There is a shadow over the CalendarDatePicker flyout. This "effect" is probably connected to the Dialog which host the control. I attached the Dialog's function. Do you know how to remove it?
Image: https://ibb.co/ZJjqfWs
private async void CreateNewDocumentDialog() {
// Creating dialoge window
var textBlock1 = new TextBlock
{
Text = "Kérem adja meg az alábbi adatokat!",
FontSize = 16
};
var docName = new TextBox
{
Name = "docName",
Margin = new Thickness(0, 10, 0, 10),
PlaceholderText = "Documentum neve"
};
var docValidUntil = new CalendarDatePicker
{
Header = "Dokumentum érvényessége:",
Date = DateTime.Now.AddYears(4),
};
var contentPanel = new StackPanel();
contentPanel.Children.Add(textBlock1);
contentPanel.Children.Add(docName);
contentPanel.Children.Add(docValidUntil);
ContentDialog CreateNewDocumentDialog = new ContentDialog
{
Content = contentPanel,
PrimaryButtonText = "Új bejegyzés létrehozása",
CloseButtonText = "Mégse",
// Default button responds to Enter
DefaultButton = ContentDialogButton.Primary
};
// Waiting for user input
ContentDialogResult result = await CreateNewDocumentDialog.ShowAsync();
if (result == ContentDialogResult.Primary)
{
// Process user input if Create New button pressed/activated
if (docName.Text != "")
{
var tempDate = docValidUntil.Date;
DocumentList.Add(new Document(docName.Text, tempDate.Value.DateTime));
}
}
else
{
// Exit dialog if Cancel button pressed
}
}
Related
I noted something wrong, either it's from me or a bug when experimenting with .Net MAUI.
I have an ObservableCollection property :
public ObservableCollection<LotoModel> Lotteries { get; set; } = new();
and an ObservableProperty (using community mvvm toolkit) :
[ObservableProperty]
public string _lotteriesCount = "A";
When ever I click/touch a Button I load my Lotteries collection. (tested with an hard coded 4 static LotoModel items) :
static GridModel _testGM1 = new GridModel { Name = "TEST Grid #1", Start = 0, End = 10, NumberOfDraw = 2 };
static GridModel _testGM2 = new GridModel { Name = "TEST Grid #2", Start = 0, End = 20, NumberOfDraw = 5 };
static GridModel _testGM3 = new GridModel { Name = "TEST Grid #3", Start = 0, End = 30, NumberOfDraw = 8 };
static GridModel _testGM4 = new GridModel { Name = "TEST Grid #4", Start = 0, End = 50, NumberOfDraw = 10 };
static LotoModel _testLM1 = new LotoModel { Name = "TEST Lottery #1", IsFavorite = true, Grids = new ObservableCollection<GridModel> { _testGM1, _testGM2 } };
static LotoModel _testLM2 = new LotoModel { Name = "TEST Lottery #2", IsFavorite = false, Grids = new ObservableCollection<GridModel> { _testGM3, _testGM4 } };
And the Button command Task :
async Task GetLotteriesAsync()
{
if (IsBusy)
return;
try
{
IsBusy = true;
_buttonCount++;
LotteriesCount = _buttonCount.ToString();
if (Lotteries.Count != 0)
Lotteries.Clear();
Lotteries.Add(_testLM1);
Lotteries.Add(_testLM2);
Lotteries.Add(_testLM1);
Lotteries.Add(_testLM2);
}
catch (Exception e)
{
Log.Error(e, "Error while trying to get our lotteries");
await Application.Current.MainPage.DisplayAlert("Error!", e.Message, "OK");
}
finally
{
IsBusy = false;
}
}
So each time I touch/click my Button, LotteriesCount string property get's updated with a static int counter field value :
static int _buttonCount = 0;
That is OK.
Now I also update this property via this CollectionChangedEventHandler :
public LotteriesVM(LotteryService lotteryService)
{
GetLotteriesCommand = new Command(async () => await GetLotteriesAsync());
Lotteries.CollectionChanged += LotteriesChangedMethod;
}
private void LotteriesChangedMethod(object sender, NotifyCollectionChangedEventArgs e)
{
LotteriesCount = _lotteriesCount + "_" + Lotteries.Count.ToString();
}
And now here the unexpected behavior : The label only update the counter part of it string property, the remaining "_1_2_3_4" added in the handler doesn't get updated in UI.
Note that I'm using a Android Pixel 5 emulator from VS 17.3 preview.
And I also noted that if I force orientation of the emulated android device, then the Label is updated !
Even more, if I force a XAML MinimalWidthRequest="200" for my Label, then it is correctly updated now !
