C# 如何通过类名获取类类型?
我希望我的问题是清楚的。有人能帮我吗 我只允许使用这个类名的字符串形式来获取它的类型 谢谢大家。 我自己就这样解决了这个问题C# 如何通过类名获取类类型?,c#,reflection,gettype,C#,Reflection,Gettype,我希望我的问题是清楚的。有人能帮我吗 我只允许使用这个类名的字符串形式来获取它的类型 谢谢大家。 我自己就这样解决了这个问题 namespace Myspace { public class MyClass { } } //This class is in another file. using Myspace; static void Main(string[] args) { Regex regexViewModelKey = new Regex(Regul
namespace Myspace
{
public class MyClass
{
}
} //This class is in another file.
using Myspace;
static void Main(string[] args)
{
Regex regexViewModelKey = new Regex(RegularExpr.ViewModelKeyPattern);
string viewModel = regexViewModelKey.Match(match.Value).Value;
//Now, vieModel is a string, and its value is "MyClass". So, I only know the class name, this is why I ask this question.
//Now, I'm only allowed to use the string form of this class name to get its type.
//I have tyied like this, but its no use.
Type t = Type.GetType(viewModel);
//it's return a null.
//Then I tyied another method like this, but there is an exception when calling Assembly.Load
Assembly assembly = Assembly.Load("Myspace");
Type ty = assembly.GetType("Myspace" + viewModel);
}
一般来说,除非您使用反射或接口,否则几乎不需要进行类型比较。尽管如此: 如果知道要与之比较的类型,请使用
is
或as
运算符:
{
Type t = Type.GetType(string.Concat(viewModel, ",", "Myspace"));
}
as
运算符执行强制转换,如果失败而不是异常,则返回null
:
if( unknownObject is TypeIKnow ) { // run code here
如果您不知道类型,只需要运行时类型信息,请使用.GetType()
方法:
TypeIKnow typed = unknownObject as TypeIKnow;
如果使用完全限定的类名(包括其命名空间),则line Type.GetType(model)将起作用
此外,如果它位于与调用代码不同的程序集中,则当引用的程序集对象是包含该类型的程序集实例时,应使用assembly.GetType(typeName)。只需使用函数typeof()。参数就是那个类名
Type typeInformation = unknownObject.GetType();
// int is a value type
int i = 0;
// Prints True for any value of i
Console.WriteLine(i.GetType() == typeof(int));
// string is a sealed reference type
string s = "Foo";
// Prints True for any value of s
Console.WriteLine(s == null || s.GetType() == typeof(string));
// object is an unsealed reference type
object o = new FileInfo("C:\\f.txt");
// Prints False, but could be true for some values of o
Console.WriteLine(o == null || o.GetType() == typeof(object));
// Get the type of a specified class.
Type myType1 = Type.GetType("System.Int32");
Console.WriteLine("The full name is {0}.", myType1.FullName);
// Since NoneSuch does not exist in this assembly, GetType throws a TypeLoadException.
Type myType2 = Type.GetType("NoneSuch", true);
Console.WriteLine("The full name is {0}.", myType2.FullName);
// FileSystemInfo is an abstract type
FileSystemInfo fsi = new DirectoryInfo("C:\\");
// Prints False for all non-null values of fsi
Console.WriteLine(fsi == null || fsi.GetType() == typeof(FileSystemInfo));
也许这会有助于尝试这种方法string model=“Myspace.MyClass”;在标题中使用程序集限定名。我已经更改了我的问题,以便更清楚。你能再看一遍吗?仅当类型在编译时已知时。
Type type = typeof(FIXProtoClientTest);