Use OpenFileDialog to load image to PictureBox : OpenFileDialog « GUI « VB.Net Tutorial






Use OpenFileDialog to load image to PictureBox
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms

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

Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    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

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents OpenFileDialog1 As System.Windows.Forms.OpenFileDialog
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents PictureBox1 As System.Windows.Forms.PictureBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.OpenFileDialog1 = New System.Windows.Forms.OpenFileDialog
        Me.Button1 = New System.Windows.Forms.Button
        Me.PictureBox1 = New System.Windows.Forms.PictureBox
        Me.SuspendLayout()
        '
        'OpenFileDialog1
        '
        Me.OpenFileDialog1.Filter = "JPEG files (*.jpg)|*.jpg|GIF files (*.gif)|*.gif|All files (*.*)|*.*"
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(96, 88)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(88, 23)
        Me.Button1.TabIndex = 0
        Me.Button1.Text = "Show Dialog"
        '
        'PictureBox1
        '
        Me.PictureBox1.Location = New System.Drawing.Point(88, 144)
        Me.PictureBox1.Name = "PictureBox1"
        Me.PictureBox1.Size = New System.Drawing.Size(104, 88)
        Me.PictureBox1.TabIndex = 1
        Me.PictureBox1.TabStop = False

        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Controls.Add(Me.PictureBox1)
        Me.Controls.Add(Me.Button1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If OpenFileDialog1.ShowDialog() = DialogResult.OK Then
            PictureBox1.Image = Image.FromFile(OpenFileDialog1.FileName)
        End If
    End Sub

    Private Sub OpenFileDialog1_FileOk(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles OpenFileDialog1.FileOk

    End Sub
End Class








14.63.OpenFileDialog
14.63.1.Prevent dialog box from validating file
14.63.2.File Open/Save dialogFile Open/Save dialog
14.63.3.Open File Dialog FilterOpen File Dialog Filter
14.63.4.Set OpenFileDialog Filter and get selected file nameSet OpenFileDialog Filter and get selected file name
14.63.5.Set InitialDirectory and FilterIndex for OpenFileDialogSet InitialDirectory and FilterIndex for OpenFileDialog
14.63.6.Get selected file name in a OpenFileDialog
14.63.7.Use OpenFileDialog to load image to PictureBoxUse OpenFileDialog to load image to PictureBox