i am using this code under my form1_load
notifyIcon1.Visible = true;
notifyIcon1.ShowBalloonTip(5000, "Welcome", "Hello " + User, ToolTipIcon.Info);
I even checked my registery and the value was 1. Why is the baloon not showing?
I do have a icon form my notify icon. and it is showing up. The Baloon is not though!
Looks like you forgot to set the Icon for it like this
notifyIcon1.Icon = SystemIcons.Exclamation;
notifyIcon1.Visible = true;
notifyIcon1.ShowBalloonTip(5000, "Welcome", "Hello " + User, ToolTipIcon.Info);
Also please read for more inormation on issues with NI http://www.csharp411.com/notifyiconshowballoontip-issues/
You may need to post the rest of the code that's in your form's load event, but here's a couple of suggestions:
Make sure the form's Load event is actually hooked up.
Make sure you've assigned an icon for the notify icon.
Also, note that the balloon tip isn't guaranteed to show. See the Remarks section on msdn's NotifyIcon.ShowBalloonTip Method article:
Remarks Minimum and maximum timeout values are enforced by the operating system and are typically 10 and 30 seconds,
respectively, however this can vary depending on the operating system.
Timeout values that are too large or too small are adjusted to the
appropriate minimum or maximum value. In addition, if the user does
not appear to be using the computer (no keyboard or mouse events are
occurring) then the system does not count this time towards the
timeout.
Only one balloon tip can display on the taskbar at a time. Attempting
to display a balloon tip when one is currently displayed on the
taskbar causes the timeout value to be ignored. The behavior is
slightly different depending on the operating system and whether the
balloon tip is from another, or the same, application. When the second
balloon tip is from another application, the first balloon tip will
display for the minimum timeout value before the second appears,
regardless of the value of timeout. In most cases, if the balloon tips
are from the same application, the first balloon tip immediately
closes when another call to the ShowBalloonTip method is made. In some
cases the second balloon will open on top of the first balloon.
The title text will display in a bold font near the top of the
balloon.
Here is some sample code for what #MetroSmurf has already mentioned. Note that this.InitializeComponent(); must be called before the NotifyIcon is shown (usually in the form constructor).
public Form1()
{
this.InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
notifyIcon1.Icon = new Icon(#"C:\SomePath\MyIcon.ico");
notifyIcon1.Visible = true;
notifyIcon1.ShowBalloonTip(5000, "Welcome", "Hello " + User, ToolTipIcon.Info);
}
Also ensure that windows is configured to allow notifications. In Windows 7 right-click taskbar, click Properties, Customize... in the notification area, tick the Always show all icons and notifications on the taskbar option, click OK.
Related
I use the .NET Framework System.Windows.Forms.NotifyIcon class to display a tray icon and tray notifications. When I call ShowBalloonTip on its instance, first the previously displayed notification displays again, then it hides, and only after a while does the expected one is displayed. It seems that historical notifications are displayed first unless I remove them manually from the notification center.
What can I do programmatically to prevent showing the historical notifications again?
Here's how I initialize the notify icon:
notifyIcon.Icon = Properties.Resources.tray_icon;
notifyIcon.Visible = true;
notifyIcon.BalloonTipTitle = Language.TrayMessageTitle;
Here's how I show the toast:
notifyIcon.BalloonTipIcon = icon;
notifyIcon.BalloonTipText = message;
notifyIcon.ShowBalloonTip(0);
The icon is either ToolTipIcon.Error or ToolTipIcon.Info, and I don't show a toast with the same icon twice, so they always toggle. But this does not seem to matter.
The timeout param is 0, because it's not used since Windows Vista.
The toast is displayed as a result of an application state change, not as a result of a user action like clicking.
So I decided to stick with disposing the notify icon instance and recreating it every time I display a toast notification. I don't think it's fine, but I couldn't find a better solution.
I also dispose the notify icon on application shutdown to clean the notification center from previously displayed notifications. Otherwise, the last one displays first when another application displays a toast.
I am facing an unexpected behavior of Keyboard showing and hiding in UWP app working on tablet with windows 10.
After carefully testing again and again i noticed that this issue comes when you have focus on input box and keyboard is opened for it. Now focusing next input needs layout adjustment so that it should not be hidden by keyboard. When you try to focus next element, by default previously opened keyboard hides and now i'm not able to open keyboard un till this new input box lose focus and manually gain focus again.
So for controlling this issue i want to prevent automatic hide and show of keyboard every time i switch focus to new textbox. It should open keyboard once the page load (already found solution using InputPane) and hiding should only be by clicking cancel (x) button.
Please check this video for clearly understanding the issue.
https://www.dropbox.com/s/1c876uwytywio1t/Soft%20Keyboard%20Issue.mp4?dl=0
Please vote this suggestion if anyone else is also facing this issue.
https://wpdev.uservoice.com/forums/110705-universal-windows-platform/suggestions/34170142-inputpane-does-not-open-when-focus-is-shifted-to-n
This issue has been partially resolved in windows 10 version 1803 released on 30th April, 2018. In this version InputPane does not hide and show again and again when focus is shifted from one input element to other.
You may try to put a horizontal-stretched placeholder control (let say, StackPanel) at the bottom of your page, then let it the same size the on-screen keyboard does. That could prevent uncontrolled auto-hide trigger being fired (at least I did that trick on UWP mobile app):
// on the window initialization, remember the input pane
this._inputPane = InputPane.GetForCurrentView()
// then, subscribe to the events
_inputPane.Showing = (sender, args) =>
{
args.EnsuredFocusedElementInView = true; // skip default vertical-shift behavior
this._placeholderPane.Height = args.OccludedRect.Height;
}
_inputPane.Hiding = (sender, args) =>
{
this._placeholderPane.Height = 0;
}
Hope it helps on the Win10 desktop same way as it was on mobile one.
