• 0

[.NET] Multi-Panel Application?


Question

Hi,

I've made a simple application in VB.NET that switches between two different panels, but I'm not sure if it's the most efficient way to do it. Please see the below code and compile the file and let me know if there's any better way to do it. Thanks!

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 Panel1 As System.Windows.Forms.Panel
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Panel2 As System.Windows.Forms.Panel
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents MainMenu1 As System.Windows.Forms.MainMenu
    Friend WithEvents MenuItem1 As System.Windows.Forms.MenuItem
    Friend WithEvents MenuItem2 As System.Windows.Forms.MenuItem
    Friend WithEvents MenuItem3 As System.Windows.Forms.MenuItem
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Panel1 = New System.Windows.Forms.Panel
        Me.Label1 = New System.Windows.Forms.Label
        Me.Panel2 = New System.Windows.Forms.Panel
        Me.Label2 = New System.Windows.Forms.Label
        Me.MainMenu1 = New System.Windows.Forms.MainMenu
        Me.MenuItem1 = New System.Windows.Forms.MenuItem
        Me.MenuItem2 = New System.Windows.Forms.MenuItem
        Me.MenuItem3 = New System.Windows.Forms.MenuItem
        Me.Panel1.SuspendLayout()
        Me.Panel2.SuspendLayout()
        Me.SuspendLayout()
        '
        'Panel1
        '
        Me.Panel1.BackColor = System.Drawing.SystemColors.ActiveCaption
        Me.Panel1.Controls.Add(Me.Label1)
        Me.Panel1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.Panel1.Location = New System.Drawing.Point(0, 0)
        Me.Panel1.Name = "Panel1"
        Me.Panel1.Size = New System.Drawing.Size(292, 271)
        Me.Panel1.TabIndex = 0
        '
        'Label1
        '
        Me.Label1.Font = New System.Drawing.Font("Verdana25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Label1.Location = New System.Drawing.Point(96, 88)
        Me.Label1.Name = "Label1"
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "This Is Panel 1"
        Me.Label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
        '
        'Panel2
        '
        Me.Panel2.BackColor = System.Drawing.SystemColors.Info
        Me.Panel2.Controls.Add(Me.Label2)
        Me.Panel2.Dock = System.Windows.Forms.DockStyle.Fill
        Me.Panel2.Location = New System.Drawing.Point(0, 0)
        Me.Panel2.Name = "Panel2"
        Me.Panel2.Size = New System.Drawing.Size(292, 271)
        Me.Panel2.TabIndex = 1
        '
        'Label2
        '
        Me.Label2.Font = New System.Drawing.Font("Verdana25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Label2.Location = New System.Drawing.Point(32, 48)
        Me.Label2.Name = "Label2"
        Me.Label2.TabIndex = 1
        Me.Label2.Text = "This Is Panel 2"
        Me.Label2.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
        '
        'MainMenu1
        '
        Me.MainMenu1.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.MenuItem1})
        '
        'MenuItem1
        '
        Me.MenuItem1.Index = 0
        Me.MenuItem1.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.MenuItem2, Me.MenuItem3})
        Me.MenuItem1.Text = "Change Panel"
        '
        'MenuItem2
        '
        Me.MenuItem2.Index = 0
        Me.MenuItem2.Text = "Panel 1"
        '
        'MenuItem3
        '
        Me.MenuItem3.Index = 1
        Me.MenuItem3.Text = "Panel 2"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 271)
        Me.Controls.Add(Me.Panel1)
        Me.Controls.Add(Me.Panel2)
        Me.Menu = Me.MainMenu1
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.Panel1.ResumeLayout(False)
        Me.Panel2.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub MenuItem2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItem2.Click
        Panel1.Visible = True
        Panel2.Visible = False
    End Sub

    Private Sub MenuItem3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItem3.Click
        Panel1.Visible = False
        Panel2.Visible = True
    End Sub
End Class

Once again, thanks in advance!

