Open File Dialog Filter : OpenFileDialog « GUI « VB.Net Tutorial






Open File Dialog Filter
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms

public class PictureBoxImageFromOpenFileDialog
   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 PictureBox1 As System.Windows.Forms.PictureBox
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents OpenFileDialog1 As System.Windows.Forms.OpenFileDialog
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.PictureBox1 = New System.Windows.Forms.PictureBox
        Me.Button1 = New System.Windows.Forms.Button
        Me.OpenFileDialog1 = New System.Windows.Forms.OpenFileDialog
        Me.SuspendLayout()
        '
        'PictureBox1
        '
        Me.PictureBox1.Location = New System.Drawing.Point(16, 16)
        Me.PictureBox1.Name = "PictureBox1"
        Me.PictureBox1.Size = New System.Drawing.Size(248, 176)
        Me.PictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize
        Me.PictureBox1.TabIndex = 0
        Me.PictureBox1.TabStop = False
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(96, 208)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(88, 24)
        Me.Button1.TabIndex = 1
        Me.Button1.Text = "Open"
        '
        'OpenFileDialog1
        '
        Me.OpenFileDialog1.Filter = "bmp(*.bmp)|*.bmp"
        '
        '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.PictureBox1)
        Me.ResumeLayout(False)

    End Sub
    
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim pic As Image
        OpenFileDialog1.ShowDialog()
        pic = New Bitmap(OpenFileDialog1.FileName)
        PictureBox1.Image = pic
    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