I have a VB form which may be called by a number of forms. Upon exiting this child form, I want to restore the calling form but I cannot seem to figure out how to determine which form called it. Any help would be greatly appreciated.
You can create a tagging for parent forms (maybe a global array) which you will update the value every time you open a child form. You just have to remember which form is which on the tagging you will make.
Maybe you can try this-
Module with form tagging:
Module Module1
Public parentForms(2) As String
'parentForms(0) - parent form of Form 1
'parentForms(1) - parent form of Form 2
'parentForms(2) - parent form of Form 3
Public Sub openParentForm(ByVal ParentTag As String)
If ParentTag {use the notequal operator} "" Then
Select Case ParentTag
Case Form1.Tag
Form1.Show()
Case Form2.Tag
Form2.Show()
Case Form3.Tag
Form3.Show()
End Select
End If
End Sub
End Module
Form1:
Public Class Form1
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Me.Tag = "Form1"
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
parentForms(1) = Me.Tag
Form2.Show()
'Dont use .Close as the Parent Form will be disposed and the whole application will exit
Me.Visible = False
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
parentForms(2) = Me.Tag
Form3.Show()
Me.Visible = False
End Sub
Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
Call openParentForm(parentForms(0))
End Sub
End Class
Form2
Public Class Form2
Private Sub Form2_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Me.Tag = "Form2"
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
parentForms(0) = Me.Tag
Form1.Show()
Me.Visible = False
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
parentForms(2) = Me.Tag
Form3.Show()
Me.Visible = False
End Sub
Private Sub Form2_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
Call openParentForm(parentForms(1))
End Sub
End Class
Form3
Public Class Form3
Private Sub Form3_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Me.Tag = "Form3"
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
parentForms(0) = Me.Tag
Form1.Show()
Me.Visible = False
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
parentForms(1) = Me.Tag
Form2.Show()
Me.Visible = False
End Sub
Private Sub Form3_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
Call openParentForm(parentForms(2))
End Sub
End Class
How can I change the mausehover event of all TextBox
Private Sub TextBox1_MouseHover(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.MouseHover
ToolTip1.SetToolTip(TextBox1, TextBox1.Text)
End Sub
Private Sub TextBox2_MouseHover(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox2.MouseHover
ToolTip1.SetToolTip(TextBox2, TextBo2.Text)
End Sub
Private Sub TextBox3_MouseHover(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox3.MouseHover
ToolTip1.SetToolTip(TextBox3, TextBox3.Text)
End Sub
How can I add code to the all textbox mousehover event in the shortest way
Thanks.
Here's a way to do it :
Private Sub TextBox_MouseHover(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.MouseHover, TextBox2.MouseHover, TextBox3.MouseHover
Dim tbx = DirectCast(sender, TextBox)
ToolTip1.SetToolTip(tbx, tbx.Text)
End Sub
I am embedding the VLC media player into a Windows Forms application through an activeX control.
The code goes like this:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Open file button
Dim openFileDialog1 As New OpenFileDialog()
openFileDialog1.Title = "Open file"
If openFileDialog1.ShowDialog() = Windows.Forms.DialogResult.OK Then
AxVLCPlugin21.playlist.add(openFileDialog1.FileName)
End If
openFileDialog1.Dispose()
End Sub
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
'Play button
AxVLCPlugin21.playlist.play()
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
'Stop button
AxVLCPlugin21.playlist.stop()
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
'Pause button
AxVLCPlugin21.playlist.togglePause()
End Sub
Private Sub TrackBar1_Scroll(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TrackBar1.Scroll
'Volume control
AxVLCPlugin21.audio.Volume = TrackBar1.Value
End Sub
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
'Toggle Full Screen button
AxVLCPlugin21.video.toggleFullscreen()
End Sub
End Class
How can I toggle full screen?
