本文整理汇总了C#中System.Reflection.Emit.CustomAttributeBuilder类的典型用法代码示例。如果您正苦于以下问题：C# CustomAttributeBuilder类的具体用法？C# CustomAttributeBuilder怎么用？C# CustomAttributeBuilder使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
CustomAttributeBuilder类属于System.Reflection.Emit命名空间，在下文中一共展示了CustomAttributeBuilder类的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: ClassCreator
//引入命名空间
using System;
using System.Threading;
using System.Reflection;
using System.Reflection.Emit;
// We will apply this custom attribute to our dynamic type.
public class ClassCreator: Attribute
{
private string creator;
public string Creator
{
get
{
return creator;
}
}
public ClassCreator(string name)
{
this.creator = name;
}
}
// We will apply this dynamic attribute to our dynamic method.
public class DateLastUpdated: Attribute
{
private string dateUpdated;
public string DateUpdated
{
get
{
return dateUpdated;
}
}
public DateLastUpdated(string theDate)
{
this.dateUpdated = theDate;
}
}
class MethodBuilderCustomAttributesDemo
{
public static Type BuildTypeWithCustomAttributesOnMethod()
{
AppDomain currentDomain = Thread.GetDomain();
AssemblyName myAsmName = new AssemblyName();
myAsmName.Name = "MyAssembly";
AssemblyBuilder myAsmBuilder = currentDomain.DefineDynamicAssembly(
myAsmName, AssemblyBuilderAccess.Run);
ModuleBuilder myModBuilder = myAsmBuilder.DefineDynamicModule("MyModule");
// First, we'll build a type with a custom attribute attached.
TypeBuilder myTypeBuilder = myModBuilder.DefineType("MyType",
TypeAttributes.Public);
Type[] ctorParams = new Type[] { typeof(string) };
ConstructorInfo classCtorInfo = typeof(ClassCreator).GetConstructor(ctorParams);
CustomAttributeBuilder myCABuilder = new CustomAttributeBuilder(
classCtorInfo,
new object[] { "Joe Programmer" });
myTypeBuilder.SetCustomAttribute(myCABuilder);
// Now, let's build a method and add a custom attribute to it.
MethodBuilder myMethodBuilder = myTypeBuilder.DefineMethod("HelloWorld",
MethodAttributes.Public,
null,
new Type[] { });
ctorParams = new Type[] { typeof(string) };
classCtorInfo = typeof(DateLastUpdated).GetConstructor(ctorParams);
CustomAttributeBuilder myCABuilder2 = new CustomAttributeBuilder(
classCtorInfo,
new object[] { DateTime.Now.ToString() });
myMethodBuilder.SetCustomAttribute(myCABuilder2);
ILGenerator myIL = myMethodBuilder.GetILGenerator();
myIL.EmitWriteLine("Hello, world!");
myIL.Emit(OpCodes.Ret);
return myTypeBuilder.CreateType();
}
public static void Main()
{
Type myType = BuildTypeWithCustomAttributesOnMethod();
object myInstance = Activator.CreateInstance(myType);
object[] customAttrs = myType.GetCustomAttributes(true);
Console.WriteLine("Custom Attributes for Type 'MyType':");
object attrVal = null;
foreach (object customAttr in customAttrs)
{
attrVal = typeof(ClassCreator).InvokeMember("Creator",
BindingFlags.GetProperty,
null, customAttr, new object[] { });
Console.WriteLine("-- Attribute: [{0} = \"{1}\"]", customAttr, attrVal);
}
Console.WriteLine("Custom Attributes for Method 'HelloWorld()' in 'MyType':");
customAttrs = myType.GetMember("HelloWorld")[0].GetCustomAttributes(true);
foreach (object customAttr in customAttrs)
{
attrVal = typeof(DateLastUpdated).InvokeMember("DateUpdated",
BindingFlags.GetProperty,
null, customAttr, new object[] { });
Console.WriteLine("-- Attribute: [{0} = \"{1}\"]", customAttr, attrVal);
}
Console.WriteLine("---");
Console.WriteLine(myType.InvokeMember("HelloWorld",
BindingFlags.InvokeMethod,
null, myInstance, new object[] { }));
}
}