I have a basic CollectionView:
<CollectionView x:Name="ItemsList" SelectionMode="Single">
<CollectionView.ItemTemplate>
<DataTemplate>
<Grid HeightRequest="80">
<Label Text="Hello world" VerticalOptions="Center"/>
</Grid>
</DataTemplate>
</CollectionView.ItemTemplate>
</CollectionView>
public MainPage()
{
InitializeComponent();
ItemsList.ItemsSource = new List<string>() { "1", "2", "3", "4" };
}
On Android, when the item is tapped you will get a simple tap effect:
I want to keep this effect. But if I change the background color according to the documentation:
<ContentPage.Resources>
<Style TargetType="Grid">
<Setter Property="VisualStateManager.VisualStateGroups">
<VisualStateGroupList>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="Selected">
<VisualState.Setters>
<Setter Property="BackgroundColor"
Value="LightSkyBlue" />
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
</VisualStateGroupList>
</Setter>
</Style>
</ContentPage.Resources>
The tap effect disappears. Is there some other way to do this?
You can use the Background instead of using the BackgroundColor and the effect will back.
<Setter Property="Background" Value="LightSkyBlue"/>
I'm trying to change the color of the bar that lights up when focusing on an Entry (see screenshot below for reference)
The bar is purple (on google pixel emulator) when I start typing.
Entry Bar
`
<Style TargetType="Entry">
<Setter Property="TextColor" Value="{AppThemeBinding Light={StaticResource Black}, Dark={StaticResource White}}" />
<Setter Property="BackgroundColor" Value="Transparent" />
<Setter Property="FontFamily" Value="OpenSansRegular"/>
<Setter Property="FontSize" Value="14" />
<Setter Property="PlaceholderColor" Value="{AppThemeBinding Light={StaticResource Gray200}, Dark={StaticResource Gray500}}" />
<Setter Property="MinimumHeightRequest" Value="44"/>
<Setter Property="MinimumWidthRequest" Value="44"/>
<Setter Property="VisualStateManager.VisualStateGroups">
<VisualStateGroupList>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal"/>
<VisualState x:Name="Disabled"/>
</VisualStateGroup>
</VisualStateGroupList>
</Setter>
</Style>
`
Changed my primary, secondary and tertiary color in styles just in case it is automatically set to one of those
Tried to set a visual state for "Focused" in the code below under "VisualStateGroup"
I am creating a WPF project .I am trying to remove this default background [marked in orange] on mouse hover from the combobox drop down. Below is the code which I have trying. I have tried multiple solutions available at various posts but the background color does not seems to change.
Thanks a lot in advance for the help !!
<ComboBox HorizontalAlignment="Left" Margin="95,44,0,0" VerticalAlignment="Top" Width="208">
<ComboBox.Resources>
<SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}"
Color="Gray"/>
<Style TargetType="{x:Type ComboBoxItem}">
<Setter Property="Foreground" Value="Gray" />
<Setter Property="FocusVisualStyle" Value="{x:Null}"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="OverridesDefaultStyle" Value="True"/>
<Style.Triggers>
<Trigger Property="IsFocused" Value="True">
<Setter Property="Background" Value="#FFCDCDCD"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="Red"/>
</Trigger>
</Style.Triggers>
</Style>
</ComboBox.Resources>
</<ComboBox>
I am writing a small WPF application using MVVM pattern.
