Load txt file to RichTextBox : RichTextBox « GUI « VB.Net Tutorial






Load txt file to RichTextBox
Imports System.Windows.Forms

public class RichTextBoxLoadTextFile
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class

Public Class Form1
    Inherits System.Windows.Forms.Form

    Public Sub New()
        MyBase.New()

        InitializeComponent()

    End Sub

    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    Private components As System.ComponentModel.IContainer

    Friend WithEvents RichTextBox1 As System.Windows.Forms.RichTextBox
    Friend WithEvents OpenFileDialog1 As System.Windows.Forms.OpenFileDialog
    Friend WithEvents Button1 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.RichTextBox1 = New System.Windows.Forms.RichTextBox
        Me.OpenFileDialog1 = New System.Windows.Forms.OpenFileDialog
        Me.Button1 = New System.Windows.Forms.Button
        Me.SuspendLayout()
        '
        'RichTextBox1
        '
        Me.RichTextBox1.Location = New System.Drawing.Point(16, 16)
        Me.RichTextBox1.Name = "RichTextBox1"
        Me.RichTextBox1.Size = New System.Drawing.Size(264, 168)
        Me.RichTextBox1.TabIndex = 0
        Me.RichTextBox1.Text = ""
        '
        'OpenFileDialog1
        '
        Me.OpenFileDialog1.Filter = "Text Files(*.txt)|*.txt"
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(104, 208)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(88, 32)
        Me.Button1.TabIndex = 1
        Me.Button1.Text = "Open"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.RichTextBox1)
        Me.Name = "Form1"
        Me.Text = "RichTextBox"
        Me.ResumeLayout(False)

    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        RichTextBox1.Text = ""
        OpenFileDialog1.ShowDialog()
        Dim textline As String
        FileOpen(1, OpenFileDialog1.FileName, OpenMode.Input)
        While Not EOF(1)
            textline = LineInput(1)
            RichTextBox1.Text = RichTextBox1.Text + textline + Chr(13) + Chr(10)
        End While
    End Sub
End Class








14.27.RichTextBox
14.27.1.Load txt file to RichTextBoxLoad txt file to RichTextBox
14.27.2.Simple Editor based on RichTextBoxSimple Editor based on RichTextBox
14.27.3.Print view text in RichTextBoxPrint view text in RichTextBox
14.27.4.Save text in RichTextBox into a fileSave text in RichTextBox into a file
14.27.5.Change RichTextBox Selection colorChange RichTextBox Selection color
14.27.6.Change RichTextBox Selection FontChange RichTextBox Selection Font
14.27.7.Save Rtf file from RichTextBox and Read Rtf file to RichTextBoxSave Rtf file from RichTextBox and Read Rtf file to RichTextBox
14.27.8.Find text in RichTextBoxFind text in RichTextBox
14.27.9.Copy and paste between RichTextBoxCopy and paste between RichTextBox
14.27.10.RichTextBox Redo/UndoRichTextBox Redo/Undo