.net 如何读取程序集属性

.net 如何读取程序集属性,.net,reflection,assemblies,attributes,.net,Reflection,Assemblies,Attributes,在我的程序中,如何读取AssemblyInfo.cs中设置的属性: [assembly: AssemblyTitle("My Product")] [assembly: AssemblyDescription("...")] [assembly: AssemblyConfiguration("")] [assembly: AssemblyCompany("Radeldudel inc.")] [assembly: AssemblyProduct("My Product")] [assembly:

在我的程序中,如何读取AssemblyInfo.cs中设置的属性:

[assembly: AssemblyTitle("My Product")]
[assembly: AssemblyDescription("...")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("Radeldudel inc.")]
[assembly: AssemblyProduct("My Product")]
[assembly: AssemblyCopyright("Copyright @ me 2008")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]

我想向程序的用户显示其中的一些值,因此我想知道如何从主程序和我正在使用的组件程序集中加载它们。

这相当简单。你必须使用反射。您需要一个Assembly实例,该实例表示具有要读取的属性的程序集。一个简单的方法是:

typeof(MyTypeInAssembly).Assembly
然后您可以执行此操作,例如:

object[] attributes = assembly.GetCustomAttributes(typeof(AssemblyProductAttribute), false);

AssemblyProductAttribute attribute = null;
if (attributes.Length > 0)
{
   attribute = attributes[0] as AssemblyProductAttribute;
}

引用
attribute.Product
现在将为您提供在AssemblyInfo.cs中传递给属性的值。当然,如果您查找的属性可能出现多次,则GetCustomAttributes返回的数组中可能会有多个实例,但对于希望检索的组件级属性,这通常不是问题。

好,对于最初的问题,现在可能有点过时了,但无论如何,我将提出这个问题以供将来参考

如果要从部件本身内部执行此操作,请使用以下命令:

using System.Runtime.InteropServices;
using System.Reflection;

object[] customAttributes = this.GetType().Assembly.GetCustomAttributes(false);
然后,您可以遍历所有自定义属性以找到所需的属性,例如

foreach (object attribute in customAttributes)
{
  string assemblyGuid = string.Empty;    

  if (attribute.GetType() == typeof(GuidAttribute))
  {
    assemblyGuid = ((GuidAttribute) attribute).Value;
    break;
  }
}

我创建了这个使用Linq的扩展方法:

public static T GetAssemblyAttribute<T>(this System.Reflection.Assembly ass) where T :  Attribute
{
    object[] attributes = ass.GetCustomAttributes(typeof(T), false);
    if (attributes == null || attributes.Length == 0)
        return null;
    return attributes.OfType<T>().SingleOrDefault();
}
public static T GetAssemblyAttribute(this System.Reflection.Assembly)其中T:Attribute
{
object[]attributes=ass.GetCustomAttributes(typeof(T),false);
if(attributes==null | | attributes.Length==0)
返回null;
返回属性.OfType().SingleOrDefault();
}
这样你就可以方便地使用它了:

var attr = targetAssembly.GetAssemblyAttribute<AssemblyDescriptionAttribute>();
if(attr != null)
     Console.WriteLine("{0} Assembly Description:{1}", Environment.NewLine, attr.Description);
var attr=targetAssembly.GetAssemblyAttribute();
如果(attr!=null)
WriteLine(“{0}程序集描述:{1}”,Environment.NewLine,attr.Description);

好的,我试着浏览了很多资源,找到了一种方法来提取
程序集的.dll属性。LoadFrom(path)
。但不幸的是,我找不到任何好的资源。这个问题是搜索
c#get assembly attributes
的最重要的结果(至少对我来说),所以我想和大家分享我的工作

我编写了以下简单的控制台程序,以在经过数小时的努力后检索general assembly属性。在这里,我提供了代码,因此任何人都可以使用它进行进一步的参考工作

我为此使用
CustomAttributes
属性。请随意评论这种方法

代码:

using System;
using System.Reflection;

namespace MetaGetter
{
    class Program
    {
        static void Main(string[] args)
        {
            Assembly assembly = Assembly.LoadFrom("Path to assembly");

            foreach (CustomAttributeData attributedata in assembly.CustomAttributes)
            {
                Console.WriteLine(" Name : {0}",attributedata.AttributeType.Name);

                foreach (CustomAttributeTypedArgument argumentset in attributedata.ConstructorArguments)
                {
                    Console.WriteLine("   >> Value : {0} \n" ,argumentset.Value);
                }
            }

            Console.ReadKey();
        }
    }
}
样本输出:

Name : AssemblyTitleAttribute
   >> Value : "My Product"
我用这个:

public static string Title
{
    get
    {
        return GetCustomAttribute<AssemblyTitleAttribute>(a => a.Title);
    }
}
公共静态字符串标题
{
得到
{
返回GetCustomAttribute(a=>a.Title);
}
}
供参考:

using System;
using System.Reflection;
using System.Runtime.CompilerServices;



namespace Extensions
{


    public static class AssemblyInfo
    {


        private static Assembly m_assembly;

        static AssemblyInfo()
        {
            m_assembly = Assembly.GetEntryAssembly();
        }


        public static void Configure(Assembly ass)
        {
            m_assembly = ass;
        }


        public static T GetCustomAttribute<T>() where T : Attribute
        {
            object[] customAttributes = m_assembly.GetCustomAttributes(typeof(T), false);
            if (customAttributes.Length != 0)
            {
                return (T)((object)customAttributes[0]);
            }
            return default(T);
        }

        public static string GetCustomAttribute<T>(Func<T, string> getProperty) where T : Attribute
        {
            T customAttribute = GetCustomAttribute<T>();
            if (customAttribute != null)
            {
                return getProperty(customAttribute);
            }
            return null;
        }

