963343: Render Diagram when opens Dialog

KB-Samples/DiagramInDialog/DiagramInDialog/App.razor

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+@namespace DiagramInDialog
+<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>

KB-Samples/DiagramInDialog/DiagramInDialog/DiagramInDialog_NET8.csproj

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+<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>
+
+</Project>

KB-Samples/DiagramInDialog/DiagramInDialog/DiagramInDialog_NET8.csproj.user

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ActiveDebugProfile>https</ActiveDebugProfile>
+  </PropertyGroup>
+</Project>

KB-Samples/DiagramInDialog/DiagramInDialog/DiagramInDialog_NET9.csproj

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+<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>
+
+</Project>

KB-Samples/DiagramInDialog/DiagramInDialog/DiagramInDialog_NET9.csproj.user

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ActiveDebugProfile>https</ActiveDebugProfile>
+  </PropertyGroup>
+</Project>

KB-Samples/DiagramInDialog/DiagramInDialog/MainLayout.razor

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+@inherits LayoutComponentBase
+@namespace DiagramInDialog
+<main> @Body </main>

KB-Samples/DiagramInDialog/DiagramInDialog/Pages/Index.razor

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+@page "/"
+
+@using Syncfusion.Blazor.Buttons
+@using Syncfusion.Blazor.Popups
+@using Syncfusion.Blazor.Diagram
+@using System.Collections.ObjectModel
+@inject IJSRuntime jsRuntime;
+
+<div id="target" style="height:100%">
+    <SfButton CssClass="e-primary" @onclick="ShowDialog">Open Diagram Dialog</SfButton>
+</div>
+
+<SfDialog ShowCloseIcon="true"
+          Width="707px"
+          Height="1000px"
+          IsModal="true"
+          Target="#target"
+          AllowPrerender="true"
+          @ref="_dialog"
+          Visible="@IsDialogVisible">
+    <DialogEvents OnOpen="OpenDialog" OnClose="CloseDialog" Opened="OpenedDialog"></DialogEvents>
+    <DialogAnimationSettings Effect="@DialogEffect.Zoom"></DialogAnimationSettings>
+    <DialogTemplates>
+        <Header>
+            <div id="template" class="e-icon-settings">E-mail Diagram</div>
+        </Header>
+        <Content>
+            <SfDiagramComponent @ref="Diagram"
+                                InteractionController="DiagramInteractions.ZoomPan"
+                                NodeCreating="NodeDefaults"
+                                ConnectorCreating="ConnectorDefaults">
+                <SnapSettings Constraints="SnapConstraints.None"></SnapSettings>
+                <DataSourceSettings ID="Id"
+                                    ParentID="ParentId"
+                                    DataSource="@DataSource">
+                </DataSourceSettings>
+                <Layout Type="LayoutType.HierarchicalTree"
+                        HorizontalSpacing="@HorizontalSpacing"
+                        VerticalSpacing="@VerticalSpacing">
+                </Layout>
+            </SfDiagramComponent>
+        </Content>
+    </DialogTemplates>
+</SfDialog>
+
+@code {
+    private SfDialog _dialog;
+    private SfDiagramComponent Diagram;
+
+    private bool IsDialogVisible = false;
+
+    private int HorizontalSpacing { get; set; } = 50;
+    private int VerticalSpacing { get; set; } = 50;
+    bool open = false;
+    public ObservableCollection<DiagramData> DataSource { get; set; } = new()
+    {
+        new DiagramData { Id = "1", ParentId = "", Label = "CEO" },
+        new DiagramData { Id = "2", ParentId = "1", Label = "Manager" },
+        new DiagramData { Id = "3", ParentId = "2", Label = "Team Lead" },
+        new DiagramData { Id = "4", ParentId = "3", Label = "Senior Developer" },
+        new DiagramData { Id = "5", ParentId = "4", Label = "Developer" },
+        new DiagramData { Id = "6", ParentId = "5", Label = "Fresher" }
+    };
+
+    public class DiagramData
+    {
+        public string Id { get; set; }
+        public string ParentId { get; set; }
+        public string Label { get; set; }
+    }
+
+    private async Task ShowDialog()
+    {
+        IsDialogVisible = true;
+    }
+    private async Task OpenDialog(BeforeOpenEventArgs args)
+    {
+        await jsRuntime.InvokeAsync<object>("UpdateWindow").ConfigureAwait(true);
+        open = true;
+    }
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        await base.OnAfterRenderAsync(firstRender);
+        if (open && Diagram != null)
+        {
+            await Task.Delay(1000);
+            Diagram.FitToPage(new FitOptions() { Mode = FitMode.Both, Region = DiagramRegion.Content });
+            open = false;
+        }
+    }
+
+
+    private void CloseDialog(BeforeCloseEventArgs args)
+    {
+        IsDialogVisible = false;
+    }
+
+    private void NodeDefaults(IDiagramObject obj)
+    {
+        if (obj is Node node)
+        {
+            node.Width = 100;
+            node.Height = 40;
+            node.Style = new ShapeStyle { Fill = "#6BA5D7", StrokeColor = "white" };
+        }
+    }
+
+    private void ConnectorDefaults(IDiagramObject obj)
+    {
+        if (obj is Connector connector)
+        {
+            connector.Type = ConnectorSegmentType.Orthogonal;
+            connector.Style = new ShapeStyle { StrokeColor = "#6BA5D7", StrokeWidth = 2 };
+        }
+    }
+
+    private void OpenedDialog()
+    {
+        FitOptions Options = new FitOptions()
+            {
+                Mode = FitMode.Both,
+                Region = DiagramRegion.Content
+            };
+        Diagram.FitToPage(Options);
+    }
+}
+
+<style>
+    #target {
+        min-height: 660px;
+    }
+</style>