<!-- without MinimumWidthRequest, the label update only after forcing a screen orientation-->
<Label Text="{Binding LotteriesCount}" MinimumWidthRequest="200" HorizontalOptions="Center" FontAttributes="Bold" FontSize="22" TextColor="OrangeRed"/>
So am I doing something wrong or it is a bug ? Thank you.
Hey all I am not sure why I am having such a hard time with this but I am needing to be able to change a tiles isEnabled property depending on if my program detects an internet connection or not.
The WPF code that I am using and needing to change is the following:
<dxlc:TileLayoutControl x:Name="tileLayoutControl1" Margin="150,63,153,57" Padding="5"
AllowAddFlowBreaksDuringItemMoving="False" AllowItemMoving="False" Orientation="Horizontal" ScrollBars="None"
TileClick="tileLayoutControl1_TileClick">
</dxlc:TileLayoutControl>
This gets populated by the code behind on startup:
private void createMenu()
{
List<String> menuIcons = new List<string>();
menuIcons.Add("gamesIcon.png");
menuIcons.Add("movieIcon.png");
menuIcons.Add("musicIcon.png");
menuIcons.Add("televisionIcon.png");
menuIcons.Add("youTubeIcon.png");
menuIcons.Add("androidIcon.png");
foreach (String item in menuIcons)
{
Image finalImage = new Image();
BitmapImage image = new BitmapImage();
image.BeginInit();
image.UriSource = new Uri("/img/" + item.ToString(), UriKind.Relative);
image.EndInit();
finalImage.Source = image;
image = null;
tileLayoutControl1.Children.Add(new Tile()
{
Content = finalImage,
Name = item.ToString().Replace(".png", ""),
Tag = item.ToString().Replace(".png", "").Replace(".jpg", ""),
Width = 255,
Height = 288,
IsEnabled = false,
Margin = new Thickness(0, 0, 50, 20),
Background = Brushes.Transparent,
BorderThickness = new Thickness(0, 0, 0, 0)
}
}
}
and finally the code that I have checking the internet connection within a timer:
private bool checkInternet()
{
try
{
Ping myPing = new Ping();
PingReply reply = myPing.Send("google.com", 1000, new byte[32], new PingOptions());
return (reply.Status == IPStatus.Success);
}
catch (Exception)
{
return false;
}
}
public firstWindow()
{
InitializeComponent();
var startTimeSpan = TimeSpan.Zero;
var periodTimeSpan = TimeSpan.FromMinutes(5);
var timer = new System.Threading.Timer((e) =>
{
bool hasInternet = checkInternet();
TileLayoutControl test = (TileLayoutControl)this.tileLayoutControl1.FindName("youTubeIcon");
test.IsEnabled = true;
tileLayoutControl1.RegisterName("youTubeIcon", this.isEnabled = true);
}, null, startTimeSpan, periodTimeSpan);
}
I am currently not getting any errors for the lines:
TileLayoutControl test = (TileLayoutControl)this.tileLayoutControl1.FindName("youTubeIcon");
test.IsEnabled = true;
tileLayoutControl1.RegisterName("youTubeIcon", this.isEnabled = true);
But test is null and RegisterName doesn't seem to change the isEnabled property when I try to click on the tile.
I've also read that using Command="{Binding ClickCommand}" may be my answer but that seems to only pertain to MVVM type of patterns which I am not using for this particle program.
I also know that checking the tileLayoutCibtril1 has a Children property that does contain my dynamically created icons but tileLayoutCibtril1.Children does not have a .FindName proeprty.
So what am I missing?
Try to call ApplyTemplate on TileLayoutControl after foreach statement. The template for TileLayoutControl has not yet been applied and therefore FindName returns null. ApplyTemplate builds the current template’s visual tree
foreach (String item in menuIcons)
{
...
}
tileLayoutControl1.ApplyTemplate();
I have the following problem. When I start the application, my content does not appear, and only the banner of Google Ad Mob appears.
Only the GPS permission message appears but not the content itself.
The code I use :
public MainPage()
{
InitializeComponent();
_restServiceForecast = new RestServiceForecast();
_ = DisplayHourlyForecastStartUp();
_ = ButtonClickedGPS();
co2lbl.Text = "CO2";
nolbl.Text = "NO";
no2lbl.Text = "NO2";
o3lbl.Text = "O3";
so2lbl.Text = "SO2";
pm2_5lbl.Text = "PM2_5";
pm10lbl.Text = "PM10";
nh3lbl.Text = "NH3";
frameFinePowders.IsVisible = false;
AdmobControl admobControl = new AdmobControl()
{
AdUnitId = AppConstants.BannerId
};
Label adLabel = new Label() { Text = "Ads will be displayed here!" };
Content = new StackLayout()
{
Children = { adLabel, admobControl }
};
this.Title = "Admob Page";
}
How do I make the banner appear under a certain frame that I want?
