965210: Missing Public API Sample in Blazor UG Documentation

UG-Samples/Interaction/CurrentSelection/CurrentSelection/App.razor

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+@namespace CurrentSelection
+<Router AppAssembly="@typeof(App).Assembly">
+    <Found Context="routeData">
+        <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
+        <FocusOnNavigate RouteData="@routeData" Selector="h1" />
+    </Found>
+    <NotFound>
+        <PageTitle>Not found</PageTitle>
+        <LayoutView Layout="@typeof(MainLayout)">
+            <p role="alert">Sorry, there's nothing at this address.</p>
+        </LayoutView>
+    </NotFound>
+</Router>
+

UG-Samples/Interaction/CurrentSelection/CurrentSelection/CurrentSelection_NET8.csproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk.Web">
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.Blazor.Diagram" Version="*" />
+    <PackageReference Include="Syncfusion.Blazor.Themes" Version="*" />
+  </ItemGroup>
+  <ItemGroup>
+    <Folder Include="wwwroot\" />
+  </ItemGroup>
+</Project>

UG-Samples/Interaction/CurrentSelection/CurrentSelection/CurrentSelection_NET9.csproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk.Web">
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.Blazor.Diagram" Version="*" />
+    <PackageReference Include="Syncfusion.Blazor.Themes" Version="*" />
+  </ItemGroup>
+  <ItemGroup>
+    <Folder Include="wwwroot\" />
+  </ItemGroup>
+</Project>

UG-Samples/Interaction/CurrentSelection/CurrentSelection/Pages/Index.razor

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+@page "/"
+@using Syncfusion.Blazor.Diagram
+@using Syncfusion.Blazor.Buttons
+@using SelectionChangedEventArgs = Syncfusion.Blazor.Diagram.SelectionChangedEventArgs 
+
+<SfButton Content="GetSelectionInfo" OnClick="GetSelectionInfo"></SfButton>
+<SfDiagramComponent @ref="diagram" Height="600px" Nodes="@NodeCollection" Connectors="@ConnectorCollection" SelectionChanged="OnSelectionChanged">
+</SfDiagramComponent>
+@code {
+    SfDiagramComponent diagram;
+    //Initailize the diagram's nodes collection
+    public DiagramObjectCollection<Node> NodeCollection = new DiagramObjectCollection<Node>();
+    //Initailize the diagram's connector collection
+    public DiagramObjectCollection<Connector> ConnectorCollection = new DiagramObjectCollection<Connector>();
+    protected override void OnInitialized()
+    {
+        Node node1 = new Node()
+        {
+            OffsetX = 100,
+            OffsetY = 200,
+            Height = 100,
+            Width = 100,
+            ID = "node1",
+        };
+        NodeCollection.Add(node1);
+        Connector connector1 = new Connector()
+        {
+            ID = "connector1",
+            SourcePoint = new DiagramPoint() { X = 300, Y = 100 },
+            TargetPoint = new DiagramPoint() { X = 400, Y = 300 },
+            Type = ConnectorSegmentType.Orthogonal
+        };
+        ConnectorCollection.Add(connector1);
+    }
+    //Event to notify selection changing event after selected the nodes/conenctors in diagram.
+    private void OnSelectionChanged(SelectionChangedEventArgs args)
+    {
+        if (diagram.SelectionSettings.Nodes.Count > 0)
+        {
+            Node selectedNode = diagram.SelectionSettings.Nodes[0];
+            //Here you can modified the selected node.
+        }
+        if (diagram.SelectionSettings.Connectors.Count > 0)
+        {
+            Connector selectedConnector = diagram.SelectionSettings.Connectors[0];
+            //Here you can modified the selected connector.
+        }
+    }
+
+    // Method to get current selection information
+    private void GetSelectionInfo()
+    {
+        // Get selected nodes
+        var selectedNodes = diagram.SelectionSettings.Nodes;
+        foreach (var node in selectedNodes)
+        {
+            Console.WriteLine($"Selected Node ID: {node.ID}");
+            Console.WriteLine($"Node OffsetX: {node.OffsetX}");
+            Console.WriteLine($"Node OffsetY: {node.OffsetY}");
+            Console.WriteLine($"Node Width: {node.Width}");
+            Console.WriteLine($"Node Height: {node.Height}");
+            Console.WriteLine($"Node Rotation: {node.RotationAngle}");
+        }
+
+        // Get selected connectors
+        var selectedConnectors = diagram.SelectionSettings.Connectors;
+        foreach (var connector in selectedConnectors)
+        {
+            Console.WriteLine($"Selected Connector ID: {connector.ID}");
+            Console.WriteLine($"Connector SourcePoint: X={connector.SourcePoint.X}, Y={connector.SourcePoint.Y}");
+            Console.WriteLine($"Connector TargetPoint: X={connector.TargetPoint.X}, Y={connector.TargetPoint.Y}");
+        }
+
+        // Get selection bounds information
+        Console.WriteLine($"Selection OffsetX: {diagram.SelectionSettings.OffsetX}");
+        Console.WriteLine($"Selection OffsetY: {diagram.SelectionSettings.OffsetY}");
+        Console.WriteLine($"Selection Width: {diagram.SelectionSettings.Width}");
+        Console.WriteLine($"Selection Height: {diagram.SelectionSettings.Height}");
+        Console.WriteLine($"Selection Rotation: {diagram.SelectionSettings.RotationAngle}");
+        Console.WriteLine($"Selection Pivot: {diagram.SelectionSettings.Pivot}");
+    }
+}

