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Using WPF to implement multiple customer service functions of WeChat public accounts

PHPz
Release： 2017-03-05 14:16:29
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Original title: Using WPF to implement the multi-customer service function of WeChat public accounts

Introduction:

This is to use WPF as the front-end technology to achieve Desktop version of WeChat multi-customer service system. The project uses Prism as the front-end framework, uses the MVVM model to perfectly separate the UI and logic code, and uses the MEF IOC container integrated with MefBootstrapper to decouple each module object. Reasonable use of IEventAggregator to implement events and interactions. The article will give relevant implementation references when introducing the corresponding functions. Readers can refer to improvements and introduce them into their own projects.

Program running interface and function preview:

1. Login:

Function: Supports remembering users and user settings, and can choose to remember user passwords.

Implementation related:

Customize the login window and introduce Microsoft.Windows.Shell. You can refer to WPF Custom Chrome Library and MSDN WindowChrome Class for related custom window implementations.

To implement the minimize, maximize, and close button functions, please refer to the above example.

Login button, customize Style, rewrite Button's Template, the reference code is as follows: 

 <Style x:Key="LogginButton" TargetType="{x:Type Button}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type Button}">
                    <Grid  >
                        <Border   x:Name="Bd" Background="{TemplateBinding Background }" BorderBrush="#d3d3d3" BorderThickness="1">
                        </Border>
                        <ContentPresenter  x:Name="contentPresenter" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" RecognizesAccessKey="True"/>
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter TargetName="Bd" Property="BorderBrush" Value="#08bd14"/>
                            <Setter TargetName="Bd" Property="Opacity" Value="0.8"/>
                        </Trigger>
                        <Trigger Property="IsPressed" Value="True">
                            <Setter TargetName="Bd" Property="Background" Value="#f3f3f3"/>
                            <Setter TargetName="contentPresenter" Property="Margin" Value="2,2,0,0"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
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Remember the password, use XmlSerializer to serialize user information into the local xml configuration file, and load the file when the program starts xml configuration file. Usage MSDN , Quick reply

RichTextBox related implementation: all input of text, expressions, and pictures are implemented in the rich text box, so the input is processed for the TextChanged event Perform a series of treatments.

Text: No need to do any processing.

Emoticon: Enter the escape symbol of the emoticon in the text box, and then find the corresponding emoticon picture according to the escape symbol and replace it. InlineUIContainer

Gif dynamic graphics: Gif is not supported in WPF, so you need to write a custom user control to display gif expressions.

Reference Zhou Yinhui

[WPF Difficulties] Display dynamic GIF in WPF

Screenshot function: The source code was found online , is a screenshot of Winform. Made some minor modifications and introduced them into the project. Reference: C# screenshot control to achieve complete functions (4) - full version http://www.php.cn/

3. Customer list

The control is TabControl, which rewrites the Style of TabControl and the Style of TabItem

