = My.Computer.FileSystem.DirectoryExists(dpath & "\Data")
        If Not (folderExists) Then
            My.Computer.FileSystem.CreateDirectory(dpath & "\Data")
        End If
        files = My.Computer.FileSystem.FindInFiles(dpath & "\Data", "url", True, FileIO.SearchOption.SearchAllSubDirectories, "*.txt")

        For i = 0 To files.Count - 1
            fileContents = My.Computer.FileSystem.ReadAllText(files.Item(i))
            myArray = Split(fileContents, "|")
            myUrl = Split(myArray(0), "=")
            ComboBox1.Items.Add(myUrl(1))
        Next
    End Sub

    Private Sub ComboBox1_SelectedValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedValueChanged
        Dim dpath As String = Application.StartupPath
        Dim fileContents As String
        Dim myArray(5) As String, myUrl(2) As String, myUser(2) As String, myPass(2) As String
        Dim fileExists As Boolean
        fileExists = My.Computer.FileSystem.FileExists(dpath & "\Data\" & ComboBox1.Text & ".txt")
        If fileExists Then
            fileContents = My.Computer.FileSystem.ReadAllText(dpath & "\Data\" & ComboBox1.Text & ".txt")
            myArray = Split(fileContents, "|")
            myUrl = Split(myArray(0), "=")
            myUser = Split(myArray(1), "=")
            myPass = Split(myArray(2), "=")
            TextBox1.Text = myUser(1)
            TextBox2.Text = myPass(1)
        End If
    End Sub

    Private Sub CheckBox1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged
        If CheckBox1.Checked Then
            TextBox2.PasswordChar = Chr(7)
        Else
            TextBox2.PasswordChar = ""
        End If
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Dim dpath As String = Application.StartupPath & "\Data\" & ComboBox1.Text & ".txt"
        Dim files As ReadOnlyCollection(Of String)
        Dim fileContents As String
        Dim myArray(5) As String, myUrl(2) As String, myUser(2) As String, myPass(2) As String
        Dim dpath2 As String = Application.StartupPath
        My.Computer.FileSystem.DeleteFile(dpath, FileIO.UIOption.OnlyErrorDialogs, FileIO.RecycleOption.DeletePermanently)
        ComboBox1.Text = ""
        TextBox2.Text = ""
        TextBox1.Text = ""
        ComboBox1.Items.Clear()
        files = My.Computer.FileSystem.FindInFiles(dpath2 & "\Data", "url", True, FileIO.SearchOption.SearchAllSubDirectories, "*.txt")

        For i = 0 To files.Count - 1
            fileContents = My.Computer.FileSystem.ReadAllText(files.Item(i))
            myArray = Split(fileContents, "|")
            myUrl = Split(myArray(0), "=")
            ComboBox1.Items.Add(myUrl(1))
        Next

        MsgBox("Data sudah dihapus")
    End Sub

    Private Sub LinkLabel1_LinkClicked(ByVal sender As System.Object, ByVal e As System.Windows.Forms.LinkLabelLinkClickedEventArgs) Handles LinkLabel1.LinkClicked
        Try
            VisitLink()
        Catch ex As Exception
            ' The error message
            MessageBox.Show("Unable to open link that was clicked.")
        End Try

    End Sub
    Sub VisitLink()
        
        LinkLabel1.LinkVisited = True
        
        System.Diagnostics.Process.Start("http://andy-study.blogspot.com")
    End Sub

End Class 

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