This code makes no effect:
AxVLCPlugin21.video.toggleFullscreen()
Thank you.
if (axVLCPlugin21.video.fullscreen)
axVLCPlugin21.video.fullscreen = false;
else
axVLCPlugin21.video.fullscreen = true;
I am trying to implement a project in VB.NET wherein a user can see two browser window panes side by side. It is very similar to placing two browser windows side by side on the screen, one docking to the left side, and the other on the right side. Only in this case, there's only one application. I'm having the following problems with my code
On pressing enter, the browser is not navigating to the website for both the panes
The controls on the left pane are not working. Only the Go button works for the left pane.
Here is my code (can't post pictures yet):
Public Class Form1
Dim int As Integer = 0
Dim int1 As Integer = 0
Private Sub Loading(ByVal sender As Object, ByVal e As Windows.Forms.WebBrowserProgressChangedEventArgs)
ToolStripProgressBar1.Maximum = e.MaximumProgress
ToolStripProgressBar1.Value = e.MaximumProgress
End Sub
Private Sub Loading1(ByVal sender1 As Object, ByVal e1 As Windows.Forms.WebBrowserProgressChangedEventArgs)
ToolStripProgressBar2.Maximum = e1.MaximumProgress
ToolStripProgressBar2.Value = e1.MaximumProgress
End Sub
Private Sub Done(ByVal sender As Object, ByVal e As Windows.Forms.WebBrowserDocumentCompletedEventArgs)
TabControl1.SelectedTab.Text = CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).DocumentTitle
TextBox1.Text = CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Url.ToString
End Sub
Private Sub Done1(ByVal sender1 As Object, ByVal e1 As Windows.Forms.WebBrowserDocumentCompletedEventArgs)
TabControl2.SelectedTab.Text = CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).DocumentTitle
TextBox2.Text = CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).Url.ToString
End Sub
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim Browser As New WebBrowser
TabControl1.TabPages.Add("New Page")
Browser.Name = "Web Browser"
Browser.Dock = DockStyle.Fill
TabControl1.SelectedTab.Controls.Add(Browser)
AddHandler Browser.ProgressChanged, AddressOf Loading
AddHandler Browser.DocumentCompleted, AddressOf Done
int = int + 1
CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate(My.Settings.homePage)
Dim Browser1 As New WebBrowser
TabControl2.TabPages.Add("New Page")
Browser1.Name = "Web Browser 2"
Browser1.Dock = DockStyle.Fill
TabControl2.SelectedTab.Controls.Add(Browser1)
AddHandler Browser1.ProgressChanged, AddressOf Loading1
AddHandler Browser1.DocumentCompleted, AddressOf Done1
int1 = int1 + 1
CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).Navigate(My.Settings.homePage)
End Sub
Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Dim Browser As New WebBrowser
TabControl1.TabPages.Add("New Page")
TabControl1.SelectTab(int)
Browser.Name = "Web Browser"
Browser.Dock = DockStyle.Fill
TabControl1.SelectedTab.Controls.Add(Browser)
AddHandler Browser.ProgressChanged, AddressOf Loading
AddHandler Browser.DocumentCompleted, AddressOf Done
int = int + 1
CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate(My.Settings.homePage)
End Sub
Private Sub Button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
If Not TabControl1.TabPages.Count = 1 Then
TabControl1.TabPages.RemoveAt(TabControl1.SelectedIndex)
TabControl1.SelectTab(TabControl1.TabPages.Count - 1)
int = int - 1
End If
End Sub
Private Sub TextBox1_KeyDown(sender As Object, e As KeyEventArgs)
If e.KeyCode = Keys.Enter Then
CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate(TextBox1.Text)
End If
End Sub
Private Sub Button9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).ShowPropertiesDialog()
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).GoBack()
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).GoForward()
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Refresh()
End Sub
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Stop()
End Sub
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate(My.Settings.homePage)
End Sub
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate(TextBox1.Text)
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
ToolStripStatusLabel1.Text = CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).StatusText
End Sub
Private Sub Button17_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button17.Click
Dim Browser1 As New WebBrowser
TabControl2.TabPages.Add("New Page")
TabControl2.SelectTab(int1)
Browser1.Name = "Web Browser 2"
Browser1.Dock = DockStyle.Fill
