How to create Custom Window Style in WPF [Drag Window]

Question

Hi To All,
How to create Custom Window Style in WPF with Drag-able window

Answer 1

For creating custom window styles that can be dragged and dropped, you could try to refer to the following code.

The code of xaml:

   <Window x:Class="CustomWindowStyleofDragWindow.MainWindow"  
            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:CustomWindowStyleofDragWindow"  
            mc:Ignorable="d" WindowStyle="None" AllowsTransparency="True" Background="Transparent"  >  
        <Window.Template>  
            <ControlTemplate TargetType="Window">  
                <Border BorderBrush="Transparent"  BorderThickness="5" CornerRadius="10" Background="Transparent" >  
                    <Border BorderBrush="Red" BorderThickness="4" CornerRadius="10" Name="MainBorder" Background="GreenYellow" >  
                        <Border.Effect>  
                            <DropShadowEffect BlurRadius="10" Direction="-90" RenderingBias="Quality" ShadowDepth="2" Color="Red"/>  
                        </Border.Effect>  
                          
                        <Grid Margin="10">  
                            <Grid.RowDefinitions>  
                                <RowDefinition Height="30"/>  
                                <RowDefinition Height="*"/>  
                            </Grid.RowDefinitions>  
                            <Grid x:Name="sp" Grid.Row="0" Loaded="header_Loaded" Background="AliceBlue">  
                                <Grid.ColumnDefinitions>  
                                    <ColumnDefinition Width="*"/>  
                                    <ColumnDefinition Width="120"/>  
                                </Grid.ColumnDefinitions>  
                                <TextBlock  x:Name="header" Background="AliceBlue"  >  header....</TextBlock>  
                                <Button  Grid.Column="1" HorizontalAlignment="Left"  Content="-" Height="35"   Name="button1" Width="62" Click="button1_Click" />  
                                <Button Grid.Column="1" HorizontalAlignment="Right" Margin="0,0,5,0" Content="*" Height="35"  Name="button3" Width="49" Click="button3_Click" />  
                            </Grid>  
                            <ContentPresenter Grid.Row="1"/>  
                        </Grid>  
                    </Border>  
                </Border>  
            </ControlTemplate>  
        </Window.Template>  
        <Grid Background="LightSkyBlue">  
            <TextBlock Text="content..."/>  
        </Grid>  
    </Window>  

The code of xaml.cs:

using System.Windows;  
using System.Windows.Controls;  
  
namespace CustomWindowStyleofDragWindow  
{  
  public partial class MainWindow : Window  
  {  
    public MainWindow()  
    {  
      InitializeComponent();  
       
    }  
    private void header_Loaded(object sender, RoutedEventArgs e)  
    {  
      InitHeader(sender as Grid);  
    }  
    private void button1_Click(object sender, RoutedEventArgs e)  
    {  
      this.WindowState = WindowState.Minimized;  
    }  
    private void button3_Click(object sender, RoutedEventArgs e)  
    {  
      this.Close();  
    }  
    private void InitHeader(Grid header)  
    {  
      var restoreIfMove = false;  
  
      header.MouseLeftButtonDown += (s, e) =>  
      {  
        if (e.ClickCount == 2)  
        {  
          if ((ResizeMode == ResizeMode.CanResize) ||  
              (ResizeMode == ResizeMode.CanResizeWithGrip))  
          {  
            SwitchState();  
          }  
        }  
        else  
        {  
          if (WindowState == WindowState.Maximized)  
          {  
            restoreIfMove = true;  
          }  
  
          DragMove();  
        }  
      };  
      header.MouseLeftButtonUp += (s, e) =>  
      {  
        restoreIfMove = false;  
      };  
      header.MouseMove += (s, e) =>  
      {  
        if (restoreIfMove)  
        {  
          restoreIfMove = false;  
          var mouseX = e.GetPosition(this).X;  
          var width = RestoreBounds.Width;  
          var x = mouseX - width / 2;  
  
          if (x < 0)  
          {  
            x = 0;  
          }  
          else  
          if (x + width > SystemParameters.PrimaryScreenWidth)  
          {  
            x = SystemParameters.PrimaryScreenWidth - width;  
          }  
  
          WindowState = WindowState.Normal;  
          Left = x;  
          Top = 0;  
          DragMove();  
        }  
      };  
    }  
    private void SwitchState()  
    {  
      switch (WindowState)  
      {  
        case WindowState.Normal:  
          {  
            WindowState = WindowState.Maximized;  
            break;  
          }  
        case WindowState.Maximized:  
          {  
            WindowState = WindowState.Normal;  
            break;  
          }  
      }  
    }  
  }  
}  

The picture of result:

---

If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Answer 2

Please can you tell me how to create Round Corner Window of Custom Window..
Please find below attached image
i am facing this issue related to Grid Corner is not rounded.......