I have a slight problem with XamarinForms, which I am fairly new with.
I do have a grid with several Items in it (ListView, Label, Stacklayout, Listview).
I thought setting RowDefinitions = "Auto" for each row, would make the whole Page scrollable.
But instead I have a scrollbar on each individual listView.
I have added a snippet of my code with one of the listViews inside.
How do I get the listViews shown in their full size and the scrollbar be for the whole page?
I have already tried a scrollview instead of the grid, but it did not work.
Picture of Content in Emulator
Picture of Whole Page
Xamarin Forms:
<Grid
Padding="10"
RowDefinitions="Auto,Auto,Auto,Auto"
ColumnDefinitions="*"
>
<Label Padding="20" FontAttributes="Bold" FontSize="40" Text="{Binding DisplayName}" Grid.Row="0"/>
<ListView ItemsSource="{Binding News}"
HasUnevenRows="True"
IsPullToRefreshEnabled="False"
Grid.Row="1">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<StackLayout Padding="10">
<Label Text="{Binding DateTimeString}"/>
<Label Text="{Binding Text}" MaxLines="4"/>
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.Header>
<Grid ColumnDefinitions="*,Auto"
Padding="10"
VerticalOptions="Center">
<Label Text="News"
Grid.Column="0"
FontAttributes="Bold"
FontSize="32"/>
<Label Text="mehr Anzeigen"
Grid.Column="1"
HorizontalTextAlignment="End"/>
</Grid>
</ListView.Header>
</ListView>
You can put the items in ScrollView which is capable of scrolling its content.
refer to: https://learn.microsoft.com/en-us/xamarin/xamarin-forms/user-interface/layouts/scrollview
Related
Iam using Carousel view control available in Xamarin form(Version 5).
In my case i used Listviews inside carousel view. It works fine if scroll by swiping to left or right, but if i programmatically set the ScrollTo or Position property for the carousel view using button click then it is scrolling multiple times though i'm setting single incremental value.
I added SnapPointsType="MandatorySingle" as mentioned here
One more issue is if my current carousel position is zero and moving to last position or more then one is not working.
<AbsoluteLayout Margin="2" BackgroundColor="Transparent">
<CarouselView
x:Name="MyCarousalView"
AbsoluteLayout.LayoutBounds="0,0,1,1"
AbsoluteLayout.LayoutFlags="All"
Scrolled="CarouselViewScrolled">
<CarouselView.ItemsLayout>
<LinearItemsLayout Orientation="Horizontal" ItemSpacing="0" SnapPointsType="MandatorySingle" />
</CarouselView.ItemsLayout>
<CarouselView.ItemTemplate>
<DataTemplate>
<ListView
HorizontalOptions="FillAndExpand"
VerticalOptions="FillAndExpand"
ItemsSource="{Binding .}"
x:FieldModifier="public">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell Tapped="ViewCellTapped">
<StackLayout Padding="0">
<StackLayout Padding="20,1" VerticalOptions="StartAndExpand" Spacing="0" >
<Label
FontSize="16"
Text="{Binding Description}"
FontAttributes="Bold"/>
<Label
FontSize="14"
Text="{Binding CreatedDate}" />
</StackLayout>
<Label HorizontalOptions="FillAndExpand" Padding="0" HeightRequest="1" BackgroundColor="#D4D4D4"/>
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</DataTemplate>
</CarouselView.ItemTemplate>
</CarouselView>
</AbsoluteLayout>
Next button click event
private void NextClicked(object sender, EventArgs e)
{
MyCarousalView.ScrollTo((MyCarousalView.Position + 1) < _weekDaysList.Count ? MyCarousalView.Position + 1 : 0);
}
Carousel view binding:
List<List<Note>> _myList;
_myList=getData(); //based on service response
MyCarousalView.ItemsSource = null;
MyCarousalView.ItemsSource = _myList;
Screen recording with issue image
Screen video
Please letme know if any solution/workaround. Thanks
I have a list of many records and i want to show each record on one single page.
What i want is, When we do swipe up from bottom of the page, next record in list should show with animation. similarly, when we do swipe down from top of the page, previous record in list should show with animation.
I don't know how to achieve this. hope for better solution
Caraousel View with orientation and snap points should give you desired results
<CarouselView BindingContext="{x:Reference BottomTabGridPageXaml}" ItemsSource="{Binding StudentList}"
VerticalOptions="FillAndExpand">
<CarouselView.ItemsLayout>
<LinearItemsLayout Orientation="Vertical" SnapPointsType="MandatorySingle"/>
</CarouselView.ItemsLayout>
<CarouselView.ItemTemplate>
<DataTemplate>
<StackLayout VerticalOptions="FillAndExpand">
<Label Text="{Binding Id}" HorizontalOptions="Center" VerticalOptions="CenterAndExpand"/>
<Label Text="{Binding Name}" HorizontalOptions="Center" VerticalOptions="CenterAndExpand"/>
<Label Text="{Binding Number}" HorizontalOptions="Center" VerticalOptions="CenterAndExpand"/>
<Label Text="{Binding Age}" HorizontalOptions="Center" VerticalOptions="CenterAndExpand"/>
</StackLayout>
</DataTemplate>
</CarouselView.ItemTemplate>
</CarouselView>
I have a List view with fixed Row Height. Inside List view there is Label with large description. I am trying to make this label scroll able. Can anyone help please.
