Telerik DevCraft包含一個完整的產(chǎn)品棧來構建您下一個Web、移動和桌面應用程序。它使用HTML和每個.NET平臺的UI庫，加快開發(fā)速度。Telerik DevCraft提供完整的工具箱，用于構建現(xiàn)代和面向未來的業(yè)務應用程序，目前提供UI for ASP.NET MVC、Kendo UI、UI for ASP.NET AJAX、UI for WPF、UI for Xamarin、Reporting等眾多控件。

在這篇文章中，我們將演示如何在Telerik UI for WinForms應用程序中使用Kendo UI for Angular組件。您將了解其中的陷阱，以及如何從WinForms實現(xiàn)與Angular的通信，并從Angular獲取事件。

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有幾種情況可以應用此方法：

• 開始從傳統(tǒng)的WinForms應用程序遷移到Angular
• 本地資源集成（本地數(shù)據(jù)庫和其他WinForms資源）
• 在復雜的WinForms應用程序中構建輕量級UI應用程序
• 構建具有Web應用程序外觀和感覺的WinForms應用程序
• 執(zhí)行在Docker、IIS或Cloud中運行的分布式UI
• 無需更新WinForms應用程序客戶端應用程序即可更新UI

這些來自遺留應用程序的轉(zhuǎn)換場景可以幫助您在開發(fā)新的服務/應用程序時使用激活的生產(chǎn)資源，混合解決方案可以保留當前的WinForms，同時授權開發(fā)人員構建客戶端應用程序。

在上文中（），我們?yōu)榇蠹医榻B了Kendo UI for Angular組件在WinForms應用中的深度嵌入的一些入門指南，本文將繼續(xù)介紹如何配置WinForms應用，請繼續(xù)關注喲~

配置WinForms應用

在WinForms應用程序中，我將主機組件WebView2隔離在一個用戶控件AngularWebControl上。因此，所有組件都具有相同的UserControl基礎并共享相同的操作。

WebView2是必需的，它可以從URL中保存Angular應用程序，并與WinForms交互。

這是C#項目中的解決方案文件，看起來像這樣：

AngularDefs.cs將Angular項目的定義放在一個地方。這也可以是環(huán)境變量，以避免硬編碼數(shù)據(jù)：

1. namespace app_winforsm;
2. internal static class AngularDefs
3. {
4. // URL of the Angular application
5. public const string Url = "http://aw.jsmotta.com/";
6.
7. // Route to the graph component
8. public const string RouteGraph = "graph-control";
9.
10. // Verb to receive data in the Angular component
11. public const string ChartVerb = "receiveData";
12. }