Link to comment
https://www.neowin.net/forum/topic/379148-net-multi-panel-application/
Share on other sites

9 answers to this question

Recommended Posts

  • 0

If the panels appear one over the other (that is, they have the same size and location) then you should consider changing their zorder... like this:

Private Sub MenuItem2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItem2.Click
  Panel1.BringToFront()
End Sub

Private Sub MenuItem3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItem3.Click
  Panel2.BringToFront()
End Sub

  • 0
  bangbang023 said:
You could simply do a panel1.bringtofront() command. That should make things a little easier and cleaner if you start having many panels. I believe that command should still work.

586600388[/snapback]

Yeah either of those should work fine.

  • 0
  syko86 said:
Thanks for the replies =D. Is there any way to optimize it? I've an application that has 3 different panels and it takes up like 15MB of memory while running =(.

586600853[/snapback]

That's simply how .net works and while users will bitch and moan, it's nothing to worry about. The framework reserves memory for itself so it's readily accessible when needed, however, if another application requests any of that unused memory, the .net framework will immediately release it and let the other process use it.

This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Posts

    • Do you have a 365 account? I should have been more clear, I mean free accounts.
    • What?! "May 31 2024 knowledge cutoff"?
    • Amazon Alexa+ now has more than a million users by Aditya Tiwari Amazon's muscled-up voice assistant, Alexa+, has reached a new milestone. A company spokesperson told The Verge that Alexa+ has now crossed one million users. The e-commerce giant introduced Alexa+ earlier this year as its generative AI offering. Why? It's a new trend, and everyone is doing it. According to the company, Alexa Plus offers more natural and free-flowing conversations than its predecessor. You can speak half-formed thoughts using colloquial expressions, and the AI assistant should be able to understand you and provide an answer. Announcing its capabilities, Amazon previously said that you will be able to start a conversation on your Echo device and continue it on your phone, car, or computer. One million may not be a significant number when comparing it with the number of Alexa-enabled devices out there. Amazon revealed earlier this year that there are over 600 million Alexa devices globally. However, the number of Alexa+ users has increased from 'hundreds of thousands' in the previous month. The user base is not as big as that of other names like Gemini and ChatGPT because Amazon is still offering the generative AI assistant through an Early Access program, available to Prime and non-Prime members who own a compatible Echo device. We can find social media posts from different users who have been invited to try Alexa+. While there have been positive reviews from some, the road isn't buttery smooth for others. One user claimed that the early access Alexa+ has problems accessing some temperature sensors the previous version of Alexa would. "I also really dislike how it confidently will tell me something that is incorrect now instead of just saying it doesn't know like it used to tell me," the user added. The upgraded AI voice assistant will cost $19.99 per month, but is being offered for free to Prime subscribers. Alexa+ started rolling out in the US as part of its early access program. One reason why Amazon is giving Alexa+ a slow rollout is that the new devices and services chief, Panos Panay, wants to eliminate all the problems related to the generative AI assistant. Amazon's spokesperson told the publication that the early access program doesn't include features like brainstorming gift ideas, scheduling your next spa visit, ordering groceries hands-free, and jumping to your favorite scene on Fire TV. The program also doesn't offer the "new browser-based experience at Alexa.com," which would put Amazon's AI assistant in line with ChatGPT and Gemini. These missing features will be added in the coming weeks and months, as per the spokesperson, adding that almost 90% of the features are now a part of early access.
