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Merge pull request #95 from SatishRaj4377/WPF-946687-Sequence_Diagram_Example
WPF-946687-Updated the Sequence Diagram Example
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‎Samples/Sequence Diagram/README.md

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# Sequence Diagram Sample
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This sample demonstrate How to create a Sequence Diagram using UMLSequenceDiagramModel.
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__*Documentation*__: https://help.syncfusion.com/wpf/diagram/uml_sequence_diagram#Sequence-Diagram.md
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## Project pre-requisites
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To run this application, you need to have the below two in your system
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* [Visual Studio 2019](https://www.visualstudio.com/wpf-vs)
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* [Syncfusion.SfDiagram.WPF](https://www.nuget.org/packages/Syncfusion.SfDiagram.WPF/) nuget package. To install the package using NuGet Package Manager, refer this [link](https://docs.microsoft.com/en-us/nuget/quickstart/install-and-use-a-package-in-visual-studio#nuget-package-manager).
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## Deploying and running the sample
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* To debug the sample and then run it, press F5 or select Debug > Start Debugging. To run the sample without debugging, press Ctrl+F5 or selectDebug > Start Without Debugging.
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‎Samples/Sequence Diagram/SequenceDiagram/App.config

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<?xml version="1.0" encoding="utf-8" ?>
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<configuration>
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<startup>
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<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2" />
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</startup>
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</configuration>

‎Samples/Sequence Diagram/SequenceDiagram/App.xaml

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<Application x:Class="SequenceDiagram.App"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:local="clr-namespace:SequenceDiagram"
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StartupUri="MainWindow.xaml">
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<Application.Resources>
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</Application.Resources>
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</Application>

‎Samples/Sequence Diagram/SequenceDiagram/App.xaml.cs

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using System;
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using System.Collections.Generic;
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using System.Configuration;
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using System.Data;
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using System.Linq;
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using System.Threading.Tasks;
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using System.Windows;
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namespace SequenceDiagram
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{
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/// <summary>
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/// Interaction logic for App.xaml
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/// </summary>
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public partial class App : Application
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{
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}
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}