I'm writing a c# console application that sends toast notifications in VS2017 on a Windows 10 machine. When I run my code and have only defined adaptive text content for my notification it runs correctly and displays the desired text. If I add actions, it no longer displays the adaptive text I defined ("title" and "content" below), nor does it have the option to perform said actions. If I try to add additional visuals such as a logo or picture, they do not appear but the adaptive text is unaffected.
string category = "Notifications";
string title = "New Test Notification!;
string content = "Testing push notifications!";
ToastContent toastContent = new ToastContent()
{
Visual = new ToastVisual()
{
BindingGeneric = new ToastBindingGeneric()
{
Children =
{
new AdaptiveText()
{
Text = title
},
new AdaptiveText()
{
Text = content
}
},
/*AppLogoOverride = new ToastGenericAppLogo()
{
Source = "https://unsplash.it/64?image=883",
HintCrop = ToastGenericAppLogoCrop.Circle
}*/
}
},
/*Actions = new ToastActionsCustom()
{
Buttons =
{
new ToastButton("check", "check")
{
ImageUri = "check.png"
},
new ToastButton("cancel", "cancel")
{
ImageUri = "cancel.png"
}
}
}*/
};
string toastXml = toastContent.GetContent();
XmlDocument doc = new XmlDocument();
doc.LoadXml(toastXml);
var toast = new ToastNotification(doc);
ToastNotificationManager.CreateToastNotifier(category).Show(toast);
Result when above code is run with or without the first block of commented code:
Result when code is run with the second block of commented code:
We're trying to build a Chat App using Xamarin Forms, but we keep getting this annoying bug with the Android keyboard. Whenever the "Send" button is tapped, the focus on the Entry (text box for chatting) is lost and the keyboard disappears. That isn't what we wanted so we added this line to the TapGestureRecognizer:
messageEntry.Focus();
But for some reason, this doesn't happen fast enough, and often the keyboard goes down and immediately up again. This prevents users from quickly posting multiple message sequentially. Does anybody know how this can be fixed?
Thanks to the answer of #AdamKemp in this post, here is my solution. If the touch is within my EntryStackLayout (don't forget to create the empty custom renderer), then I don't dismiss the keyboard (which is what DispatchTouchEvent will do if CurrentFocus is EditText).
public class EditorAndButtonReproPage : ContentPage
{
public EditorAndButtonReproPage()
{
BackgroundColor = Color.Gray;
Padding = 50;
var editor = new Editor {HorizontalOptions = LayoutOptions.FillAndExpand};
var editorButton = new Button {Text = "OK", HorizontalOptions = LayoutOptions.End};
var editorLayout = new EntryStackLayout { Orientation = StackOrientation.Horizontal, Children = { editor, editorButton}, VerticalOptions = LayoutOptions.Start};
var entry = new ExtendedEntry { Placeholder = "Entry", HorizontalOptions = LayoutOptions.FillAndExpand };
var entryButton = new Button { Text = "OK", HorizontalOptions = LayoutOptions.End };
var entryLayout = new EntryStackLayout { Orientation = StackOrientation.Horizontal, Children = { entry, entryButton }, VerticalOptions = LayoutOptions.Start };
Content = new StackLayout {Children = {editorLayout, entryLayout}};
}
}
and in the MainActivity:
private bool _ignoreNewFocus;
public override bool DispatchTouchEvent(MotionEvent e)
{
var currentView = CurrentFocus;
var parent = currentView?.Parent?.Parent;
var entryStackLayout = parent as EntryStackLayout;
if (entryStackLayout != null)
{
var entryLayoutLocation = new int[2];
entryStackLayout.GetLocationOnScreen(entryLayoutLocation);
var x = e.RawX + entryStackLayout.Left - entryLayoutLocation[0];
var y = e.RawY + entryStackLayout.Top - entryLayoutLocation[1];
var entryStackLayoutRect = new Rectangle(entryStackLayout.Left, entryStackLayout.Top, entryStackLayout.Width, entryStackLayout.Height);
_ignoreNewFocus = entryStackLayoutRect.Contains(x, y);
}
var result = base.DispatchTouchEvent(e);
_ignoreNewFocus = false;
return result;
}
public override Android.Views.View CurrentFocus => _ignoreNewFocus ? null : base.CurrentFocus;
It'd be a bit of a hack, but you could spin off an async task that waits 50ms and then invokes the messageEntry.Focus() line on the main UI thread...