P.S. Yes, initially the placeholder pane is zero-height and collapsed.
I try to show a balloon tip like the one in the screenshot:
First I created a notifyIcon
Then I added this code to the Form1_Load function:
private void Form1_Load(object sender, EventArgs e)
{
notifyIcon1.Visible = true;
notifyIcon1.Icon = SystemIcons.Exclamation;
notifyIcon1.BalloonTipTitle = "Balloon Tip Title";
notifyIcon1.BalloonTipText = "Balloon Tip Text.";
notifyIcon1.BalloonTipIcon = ToolTipIcon.Error;
notifyIcon1.ShowBalloonTip(10000);
}
All I get is a little icon, and If I hover over it then i see the name of the notify icon.
I also tried this notifyIcon1.ShowBalloonTip(10000, "Text", "Title", ToolTipIcon.Warning); but then nothing happens.
I noticed in the function description of ShowBalloonTip, that the parameter "timeout" is deprecated from windows vista on, so what should I do instead?
PS: I run it on windows 10 64bit.
UPDATE 1/3:
I just created a fresh project, the balloon tip does not show either.
Maybe a setting in my OS blocks these messages?
UPDATE 2/3:
I downloaded the project from #pisi1001 but I get the same behaviour.
So I think it must be either a bug in windows 10, a wrong setting or group policy.
However like the next screenshots shows, the app is even allowed to show notifications:
UPDATE 3/3:
I noticed that you can even configure deeper if you double click on the setting, e.g. on "WindowsFormsApp1" from the last screenshot.
After I activated the setting in the red box in the last screenshot (which is basically saying "Show Notifications in the Info Center") I get at least notifications in the info center now:
This must be a Windows 10 Bug.
LAST UPDATE: A few weeks passed since I asked this question, now it seems to work and I am not sure why. Maybe Microsoft fixed it after I reported it to them.
How can I have my application minimize itself to the system tray in WindowsXP/Vista?
I'm also looking for a way to have a message display itself when the mouse is hovered on the icon. Is it possible to have two lines in the pop up balloon?
I assume you mean minimize to the System tray because you have talked about icons and message ballons?
The following code will set up a tray icon:
private void SetUpTrayIcon()
{
notifyIcon = new System.Windows.Forms.NotifyIcon();
notifyIcon.BalloonTipText = "Ballon minimize text";
notifyIcon.BalloonTipTitle = "Ballon minimize title";
notifyIcon.Text = "Icon hover text";
notifyIcon.Icon = new System.Drawing.Icon(
System.Reflection.Assembly.GetExecutingAssembly()
.GetManifestResourceStream("MyIcon.ico"));
notifyIcon.Click += new EventHandler(HandlerToMaximiseOnClick);
}
To show the icon in the tray (you may want to do this on the window state change event for example, do something like the following:
if (notifyIcon != null)
{
notifyIcon.Visible = true;
notifyIcon.ShowBalloonTip(2000);
}
To display a ballon on mouse hover you want to use the same code as above possibly in the mousemove for the icon.
Note: ShowBalloonTip is overloaded if you want to change the message at different points. The message the balloon displays will respect newlines eg Environment.NewLine can be added to it.
try
to minimize
this.WindowState = FormWindowState.Minimized;
to minimize to tray see this
What's the proper way to minimize to tray a C# WinForms app?
Bye
The popup balloon will display whatever is shown in the form's title bar (which is the form's .Text property). I don't know of any way to make it multi-lined (if there is a way, it's sure to be complicated and probably not worth the trouble).
This earlier question gives some answers to the basic question. Your toolbox contains a control called NotifyIcon - use this to place an icon in the system tray.
In the application I am working with, if the user changes the value in a cell that is say positive to negative and the value is supposed to be positive at all times, the application forces the positive value. Right now, when this happens there is no alert shown to the user.
I would like to show a little unobtrusive alert, like the one that shows up when a new mail arrives in outlook, or something similar, so that the user can be alerted that the application did something on her behalf.
I tried using the NotifyIcon class to do this. But the problem with that class seems to be that the timeout on it doesn't work as expected. I want to show this alert for not more than 2s and the BallonTipText lasts for longer than 10s.
Is there a .NET class for this purpose?
If not, is there an alternate way to do something like this?
Using a notification icon for this case seems wrong to me. The user's attention is, when entering something into a cell, on the cell. If you display the notification on the lower right of the screen the user is very likely to miss it, or worse, it disrupts his work flow.
You might instead consider adding a balloon tip to the cell the user is editing. Kinda like the balloon tip Windows Explorer is showing on Vista and Windows 7 on renaming a file when you try entering a character that is disallowed in file names:
I have had this problem in the past. I gather that the timeout problem is because the operating system fixes a minimum value of 10 seconds and a maximum value of 30 seconds (or something like that).Edit Oh and this doesn't include time that a user is idle.Edit
I have used the following code in the past to get around this.
Just to clarify
Declare a public variable, say called ballonTipActive with a value of 0.
Insert a timer control disabled with 100ms delay and create an event from BalloonTipShown from the notifyicon control.
Then
private void ptNotifyIcon_BalloonTipShown(object sender, EventArgs e)
{
timer1.Enabled = true;
balloonTipActive = 0;
}
private void timer1_Tick(object sender, EventArgs e)
{
balloonTipActive++;
if (balloonTipActive == 40)
{
ptNotifyIcon.Visible = false;
ptNotifyIcon.Visible = true;
balloonTipActive = 0;
timer1.Enabled = false;
}
}
Setting the visible property to false then true gets rid of the balloon.