我如何检索“AssemblyCompany”？设置（在 AssemblyInfo.cs 中）？

Question

是否可以在运行时检索该值？

我想将该值保留在一处，并在我的应用程序需要输出我的公司名称时检索它。

Answer 1

这应该可以做到：

using System.Reflection;

string company = ((AssemblyCompanyAttribute)Attribute.GetCustomAttribute(
    Assembly.GetExecutingAssembly(), typeof(AssemblyCompanyAttribute), false))
   .Company;

如果您确实想将值保留在一个位置并且解决方案中有多个程序集，您可以：

• 使用 GetEntryAssembly 而不是 GetExecutingAssembly 并设置仅在您的入口程序集中使用公司属性，或者更好：
• 使用中央程序集信息文件，请参阅 这个答案

更新
根据 @hmemcpy 的建议改进了代码，因此不再需要 [0] 。谢谢！

Answer 2

如果您想要一个很好的通用方法来获取程序集信息数据，请尝试以下操作：

public string GetAssemblyAttribute<T>(Func<T, string> value)
    where T : Attribute
{
    T attribute = (T)Attribute.GetCustomAttribute(Assembly.GetExecutingAssembly(), typeof (T));
    return value.Invoke(attribute);
}

这样您就可以调用

string title = GetAssemblyAttribute<AssemblyTitleAttribute>(a => a.Title);
string copyright = GetAssemblyAttribute<AssemblyCopyrightAttribute>(a => a.Copyright);
string version = GetAssemblyAttribute<AssemblyVersionAttribute>(a => a.Version);
string description = GetAssemblyAttribute<AssemblyDescriptionAttribute>(a => a.Description);

Answer 3

建立在 Adam Price 非常优雅的方法上 - 马克关于它不适用于版本的正确评论...提出了以下方法 - 一种用于获取当前执行的 AssemblyInfo 属性 - 一种用于获取“调用”程序集的 AssemblyInfo 属性。

将其放在我的博客上 http://lancelarsen.com/reading-values-from- assemblyinfo-cs/

/// <summary>
/// Gets the values from the AssemblyInfo.cs file for the current executing assembly
/// </summary>
/// <example>        
/// string company = AssemblyInfo.Company;
/// string product = AssemblyInfo.Product;
/// string copyright = AssemblyInfo.Copyright;
/// string trademark = AssemblyInfo.Trademark;
/// string title = AssemblyInfo.Title;
/// string description = AssemblyInfo.Description;
/// string configuration = AssemblyInfo.Configuration;
/// string fileversion = AssemblyInfo.FileVersion;
/// Version version = AssemblyInfo.Version;
/// string versionFull = AssemblyInfo.VersionFull;
/// string versionMajor = AssemblyInfo.VersionMajor;
/// string versionMinor = AssemblyInfo.VersionMinor;
/// string versionBuild = AssemblyInfo.VersionBuild;
/// string versionRevision = AssemblyInfo.VersionRevision;
/// </example>
static public class AssemblyInfo
{
    public static string Company { get { return GetExecutingAssemblyAttribute<AssemblyCompanyAttribute>(a => a.Company); } }
    public static string Product { get { return GetExecutingAssemblyAttribute<AssemblyProductAttribute>(a => a.Product); } }
    public static string Copyright { get { return GetExecutingAssemblyAttribute<AssemblyCopyrightAttribute>(a => a.Copyright); } }
    public static string Trademark { get { return GetExecutingAssemblyAttribute<AssemblyTrademarkAttribute>(a => a.Trademark); } }
    public static string Title { get { return GetExecutingAssemblyAttribute<AssemblyTitleAttribute>(a => a.Title); } }
    public static string Description { get { return GetExecutingAssemblyAttribute<AssemblyDescriptionAttribute>(a => a.Description); } }
    public static string Configuration { get { return GetExecutingAssemblyAttribute<AssemblyDescriptionAttribute>(a => a.Description); } }
    public static string FileVersion { get { return GetExecutingAssemblyAttribute<AssemblyFileVersionAttribute>(a => a.Version); } }

    public static Version Version { get { return Assembly.GetExecutingAssembly().GetName().Version; } }
    public static string VersionFull { get { return Version.ToString(); } }
    public static string VersionMajor { get { return Version.Major.ToString(); } }
    public static string VersionMinor { get { return Version.Minor.ToString(); } }
    public static string VersionBuild { get { return Version.Build.ToString(); } }
    public static string VersionRevision { get { return Version.Revision.ToString(); } }

    private static string GetExecutingAssemblyAttribute<T>(Func<T, string> value) where T : Attribute
    {
        T attribute = (T)Attribute.GetCustomAttribute(Assembly.GetExecutingAssembly(), typeof(T));
        return value.Invoke(attribute);
    }
}


