SilverLight企业应用框架设计【二】框架画面

框架画面分为上中下三层

由下面一个Grid控件完成布局

<Grid x:Name="LayoutRoot">
<Grid.RowDefinitions>
<RowDefinition Height="60"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="22"></RowDefinition>
</Grid.RowDefinitions>
</Grid>

上层为顶部菜单区域

中层为子菜单和业务画面部分

下层为状态栏和版权信息区域



下面我们分别看一下这三个部分的生成逻辑

一：顶部菜单区域

XAML代码如下：

<StackPanel x:Name="TopMenuS" Orientation="Horizontal" Background="{StaticResource HeadBG}">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="10"></ColumnDefinition>
<ColumnDefinition Width="142"></ColumnDefinition>
<ColumnDefinition Width="10"></ColumnDefinition>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="3"></RowDefinition>
<RowDefinition Height="18"></RowDefinition>
<RowDefinition Height="18"></RowDefinition>
<RowDefinition Height="18"></RowDefinition>
<RowDefinition Height="3"></RowDefinition>
</Grid.RowDefinitions>
<TextBlock x:Name="helloBlock" Grid.Column="1" Grid.Row="1" Text="xxxx通信" />
<TextBlock x:Name="UserName" Text="Administrator" Grid.Column="1" Grid.Row="2" />
<TextBlock Text="欢迎使用 xxx监控系统" Grid.Column="1" Grid.Row="3" />
</Grid>
<Rectangle Width="1" Fill="{StaticResource HeadSplitor}"></Rectangle>
<StackPanel>
<Button Style="{StaticResource ToolBtnStyle}" Content="全部关闭" Click="CloseAllClick"></Button>
<Button Style="{StaticResource ToolBtnStyle}" Content="关闭当前" Click="CloseCurClick"></Button>
<Button Style="{StaticResource ToolBtnStyle}" Content="关闭其他" Click="CloseOtherClick"></Button>
</StackPanel>
<Rectangle Width="1" Fill="{StaticResource HeadSplitor}"></Rectangle>
<StackPanel>
<Button Style="{StaticResource ToolBtnStyle}" Content="修改密码" Click="ChangePSWBtnClick"></Button>
<Button Style="{StaticResource ToolBtnStyle}" Content="退出系统" Click="LoginOutBtnClick"></Button>
<Button Style="{StaticResource ToolBtnStyle}" Content="重新登录" Click="ReLoginBtnClick"></Button>
</StackPanel>
<Rectangle Width="1" Fill="{StaticResource HeadSplitor}"></Rectangle>
</StackPanel>

顶部菜单分为三部分

从左向右依次是


顶部菜单的容器是一个StackPanel

此容器有一个渐变的背景色，样式代码如下

<!--头部渐变背景-->
<LinearGradientBrush x:Key="HeadBG" StartPoint="0.5 0" EndPoint="0.5 1">
<GradientStop Offset="0" Color="#FAFAFA"></GradientStop>
<GradientStop Offset="0.5" Color="#D6D6D6"></GradientStop>
</LinearGradientBrush>

此容器每个部分都有一个Rectangle来分割

此Rectangle也有个渐变的背景，代码如下

<!--头部分隔条渐变背景-->
<LinearGradientBrush x:Key="HeadSplitor" StartPoint="0.5 0" EndPoint="0.5 1">
<GradientStop Offset="0" Color="#FAFAFA"></GradientStop>
<GradientStop Offset="1" Color="#000000"></GradientStop>
</LinearGradientBrush>

常用按钮的样式如下：

<!--头部的 三分栏  工具按钮样式-->
<Style x:Key="ToolBtnStyle" TargetType="Button">
<Style.Setters>
<Setter Property="Width" Value="90"></Setter>
<Setter Property="Height" Value="20"></Setter>
<Setter Property="Cursor" Value="Hand"></Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Grid x:Name="Container">
<vsm:VisualStateManager.VisualStateGroups>
<vsm:VisualStateGroup x:Name="CommonStates">
<vsm:VisualState x:Name="MouseOver">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="fillColor" Storyboard.TargetProperty="Opacity" Duration="0" To="1"/>
</Storyboard>
</vsm:VisualState>
<vsm:VisualState x:Name="Normal" />
</vsm:VisualStateGroup>
</vsm:VisualStateManager.VisualStateGroups>
<Rectangle x:Name="fillColor" Opacity="0" Fill="#B5B5B5"  IsHitTestVisible="False" RadiusX="1" RadiusY="1"/>
<ContentPresenter
x:Name="contentPresenter"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style.Setters>
</Style>