##

    <Style x:Key="CustomerTabStyle" TargetType="{x:Type TabControl}">
        <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
        <Setter Property="Padding" Value="4,4,4,4"/>
        <Setter Property="Background" Value="#F9F9F9"/>
        <Setter Property="HorizontalContentAlignment" Value="Center"/>
        <Setter Property="VerticalContentAlignment" Value="Center"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type TabControl}">
                    <Grid ClipToBounds="true" SnapsToDevicePixels="true" KeyboardNavigation.TabNavigation="Local">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition x:Name="ColumnDefinition0"/>
                            <ColumnDefinition x:Name="ColumnDefinition1" Width="0"/>
                        </Grid.ColumnDefinitions>
                        <Grid.RowDefinitions>
                            <RowDefinition x:Name="RowDefinition0" Height="Auto"/>
                            <RowDefinition x:Name="RowDefinition1" Height="*"/>
                        </Grid.RowDefinitions>
                        <TabPanel x:Name="HeaderPanel" Grid.Column="0" Background="#f6f6f6" IsItemsHost="true"  Grid.Row="0" KeyboardNavigation.TabIndex="1" Panel.ZIndex="1"/>
                        <Border x:Name="ContentPanel"  Background="{TemplateBinding Background}" Grid.Column="0" KeyboardNavigation.DirectionalNavigation="Contained" Grid.Row="1" KeyboardNavigation.TabIndex="2" KeyboardNavigation.TabNavigation="Local">
                            <ContentPresenter x:Name="PART_SelectedContentHost" ContentSource="SelectedContent"  SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
                        </Border>
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsEnabled" Value="false">
                            <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <Style x:Key="ConnectedTabItemStyle" TargetType="{x:Type TabItem}">
        <Setter Property="Foreground" Value="Black"/>
        <Setter Property="Padding" Value="20,8,20,0"/>
        <Setter Property="BorderBrush" Value="Transparent"/>
        <Setter Property="Background" Value="#b9c0cc"/>
        <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
        <Setter Property="VerticalContentAlignment" Value="Stretch"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type TabItem}">
                    <Grid SnapsToDevicePixels="true">
                        <Border x:Name="Bd" Background="#f6f6f6" Padding="{TemplateBinding Padding}">
                            <StackPanel>
                                <Path  Width="18" Height="18"  Stretch="Fill" Fill="{TemplateBinding Background}" Data="F1 M 38,19C 43.5417,19 45.9167,22.1667 45.1174,28.8134C 45.8315,29.2229 46.3125,29.9928 46.3125,30.875C 46.3125,31.9545 45.5923,32.8658 44.6061,33.1546C 44.1941,34.623 43.5543,35.9229 42.75,36.9628L 42.75,41.9583C 45.3889,42.4861 47.5,42.75 50.6667,44.3333C 53.8333,45.9167 54.8889,47.3681 57,49.4792L 57,57L 19,57L 19,49.4792C 21.1111,47.3681 22.1667,45.9167 25.3333,44.3333C 28.5,42.75 30.6111,42.4861 33.25,41.9583L 33.25,36.9628C 32.4457,35.9229 31.8059,34.623 31.3939,33.1546C 30.4077,32.8658 29.6875,31.9545 29.6875,30.875C 29.6875,29.9928 30.1685,29.2229 30.8826,28.8134C 30.0833,22.1667 32.4583,19 38,19 Z "/>
                                <Border HorizontalAlignment="Center" x:Name="BottomBd" Margin="-6,-6,0,0" Visibility="Hidden">
                                    <Path  Fill="#e1e1e1" Data="M7.41,15.41L12,10.83L16.59,15.41L18,14L12,8L6,14L7.41,15.41Z" />
                                </Border>
                            </StackPanel>
                        </Border>
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsMouseOver" Value="true">
                            <Setter Property="Background" TargetName="Bd" Value="#ededef"/>
                        </Trigger>
                        <Trigger Property="IsSelected" Value="true">
                            <Setter Property="Panel.ZIndex" Value="1"/>
                            <Setter Property="Background" TargetName="Bd" Value="#ffffff"/>
                            <Setter Property="Background" Value="#08bd14"/>
                            <Setter Property="Visibility" TargetName="BottomBd" Value="Visible"/>
                        </Trigger>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="IsSelected" Value="false"/>
                                <Condition Property="IsMouseOver" Value="true"/>
                            </MultiTrigger.Conditions>
                            <Setter Property="BorderBrush" TargetName="Bd" Value="#ffffff"/>
                        </MultiTrigger>

                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
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4. Quick reply panel

Use TreeView plus HierarchicalDataTemplate to implement a tree list.

5. Transfer customers

Customize the transfer customer window, the style Xaml code is as follows: 

<Style x:Key="NoResize_Window" TargetType="{x:Type Window}">
                        <Setter Property="FontFamily" Value="Consolas,Microsoft YaHei" />
                        <Setter Property="ResizeMode" Value="CanMinimize" />
                        <Setter Property="Template">
                            <Setter.Value>
                                <ControlTemplate TargetType="{x:Type Window}">
                                    <Grid>
                                        <Grid.RowDefinitions>
                                            <RowDefinition Height="30" />
                                            <RowDefinition Height="*" />
                                        </Grid.RowDefinitions>
                                        <Border Grid.Row="0"  >
                                            <Border.Background>
                                                <LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
                                                    <GradientStop Color="#494A52" Offset="0"/>
                                                    <GradientStop Color="#45464f" Offset="1"/>
                                                </LinearGradientBrush>
                                            </Border.Background>
                                            <Grid>
                                                <!--Icon and Title-->
                                                <DockPanel     >
                                                    <TextBlock Margin="12,0,0,0" Text="{TemplateBinding Title}" FontFamily="Calibri"  VerticalAlignment="Center" Foreground="#FFFFFF" />
                                                    <StackPanel HorizontalAlignment="Right" Orientation="Horizontal" VerticalAlignment="Top">
                                                        <ctrl:MinAndCloseCaptionButton></ctrl:MinAndCloseCaptionButton>
                                                    </StackPanel>
                                                </DockPanel>
                                            </Grid>
                                        </Border>

                                        <Grid Grid.Row="1" >
                                            <Border Background="{TemplateBinding Background}"
                                        BorderBrush="{TemplateBinding BorderBrush}"  
                                        BorderThickness="{TemplateBinding BorderThickness}"
                                        Padding="{TemplateBinding Margin}"
                                        SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"  >
                                                <ContentPresenter />
                                            </Border>
                                        </Grid>
                                    </Grid>
                                </ControlTemplate>
                            </Setter.Value>
                        </Setter>
                    </Style>
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转接客户列表，样式Xaml代码如下：

