VB.NET getting Webbrowser iframe source code

VB.NET getting Webbrowser iframe source code.

Add two textbox and two button and one webbrowser in form1. And add this all code in form class.

Option Explicit On

Imports System.Text
Imports System.IO
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        WebBrowser1.Navigate(TextBox1.Text)
    End Sub
    Private Sub WebBrowser1_DocumentCompleted(ByVal sender As Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
        On Error Resume Next
        TextBox2.Text = WebBrowser1.Document.Window.Frames("mainFrame").Document.Body.InnerHtml
    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        On Error Resume Next
        TextBox2.Text = WebBrowser1.Document.Window.Frames("mainFrame").Document.Body.InnerHtml

        For Each telement As HtmlElement In WebBrowser1.Document.GetElementsByTagName("a")
            Dim tElementClass As String = "operations-blocks "
            Dim selementclass As String = "operations-blocks "
            If telement.OuterHtml.Contains(tElementClass) AndAlso telement.OuterHtml.Contains(selementclass) Then
                Dim conStr As String = telement.GetAttribute("innertext")
                MsgBox(conStr)
            End If
        Next


    End Sub
End Class

VB.Net Tabcontrol Tabpages close button without image

Public Class Form1

    Dim MyTabControl As New TabControl

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

        With MyTabControl

            .DrawMode = TabDrawMode.OwnerDrawFixed

            .Dock = DockStyle.Fill

            .SizeMode = TabSizeMode.Fixed

            .ItemSize = New Size(200, 30)

            .Controls.Add(New TabPage("Page1"))

            .Controls.Add(New TabPage("Page2"))

            .Controls.Add(New TabPage("Page3"))

            AddHandler .DrawItem, AddressOf MyTabcontrol_DrawItem

            AddHandler .MouseClick, AddressOf MyTabcontrol_MouseClick

        End With

        Me.Controls.Add(MyTabControl)

    End Sub

    Public Sub MyTabcontrol_DrawItem(ByVal sender As System.Object, ByVal e As DrawItemEventArgs)

        Dim TC As TabControl = CType(sender, TabControl)

        Dim TabRec As Rectangle = TC.GetTabRect(e.Index)

        Dim Clr As Color = If(e.State = DrawItemState.Selected, Color.White, Color.LightGray)

        e.Graphics.FillRectangle(New SolidBrush(Clr), TabRec)

        Dim sf As New StringFormat

        sf.Alignment = StringAlignment.Center

        sf.LineAlignment = StringAlignment.Center

        sf.FormatFlags = StringFormatFlags.NoWrap

        If e.State = DrawItemState.Selected Then

            Dim BTNRec As New Rectangle(TabRec.X + TabRec.Width - 30, 8, 18, 18)

            e.Graphics.FillRectangle(Brushes.Red, BTNRec)

            e.Graphics.DrawRectangle(Pens.DarkRed, BTNRec)

            e.Graphics.DrawString("X", New Font(Me.Font.FontFamily, 8, FontStyle.Bold), Brushes.Black, BTNRec, sf)

        End If



        e.Graphics.DrawString(TC.TabPages(e.Index).Text, Me.Font, Brushes.Black, TabRec, sf)

        TabRec.Inflate(-3, -3)

        Dim Pn As Pen = If(e.State = DrawItemState.Selected, New Pen(Color.Green, 2), New Pen(Color.Red, 1))

        e.Graphics.DrawRectangle(Pn, TabRec)

        e.DrawFocusRectangle()

    End Sub

    Private Sub MyTabcontrol_MouseClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs)

        Dim TC As TabControl = CType(sender, TabControl)

        Dim Rec As Rectangle = MyTabControl.GetTabRect(MyTabControl.SelectedIndex)

        Dim HitTest As New Rectangle(Rec.X + Rec.Width - 30, 8, 18, 18)

        If HitTest.Contains(New Point(e.X, e.Y)) Then

            If Not TC.TabPages.Count = 1 Then

                TC.TabPages.Remove(TC.SelectedTab)

            End If

        End If

    End Sub

End Class

VB.Net Internet Explorer Browser Emulation

Firstly add this code in Form1 class

    Sub SetBrowser()

        Dim Key As String = "Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION"

        Dim AppName As String = System.Diagnostics.Process.GetCurrentProcess().ProcessName + ".exe"

        Dim Mode As Integer = 9999

        Dim RKey As RegistryKey = Registry.CurrentUser.CreateSubKey(Key)

        If Not CBool(RKey.GetValue(AppName, False)) Then

            RKey.SetValue(AppName, Mode, RegistryValueKind.DWord)

            System.Threading.Thread.Sleep(1000)

        End If

        RKey.Close()

    End Sub

After add this code Form1 Load

SetBrowser()

        'HKEY_CURRENT_USER is recommended if you do not want to run your application with administrative privileges.

