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Is there a way in WPF where I can remove the main window's border, yet allow that window to be resized (without grip)?
I realized there's a way to do this scenario by setting resize mode to CanResizeWithGrip. However, I want to be able to do it with the resize mode set to CanResize.
I tried setting the following:
ResizeMode="CanResize"
WindowStyle="None"
AllowsTransparency="True"
However, by setting AllowsTransparency, it removes the ability to resize without the grip. Any ideas how I can pull this off?
I also should note that I can't set AllowsTransparency to true anyway, because I am using a winformshost control in my window, which is not shown when AllowsTransparency is true.
216
Window is the root control that must be used to hold/host other controls (e.g. Button) as container. Page is a control which can be hosted in other container controls like NavigationWindow or Frame. Page control has its own goal to serve like other controls (e.g. Button). Page is to create browser like applications.
You can put the content of the window into a UserControl. Your window then only has a content-control and a button to change the content. On a click on the button you can reassign the content-property of the content-control.
When a Window is created at run-time using the Window object, it is not visible by default. To make it visible, we can use Show or ShowDialog method. Show method of Window class is responsible for displaying a window.
I know this is an old question, but I just wanted to put up a working sample for newcomers.
Xaml Window:
<Window x:Class="CustomWindowDemo.DemoCustomWindow"
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"
xmlns:local="clr-namespace:CustomWindowDemo"
mc:Ignorable="d"
Title="DemoCustomWindow" Height="300" Width="300" Background="{x:Null}" AllowsTransparency="True" WindowStyle="None">
<Window.Resources>
<Style x:Key="BorderThumb" TargetType="Thumb">
<Setter Property="SnapsToDevicePixels" Value="true" />
<Setter Property="OverridesDefaultStyle" Value="true" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Thumb">
<Rectangle MinWidth="4" MinHeight="4" StrokeThickness="0">
<Rectangle.Fill>
<SolidColorBrush Color="{DynamicResource {x:Static SystemColors.HighlightColorKey}}" Opacity="0.05"/>
</Rectangle.Fill>
</Rectangle>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
<Border BorderBrush="#55FFFFFF" BorderThickness="1" CornerRadius="5">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Border MouseMove="Header_MouseMove" DockPanel.Dock="Top" Height="32" Grid.Row="1" Grid.Column="1">
<Border.Background>
<LinearGradientBrush StartPoint="0,0" EndPoint="0,3">
<GradientStop Color="#3BB2EA" Offset="0" />
<GradientStop Color="#EFF7FA" Offset="0.3" />
</LinearGradientBrush>
</Border.Background>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<TextBlock VerticalAlignment="Center" HorizontalAlignment="Left" Margin="10,0,0,0" Text="{Binding Path=Title, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type Window}}}"/>
<Button x:Name="btn_Minimize" Background="{x:Null}" BorderBrush="{x:Null}" Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" BorderThickness="0" Click="btn_Minimize_Click" Grid.Column="1">
<Image Source="Resources/Ahmadhania-Spherical-Minimize.ico"/>
</Button>
<Button x:Name="btn_Maximize" Background="{x:Null}" BorderBrush="{x:Null}" Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" BorderThickness="0" Grid.Column="2" Click="btn_Maximize_Click">
<Image Source="Resources/1412181205_61002.ico"/>
</Button>
<Button x:Name="btn_Close" Background="{x:Null}" BorderBrush="{x:Null}" Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" BorderThickness="0" Grid.Column="3" Click="btn_Close_Click">
<Image Source="Resources/Ahmadhania-Spherical-Close(1).ico"/>
</Button>
</Grid>
</Border>
<Thumb x:Name="ThumbBottom" DragDelta="ThumbBottom_DragDelta" HorizontalAlignment="Stretch" Cursor="SizeNS" Grid.Column="0" Background="{x:Null}" Margin="3,0" Grid.ColumnSpan="3" Grid.Row="3" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}"/>
<Thumb x:Name="ThumbTop" DragDelta="ThumbTop_DragDelta" HorizontalAlignment="Stretch" Cursor="SizeNS" Grid.Column="0" Background="{x:Null}" Margin="3,0" Grid.ColumnSpan="3" Height="4" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}"/>
<Thumb x:Name="ThumbBottomRightCorner" DragDelta="ThumbBottomRightCorner_DragDelta" HorizontalAlignment="Right" Cursor="SizeNWSE" Grid.Row="3" Grid.Column="3" Background="{x:Null}" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}"/>
<Thumb x:Name="ThumbTopRightCorner" DragDelta="ThumbTopRightCorner_DragDelta" HorizontalAlignment="Right" Cursor="SizeNESW" Grid.Row="0" Grid.Column="2" Background="{x:Null}" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}"/>
<Thumb x:Name="ThumbTopLeftCorner" DragDelta="ThumbTopLeftCorner_DragDelta" HorizontalAlignment="Left" Cursor="SizeNWSE" Grid.Row="0" Grid.Column="0" Background="{x:Null}" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}" />