KB-Samples/DiagramInDialog/DiagramInDialog/Pages/_Host.cshtml

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+@page "/"
+@using Microsoft.AspNetCore.Components.Web
+@namespace DiagramInDialog.Pages
+@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8" />
+    <base href="~/" />
+    <link href="css/site.css" rel="stylesheet" />
+    <link href="_content/Syncfusion.Blazor.Themes/bootstrap5.3.css" rel="stylesheet" />
+    <script src="_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js" type="text/javascript"></script>
+    <script src="~/interop.js"></script>
+    <component type="typeof(HeadOutlet)" render-mode="ServerPrerendered" />
+</head>
+<body>
+    <component type="typeof(App)" render-mode="ServerPrerendered" />
+
+    <div id="blazor-error-ui">
+        <environment include="Staging,Production">
+            An error has occurred. This application may no longer respond until reloaded.
+        </environment>
+        <environment include="Development">
+            An unhandled exception has occurred. See browser dev tools for details.
+        </environment>
+        <a href="" class="reload">Reload</a>
+        <a class="dismiss">🗙</a>
+    </div>
+
+    <script src="_framework/blazor.server.js"></script>
+</body>
+</html>

KB-Samples/DiagramInDialog/DiagramInDialog/Program.cs

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+using Microsoft.AspNetCore.Components;
+using Microsoft.AspNetCore.Components.Web;
+using Syncfusion.Blazor;
+var builder = WebApplication.CreateBuilder(args);
+builder.Services.AddRazorPages();
+builder.Services.AddServerSideBlazor();
+builder.Services.AddSyncfusionBlazor();
+builder.Services.AddSignalR(e => {
+    e.MaximumReceiveMessageSize = 102400000;
+});
+var app = builder.Build();
+
+if (!app.Environment.IsDevelopment())
+{
+    // 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();

KB-Samples/DiagramInDialog/DiagramInDialog/Properties/launchSettings.json

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+{
+  "iisSettings": {
+    "iisExpress": {
+      "applicationUrl": "http://localhost:18318",
+      "sslPort": 44368
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "http://localhost:5048",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "https://localhost:7088;http://localhost:5048",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

KB-Samples/DiagramInDialog/DiagramInDialog/_Imports.razor

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+@using Microsoft.AspNetCore.Components.Routing
+@using Microsoft.AspNetCore.Components.Web
+@using Microsoft.JSInterop
+@using DiagramInDialog
+

KB-Samples/DiagramInDialog/DiagramInDialog/appsettings.Development.json

@@ -0,0 +1,9 @@
+{
+  "DetailedErrors": true,
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

KB-Samples/DiagramInDialog/DiagramInDialog/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

KB-Samples/DiagramInDialog/DiagramInDialog/wwwroot/Interop.js

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+function UpdateWindow() {
+    window.dispatchEvent(new Event('resize'));
+}

KB-Samples/DiagramInDialog/DiagramInDialog/wwwroot/css/site.css

@@ -0,0 +1,28 @@
+#blazor-error-ui {
+    background: lightyellow;
+    bottom: 0;
+    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
+    display: none;
+    left: 0;
+    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
+    position: fixed;
+    width: 100%;
+    z-index: 1000;
+}
+
+    #blazor-error-ui .dismiss {
+        cursor: pointer;
+        position: absolute;
+        right: 3.5rem;
+        top: 0.5rem;
+    }
+
+.blazor-error-boundary {
+    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
+    padding: 1rem 1rem 1rem 3.7rem;
+    color: white;
+}
+
+    .blazor-error-boundary::after {
+        content: "An error has occurred."
+    }