/// <summary>
/// Gets the values from the AssemblyInfo.cs file for the previous assembly
/// </summary>
/// <example>
/// AssemblyInfoCalling assembly = new AssemblyInfoCalling();
/// string company1 = assembly.Company;
/// string product1 = assembly.Product;
/// string copyright1 = assembly.Copyright;
/// string trademark1 = assembly.Trademark;
/// string title1 = assembly.Title;
/// string description1 = assembly.Description;
/// string configuration1 = assembly.Configuration;
/// string fileversion1 = assembly.FileVersion;
/// Version version1 = assembly.Version;
/// string versionFull1 = assembly.VersionFull;
/// string versionMajor1 = assembly.VersionMajor;
/// string versionMinor1 = assembly.VersionMinor;
/// string versionBuild1 = assembly.VersionBuild;
/// string versionRevision1 = assembly.VersionRevision;
/// </example>
public class AssemblyInfoCalling
{
    /// <summary>
    /// Initializes a new instance of the <see cref="AssemblyInfoCalling"/> class.
    /// </summary>
    /// <param name="traceLevel">The trace level needed to get correct assembly 
    /// - will need to adjust based on where you put these classes in your project(s).</param>
    public AssemblyInfoCalling(int traceLevel = 4)
    {
        //----------------------------------------------------------------------
        // Default to "3" as the number of levels back in the stack trace to get the 
        //  correct assembly for "calling" assembly
        //----------------------------------------------------------------------
        StackTraceLevel = traceLevel;
    }

    //----------------------------------------------------------------------
    // Standard assembly attributes
    //----------------------------------------------------------------------
    public string Company { get { return GetCallingAssemblyAttribute<AssemblyCompanyAttribute>(a => a.Company); } }
    public string Product { get { return GetCallingAssemblyAttribute<AssemblyProductAttribute>(a => a.Product); } }
    public string Copyright { get { return GetCallingAssemblyAttribute<AssemblyCopyrightAttribute>(a => a.Copyright); } }
    public string Trademark { get { return GetCallingAssemblyAttribute<AssemblyTrademarkAttribute>(a => a.Trademark); } }
    public string Title { get { return GetCallingAssemblyAttribute<AssemblyTitleAttribute>(a => a.Title); } }
    public string Description { get { return GetCallingAssemblyAttribute<AssemblyDescriptionAttribute>(a => a.Description); } }
    public string Configuration { get { return GetCallingAssemblyAttribute<AssemblyDescriptionAttribute>(a => a.Description); } }
    public string FileVersion { get { return GetCallingAssemblyAttribute<AssemblyFileVersionAttribute>(a => a.Version); } }

    //----------------------------------------------------------------------
    // Version attributes
    //----------------------------------------------------------------------
    public static Version Version
    {
        get
        {
            //----------------------------------------------------------------------
            // Get the assembly, return empty if null
            //----------------------------------------------------------------------
            Assembly assembly = GetAssembly(StackTraceLevel);
            return assembly == null ? new Version() : assembly.GetName().Version;
        }
    }
    public string VersionFull { get { return Version.ToString(); } }
    public string VersionMajor { get { return Version.Major.ToString(); } }
    public string VersionMinor { get { return Version.Minor.ToString(); } }
    public string VersionBuild { get { return Version.Build.ToString(); } }
    public string VersionRevision { get { return Version.Revision.ToString(); } }

    //----------------------------------------------------------------------
    // Set how deep in the stack trace we're looking - allows for customized changes
    //----------------------------------------------------------------------
    public static int StackTraceLevel { get; set; }

    /// <summary>
    /// Gets the calling assembly attribute.
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="value">The value.</param>
    /// <example>return GetCallingAssemblyAttribute<AssemblyCompanyAttribute>(a => a.Company);</example>
    /// <returns></returns>
    private string GetCallingAssemblyAttribute<T>(Func<T, string> value) where T : Attribute
    {
        //----------------------------------------------------------------------
        // Get the assembly, return empty if null
        //----------------------------------------------------------------------
        Assembly assembly = GetAssembly(StackTraceLevel);
        if (assembly == null) return string.Empty;

        //----------------------------------------------------------------------
        // Get the attribute value
        //----------------------------------------------------------------------
        T attribute = (T) Attribute.GetCustomAttribute(assembly, typeof (T));
        return value.Invoke(attribute);
    }

    /// <summary>
    /// Go through the stack and gets the assembly
    /// </summary>
    /// <param name="stackTraceLevel">The stack trace level.</param>
    /// <returns></returns>
    private static Assembly GetAssembly(int stackTraceLevel)
    {
        //----------------------------------------------------------------------
        // Get the stack frame, returning null if none
        //----------------------------------------------------------------------
        StackTrace stackTrace = new StackTrace();
        StackFrame[] stackFrames = stackTrace.GetFrames();
        if (stackFrames == null) return null;

        //----------------------------------------------------------------------
        // Get the declaring type from the associated stack frame, returning null if nonw
        //----------------------------------------------------------------------
        var declaringType = stackFrames[stackTraceLevel].GetMethod().DeclaringType;
        if (declaringType == null) return null;

        //----------------------------------------------------------------------
        // Return the assembly
        //----------------------------------------------------------------------
        var assembly = declaringType.Assembly;
        return assembly;
    }
}