<ListView ItemsSource="{Binding ServiceList, Mode=TwoWay}" RowHeight="100">
<ListView.ItemTemplate>
<DataTemplate x:DataType="models:ServiceModel">
<ViewCell>
<ScrollView
Margin="0"
Padding="0"
HeightRequest="50">
<Label
LineBreakMode="WordWrap"
Style="{StaticResource blackColorLabel}"
Text="{Binding ServiceDescription}" />
</ScrollView>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
As mentioned in the comments, you shouldn't nest scrollviews because the behavior is erratic. You can use BindableLayout though.
<StackLayout BindableLayout.ItemsSource="{Binding ServiceList}">
<BindableLayout.ItemTemplate>
<DataTemplate x:DataType="models:ServiceModel">
<ScrollView
Margin="0"
Padding="0"
HeightRequest="50">
<Label
LineBreakMode="WordWrap"
Style="{StaticResource blackColorLabel}"
Text="{Binding ServiceDescription}" />
</ScrollView>
</DataTemplate>
</BindableLayout.ItemTemplate>
RowHeight is not a thing for BindableLayouts, but you could probably wrap your Label in a ContentView and set the HeightReqeust of the ContentView to 100. Or maybe even just set your Label Height Request to 100 and see what that does.
I'm making a simple listview and got a problem with iOS header - I want to make it transparent, but the problem is, that listview items are sliding under heading. What I want to achieve, is that heading will slide up with listview items.
This is how it looks now
And this is how current code looks like:
<ListView x:Name="SingleBeanView"
ItemsSource="{Binding Beans}"
IsGroupingEnabled="true"
Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2"
BackgroundColor="Transparent">
<ListView.GroupHeaderTemplate>
<DataTemplate>
<ViewCell ios:Cell.DefaultBackgroundColor="Transparent" Height="52">
<Label Text="{Binding Heading}" TextColor="{StaticResource LightTextColor}" FontSize="Large" HorizontalOptions="Start" VerticalOptions="Start" Margin="15,10,0,0"/>
</ViewCell>
</DataTemplate>
</ListView.GroupHeaderTemplate>
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<StackLayout BackgroundColor="Transparent" Orientation="Vertical">
<StackLayout Orientation="Horizontal">
<Label Text="{Binding Field1}"/>
<Label Text="{Binding Field2}"/>
<Label Text="{Binding Field3}"/>
</StackLayout>
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
Unfortunately , if using GroupHeader in ListView , this can not achieve your want.This effect is designed by Apple . If want to modify ,this need more things and time to do about customing listview.
Here is a solution for native ios, you can have a try with custom renderer to do.However, after testing this can not work in Xamarin.
So the last way maybe need custom cell to realize it--Puttinng header in Cell . Then That means you can not use GroupHeaderTemplate.
Another discussion.
Im working on styling up my ListView. In my ItemTemplate are only two Labels in a Stacklayout with Vertical Orientation. As you can see in the Picture there are some spacing between the two Labels. I dont want this space and have the Labels direct under each other. Has someone an advice?
ListView with Label-Background
<ListView x:Name="ItemList"
ItemSelected="ItemList_ItemSelected"
HasUnevenRows="True"
IsGroupingEnabled="true"
GroupDisplayBinding="{Binding LongName}"
GroupShortNameBinding="{Binding ShortName}"
SeparatorVisibility="None">
<ListView.GroupHeaderTemplate>
<DataTemplate>
<ViewCell>
<ViewCell.View>
<StackLayout Orientation="Horizontal"
BackgroundColor="{StaticResource LightGreyColor}"
Padding="20,10,0,10">
<Label Text="{Binding LongName}"
Style="{DynamicResource DateLabel}"/>
</StackLayout>
</ViewCell.View>
</ViewCell>
</DataTemplate>
</ListView.GroupHeaderTemplate>
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<ViewCell.View>
<StackLayout Orientation="Vertical"
Padding="20,10,0,10">
<Label Text="{Binding Name}"
Style="{DynamicResource ItemTitleLabel}"
BackgroundColor="Bisque"/>
<Label Text="{Binding Description}"
Style="{DynamicResource SubTitleLabel}"
BackgroundColor="Bisque"/>
</StackLayout>
</ViewCell.View>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
I remember that default spacing between items in StackLayout (and between rows in a Grid) is more than 0. If you want no space between items you can simply add Spacing="0" attribute in your StackLayout.
StackLayout has a default Spacing of 10, you need to set it to 0 if you don't want the spacing between items.