使用 OpenXml 嵌入 Excel 个加载项

Question

我的团队正在为 Excel 开发 Office 365 加载项，作为项目的一部分，我们正在通过 GraphAPI 创建 Excel 文档，最终目标是已为文档设置加载项。在通过 GraphAPI 复制文档之前，我们使用 .NET OpenXml 库创建文档。

我们无法找到很多关于如何通过 OpenXml 设置加载项的资源，也无法使任何东西正常工作。我们尝试的最后一件事是复制我们找到的示例 here，但我们无法让它工作。有谁知道如何使用 OpenXml 库设置加载项？

注意：该加载项已在 Office 加载项商店中，我们有 AppSource ID 等信息。

谢谢！

Answer 1

实际上，我们将围绕此场景发布一个新示例。该示例演示如何使用 OOXML 创建 Excel 文档、嵌入您的加载项，然后将文件上传到 OneDrive。它还会创建一个链接到该文件的团队聊天。

您可以在此处试用示例：Open data from your web site in a spreadsheet in Microsoft Teams

或向我们提供有关 PR 的反馈：https://github.com/OfficeDev/PnP-OfficeAddins/pull/197

要回答有关如何嵌入加载项的问题，您需要创建一个 Web 扩展部分。我在这里复制了相关代码。请注意，这与您已经看过的 Office-OOXML-EmbedAddin 示例中的代码相同。我们将其重新用于新样本。您可以更改“自定义修改”部分，以便在加载项打开时向其提供您想要的任何自定义属性。

// Embeds the add-in into a file of the specified type.
private void EmbedAddin(SpreadsheetDocument spreadsheet)
{
   spreadsheet.DeletePart(spreadsheet.WebExTaskpanesPart);
   var webExTaskpanesPart = spreadsheet.AddWebExTaskpanesPart();
   CreateWebExTaskpanesPart(webExTaskpanesPart);
}

// Adds child parts and generates content of the specified part.
private void CreateWebExTaskpanesPart(WebExTaskpanesPart part)
{
   WebExtensionPart webExtensionPart1 = part.AddNewPart<WebExtensionPart>("rId1");
   GenerateWebExtensionPart1Content(webExtensionPart1);

   GeneratePartContent(part);
}

// Generates content of webExtensionPart1.
private void GenerateWebExtensionPart1Content(WebExtensionPart webExtensionPart1)
{
   // Add web extension containg Id for Script Lab add-in
   We.WebExtension webExtension1 = new We.WebExtension() { Id = "{635BF0CD-42CC-4174-B8D2-6D375C9A759E}" };
   webExtension1.AddNamespaceDeclaration("we", "http://schemas.microsoft.com/office/webextensions/webextension/2010/11");

   // Add store information for Script Lab add-in
   We.WebExtensionStoreReference webExtensionStoreReference1 = new We.WebExtensionStoreReference() { Id = "wa104380862", Version = "1.1.0.0", Store = "en-US", StoreType = "OMEX" };
   We.WebExtensionReferenceList webExtensionReferenceList1 = new We.WebExtensionReferenceList();

   We.WebExtensionPropertyBag webExtensionPropertyBag1 = new We.WebExtensionPropertyBag();

   // Add the property that makes the taskpane visible.
   We.WebExtensionProperty webExtensionProperty1 = new We.WebExtensionProperty() { Name = "Office.AutoShowTaskpaneWithDocument", Value = "true" };
   webExtensionPropertyBag1.Append(webExtensionProperty1);

   // CUSTOM MODIFICATION BEGIN
   // Add the property that specifies the snippet to import.
   string snippetToImportValue = string.Format("{{\"type\":\"gist\",\"id\":\"{0}\"}}", "{72189570-AE11-4207-9DEE-C8BDE4B83188}");
   We.WebExtensionProperty webExtensionProperty2 = new We.WebExtensionProperty() { Name = "SnippetToImport", Value = snippetToImportValue };
   webExtensionPropertyBag1.Append(webExtensionProperty2);
   // CUSTOM MODIFICATION END

   We.WebExtensionBindingList webExtensionBindingList1 = new We.WebExtensionBindingList();

   We.Snapshot snapshot1 = new We.Snapshot();
   snapshot1.AddNamespaceDeclaration("r", "http://schemas.openxmlformats.org/officeDocument/2006/relationships");

   webExtension1.Append(webExtensionStoreReference1);
   webExtension1.Append(webExtensionReferenceList1);
   webExtension1.Append(webExtensionPropertyBag1);
   webExtension1.Append(webExtensionBindingList1);
   webExtension1.Append(snapshot1);

   webExtensionPart1.WebExtension = webExtension1;
}

// Generates content of part.
private void GeneratePartContent(WebExTaskpanesPart part)
{
   Wetp.Taskpanes taskpanes1 = new Wetp.Taskpanes();
   taskpanes1.AddNamespaceDeclaration("wetp", "http://schemas.microsoft.com/office/webextensions/taskpanes/2010/11");

   Wetp.WebExtensionTaskpane webExtensionTaskpane1 = new Wetp.WebExtensionTaskpane() { DockState = "right", Visibility = true, Width = 350D, Row = (UInt32Value)4U };

   Wetp.WebExtensionPartReference webExtensionPartReference1 = new Wetp.WebExtensionPartReference() { Id = "rId1" };
   webExtensionPartReference1.AddNamespaceDeclaration("r", "http://schemas.openxmlformats.org/officeDocument/2006/relationships");

   webExtensionTaskpane1.Append(webExtensionPartReference1);

   taskpanes1.Append(webExtensionTaskpane1);

   part.Taskpanes = taskpanes1;
}

使用 OpenXml 嵌入 Excel 个加载项

Embedding Excel Add-Ins with OpenXml

excel

openxml

office-js