动态创建顶部菜单的代码如下

（大家先不要深究数据是怎么来的，在以后的章节咱们会讲到数据交互的细节）

var tops = Common.ViewUtility.AllMenu
.Where(m => m.ParentId == Guid.Empty)
.OrderByDescending(m => m.MenuOrder);
foreach (var m in tops)
{
var topM = new HeadBtn();
topM.DataContext = m;
topM.MouseLeftButtonUp += new MouseButtonEventHandler(topM_MouseLeftButtonUp);
TopMenuS.Children.Insert(2,topM);
}

这里创建的HeadBtn是一个自定义的控件

（每个顶部菜单就是一个控件的实例）

该自定义控件XAML代码如下：

<StackPanel Orientation="Horizontal" Cursor="Hand">
<Grid x:Name="btn" Width="90" Height="60">
<Grid.RowDefinitions>
<RowDefinition></RowDefinition>
<RowDefinition Height="20"></RowDefinition>
</Grid.RowDefinitions>
<Image Source="../Images/module2.png" Height="30"></Image>
<TextBlock Text="{Binding MenuName}" Grid.Row="1" FontSize="12"
VerticalAlignment="Center" HorizontalAlignment="Center" ></TextBlock>
</Grid>
<Rectangle Width="1" Fill="{StaticResource HeadSplitor}"></Rectangle>
</StackPanel>

注意，这里每个顶部菜单的ICO图标不是动态的，朋友们，想让他变成动态的就自己动手吧

为了实现美观的效果

我为这个自定义控件定义了鼠标的滑入滑出事件

private void UserControl_MouseEnter(object sender, MouseEventArgs e)
{
var color = Color.FromArgb(255,180, 180, 180);
btn.Background = new SolidColorBrush(color);
}
private void UserControl_MouseLeave(object sender, MouseEventArgs e)
{
btn.Background = new SolidColorBrush(Colors.Transparent);
}

这些颜色的值，本应该作为资源放在样式文件中，我这里也没有做处理

二：底部状态条区域

此处比较简单

代码如下：

<StackPanel Width="Auto" Grid.Row="2"
Background="#B5B5B5" Orientation="Horizontal" FlowDirection="RightToLeft">
<TextBlock VerticalAlignment="Center" Text="V1.0.0 Copy Right © All Rights Reserved"/>
<TextBlock VerticalAlignment="Center"  Text="xxxx"/>
</StackPanel>

1.我没有做状态信息的内容

2.版本信息应该通过Assambly获取

三：中部区域

XAML代码如下

<Border  Grid.Row="1" BorderBrush="#B5B5B5" BorderThickness="0 1 0 0">
<Grid  Background="#E8E8E8" Margin="0 1 0 0" Name="CenterGrid">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="160"></ColumnDefinition>
<ColumnDefinition Width="*"></ColumnDefinition>
</Grid.ColumnDefinitions>
<StackPanel>
<sdk:Label  Height="26"  Background="#b5b5b5"  Margin="0 6 0 6"
FontWeight="Bold" FontSize="12" x:Name="lblMenuText"
HorizontalAlignment="Center"  Width="160"  />
<ListBox  SelectionChanged="left_panel_SelectionChanged"
ItemContainerStyle="{StaticResource ListBoxItemStyleNew}"
Grid.Column="0" x:Name="left_panel" Background="#E8E8E8" BorderThickness="0">
<ListBox.ItemTemplate>
<DataTemplate>
<ContentPresenter Content="{Binding MenuName}"></ContentPresenter>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</StackPanel>
<sdk:TabControl x:Name="tbControl" SelectionChanged="tbControl_SelectionChanged" Grid.Column="1" Margin="0 6 0 0">
</sdk:TabControl>
</Grid>
</Border>