        public static int GetCustomAttribute<T>(Func<T, int> getProperty) where T : Attribute
        {
            T customAttribute = GetCustomAttribute<T>();
            if (customAttribute != null)
            {
                return getProperty(customAttribute);
            }
            return 0;
        }



        public static Version Version
        {
            get
            {
                return m_assembly.GetName().Version;
            }
        }


        public static string Title
        {
            get
            {
                return GetCustomAttribute<AssemblyTitleAttribute>(
                    delegate(AssemblyTitleAttribute a)
                    {
                        return a.Title;
                    }
                );
            }
        }

        public static string Description
        {
            get
            {
                return GetCustomAttribute<AssemblyDescriptionAttribute>(
                    delegate(AssemblyDescriptionAttribute a)
                    {
                        return a.Description;
                    }
                );
            }
        }


        public static string Product
        {
            get
            {
                return GetCustomAttribute<AssemblyProductAttribute>(
                    delegate(AssemblyProductAttribute a)
                    {
                        return a.Product;
                    }
                );
            }
        }


        public static string Copyright
        {
            get
            {
                return GetCustomAttribute<AssemblyCopyrightAttribute>(
                    delegate(AssemblyCopyrightAttribute a)
                    {
                        return a.Copyright;
                    }
                );
            }
        }



        public static string Company
        {
            get
            {
                return GetCustomAttribute<AssemblyCompanyAttribute>(
                    delegate(AssemblyCompanyAttribute a)
                    {
                        return a.Company;
                    }
                );
            }
        }


        public static string InformationalVersion
        {
            get
            {
                return GetCustomAttribute<AssemblyInformationalVersionAttribute>(
                    delegate(AssemblyInformationalVersionAttribute a)
                    {
                        return a.InformationalVersion;
                    }
                );
            }
        }



        public static int ProductId
        {
            get
            {
                return GetCustomAttribute<AssemblyProductIdAttribute>(
                    delegate(AssemblyProductIdAttribute a)
                    {
                        return a.ProductId;
                    }
                );
            }
        }


        public static string Location
        {
            get
            {
                return m_assembly.Location;
            }
        }

    }

}
使用系统;
运用系统反思;
使用System.Runtime.CompilerServices;
命名空间扩展
{
公共静态类AssemblyInfo
{
私有静态组件m_组件;
静态汇编信息()
{
m_assembly=assembly.GetEntryAssembly();
}
公共静态无效配置(程序集ass)
{
m_组件=ass;
}
公共静态T GetCustomAttribute(),其中T:Attribute
{
object[]customAttributes=m_assembly.GetCustomAttributes(typeof(T),false);
如果(customAttributes.Length!=0)
{
返回(T)((对象)customAttributes[0]);
}
返回默认值(T);
}
公共静态字符串GetCustomAttribute(Func getProperty),其中T:Attribute
{
T customAttribute=GetCustomAttribute();
if(customAttribute!=null)
{
返回getProperty(customAttribute);
}
返回null;
}
公共静态int-GetCustomAttribute(Func-getProperty),其中T:Attribute
{
T customAttribute=GetCustomAttribute();
if(customAttribute!=null)
{
返回getProperty(customAttribute);
}
返回0;
}
公共静态版本
{
得到
{
返回m_assembly.GetName().Version;
}
}
公共静态字符串标题
{
得到
{
返回GetCustomAttribute(
代表(集合标题属性a)
{
返回a.标题;
}
);
}
}
公共静态字符串描述
{
得到
{
返回GetCustomAttribute(
委托(AssemblyDescriptionAttribute a)
{
返回a.描述;
}
);
}
}
公共静态字符串产品
{
得到
{
返回GetCustomAttribute(
委托(AssemblyProductAttribute a)
{
退货a.产品;
}
);
}
}
公共静态字符串版权
{
得到
{
返回GetCustomAttribute(
委托(属性a)
{
返回a.版权;
}
);
}
}
公共静态字符串公司
{
得到
{
返回GetCustomAttribute(
代表(大会公司属性a)
{
返回a.公司;
}
);
}
}
公共静态字符串信息版本
{
得到
{
返回GetCustomAttribute(
代表(汇编信息版本属性a)
{
返回a.InformationalVersion;
}
);
internal static 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<AssemblyConfigurationAttribute>(a => a.Configuration); } }
    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);
    }
}
internal class ApplicationData
{

    DirectoryInfo roamingDataFolder;
    DirectoryInfo localDataFolder;
    DirectoryInfo appDataFolder;

    public ApplicationData()
    {
        appDataFolder = new DirectoryInfo(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), AssemblyInfo.Product,"Data"));
        roamingDataFolder = new DirectoryInfo(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),AssemblyInfo.Product));
        localDataFolder   = new DirectoryInfo(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), AssemblyInfo.Product));

        if (!roamingDataFolder.Exists)            
            roamingDataFolder.Create();

        if (!localDataFolder.Exists)
            localDataFolder.Create();
        if (!appDataFolder.Exists)
            appDataFolder.Create();

    }

    /// <summary>
    /// Gets the roaming application folder location.
    /// </summary>
    /// <value>The roaming data directory.</value>
    public DirectoryInfo RoamingDataFolder => roamingDataFolder;


    /// <summary>
    /// Gets the local application folder location.
    /// </summary>
    /// <value>The local data directory.</value>
    public DirectoryInfo LocalDataFolder => localDataFolder;

    /// <summary>
    /// Gets the local data folder location.
    /// </summary>
    /// <value>The local data directory.</value>
    public DirectoryInfo AppDataFolder => appDataFolder;
}
string company = ((AssemblyCompanyAttribute)Attribute.GetCustomAttribute(Assembly.GetExecutingAssembly(), typeof(AssemblyCompanyAttribute), false)).Company;