UG-Samples/Interaction/CurrentSelection/CurrentSelection/Pages/_Host.cshtml

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+@page "/"
+@namespace CurrentSelection.Pages
+@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
+@{
+    Layout = "_Layout";
+}
+
+<component type="typeof(App)" render-mode="ServerPrerendered" />

UG-Samples/Interaction/CurrentSelection/CurrentSelection/Pages/_Layout.cshtml

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+@using Microsoft.AspNetCore.Components.Web
+@namespace CurrentSelection.Pages
+@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <base href="~/" />
+    <link rel="stylesheet" href="css/bootstrap/bootstrap.min.css" />
+    <link href="css/site.css" rel="stylesheet" />
+     <script src="_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js" type="text/javascript"></script>
+<link href="_content/Syncfusion.Blazor.Themes/bootstrap5.css" rel="stylesheet" />
+    <component type="typeof(HeadOutlet)" render-mode="ServerPrerendered" />
+</head>
+<body>
+    @RenderBody()
+
+
+
+    <script src="_framework/blazor.server.js"></script>
+</body>
+</html>

UG-Samples/Interaction/CurrentSelection/CurrentSelection/Program.cs

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+
+using Microsoft.AspNetCore.Components;
+using Microsoft.AspNetCore.Components.Web;
+using Syncfusion.Blazor;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+builder.Services.AddRazorPages();
+builder.Services.AddServerSideBlazor();
+builder.Services.AddSyncfusionBlazor();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (!app.Environment.IsDevelopment())
+{
+    app.UseExceptionHandler("/Error");
+    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
+    app.UseHsts();
+}
+
+app.UseHttpsRedirection();
+
+app.UseStaticFiles();
+
+app.UseRouting();
+
+app.MapBlazorHub();
+app.MapFallbackToPage("/_Host");
+
+app.Run();

UG-Samples/Interaction/CurrentSelection/CurrentSelection/Properties/launchSettings.json

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+{
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:11920",
+      "sslPort": 44341
+    }
+  },
+  "profiles": {
+    "DiagramSelectionEvent": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "https://localhost:7204;http://localhost:5236",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

UG-Samples/Interaction/CurrentSelection/CurrentSelection/Shared/MainLayout.razor

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+@namespace CurrentSelection.Shared
+@inherits LayoutComponentBase
+
+<PageTitle>DiagramSelectionEvent</PageTitle>
+
+<div class="page">
+    <div class="sidebar">
+        <NavMenu />
+    </div>
+
+
+    <main>
+
+        <article class="content px-4">
+            @Body
+        </article>
+    </main>
+</div>

UG-Samples/Interaction/CurrentSelection/CurrentSelection/Shared/MainLayout.razor.css

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+.page {
+    position: relative;
+    display: flex;
+    flex-direction: column;
+}
+
+main {
+    flex: 1;
+}
+
+.sidebar {
+    background-image: linear-gradient(180deg, rgb(5, 39, 103) 0%, #3a0647 70%);
+}
+
+.top-row {
+    background-color: #f7f7f7;
+    border-bottom: 1px solid #d6d5d5;
+    justify-content: flex-end;
+    height: 3.5rem;
+    display: flex;
+    align-items: center;
+}
+
+    .top-row ::deep a, .top-row .btn-link {
+        white-space: nowrap;
+        margin-left: 1.5rem;
+    }
+
+    .top-row a:first-child {
+        overflow: hidden;
+        text-overflow: ellipsis;
+    }
+
+@media (max-width: 640.98px) {
+    .top-row:not(.auth) {
+        display: none;
+    }
+
+    .top-row.auth {
+        justify-content: space-between;
+    }
+
+    .top-row a, .top-row .btn-link {
+        margin-left: 0;
+    }
+}
+
+@media (min-width: 641px) {
+    .page {
+        flex-direction: row;
+    }
+
+    .sidebar {
+        width: 250px;
+        height: 100vh;
+        position: sticky;
+        top: 0;
+    }
+
+    .top-row {
+        position: sticky;
+        top: 0;
+        z-index: 1;
+    }
+
+    .top-row, article {
+        padding-left: 2rem !important;
+        padding-right: 1.5rem !important;
+    }
+}

UG-Samples/Interaction/CurrentSelection/CurrentSelection/_Imports.razor

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+@using System.Net.Http
+@using Microsoft.AspNetCore.Authorization
+@using Microsoft.AspNetCore.Components.Authorization
+@using Microsoft.AspNetCore.Components.Forms
+@using Microsoft.AspNetCore.Components.Routing
+@using Microsoft.AspNetCore.Components.Web
+@using Microsoft.AspNetCore.Components.Web.Virtualization
+@using Microsoft.JSInterop
+@using CurrentSelection
+@using CurrentSelection.Shared

UG-Samples/Interaction/CurrentSelection/CurrentSelection/appsettings.Development.json

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+{
+  "DetailedErrors": true,
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

UG-Samples/Interaction/CurrentSelection/CurrentSelection/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}