I set some style resources for buttons into my main window and I would like them to apply to the buttons into the views. The problem is that some of the buttons are having a style with trigger. So I would like to inherit this style from the generic one
here is my main window code:
<Window.Resources>
<DataTemplate DataType="{x:Type vm:HomeViewModel}">
<views:HomeView/>
</DataTemplate>
<DataTemplate DataType="{x:Type vm:DetailReportViewModel}">
<views:DetailReportView/>
</DataTemplate>
<DataTemplate DataType="{x:Type vm:TransferViewModel}">
<views:TransferView/>
</DataTemplate>
<Style TargetType="{x:Type Button}">
<Setter Property="Margin" Value="5"/>
<Setter Property="MinWidth" Value="30"/>
<Setter Property="Foreground" Value="Red"/>
</Style>
<Style TargetType="{x:Type ComboBox}">
<Setter Property="Margin" Value="5"/>
</Style>
</Window.Resources>
here is the button XAML into my view/usercontrol
<Button Content="Delete" Command="{Binding DeleteReportCommand}">
<Button.Style>
<Style TargetType="{x:Type Button}">
<Style.Triggers>
<DataTrigger Binding="{Binding Mode}">
<DataTrigger.Value>
<vm:Mode>Add</vm:Mode>
</DataTrigger.Value>
<Setter Property="Visibility" Value="Collapsed"/>
</DataTrigger>
<DataTrigger Binding="{Binding Mode}">
<DataTrigger.Value>
<vm:Mode>Edit</vm:Mode>
</DataTrigger.Value>
<Setter Property="Visibility" Value="Visible"/>
</DataTrigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>
I tried to used BasedOn="{StaticResource {x:Type Button} to inherit but it doesn't seems to work (see img)
I tried with a key name but static resource won't find the key name as it's not on the same view. And BasedOn is not accepting Dynamic resource.
Anything I am missing?
Thank you
You can put all the custom styles in a separate resource dictionary file and you can add it in usercontrol.resources.
Refer this: http://www.codeproject.com/Articles/35346/Using-a-Resource-Dictionary-in-WPF
Or you can put all those in app.xaml (Application.Resources).
Refer this: http://msdn.microsoft.com/en-us/library/system.windows.resourcedictionary.aspx
I just want to ask for your opinion on how to achieve the 'Slide to Unlock' feature from iPhone using Windows Presentation Foundation.
I already came across to this article: iPhone slide to unlock progress bar (part 1), and wondering if you can give me some other resources for a good head start. Thank you.
I would retemplate a Slider, as this is the closest control, functionality-wise.
You should catch the event of Value_Changed, and if Value == Maximum then the slider is "opened".
Retemplating the control would make it look like your "unlock control" with ease. I'll paste later an example.
-- EDIT --
Have free time at work, so I started it for you.
The usage is as follows:
<Grid x:Name="LayoutRoot">
<Slider Margin="185,193,145,199" Style="{DynamicResource SliderStyle1}"/>
</Grid>
and the ResourceDictionary:
<ResourceDictionary
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d">
<LinearGradientBrush x:Key="MouseOverBrush" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#AAA" Offset="1.0"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="LightBrush" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="1.0"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="NormalBorderBrush" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#CCC" Offset="0.0"/>
<GradientStop Color="#444" Offset="1.0"/>
</LinearGradientBrush>
<Style x:Key="SimpleScrollRepeatButtonStyle" d:IsControlPart="True" TargetType="{x:Type RepeatButton}">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="BorderBrush" Value="Transparent"/>
<Setter Property="IsTabStop" Value="false"/>
<Setter Property="Focusable" Value="false"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type RepeatButton}">
<Grid>
<Rectangle Fill="{TemplateBinding Background}" Stroke="{TemplateBinding BorderBrush}" StrokeThickness="{TemplateBinding BorderThickness}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="ThumbStyle1" d:IsControlPart="True" TargetType="{x:Type Thumb}">
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Thumb}">
<Grid Width="54">
<Ellipse x:Name="Ellipse" />
<Border CornerRadius="10" >
