xamarin.forms

问题 I'm trying to figure out how you can get the index from a list inside XAML. Context A product has multiple specification categories/groups which contain the specification details. Product & Ingrediënten are the specification groups. Land van afkomst : Nederland are the specs details In the XAML code, I'm using a nested list. The application needs to pass the Index so the users can delete and add specifications correctly. The index at Binding Source="0" /> & CommandParameter="0" needs to be

问题 I've been searching for days now for a guide on how to create the custom playback controls for LibVLCSharp that everyone seems to talk about, which I never found a guid for. I simply want to create other buttons with event handlers for the bottom playback control panel, I tried this but throws a System.NullReferenceException exception on startup while getting into break mode... <vlc:MediaPlayerElement MediaPlayer="{Binding MediaPlayer}" LibVLC="{Binding LibVLC}"> <vlc:MediaPlayerElement

问题 I've been searching for days now for a guide on how to create the custom playback controls for LibVLCSharp that everyone seems to talk about, which I never found a guid for. I simply want to create other buttons with event handlers for the bottom playback control panel, I tried this but throws a System.NullReferenceException exception on startup while getting into break mode... <vlc:MediaPlayerElement MediaPlayer="{Binding MediaPlayer}" LibVLC="{Binding LibVLC}"> <vlc:MediaPlayerElement

问题 In my Xamarin, I have two CardView (https://github.com/tiger4589/Xamarin.Forms-CardView) within separate Grid.Column . What I want to do is select a CardView (one at a time), which enables the Button. How could I acheive this? .xml code for CardView <Grid Grid.Column="0"> <cardView:CardView> <cardView:CardView.CardViewContent> <StackLayout> <Label Text="PIN" FontSize="18" HorizontalTextAlignment="Center"> </Label> </StackLayout> </cardView:CardView.CardViewContent> </cardView:CardView> </Grid

问题 In my Xamarin, I have two CardView (https://github.com/tiger4589/Xamarin.Forms-CardView) within separate Grid.Column . What I want to do is select a CardView (one at a time), which enables the Button. How could I acheive this? .xml code for CardView <Grid Grid.Column="0"> <cardView:CardView> <cardView:CardView.CardViewContent> <StackLayout> <Label Text="PIN" FontSize="18" HorizontalTextAlignment="Center"> </Label> </StackLayout> </cardView:CardView.CardViewContent> </cardView:CardView> </Grid

问题 Since the release of XF 3.2, it provided the ability to create your own custom TitleBar. This feature works well but I have a couple of problems that I am hoping someone can help me with. I am trying to hide the Burger Menu icon, but so far I have not been able to. I can hide the Back Button by doing the following: NavigationPage.HasBackButton="False" This does however still leave a slight vertical bar on the left side of the TitleBar, so if someone knows how to also remove that then great. I

问题 Since the release of XF 3.2, it provided the ability to create your own custom TitleBar. This feature works well but I have a couple of problems that I am hoping someone can help me with. I am trying to hide the Burger Menu icon, but so far I have not been able to. I can hide the Back Button by doing the following: NavigationPage.HasBackButton="False" This does however still leave a slight vertical bar on the left side of the TitleBar, so if someone knows how to also remove that then great. I

问题 Since the release of XF 3.2, it provided the ability to create your own custom TitleBar. This feature works well but I have a couple of problems that I am hoping someone can help me with. I am trying to hide the Burger Menu icon, but so far I have not been able to. I can hide the Back Button by doing the following: NavigationPage.HasBackButton="False" This does however still leave a slight vertical bar on the left side of the TitleBar, so if someone knows how to also remove that then great. I

问题 I am developing an application in Xamarin Forms 4.8 version with both side menu(Flyout) and bottom tabbar using Shell feature. My sidemenu has 4 items and bottom tabbar has 5 items. Both are having different items. Bottom tabbar with such 5 items are always need to be present around my application. When I click any item in side menu, the bottom tabbar items are replaced with side menu items. I don't know why. My AppShell.xaml page is shown below, <Shell xmlns="http://xamarin.com/schemas/2014

问题 I am developing an application in Xamarin Forms 4.8 version with both side menu(Flyout) and bottom tabbar using Shell feature. My sidemenu has 4 items and bottom tabbar has 5 items. Both are having different items. Bottom tabbar with such 5 items are always need to be present around my application. When I click any item in side menu, the bottom tabbar items are replaced with side menu items. I don't know why. My AppShell.xaml page is shown below, <Shell xmlns="http://xamarin.com/schemas/2014