AngularWebControl.cs保存著接口的任務，我們在下面的代碼中添加了一些解釋。它定義組件的接口，讀取click事件，并將其傳遞給事件處理程序。

1. using Microsoft.Web.WebView2.Core;
2. using Microsoft.Web.WebView2.WinForms;
3. using System.Text.Json;
4. using Telerik.WinControls.UI;
5.
6. namespace app_winforsm;
7. internal partial class AngularWebControl : UserControl
8. {
9. // WebView Control
10. private WebView2? _webView;
11.
12. // Event to handle chart item click - it could be only OnItemClick
13. public event EventHandler? OnChartItemClick;
14.
15. // The data to be passed to the Angular component
16. private dynamic? Data { get; set; }
17.
18. // a label to show the title of the control
19. // in a real-world scenario, we can extend this component and add other controls
20. private RadLabel? Title { get; set; }
21.
22. public AngularWebControl()
23. {
24. InitializeComponent();
25. }
26. public async void LoadData(string title, dynamic data)
27. {
28. if (Title == null)
29. {
30. Title = new RadLabel
31. {
32. Text = title,
33. Dock = DockStyle.Top,
34. Width = this.Width,
35. AutoSize = true,
36. Font = new Font("Arial", 12, FontStyle.Bold),
37. ThemeName = "Windows11"
38. };
39.
40.
41. this.Controls.Add(Title);
42.
43. Title.MouseUp += Title_MouseUp;
44. }
45.
46. this.Title.Text = title;
47.
48. if (_webView == null)
49. {
50. _webView = new WebView2
51. {
52. Visible = true,
53. Dock = DockStyle.Fill
54. };
55.
56. this.Controls.Add(_webView);
57.
58. var userDataFolder1 = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), $"AngularWinFormsApp_{this.Name}");
59.
60. var environment1 = await CoreWebView2Environment.CreateAsync(userDataFolder: userDataFolder1);
61.
62. // The environment is created to avoid loss of data in the session
63. await _webView.EnsureCoreWebView2Async(environment1);
64.
65.
66. _webView.CoreWebView2.NavigationCompleted += WebView_NavigationCompleted;
67.
68. // Event to receive data from Angular
69. _webView.CoreWebView2.WebMessageReceived += CoreWebView2_WebMessageReceived;
70.
71. _webView.CoreWebView2.Navigate($"{AngularDefs.Url}{AngularDefs.RouteGraph}");
72.
73. if (OnChartItemClick != null)
74. {
75. // This is the trick to receive data from the Angular component
76. await _webView.CoreWebView2.ExecuteScriptAsync(@"
77. window.addEventListener('MyClick', function(event) {
78. window.chrome.webview.postMessage(event.detail.message);
79. });
80. ");
81. }
82. }
83.
84. // Send the data to the Angular component
85. this.Data = data;
86. }
87.
88. private void Title_MouseUp(object? sender, MouseEventArgs e)
89. {
90. if (e.Button == MouseButtons.Right)
91. {
92. // An easter egg to show the WebView console
93. // when pressing right click on the RadLabel
94. ShowWebViewConsole();
95. }
96. }
97.
98. // Event handler to handle messages received from the WebView2
99. private void CoreWebView2_WebMessageReceived(object? sender, CoreWebView2WebMessageReceivedEventArgs e)
100. {
101. // Retrieve the message from the event
102. var message = e.TryGetWebMessageAsString();
103.
104. // Display the message or perform any action
105. OnChartItemClick?.Invoke(message, EventArgs.Empty);
106. }
107. private async void WebView_NavigationCompleted(object? sender, CoreWebView2NavigationCompletedEventArgs e)
108. {
109. if (_webView == null) return;
110.
111. _webView.Visible = true;
112.
113. if (!e.IsSuccess)
114. {
115. // Return a custom messsage based on the error to avoid default Webview error page
116. switch (e.WebErrorStatus)
117. {
118.
119. case CoreWebView2WebErrorStatus.ConnectionAborted:
120. ShowErrorMessage("Connection refused. Please make sure the server is running and try again.");
121. break;
122. case CoreWebView2WebErrorStatus.Unknown:
123. case CoreWebView2WebErrorStatus.CertificateCommonNameIsIncorrect:
124. case CoreWebView2WebErrorStatus.CertificateExpired:
125. case CoreWebView2WebErrorStatus.ClientCertificateContainsErrors:
126. case CoreWebView2WebErrorStatus.CertificateRevoked:
127. case CoreWebView2WebErrorStatus.CertificateIsInvalid:
128. case CoreWebView2WebErrorStatus.ServerUnreachable:
129. case CoreWebView2WebErrorStatus.Timeout:
130. case CoreWebView2WebErrorStatus.ErrorHttpInvalidServerResponse:
131. case CoreWebView2WebErrorStatus.ConnectionReset:
132. case CoreWebView2WebErrorStatus.Disconnected:
133. case CoreWebView2WebErrorStatus.CannotConnect:
134. case CoreWebView2WebErrorStatus.HostNameNotResolved:
135. case CoreWebView2WebErrorStatus.OperationCanceled:
136. case CoreWebView2WebErrorStatus.RedirectFailed:
137. case CoreWebView2WebErrorStatus.UnexpectedError:
138. case CoreWebView2WebErrorStatus.ValidAuthenticationCredentialsRequired:
139. case CoreWebView2WebErrorStatus.ValidProxyAuthenticationRequired:
140. default:
141. ShowErrorMessage("An error occurred while loading the page.");
142. break;
143. }
144. return;
145. }
146.
147. var jsonData = JsonSerializer.Serialize(Data);
148.
149. // Here is the connection with the interface (verb) defined in the Angular component
150. var script = $"window.{AngularDefs.ChartVerb}({jsonData});";
151.
152. await _webView.CoreWebView2.ExecuteScriptAsync(script);
153. }
154.
155. }

