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Keerthivasan-RamamoorthyKeerthivasan-Ramamoorthy
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Merge pull request #141 from BalaVigneshRaviChandran/ES-965210-APIExplanation
965210: Missing Public API Sample in Blazor UG Documentation
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‎UG-Samples/Interaction/CurrentSelection/CurrentSelection/App.razor‎

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@namespace CurrentSelection
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<Router AppAssembly="@typeof(App).Assembly">
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<Found Context="routeData">
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<RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
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<FocusOnNavigate RouteData="@routeData" Selector="h1" />
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</Found>
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<NotFound>
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<PageTitle>Not found</PageTitle>
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<LayoutView Layout="@typeof(MainLayout)">
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<p role="alert">Sorry, there's nothing at this address.</p>
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</LayoutView>
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</NotFound>
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</Router>
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‎UG-Samples/Interaction/CurrentSelection/CurrentSelection/CurrentSelection_NET8.csproj‎

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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