        InternetExplorer.SetLatestBrowserEmulation(InternetExplorer.RegistryRoot.HKEY_LOCAL_MACHINE)

        InternetExplorer.SetLatestBrowserEmulation(InternetExplorer.RegistryRoot.HKEY_CURRENT_USER)

Do not forget change option WebBrowser1 ScriptErrorsSuppressed True

VB.NET Remote Mysql Database Connection

Firstly download this file.

https://www.cryptool.org/trac/CrypTool2/export/2020/trunk/AppReferences/x64/MySql.Data.dll

After add import Mysql Data Client in to form

Imports MySql.Data.MySqlClient

and connect remote mysql database vith vb.net

MySqlConnection("server=remotemysql.com; User Id=FKQwSrN1Hj; pwd=2R9f6eYDaa; database=FKQwSrN1Hj;")

       

All Codes:

Imports MySql.Data.MySqlClient
Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        Dim MySQLconn As New MySqlConnection
        MySQLconn = New MySqlConnection("server=remotemysql.com; User Id=FKQwSrN1Hj; pwd=2R9f6eYDaa; database=FKQwSrN1Hj;")
        Try
            MySQLconn.Open()
            MsgBox("Connection Sucess", vbOKOnly)
            MySQLconn.Close()
        Catch ex As Exception
            MsgBox(ex.Message)
        End Try

    End Sub
End Class

VB.NET Küsüratlı Türk Lirası Toplamak

VB.NET Küsüratlı Türk Lirası Toplamak için internet te hiç kaynak yok, ben de biraz zaman harcayarak sorunsuz ve çok kolay bir şekilde bu problemi hallettim.

Öncelikle formumuza 2 adet TextBox oluşturuyoruz.
Sonra altına bir tane Button oluşturuyoruz.
Altına da bir adet label ekliyoruz.

Kodda da gördüğünüz gibi a ve b değişkenlerinin veri tipini Double olarak ayarlıyoruz, sonra FormatCurrency fonksiyonu ile a ile b değerini topluyoruz, çıkan sonuç tam küsüratlı olarak hem de TL işareti ile bize veriliyor.

Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        ' TextBox1 değeri 1.561,17  // Bin Beşyüz Altmış Bir TL On Yedi Kuruş
        ' TextBox2 değeri 2,5       // İki TL Elli Kuruş
        Dim a As Double = TextBox1.Text
        Dim b As Double = TextBox2.Text
        Label1.Text = FormatCurrency(a + b)
    End Sub
End Class

Sonuç

Programı çalıştırdığınızda formata uygun TL ve kuruş değeri para birimlerini sıkıntısız toplayabilirsiniz.

VB.NET Create Dynamic TabControl and WebBrowser with ini section names

Click for clsINI reference

Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim LoadSettings As New clsIni("C:\settings.ini")
        Dim sites As String
        Dim url As String
        Dim array() As Integer = {1, 2, 3}
        Dim tb As TabControl = New TabControl
        For i As Integer = 1 To array.Length - 1
            sites = LoadSettings.GetString("site" & i, "name", "")
            url = LoadSettings.GetString("site" & i, "url", "")
            Dim page As TabPage = New TabPage
            Dim browser As WebBrowser = New WebBrowser
            tb.TabPages.Add(page)
            page.Text = sites
            Me.Controls.Add(tb)
            tb.Dock = DockStyle.Fill
            page.Controls.Add(browser)
            browser.Navigate(url)
            browser.Dock = DockStyle.Fill
        Next
    End Sub
End Class

VB.NET Create Filled Form Dynamic TabControl with ini section names

Public Class Form1

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

        Dim LoadSettings As New clsIni("C:\settings.ini")

        Dim sites As String       

        Dim tb As TabControl = New TabControl

        For i As Integer = 1 To array.Length - 1

            sites = LoadSettings.GetString("site" & i, "name", "")

            Dim page As TabPage = New TabPage

            tb.TabPages.Add(page)

            page.Text = sites

            Me.Controls.Add(tb)

            tb.Dock = DockStyle.Fill

        Next

    End Sub

End Class