其中Label控件显示的为顶部菜单的标题，标志着当前选中的是哪个顶部菜单

ListBox为子菜单控件

TabControl为业务画面区域

四：子菜单区域

子菜单样式相对复杂些

样式代码如下

<!--子菜单样式-->
<Style TargetType="ListBoxItem" x:Key="ListBoxItemStyleNew" >
<Setter Property="Padding" Value="3" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="VerticalContentAlignment" Value="Center" />
<Setter Property="Background" Value="Transparent" />
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="TabNavigation" Value="Local" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListBoxItem">
<Grid Background="{TemplateBinding Background}">
<vsm:VisualStateManager.VisualStateGroups>
<vsm:VisualStateGroup x:Name="CommonStates">
<vsm:VisualState x:Name="Normal" />
<vsm:VisualState x:Name="MouseOver">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="fillColor" Storyboard.TargetProperty="Opacity" Duration="0" To=".35"/>
</Storyboard>
</vsm:VisualState>
<vsm:VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="contentPresenter" Storyboard.TargetProperty="Opacity" Duration="0" To=".55" />
</Storyboard>
</vsm:VisualState>
</vsm:VisualStateGroup>
<vsm:VisualStateGroup x:Name="SelectionStates">
<vsm:VisualState x:Name="Unselected" />
<vsm:VisualState x:Name="Selected">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="fillColor2" Storyboard.TargetProperty="Opacity" Duration="0" To=".75"/>
</Storyboard>
</vsm:VisualState>
</vsm:VisualStateGroup>
<vsm:VisualStateGroup x:Name="FocusStates">
<vsm:VisualState x:Name="Focused">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="FocusVisualElement" Storyboard.TargetProperty="Visibility" Duration="0">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</vsm:VisualState>
<vsm:VisualState x:Name="Unfocused"/>
</vsm:VisualStateGroup>
</vsm:VisualStateManager.VisualStateGroups>
<Rectangle x:Name="fillColor" Opacity="0" Fill="#B5B5B5"  IsHitTestVisible="False" RadiusX="1" RadiusY="1"/>
<Rectangle x:Name="fillColor2" Opacity="0" Fill="#FFBADDE9" IsHitTestVisible="False" RadiusX="1" RadiusY="1"/>
<ContentPresenter
x:Name="contentPresenter"
Cursor="Hand"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"/>
<Rectangle x:Name="FocusVisualElement" Stroke="#FF6DBDD1" StrokeThickness="1" Visibility="Collapsed" RadiusX="1" RadiusY="1" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

这些样式主要是为了实现如下效果





子菜单数据绑定非常简单

（顶部菜单的单击事件将绑定子菜单）

代码如下：

void topM_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
var tBTN = sender as HeadBtn;
var tMenu = tBTN.DataContext as MenuM;
lblMenuText.Content = tMenu.MenuName;
var subs = Common.ViewUtility.AllMenu
.Where(m => m.ParentId == tMenu.Id)
.OrderBy(m => m.MenuOrder);
left_panel.ItemsSource = subs;
}

五：业务画面区域

业务画面的容器为TabControl

每个TabItem将承载一个业务画面

主要是为TabItem增加关闭按钮

XAML代码如下：

<sdk:TabItem.HeaderTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" Width="auto" Margin="0 0 -2 -2">
<TextBlock  x:Name="tboxheader" Text="{Binding}"/>
<Button Cursor="Hand" Click="CloseBTN_Click" Style="{StaticResource ListViewHeadBtnStyle}" Margin="3,-3,-6,0"  Content="X" >
</Button>
</StackPanel>
</DataTemplate>
</sdk:TabItem.HeaderTemplate>
</sdk:TabItem>

这个关闭按钮的样式比较特殊

<!--标签按钮-->
<Style x:Key="ListViewHeadBtnStyle" TargetType="Button">
<Style.Setters>
<Setter Property="Width" Value="20"></Setter>
<Setter Property="Height" Value="20"></Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Grid  x:Name="Container">
<vsm:VisualStateManager.VisualStateGroups>
<vsm:VisualStateGroup x:Name="CommonStates">
<vsm:VisualState x:Name="Normal" />
<vsm:VisualState x:Name="MouseOver">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="fillColor" Storyboard.TargetProperty="Opacity" Duration="0" To=".35"/>
</Storyboard>
</vsm:VisualState>
</vsm:VisualStateGroup>
</vsm:VisualStateManager.VisualStateGroups>
<Rectangle x:Name="fillColor" Opacity="0" Fill="#B5B5B5"  IsHitTestVisible="False" RadiusX="1" RadiusY="1"/>
<ContentPresenter
x:Name="contentPresenter"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style.Setters>
</Style>

关闭按钮样式主要为了实现如下效果

（鼠标滑上，关闭按钮背景变灰色）





按钮的单击事件如下

private void CloseBTN_Click(object sender, RoutedEventArgs e)
{
var tc = this.Parent as TabControl;
tc.Items.Remove(this);
}