‎Samples/Sequence Diagram/SequenceDiagram/MainWindow.xaml

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<Window x:Class="SequenceDiagram.MainWindow"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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xmlns:local="clr-namespace:SequenceDiagram"
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mc:Ignorable="d" xmlns:syncfusion="http://schemas.syncfusion.com/wpf" xmlns:sys="clr-namespace:System;assembly=mscorlib"
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Title="Sequence Diagram" Height="450" Width="800" WindowState="Maximized">
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<Grid x:Name="grid">
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<Grid.ColumnDefinitions>
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<ColumnDefinition Width="9*" />
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<ColumnDefinition Width="4*" />
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</Grid.ColumnDefinitions>
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<!-- SfDiagram control to render the diagram -->
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<syncfusion:SfDiagram x:Name="Diagram" Grid.Column="0">
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<syncfusion:SfDiagram.Model>
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<syncfusion:UMLSequenceDiagramModel SpaceBetweenParticipants="300">
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<!-- Define Participants -->
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<syncfusion:UMLSequenceDiagramModel.Participants>
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<syncfusion:ParticipantCollection>
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<!-- Customer initiates the order -->
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<syncfusion:UMLSequenceParticipant ID="Customer" Content="Customer" IsActor="True" />
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<!-- Order Processing System -->
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<syncfusion:UMLSequenceParticipant ID="OrderSystem" Content="Order System" IsActor="False" />
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<!-- Payment Gateway -->
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<syncfusion:UMLSequenceParticipant ID="PaymentGateway" Content="Payment Gateway" IsActor="False" />
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</syncfusion:ParticipantCollection>
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</syncfusion:UMLSequenceDiagramModel.Participants>
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<!-- Define Messages -->
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<syncfusion:UMLSequenceDiagramModel.Messages>
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<syncfusion:MessageCollection>
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<!-- Customer places an order -->
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<syncfusion:UMLSequenceMessage ID="MSG1"
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Content="Place Order"
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FromParticipantID="Customer"
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ToParticipantID="OrderSystem"
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Type="Synchronous" />
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<!-- System checks if the item is in stock -->
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<syncfusion:UMLSequenceMessage ID="MSG2"
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Content="Check Stock Availability"
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FromParticipantID="OrderSystem"
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ToParticipantID="OrderSystem"
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Type="Synchronous" />
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<!-- System confirms stock is available -->
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<syncfusion:UMLSequenceMessage ID="MSG3"
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Content="Stock Available"
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FromParticipantID="OrderSystem"
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ToParticipantID="Customer"
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Type="Reply" />
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<!-- System requests payment processing -->
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<syncfusion:UMLSequenceMessage ID="MSG4"
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Content="Process Payment"
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FromParticipantID="OrderSystem"
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ToParticipantID="PaymentGateway"
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Type="Synchronous" />
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<!-- Payment success message -->
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<syncfusion:UMLSequenceMessage ID="MSG5"
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Content="Payment Successful"
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FromParticipantID="PaymentGateway"
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ToParticipantID="OrderSystem"
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Type="Reply" />
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<!-- System confirms order processing -->
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<syncfusion:UMLSequenceMessage ID="MSG6"
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Content="Order Confirmed and Shipped"
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FromParticipantID="OrderSystem"
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ToParticipantID="Customer"
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Type="Reply" />
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<!-- Payment failure message -->
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<syncfusion:UMLSequenceMessage ID="MSG7"
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Content="Payment Failed"
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FromParticipantID="PaymentGateway"
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ToParticipantID="OrderSystem"
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Type="Reply" />
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<!-- Retry payment message -->
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<syncfusion:UMLSequenceMessage ID="MSG8"
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Content="Retry Payment"
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FromParticipantID="OrderSystem"
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ToParticipantID="Customer"
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Type="Reply" />
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</syncfusion:MessageCollection>
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</syncfusion:UMLSequenceDiagramModel.Messages>
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<!-- Define Fragments -->
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<syncfusion:UMLSequenceDiagramModel.Fragments>
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<syncfusion:FragmentCollection>
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<!-- Loop Fragment: Retry payment attempts -->
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<syncfusion:UMLSequenceFragment ID="Frag3" Type="Loop">
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<syncfusion:UMLSequenceFragment.Conditions>
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<syncfusion:ConditionCollection>
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<syncfusion:UMLSequenceFragmentCondition Content="[while attempts less than 3]">
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<!--Nested Fragments Inside Loop Fragment-->
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<syncfusion:UMLSequenceFragmentCondition.Fragments>
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<syncfusion:FragmentCollection>
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<!-- Optional Fragment: Only executes if item is in stock -->
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<syncfusion:UMLSequenceFragment ID="Frag1" Type="Optional">
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<syncfusion:UMLSequenceFragment.Conditions>
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<syncfusion:ConditionCollection>
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<syncfusion:UMLSequenceFragmentCondition Content="[if item is in stock">
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<syncfusion:UMLSequenceFragmentCondition.MessageIds>
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<syncfusion:MessageIdCollection>
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<sys:String>MSG4</sys:String>
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</syncfusion:MessageIdCollection>
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</syncfusion:UMLSequenceFragmentCondition.MessageIds>
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</syncfusion:UMLSequenceFragmentCondition>
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</syncfusion:ConditionCollection>
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</syncfusion:UMLSequenceFragment.Conditions>
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</syncfusion:UMLSequenceFragment>
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<!-- Alternative Fragment: Payment success or failure -->
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<syncfusion:UMLSequenceFragment ID="Frag2" Type="Alternative">
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<syncfusion:UMLSequenceFragment.Conditions>
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<syncfusion:ConditionCollection>
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<!-- If payment is successful -->
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<syncfusion:UMLSequenceFragmentCondition Content="[if payment is successful]">
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<syncfusion:UMLSequenceFragmentCondition.MessageIds>
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<syncfusion:MessageIdCollection>
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<sys:String>MSG5</sys:String>
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<sys:String>MSG6</sys:String>
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</syncfusion:MessageIdCollection>
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</syncfusion:UMLSequenceFragmentCondition.MessageIds>
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</syncfusion:UMLSequenceFragmentCondition>
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<!-- If payment fails -->
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<syncfusion:UMLSequenceFragmentCondition Content="[if payment fails]">
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<syncfusion:UMLSequenceFragmentCondition.MessageIds>
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<syncfusion:MessageIdCollection>
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<sys:String>MSG7</sys:String>
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<sys:String>MSG8</sys:String>
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</syncfusion:MessageIdCollection>
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</syncfusion:UMLSequenceFragmentCondition.MessageIds>
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</syncfusion:UMLSequenceFragmentCondition>
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</syncfusion:ConditionCollection>
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</syncfusion:UMLSequenceFragment.Conditions>
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</syncfusion:UMLSequenceFragment>
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</syncfusion:FragmentCollection>
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</syncfusion:UMLSequenceFragmentCondition.Fragments>
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</syncfusion:UMLSequenceFragmentCondition>
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</syncfusion:ConditionCollection>
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</syncfusion:UMLSequenceFragment.Conditions>
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</syncfusion:UMLSequenceFragment>
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</syncfusion:FragmentCollection>
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</syncfusion:UMLSequenceDiagramModel.Fragments>
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</syncfusion:UMLSequenceDiagramModel>
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</syncfusion:SfDiagram.Model>
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</syncfusion:SfDiagram>
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<StackPanel Grid.Column="1" Orientation="Vertical" Background="Beige">
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<Grid>
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<Grid.RowDefinitions>
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<RowDefinition Height="auto"/>
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<RowDefinition Height="*"/>
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<RowDefinition Height="auto"/>
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</Grid.RowDefinitions>
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<Label Content="Mermaid Text" Grid.Row="0" HorizontalAlignment="Center" FontWeight="SemiBold" FontSize="16"/>
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<TextBox x:Name="MermaidTextBox" Grid.Row="1" TextWrapping="Wrap"
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BorderThickness="0" AcceptsReturn="True" Background="Beige"
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MaxHeight="600" Height="500"
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FontFamily="Consolas"
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VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Padding="10"/>
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<StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Grid.Row="2">
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<Button x:Name="SaveDiagramFromMermaid" Content="Save Diagram As Mermaid" Width="190"
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Padding="10, 9" Click="SaveDiagramFromMermaid_Click" Foreground="#FF004C99" VerticalAlignment="Bottom"
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HorizontalAlignment="Stretch" Background="SkyBlue" BorderThickness="0" FontWeight="SemiBold"/>
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<Button x:Name="LoadDiagramFromMermaid" Content="Load Diagram From Mermaid" Width="190" Margin="5 0 0 0"
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Padding="10, 9" Click="LoadDiagramFromMermaid_Click" Foreground="#FF004C99" VerticalAlignment="Bottom"
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HorizontalAlignment="Stretch" Background="SkyBlue" BorderThickness="0" FontWeight="SemiBold"/>
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</StackPanel>
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</Grid>
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</StackPanel>
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</Grid>
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</Window>