TabControl2.SelectedTab.Controls.Add(Browser1)
AddHandler Browser1.ProgressChanged, AddressOf Loading1
AddHandler Browser1.DocumentCompleted, AddressOf Done1
int1 = int1 + 1
CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).Navigate(My.Settings.homePage)
End Sub
Private Sub Button15_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button15.Click
If Not TabControl2.TabPages.Count = 1 Then
TabControl2.TabPages.RemoveAt(TabControl2.SelectedIndex)
TabControl2.SelectTab(TabControl2.TabPages.Count - 1)
int1 = int1 - 1
End If
End Sub
Private Sub TextBox2_KeyDown(sender As Object, e As KeyEventArgs)
If e.KeyCode = Keys.Enter Then
CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).Navigate(TextBox2.Text)
End If
End Sub
Private Sub Button12_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button12.Click
CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).ShowPropertiesDialog()
End Sub
Private Sub Button10_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button10.Click
CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).GoBack()
End Sub
Private Sub Button11_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button11.Click
CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).GoForward()
End Sub
Private Sub Button13_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button13.Click
CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).Refresh()
End Sub
Private Sub Button14_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button14.Click
CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).Stop()
End Sub
Private Sub Button16_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button16.Click
CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).Navigate(My.Settings.homePage)
End Sub
Private Sub Button18_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button18.Click
CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).Navigate(TextBox2.Text)
End Sub
Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick
ToolStripStatusLabel2.Text = CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).StatusText
End Sub
End Class
I'm new here so I'm sorry if I missed out anything. Any help would be appreciated. Thank you.
EDIT: I tried implementing the same thing with a single pane, much like implementing a simple tabbed browser in Visual Studio 2013. Same result. Only GO button works, and enter key does not produce anything.
If e.KeyCode = Keys.Enter Then
CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate(TextBox1.Text)
End If
You only calling navigate in TabControl1 (or 2). You need to call all from each of the TextBoxX_KeyDown Handlers.
If e.KeyCode = Keys.Enter Then
CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate(TextBox1.Text)
CType(TabControl2.SelectedTab.Controls.Item(0), WebBrowser).Navigate(TextBox2.Text)
End If
Hi I have the following form but cant figureout why its upbrubtly terminiating when difrent buttons are clicked?
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
Private Sub button1_MouseEnter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.MouseEnter
Dim TEST1 As Integer = System.IO.Directory.GetFiles("C:\test\test").Length
If TEST1 = 0 Then
Me.WebBrowser1.Navigate("http://www.hotmail.com")
End If
End Sub
Private Sub button1_MouseLeave(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.MouseLeave
Me.WebBrowser1.Navigate("http://WWW.facebook.com")
End Sub
Private Sub button2_MouseLeave(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.MouseLeave
Me.WebBrowser1.Navigate("http://WWW.facebook.com")
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Me.WebBrowser1.Navigate("file://C:\test\test")
Button1.Enabled = False
Button2.Enabled = True
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.WebBrowser1.Navigate("file://C:\test")
Button2.Enabled = False
Button1.Enabled = True
End Sub
Private Sub button2_MouseEnter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.MouseEnter
Dim TEST2 As Integer = System.IO.Directory.GetFiles("C:\test\test").Length
If TEST2 = 0 Then
Me.WebBrowser1.Navigate("http://www.hotmail.com")
End If
End Sub
The terms face book and hotmail are just random to keep company site private :)
I suspect the Mouse_Enter event and the Mouse_Leave events are not giving time to the webbrowser to fully load the document and maybe it is internally crashing.
Try checking if the webbrowser has finished working before navigating again and tell us:
Use
If WebBrowser1.ReadyState = WebBrowserReadyState.Complete
Me.WebBrowser1.Navigate("http://www.google.com")
End if