c# - 如何更新“System.IO.Packaging”的版本？

Question

当我尝试“Microsoft's C# Tutorial”中的示例时，我收到以下错误。

CS1069
在命名空间“System.IO.Packaging”中找不到类型名称“PackageRelationship”。此类型已转发到程序集 'System.IO.Packaging, Version=4.0.5.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' 考虑添加对该程序集的引用。

这是示例代码：

...
using System.IO.Packaging;
public static class LocalExtensions
{
    public static string StringConcatenate(this IEnumerable<string> source)
    {
        StringBuilder sb = new StringBuilder();
        foreach (string s in source)
            sb.Append(s);
        return sb.ToString();
    }
    public static string StringConcatenate<T>(this IEnumerable<T> source,
    Func<T, string> func)
    {
        StringBuilder sb = new StringBuilder();
        foreach (T item in source)
            sb.Append(func(item));
        return sb.ToString();
    }
    public static string StringConcatenate(this IEnumerable<string> source, string separator)
    {
        StringBuilder sb = new StringBuilder();
        foreach (string s in source)
            sb.Append(s).Append(separator);
        return sb.ToString();
    }
    public static string StringConcatenate<T>(this IEnumerable<T> source,
    Func<T, string> func, string separator)
    {
        StringBuilder sb = new StringBuilder();
        foreach (T item in source)
            sb.Append(func(item)).Append(separator);
        return sb.ToString();
    }
}
class Program
{
    public static string ParagraphText(XElement e)
    {
        XNamespace w = e.Name.Namespace;
        return e
        .Elements(w + "r")
        .Elements(w + "t")
        .StringConcatenate(element => (string)element);
    }
    static void Main(string[] args)
    {
        const string fileName = "SampleDoc.docx";
        const string documentRelationshipType =
        "http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument";
        const string stylesRelationshipType =
        "http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles";
        const string wordmlNamespace =
        "http://schemas.openxmlformats.org/wordprocessingml/2006/main";
        XNamespace w = wordmlNamespace;
        XDocument xDoc = null;
        XDocument styleDoc = null;
        using (Package wdPackage = Package.Open(fileName, FileMode.Open, FileAccess.Read))
    ...

标签： c#

Answer 1

您将需要安装 System.IO.Packaging nuget 包。

• 右键单击您的项目
• 选择管理 Nuget 包选项
• 在浏览选项卡下搜索 System.IO.Packging。和
• 单击右侧窗格的安装按钮。