‎Samples/Sequence Diagram/SequenceDiagram/MainWindow.xaml.cs

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using Syncfusion.UI.Xaml.Diagram;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Data;
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using System.Windows.Documents;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using System.Windows.Navigation;
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using System.Windows.Shapes;
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namespace SequenceDiagram
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{
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/// <summary>
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/// Interaction logic for MainWindow.xaml
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/// </summary>
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public partial class MainWindow : Window
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{
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public MainWindow()
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{
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InitializeComponent();
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}
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private void LoadDiagramFromMermaid_Click(object sender, RoutedEventArgs e)
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{
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if (!string.IsNullOrEmpty(MermaidTextBox.Text))
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{
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Diagram.LoadDiagramFromMermaid(MermaidTextBox.Text.ToString());
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}
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}
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private void SaveDiagramFromMermaid_Click(object sender, RoutedEventArgs e)
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{
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if (Diagram.Model != null)
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MermaidTextBox.Text = Diagram.SaveDiagramAsMermaid();
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}
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}
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}

‎Samples/Sequence Diagram/SequenceDiagram/Properties/AssemblyInfo.cs

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using System.Reflection;
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using System.Resources;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Windows;
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// General Information about an assembly is controlled through the following
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// set of attributes. Change these attribute values to modify the information
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// associated with an assembly.
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[assembly: AssemblyTitle("SequenceDiagram")]
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[assembly: AssemblyDescription("")]
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[assembly: AssemblyConfiguration("")]
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[assembly: AssemblyCompany("")]
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[assembly: AssemblyProduct("SequenceDiagram")]
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[assembly: AssemblyCopyright("Copyright © 2025")]
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[assembly: AssemblyTrademark("")]
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[assembly: AssemblyCulture("")]
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// Setting ComVisible to false makes the types in this assembly not visible
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// to COM components. If you need to access a type in this assembly from
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// COM, set the ComVisible attribute to true on that type.
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[assembly: ComVisible(false)]
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//In order to begin building localizable applications, set
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//<UICulture>CultureYouAreCodingWith</UICulture> in your .csproj file
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//inside a <PropertyGroup>. For example, if you are using US english
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//in your source files, set the <UICulture> to en-US. Then uncomment
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//the NeutralResourceLanguage attribute below. Update the "en-US" in
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//the line below to match the UICulture setting in the project file.
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//[assembly: NeutralResourcesLanguage("en-US", UltimateResourceFallbackLocation.Satellite)]
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[assembly:ThemeInfo(
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ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
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//(used if a resource is not found in the page,
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// or application resource dictionaries)
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ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
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//(used if a resource is not found in the page,
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// app, or any theme specific resource dictionaries)
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)]
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// Version information for an assembly consists of the following four values:
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//
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// Major Version
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// Minor Version
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// Build Number
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// Revision
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//
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[assembly: AssemblyVersion("1.0.0.0")]
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[assembly: AssemblyFileVersion("1.0.0.0")]

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