<Thumb x:Name="ThumbBottomLeftCorner" DragDelta="ThumbBottomLeftCorner_DragDelta" HorizontalAlignment="Left" Cursor="SizeNESW" Grid.Row="3" Grid.Column="0" Background="{x:Null}" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}" />
<Thumb x:Name="ThumbRight" DragDelta="ThumbRight_DragDelta" Cursor="SizeWE" Grid.Column="2" Grid.RowSpan="4" Background="{x:Null}" Margin="0,3" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}"/>
<Thumb x:Name="ThumbLeft" DragDelta="ThumbLeft_DragDelta" Cursor="SizeWE" Grid.Column="0" Grid.RowSpan="4" HorizontalContentAlignment="Right" Background="{x:Null}" Margin="0,3" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}"/>
<Grid x:Name="Grid_Content" Background="#EFF7FA" Grid.Row="2" Grid.Column="1">
</Grid>
</Grid>
</Border>
</Window>
C# code behind:
using System.Windows.Interop;
using winforms = System.Windows.Forms;
namespace CustomWindowDemo
{
/// <summary>
/// Interaction logic for DemoCustomWindow.xaml
/// </summary>
public partial class DemoCustomWindow : Window
{
bool Maximized = false;
int NormalWidth = 0;
int NormalHeight = 0;
int NormalX = 0;
int NormalY = 0;
public DemoCustomWindow()
{
InitializeComponent();
}
#region Header & Resize
void Header_MouseMove(object sender, System.Windows.Input.MouseEventArgs e)
{
if (e.LeftButton == System.Windows.Input.MouseButtonState.Pressed)
this.DragMove();
}
void ThumbBottomRightCorner_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
{
if (this.Width + e.HorizontalChange > 10)
this.Width += e.HorizontalChange;
if (this.Height + e.VerticalChange > 10)
this.Height += e.VerticalChange;
}
void ThumbTopRightCorner_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
{
if (this.Width + e.HorizontalChange > 10)
this.Width += e.HorizontalChange;
if (this.Top + e.VerticalChange > 10)
{
this.Top += e.VerticalChange;
this.Height -= e.VerticalChange;
}
}
void ThumbTopLeftCorner_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
{
if (this.Left + e.HorizontalChange > 10)
{
this.Left += e.HorizontalChange;
this.Width -= e.HorizontalChange;
}
if (this.Top + e.VerticalChange > 10)
{
this.Top += e.VerticalChange;
this.Height -= e.VerticalChange;
}
}
void ThumbBottomLeftCorner_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
{
if (this.Left + e.HorizontalChange > 10)
{
this.Left += e.HorizontalChange;
this.Width -= e.HorizontalChange;
}
if (this.Height + e.VerticalChange > 10)
this.Height += e.VerticalChange;
}
void ThumbRight_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
{
if (this.Width + e.HorizontalChange > 10)
this.Width += e.HorizontalChange;
}
void ThumbLeft_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
{
if (this.Left + e.HorizontalChange > 10)
{
this.Left += e.HorizontalChange;
this.Width -= e.HorizontalChange;
}
}
void ThumbBottom_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
{
if (this.Height + e.VerticalChange > 10)
this.Height += e.VerticalChange;
}
void ThumbTop_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
{
if (this.Top + e.VerticalChange > 10)
{
this.Top += e.VerticalChange;
this.Height -= e.VerticalChange;
}
}
void btn_Minimize_Click(object sender, RoutedEventArgs e)
{
WindowState = WindowState.Minimized;
}
void btn_Maximize_Click(object sender, RoutedEventArgs e)
{
if (Maximized == true)
{
this.Width = NormalWidth;
this.Height = NormalHeight;
this.Left = NormalX;
this.Top = NormalY;
Maximized = false;
Thumbs();
}
else
{
NormalX = (int)this.Left;
NormalY = (int)this.Top;
NormalHeight = (int)this.Height;
NormalWidth = (int)this.Width;
this.Left = winforms.Screen.FromHandle(new WindowInteropHelper(this).Handle).WorkingArea.Left;
this.Top = winforms.Screen.FromHandle(new WindowInteropHelper(this).Handle).WorkingArea.Top;
this.Width = winforms.Screen.FromHandle(new WindowInteropHelper(this).Handle).WorkingArea.Width;
this.Height = winforms.Screen.FromHandle(new WindowInteropHelper(this).Handle).WorkingArea.Height;
Maximized = true;
Thumbs();
}
}
void btn_Close_Click(object sender, RoutedEventArgs e)
{
Close();
}
void Thumbs()
{
if (Maximized == true)
{
ThumbBottom.Visibility = Visibility.Collapsed;
ThumbLeft.Visibility = Visibility.Collapsed;
ThumbTop.Visibility = Visibility.Collapsed;
ThumbRight.Visibility = Visibility.Collapsed;
ThumbTopLeftCorner.Visibility = Visibility.Collapsed;
ThumbTopRightCorner.Visibility = Visibility.Collapsed;
ThumbBottomLeftCorner.Visibility = Visibility.Collapsed;
ThumbBottomRightCorner.Visibility = Visibility.Collapsed;
}
else
{
ThumbBottom.Visibility = Visibility.Visible;
ThumbLeft.Visibility = Visibility.Visible;
ThumbTop.Visibility = Visibility.Visible;
ThumbRight.Visibility = Visibility.Visible;
ThumbTopLeftCorner.Visibility = Visibility.Visible;
ThumbTopRightCorner.Visibility = Visibility.Visible;
ThumbBottomLeftCorner.Visibility = Visibility.Visible;
ThumbBottomRightCorner.Visibility = Visibility.Visible;
}
}
#endregion
}
}
This can happen if ResizeBorderThickness is set to 0.
It can be set to a positive value in XAML like this:
<WindowChrome>
<WindowChrome.ResizeBorderThickness>
<Thickness>1</Thickness>
</WindowChrome.ResizeBorderThickness>
</WindowChrome>
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