[VB.Net] New Project Read Posted RSS Blogger

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Read Posted RSS
Etc...

Cập nhật thêm một số tính năng mới... !!!

Source Code (Tiến Trình Hoàn Thành Được 50%)

Imports System.Xml
Imports System.Xml.XPath
Imports System.Net
Imports System.IO
Imports System.Text.RegularExpressions

Public Class Form1
    Private mRssUrl As String
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Try

            ' set the file path member var
            mRssUrl = LinkGetRss.Text

            ' Clear the treeview.
            listlink.Items.Clear()
            listtitle.Items.Clear()

            ' set the wait cursor
            Me.Cursor = Cursors.WaitCursor

            ' create a new xml doc
            Dim doc As New XmlDocument()

            Try

                ' load the xml doc
                doc.Load(mRssUrl)

                ' return the cursor
                Me.Cursor = Cursors.Default

            Catch ex1 As Exception

                ' return the cursor
                Me.Cursor = Cursors.Default

                ' tell a story
                MessageBox.Show(ex1.Message)
                Return

            End Try



            ' get an xpath navigator   
            Dim navigator As XPathNavigator = doc.CreateNavigator()

            Try

                ' look for the path to the rss item titles navigate
                ' through the nodes to get all titles
                Dim nodes As XPathNodeIterator = navigator.Select("/rss/channel/item/title")

                While nodes.MoveNext

                    ' clean up the text for display
                    Dim node As XPathNavigator = nodes.Current
                    Dim tmp As String = node.Value.Trim()
                    tmp = tmp.Replace(ControlChars.CrLf, "")
                    tmp = tmp.Replace(ControlChars.Lf, "")
                    tmp = tmp.Replace(ControlChars.Cr, "")
                    tmp = tmp.Replace(ControlChars.FormFeed, "")
                    tmp = tmp.Replace(ControlChars.NewLine, "")

                    ' add a new treeview node for this
                    ' news item title
                    listtitle.Items.Add(tmp)


                End While


                ' set a position counter
                Dim position As Integer = 0

                ' Get the links from the RSS feed
                Dim nodesLink As XPathNodeIterator = navigator.Select("/rss/channel/item/link")

                While nodesLink.MoveNext

                    ' clean up the link
                    Dim node As XPathNavigator = nodesLink.Current
                    Dim tmp As String = node.Value.Trim()
                    tmp = tmp.Replace(ControlChars.CrLf, "")
                    tmp = tmp.Replace(ControlChars.Lf, "")
                    tmp = tmp.Replace(ControlChars.Cr, "")
                    tmp = tmp.Replace(ControlChars.FormFeed, "")
                    tmp = tmp.Replace(ControlChars.NewLine, "")


                    ' use the position counter
                    ' to add a link child node
                    ' to each news item title
                    listlink.Items.Add(tmp)
                    listlink.SelectedItem = listlink.Items.Item(0)
                    listtitle.SelectedItem = listtitle.Items.Item(0)
                    'listlink.SelectedItem = listlink.Items.Item(0)

                    ' increment the position counter

                    position += 1
                    Label2.Text = listlink.Items.Count
                   
                End While


            Catch ex As Exception

                MessageBox.Show(ex.Message, "RSS Feed Load Error")

            End Try


            ' restore the cursor
            Me.Cursor = Cursors.Default

        Catch ex2 As Exception

            ' snitch
            MessageBox.Show(ex2.ToString(), "RSS Feed Initialization Failure")
        End Try
    End Sub

    Private Sub listlink_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles listlink.SelectedIndexChanged
        WebBrowser1.Navigate(listlink.SelectedItem.ToString())
    End Sub

    Private Sub GroupBox3_Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GroupBox3.Enter

    End Sub

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

    End Sub

    Private Sub WebBrowser1_ProgressChanged(ByVal sender As Object, ByVal e As System.Windows.Forms.WebBrowserProgressChangedEventArgs) Handles WebBrowser1.ProgressChanged
        'Progressbar hiển thị thời gian 
        ProgressBar1.Maximum = e.MaximumProgress
        If e.CurrentProgress > ProgressBar1.Maximum Then
            ProgressBar1.Value = ProgressBar1.Maximum
        ElseIf e.CurrentProgress < ProgressBar1.Minimum Then
            ProgressBar1.Value = ProgressBar1.Minimum
        Else
            ProgressBar1.Value = e.CurrentProgress

        End If
    End Sub

    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        Me.Text = "Tweet APP Viewer By Bờm Khùng" & Space(1) & ":" & DateTime.Now.ToLongTimeString.ToString()
        TextBox4.Text = TextBox1.Text + 1
        WebBrowser2.Navigate(TextBox2.Text)
        'hàm selected listbox theo thứ tự
        Try
            TextBox1.Text = TextBox1.Text + 1
            If TextBox1.Text < listlink.Items.Count Then
                listlink.SelectedItem = listlink.Items.Item(TextBox1.Text)
            ElseIf TextBox1.Text > listlink.Items.Count - 1 Then
                listlink.SelectedItem = listlink.Items.Item(0)
            End If

            TextBox3.Text = TextBox3.Text + 1
            If TextBox3.Text < listtitle.Items.Count Then
                listtitle.SelectedItem = listtitle.Items.Item(TextBox3.Text)
            ElseIf TextBox3.Text > listtitle.Items.Count - 1 Then
                listtitle.SelectedItem = listtitle.Items.Item(0)
            End If

            'in lên textbox
            TextBox2.Text = listtitle.SelectedItem + Space(1) & "=>" & Space(1) & listlink.SelectedItem + Space(1) & " => " & Space(1) & DateTime.Now.ToLongTimeString.ToString()

            'in lên groupbox
            GroupBox1.Text = listtitle.SelectedItem

            'Hàm get ở webbrowser1 để post vào textarea trên web
            Dim htmlElements As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("textarea")
            For Each el As HtmlElement In htmlElements

                If el.GetAttribute("name").Equals("tweet[text]") Then
                End If
                el.SetAttribute("Value", TextBox2.Text + Space(1) & " => " & DateTime.Now.ToLongTimeString.ToString())

                Dim allelements1 As HtmlElementCollection = WebBrowser1.Document.All

                For Each webpageelement As HtmlElement In allelements1

                    If webpageelement.GetAttribute("value") = "Tweet" Then

                        webpageelement.InvokeMember("click")
                    End If
                Next
            Next

            WebBrowser1.Navigate("https://mobile.twitter.com/compose/tweet")

        Catch ex As Exception
            Timer2.Start()
        End Try
    End Sub

    Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick
        Try

            Dim htmlElements As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("textarea")
            For Each el As HtmlElement In htmlElements

                If el.GetAttribute("name").Equals("tweet[text]") Then
                End If
                el.SetAttribute("Value", TextBox2.Text + DateTime.Now.ToLongTimeString.ToString())

                Dim allelements1 As HtmlElementCollection = WebBrowser1.Document.All

                For Each webpageelement As HtmlElement In allelements1

                    If webpageelement.GetAttribute("value") = "Tweet" Then

                        webpageelement.InvokeMember("click")
                    End If
                Next
            Next
            WebBrowser1.Navigate("https://mobile.twitter.com/compose/tweet")

        Catch ex As Exception
            Timer1.Stop()
            Timer2.Stop()
        End Try
    End Sub

    Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
        Timer1.Start()
    End Sub

    Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
        Timer1.Stop()
    End Sub
End Class

Mình sẽ sớm hoàn thiện ứng dụng này trong một ngày không xa và rất xa !!!




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