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how to change navigationpage font

I need to change the font. not sure how to do that

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Alternatives to using Grouped Listview or a way to disable the jump-list that...

I am developing a PCL project which involves using ListViews with group headers to make it easier for the user to distinguish which list items are where based upon which category they are in. This all...

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extend button, and react to isenabled changes

I've extended Button, as I have lots of requirements (like changing images, selected states, etc). I want to be able to tap into that for when the IsEnabled property changes on the button - I couldn't...

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iOS ProgressBar invisible until I scroll off screen and back

Hoping to get some ideas here. I have a ListView with custom ViewCells. In the constructor of the ViewCell I create a progressbar and set IsVisible to false: progressBar = new ProgressBar { IsVisible =...

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How replace TitleView with UITextField in iOS

In Android I can approach this by subclass PageRenderer and use ActionBar.SetCustomView(). I've tried it by subclass PageRenderer, codes like bellow //--------- this.NavigationItem.TitleView=new...

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Listview is not populating the all the items it received from WebAPI.

I have a list view which suppose to populate 200 items but it is only populating 12 items. It is working fine in IOS , its happening only in Andriod. The code i am using to list the items is var cell =...

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MessagingCenter - why does it need TSender?

I'm probably just not understanding something fundamental, but why does MessagingCenter need the type of the sender? Isn't the idea of a messaging system to keep the receiver from being dependent on...

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anyone else here using labs grid view?

and get crashes constantly when scrolling around due to null pointer exceptions? /// <returns>UICollectionViewCell.</returns> public override UICollectionViewCell CellForItem(NSIndexPath...

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Navigation.PushAsync isn't working after Navigation.PopToRootAsync

I'm using XLabs on Android I've currently got a login page with a register button. After the user fills out the registration form we send a verification code. What I am trying to do is remove the...

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Automatic authentication using settings

I have an app which needs user authentication. Once the app is closed and re-opened, user is again prompted for credentials. I would like to add functionality where the user is automatically logged in...

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Iterating through a ViewCell from the ItemSelected on a ListView

Hi, I have the following code (it grabs the address book from the device) public class AddressView : ContentPage { public AddressView() { this.Title = "Native address book"; CreateView(); } async void...

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Disable Webview in a scrollview

Hi, I want to disable the scrolling webview inside a scrollview. I have a simple stacklayout with a label, imageview, webview and all inside a scrollview. I want that the three element scrolling...

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how to enable paging for scrollview

is there a way to do it, or do I need to extend the scrollview renderer?

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Compiling C# 1.0 program

I downloaded and installed XAmarin but I built successfully a C# 1.0 program but I could not find the Run option activated ???

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CustomRenderer for Windows Phone always has a Control property of null?

I am building a custom renderer for my Windows Phone project. I tried many things, but no matter what I do, the Control property is null when entering the OnElementChanged callback. Here's an example I...

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Back button not showing up (visible) in iOS

I am working with Xamarin Forms (version 1.4.0.6341). The back button in iOS is not showing up.. What I'd like to have is a back button on the left side of the title of the Navigation Page. What I...

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Trying to create a custom picker in Xamarin Forms

I'm trying to create a custom picker with 3 components. I followed the tutorial on the Xamarin site here. I got the control to work, except when I click the Done button on the picker (This is the...

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How stable is Xamarin.Forms on Android

I am planning to start a business application with Xamarin.Forms on Android (iOS and Windows phone later). Since I saw lots of bug fixes in each release, I am just wondering how stable the current...

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ImageSource - Argument cannot be null exception

Sorry if this is a bit of a crosspost, but I'm having trouble telling if this is a Forms issue or an iOS one. Basically, i'm creating an ImageSource using ImageSource.FromStream(() => memorystream),...

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Xamarin Forms Android project is requiring JetBrains.Annotations.PCL328. I do...

I created a Xamarin Forms project and when I compiled, I am getting the following error. Exception while loading assemblies: System.IO.FileNotFoundException: Could not load assembly...

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