升级了迅雷7，感觉视觉上的确给人了耳目一新的感觉。我照葫芦画瓢吧仿造了一个迅雷选择下载的下拉框
效果图如下：
它的结构是这样的：
点击查看XAML <Grid Height="113" Width="640">
<Grid Margin="72,27,193,0" Height="29" VerticalAlignment="Top">
<Border DataContext="{StaticResource plist}"
x:Name="control1" BorderThickness="3" Width="369" Height="28"
HorizontalAlignment="Left" VerticalAlignment="Top" CornerRadius="5"
MouseDown="control1_MouseDown" >
<Border.BorderBrush>
<RadialGradientBrush>
<GradientStop Color="#FFF2C7D7" Offset="0" />
<GradientStop Color="#87EA5457" Offset="1" />
</RadialGradientBrush>
</Border.BorderBrush>
<Grid >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="18*" />
<ColumnDefinition Width="345*" />
</Grid.ColumnDefinitions>
<StackPanel HorizontalAlignment="Left" Orientation="Horizontal" VerticalAlignment="Top" Grid.ColumnSpan="2">
<TextBox x:Name="textBox1" Width="211" HorizontalAlignment="Left" BorderThickness="0" Margin="6,1,0,2" Padding="0" Text="{Binding Name}" />
<local:PopupNonTopmost Topmost="False" x:Name="Popup" Placement="Bottom" AllowsTransparency="True" HorizontalOffset="-3"
VerticalOffset="2" Focusable="False" PopupAnimation="Fade">
<Border BorderThickness="3,0,3,3" Background="White" Height="100" HorizontalAlignment="Left" x:Name="border3" VerticalAlignment="Top" Width="369" RenderTransformOrigin="0.5,0.5" CornerRadius="2">
<Border.BorderBrush>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFFD8C8C" Offset="0.014"/>
<GradientStop Color="#FFFBB1B1" Offset="0.74"/>
</LinearGradientBrush>
</Border.BorderBrush>
<ListBox ItemTemplate="{StaticResource ListBoxControlTemplate1}"
x:Name="listBox" ItemsSource="{Binding}" BorderThickness="0" IsSynchronizedWithCurrentItem="True">
</ListBox>
</Border>
</local:PopupNonTopmost>
<TextBlock Height="18" x:Name="textBlock1" Text="剩余70.15GB" VerticalAlignment="Center" Width="81"><TextBlock.Foreground><LinearGradientBrush EndPoint="1,0.5" StartPoint="0,0.5"><GradientStop Color="#FF4984B7" Offset="0" /><GradientStop Color="#FF008EFF" Offset="1" /></LinearGradientBrush></TextBlock.Foreground></TextBlock>
<Border Height="23" Width="2" BorderThickness="1">
<Border.BorderBrush>
<LinearGradientBrush EndPoint="1,0.5" StartPoint="0,0.5">
<GradientStop Color="#FFD7C9C9" Offset="0" />
<GradientStop Color="White" Offset="1" />
<GradientStop Color="#FFFC8BCD" Offset="0.5" />
</LinearGradientBrush>
</Border.BorderBrush>
</Border>
<Border BorderThickness="0" Height="23" x:Name="border1" VerticalAlignment="Top" Width="31" MouseDown="border1_MouseDown">
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFE8D4D9" Offset="0" />
<GradientStop Color="#FFF67BAE" Offset="1" />
</LinearGradientBrush>
</Border.Background>
<TextBlock Text="▲?" HorizontalAlignment="Center" Foreground="#FFEC82C1" Height="16">
<TextBlock.LayoutTransform>
<ScaleTransform ScaleX="-1" ScaleY="-1"/>
</TextBlock.LayoutTransform>
</TextBlock>
</Border>
<Border Height="23" Width="2" BorderThickness="1">
<Border.BorderBrush>
<LinearGradientBrush EndPoint="1,0.5" StartPoint="0,0.5">
<GradientStop Color="#FFD7C9C9" Offset="0" />
<GradientStop Color="White" Offset="1" />
<GradientStop Color="#FFFC8BCD" Offset="0.5" />
</LinearGradientBrush>
</Border.BorderBrush>
</Border>
<Border BorderThickness="0" Height="23" x:Name="border2" VerticalAlignment="Top" Width="31">
<TextBlock HorizontalAlignment="Center" Text="选择" FontSize="12" Foreground="RosyBrown" />
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFE8D4D9" Offset="0" />
<GradientStop Color="#FFF67BAE" Offset="1" />
</LinearGradientBrush>
</Border.Background>
</Border>
</StackPanel>
</Grid>
</Border>
</Grid>
代码不多也很简单其中有一个local:PopupNonTopmost ，这个自定义控件是继承了Popup控件而得到的，因为Popup控件默认只能是Top Most的所以有时候会遮挡到其它窗体
点击查看PopupNonTopmost实现代码 public class PopupNonTopmost : Popup
{
public static DependencyProperty TopmostProperty = Window.TopmostProperty.AddOwner(
typeof(PopupNonTopmost),
new FrameworkPropertyMetadata(false, OnTopmostChanged));
public bool Topmost
{
get { return (bool)GetValue(TopmostProperty); }
set { SetValue(TopmostProperty, value); }
}
private static void OnTopmostChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
{
(obj as PopupNonTopmost).UpdateWindow();
}
protected override void OnOpened(EventArgs e)
{
UpdateWindow();
}
private void UpdateWindow()
{
var hwnd = ((HwndSource)PresentationSource.FromVisual(this.Child)).Handle;
RECT rect;
if (GetWindowRect(hwnd, out rect))
{
SetWindowPos(hwnd, Topmost ? -1 : -2, rect.Left, rect.Top, (int)this.Width, (int)this.Height, 0);
}
}
#region P/Invoke imports & definitions
[StructLayout(LayoutKind.Sequential)]
public struct RECT
{
public int Left;
public int Top;
public int Right;
public int Bottom;
}
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool GetWindowRect(IntPtr hWnd, out RECT lpRect);
[DllImport("user32", EntryPoint = "SetWindowPos")]
private static extern int SetWindowPos(IntPtr hWnd, int hwndInsertAfter, int x, int y, int cx, int cy, int wFlags);
#endregion
}