    <Style x:Key="OnlineUserListBoxStyle" TargetType="{x:Type ListBox}">
        <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}"/>
        <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
        <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
        <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
        <Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
        <Setter Property="ScrollViewer.PanningMode" Value="Both"/>
        <Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
        <Setter Property="VerticalContentAlignment" Value="Center"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type ListBox}">
                    <Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="1" SnapsToDevicePixels="true">
                        <DockPanel>
                            <Border BorderBrush="#dbdbdb" BorderThickness="0,0,0,1" DockPanel.Dock="Top">
                                <Grid Background="#f6f6f6"  TextElement.Foreground="#999999" DockPanel.Dock="Top">
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition Width="*" />
                                        <ColumnDefinition Width="*"/>
                                        <ColumnDefinition Width="*"/>
                                    </Grid.ColumnDefinitions>
                                    <TextBlock Margin="5,7,0,6" Grid.Column="0">状态</TextBlock>
                                    <TextBlock Margin="5,7,0,6" Grid.Column="1">工号</TextBlock>
                                    <TextBlock Margin="5,7,0,6" Grid.Column="2">昵称</TextBlock>
                                </Grid>
                            </Border>
                            <ScrollViewer Focusable="false" Padding="{TemplateBinding Padding}">
                                <ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
                            </ScrollViewer>
                        </DockPanel>
                    </Border>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsEnabled" Value="false">
                            <Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
    <Style x:Key="OnlineUserListBoxItemStyle" TargetType="{x:Type ListBoxItem}">
        <Setter Property="Background" Value="Transparent"/>
        <Setter Property="HorizontalContentAlignment" Value="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
        <Setter Property="VerticalContentAlignment" Value="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
        <Setter Property="Padding" Value="2,0,0,0"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type ListBoxItem}">
                    <Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="true">
                        <Grid>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="*" />
                                <ColumnDefinition Width="*"/>
                                <ColumnDefinition Width="*"/>
                            </Grid.ColumnDefinitions>

                            <StackPanel Grid.Column="0" Orientation="Horizontal" >
                                <Border Margin="4,2,4,2" Height="24" Width="24" >
                                    <Grid>
                                        <Path Fill="#6f6f6f" Data="M6,17C6,15 10,13.9 12,13.9C14,13.9 18,15 18,17V18H6M15,9A3,3 0 0,1 12,12A3,3 0 0,1 9,9A3,3 0 0,1 12,6A3,3 0 0,1 15,9M3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V5A2,2 0 0,0 19,3H5C3.89,3 3,3.9 3,5Z"  />
                                        <Path Visibility="{Binding Path=IsOnLine,Converter={StaticResource BoolToVisibilityConverter}}" Fill="#8bc34a" Data="M6,17C6,15 10,13.9 12,13.9C14,13.9 18,15 18,17V18H6M15,9A3,3 0 0,1 12,12A3,3 0 0,1 9,9A3,3 0 0,1 12,6A3,3 0 0,1 15,9M3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V5A2,2 0 0,0 19,3H5C3.89,3 3,3.9 3,5Z" />
                                    </Grid>
                                </Border>
                                <TextBlock Padding="4,0,4,0" VerticalAlignment="Center"  Text="{Binding Path=OnLineStatus}" />
                            </StackPanel>
                            <StackPanel Grid.Column="1" Orientation="Horizontal"  >
                                <TextBlock Padding="4,0,4,0"  VerticalAlignment="Center" Text="{Binding Path=Name}"/>
                            </StackPanel>
                            <StackPanel Grid.Column="2" Orientation="Horizontal"  >
                                <TextBlock Padding="4,0,4,0"  VerticalAlignment="Center" Text="{Binding Path=RealName}"/>
                            </StackPanel>
                        </Grid>
                    </Border>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsSelected" Value="true">
                            <Setter Property="Background" TargetName="Bd" Value="#9ea5b8"/>
                            <Setter Property="Foreground" Value="#ffffff"/>
                        </Trigger>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="IsSelected" Value="false" />
                                <Condition Property="IsMouseOver" Value="true" />
                            </MultiTrigger.Conditions>
                            <Setter Property="Background" TargetName="Bd" Value="#e0e1e5"/>
                        </MultiTrigger>
                        <Trigger Property="IsEnabled" Value="false">
                            <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
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关于以上控件的事件与命令，引进System.Windows.Interactivity.

在Xmal中导入命名控件 xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"

使用代码如下：

                <ListBox Margin="12,0,12,0" BorderThickness="1" 
                                 Style="{DynamicResource OnlineUserListBoxStyle}" 
                                 ItemContainerStyle="{DynamicResource OnlineUserListBoxItemStyle}"
                                 ItemsSource="{Binding Path= AllUsers}"
                                 SelectedItem="{Binding Path=SelectedUser}"
                                 >
                    <i:Interaction.Triggers>
                        <i:EventTrigger EventName="SelectionChanged">
                            <i:InvokeCommandAction Command="{Binding Path= UserSelectedChangedCommand}" />
                        </i:EventTrigger>
                    </i:Interaction.Triggers>
                </ListBox>
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系统运行截图：

 

说明：

程序UI布局及展示为模仿微信多客服官方程序，所有样式源码为本人所写及参考网上部分资源。

程序中所用图标来源于这两个资源库：http://www.php.cn/  http://www.php.cn/

 

小结：

本文只作了简单的介绍，主要介绍UI上的一些实现和功能介绍。具体后台业务逻辑看以后能否补上，包括Prism使用，和微信公众号相关的知识。

 

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如果文中有不妥或者错误的地方还望您指出，以免让读者产生误解。
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Related labels：
wpf Multiple customer service functions WeChat public account
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