    • MSI's 32-inch 4K QD-OLED gaming monitor gets a big price cut for UK gamers and professionals by Paul Hill If you’re a gamer in the UK and looking for a monitor to upgrade to then check out the MSI MPG 321URX QD-OLED 31.5 Inch 4K UHD Gaming Monitor which you can now pick up for just 75% of its recommended retail price. The RRP of this monitor is £1,199, but thanks to this deal, you can get it for just £898.99 for a limited time (purchase link down below). With its 4K display, 240Hz refresh rate, and 0.03ms GTG, you’ll have the edge over other gamers by avoiding lag. At 31.5-inches, it’s the ideal monitor size if you’re sitting up close to it at a desk, you don’t want it too big at such a short range, but you also want to be able to see all the image details so 31.5-inches is a good balance. What makes QD-OLED stand out? There are loads of terms used to describe displays such as AMOLED, OLED, LED, and it can all get a bit confusing. This monitor adds yet another acronym called QD-OLED, which stands for Quantum Dot OLED. For you as a buyer, this means your new monitor has self-emitting pixels that deliver great black levels. It also features an enhanced sub-pixel arrangement for extra sharpness. The 31.5-inch 4K UHD monitor has a 3,840 x 2,160 pixel resolution making it ideal for playing games, but also watching movies in the best quality. Other important features worth mentioning are the 1.07 billion colors (10-bit) that the monitor can produce, its 99% DCI-P3 support, and DisplayHDR True Black 400 certification. All of these things make the monitor produce more accurate colours, potentially making it a good choice for professionals editing videos and photos too. Obviously, games will look good too. MSI has also packed in a fanless graphene heatsink which should help to increase the durability of the monitor long-term. This could extend the time until you need to buy a new monitor, further justifying its almost £900 price tag. Gaming and productivity features It’s not just the hardware that makes this monitor excel for gaming, it also comes with great software enhancements and connectivity options. On the software side, you get the following features: Smart Crosshair: Projects a customizable crosshair onto the screen to improve hip-fire accuracy and iron sights in first-person shooter games. Optix Scope: Gives you a built-in aim magnifier with multi-stage zooming and shortcut keys to quickly switch magnification levels. AI Vision: This automatically enhances brightness and colour saturation, particularly in dark areas of the screen, making it easier to see enemies hiding in shadows or dark corners. If you have two separate systems you want to connect to the monitor at once, you can do so with this monitor thanks to KVM support. You can view both sources with Picture-in-Picture and Picture-by-Picture modes. The MSI MPG 321URX QD-OLED 31.5 Inch 4K UHD Gaming Monitor also supports next-gen consoles with features like HDMI CEC Profile Sync, HDMI Variable Refresh Rate (VRR), and 4K:4K downscaling. In terms of connectivity and ergonomics, you get DisplayPort 1.4a, 2x HDMI 2.1 (CEC), USB Type-C with 90W power delivery, and a USB hub. The monitor uses a tilt-, swivel- & height-adjustable stand that is VESA compatible. Should you buy this monitor? The MSI MPG 321URX QD-OLED 31.5 Inch 4K UHD Gaming Monitor is definitely a product for serious gamers looking for top-tier visual fidelity and performance or content creators who need accurate colours and high resolution. Even with the significant discount, it’s still at a premium price and definitely not for everyone. If you are in one of the groups mentioned, then you should give serious consideration to buying the MSI MPG 321URX QD-OLED 31.5 Inch 4K UHD Gaming Monitor as it's the lowest price the monitor has been at on Amazon to date. MSI MPG 321URX QD-OLED 31.5 Inch 4K Gaming Monitor: £898.99 (Amazon UK) / RRP £1,199 This Amazon deal is U.K. specific, and not available in other regions unless specified. If you don't like it or want to look at more options, check out the Amazon UK deals page here. Get Prime, Prime Video, Music Unlimited, Audible or Kindle Unlimited, free for the first 30 days As an Amazon Associate we earn from qualifying purchases.
  • Recent Achievements

    • Enthusiast
      computerdave91111 went up a rank
      Enthusiast
    • Week One Done
      Falisha Manpower earned a badge
      Week One Done
    • One Month Later
      elsa777 earned a badge
      One Month Later
    • Week One Done
      elsa777 earned a badge
      Week One Done
    • First Post
      K Dorman earned a badge
      First Post
  • Popular Contributors

    1. 1
      +primortal
      533
    2. 2
      ATLien_0
      273
    3. 3
      +FloatingFatMan
      201
    4. 4
      +Edouard
      200
    5. 5
      snowy owl
      138
  • Tell a friend

    Love Neowin? Tell a friend!