Message.cs是Angular應用中click事件交互的模型。

下面是FormMain.cs中控件的用例，我們動態(tài)地添加了一個控件，并使用工具箱中的拖放功能添加了另一個控件。需要注意的是，需要一個不同的屬性名來避免WebView2會話上的沖突，這是一個陷阱。

在這個示例中使用模擬數(shù)據(jù)，但您可能會在實際應用程序中從數(shù)據(jù)源讀取數(shù)據(jù)。

1. using System.Text.Json;
2. using Telerik.WinControls;
3. using Telerik.WinControls.UI;
4.
5. namespace app_winforsm;
6.
7. public partial class FormMain : RadForm
8. {
9. private readonly AngularWebControl? _angularWebControl;
10.
11. public FormMain()
12. {
13. InitializeComponent();
14.
15. // Load the AngularWebControl programatically
16.
17. _angularWebControl = new AngularWebControl { Name = "_angularWebControl" };
18. _angularWebControl.Dock = DockStyle.Fill;
19.
20. splitPanel1.Controls.Add(_angularWebControl);
21.
22. // Subscribe to the OnChartItemClick event
23. _angularWebControl.OnChartItemClick += AngularWebControl_OnChartItemClick;
24.
25. LoadData();
26. }
27.
28. private void AngularWebControl_OnChartItemClick(object? sender, EventArgs e)
29. {
30. if (sender is null)
31. return;
32.
33. var message =
34. JsonSerializer.Deserialize<Message>(sender.ToString() ?? throw new Exception("Data is not a json."));
35.
36. RadMessageBox.ThemeName = "Windows11";
37. RadMessageBox.Show($"You clicked on {message.Category} with value {message.Value}", "Chart Item Clicked",
38. MessageBoxButtons.OK, RadMessageIcon.Info);
39. }
40.
41. private void LoadData()
42. {

注意：在生產(chǎn)項目中，您將從存儲庫加載數(shù)據(jù)！

43.
44. var data = new[]
45. {
46. new { name = "Gastroenteritis", value = 40, color = "red" },
47. new { name = "Appendicitis", value = 25, color = "blue" },
48. new { name = "Cholecystitis", value = 15, color = "green" },
49. new { name = "Pancreatitis", value = 10, color = "yellow" },
50. new { name = "Diverticulitis", value = 10, color = "orange" }
51. };
52.
53. _angularWebControl?.LoadData("Common gastro deseases in hospitals", data);
54.
55. var dataAges = new[]
56. {
57. new { name = "0-10", value = 1, color = "red" },
58. new { name = "11-20", value = 10, color = "blue" },
59. new { name = "21-30", value = 20, color = "green" },
60. new { name = "31-40", value = 25, color = "yellow" },
61. new { name = "41-50", value = 15, color = "orange" },
62. new { name = "51-60", value = 20, color = "purple" },
63. new { name = "61-70", value = 8, color = "brown" },
64. new { name = "71+", value = 7, color = "pink" }
65. };
66.
67. this.angularWebControl1.LoadData("Patiant ages in gastro deseases", dataAges);
68. }
69. }

結果

這兩個圖表共享相同的界面和UserControl，它們處于不同的web會話中。會話被隔離是為了保存數(shù)據(jù)，并且出于安全考慮，同一個UserControl可以根據(jù)作為參數(shù)傳遞的URL使用不同的憑據(jù)。

本示例的工作流程

在下面的圖片中，我們可以“看到”編碼的流程和執(zhí)行，直到回調(diào)時，最終用戶點擊圖表，從GitHub并嘗試。

關于慧都科技

慧都是?家?業(yè)數(shù)字化解決?案公司，專注于軟件、?油與?業(yè)領域，以深?的業(yè)務理解和?業(yè)經(jīng)驗，幫助企業(yè)實現(xiàn)智能化轉(zhuǎn)型與持續(xù)競爭優(yōu)勢。

慧都科技是Telerik的中國區(qū)的合作伙伴，Telerik作為用戶界面領域的優(yōu)秀產(chǎn)品，通過全棧式開發(fā)工具套件（涵蓋Web、桌面、移動端及報表服務）提供160+高性能UI組件、低代碼平臺及實時調(diào)試工具，助力企業(yè)快速構建跨平臺業(yè)務應用（如ERP、數(shù)據(jù)分析儀表盤），顯著縮短開發(fā)周期（降本50%以上）并提升數(shù)據(jù)處理與界面交互效率。