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFFBFBFB" Offset="0.075"/>
<GradientStop Color="Gainsboro" Offset="0.491"/>
<GradientStop Color="#FFCECECE" Offset="0.509"/>
<GradientStop Color="#FFA6A6A6" Offset="0.943"/>
</LinearGradientBrush>
</Border.Background>
</Border>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Fill" Value="{StaticResource MouseOverBrush}" TargetName="Ellipse"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Fill" Value="{StaticResource DisabledBackgroundBrush}" TargetName="Ellipse"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="SliderStyle1" TargetType="{x:Type Slider}">
<Setter Property="Background" Value="{StaticResource LightBrush}"/>
<Setter Property="BorderBrush" Value="{StaticResource NormalBorderBrush}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Slider}">
<Border CornerRadius="14" Padding="4">
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FF252525" Offset="0"/>
<GradientStop Color="#FF5C5C5C" Offset="1"/>
</LinearGradientBrush>
</Border.Background>
<Grid x:Name="GridRoot">
<TextBlock Text="Slide to unlock" HorizontalAlignment="Center" VerticalAlignment="Center" />
<!-- TickBar shows the ticks for Slider -->
<!-- The Track lays out the repeat buttons and thumb -->
<Track x:Name="PART_Track" Height="Auto">
<Track.Thumb>
<Thumb Style="{StaticResource ThumbStyle1}"/>
</Track.Thumb>
<Track.IncreaseRepeatButton>
<RepeatButton Style="{StaticResource SimpleScrollRepeatButtonStyle}" Command="Slider.IncreaseLarge" Background="Transparent"/>
</Track.IncreaseRepeatButton>
<Track.DecreaseRepeatButton>
<RepeatButton Style="{StaticResource SimpleScrollRepeatButtonStyle}" Command="Slider.DecreaseLarge" d:IsHidden="True"/>
</Track.DecreaseRepeatButton>
</Track>
</Grid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="TickPlacement" Value="TopLeft"/>
<Trigger Property="TickPlacement" Value="BottomRight"/>
<Trigger Property="TickPlacement" Value="Both"/>
<Trigger Property="IsEnabled" Value="false"/>
<!-- Use a rotation to create a Vertical Slider form the default Horizontal -->
<Trigger Property="Orientation" Value="Vertical">
<Setter Property="LayoutTransform" TargetName="GridRoot">
<Setter.Value>
<RotateTransform Angle="-90"/>
</Setter.Value>
</Setter>
<!-- Track rotates itself based on orientation so need to force it back -->
<Setter TargetName="PART_Track" Property="Orientation" Value="Horizontal"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ResourceDictionary>
Note that this is a very good start, but it's not everything.
I would also define a custom control that derives from slider and that uses this style automatically. Also I would expose a SlideUnlocked event when the user slides all the way right.
To finish it all i would also add an animation that moves the Thumb back left in case the user has dragged it right, but not all the way (to imitate iPhone's UX exactly.)
Good luck, and ask away if you don't know how to implement any of the stages i suggested.
WPF slider has got one "-" and it is value ,
always when you move it, value is for example in decimal 1,122213174 so one "-".
But another way to create slider is in Windows forms.
Create trackBar1 ,and maximum = 100 points.
This is for Windows forms application:
On trackBar1_mouse_up:
if(trackBar1.Value < 100)
{
//Animation - slide back dynamicaly.
for(int i=0;i<=trackBar1.Value;i++){
int secondVal=trackBar1.Value-i;
trackBar1.Value=secondVal;
System.Threading.Thread.Sleep(15);
}
}
if(trackBar1.Value==100)
{
//sets enabled to false, then after load cannot move it.
trackBar1.Enabled=false;
MessageBox.Show("Done!");
}
And this for WPF Slider: (on PreviewMouseUp)
if (Convert.ToInt16(slider1.Value) < 99)
{
//Animation - slide back dynamicaly.
for (int i = 0; i < Convert.ToInt16(slider1.Value); i++)
{
int secondVal = Convert.ToInt32(slider1.Value) - i;
slider1.Value = secondVal;
System.Threading.Thread.Sleep(10);
if (secondVal < 2)
{
slider1.Value = 0;
}
}
}
if (Convert.ToInt16(slider1.Value) > 99)
{
//sets enabled to false, then after load cannot move it.
slider1.IsEnabled = false;
slider1.Value = 100;
MessageBox.Show("Done!");
}
Good luck! I hope it helps, try it with slider, but I think application will crash.