反射常用功能-持续更新

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反射判断 某个对象 是否 是泛型集合的类型

public bool isCollection(object o)
{
return typeof(ICollection).IsAssignableFrom(o.GetType())
|| typeof(ICollection<>).IsAssignableFrom(o.GetType());
}

获取类实例

public static object Load(string assembly, string className)
{
return Assembly.Load(assembly).CreateInstance(className);
}

获取指定属性




代码

public static PropertyInfo GetPropertyByName(Type type, string propertyName)
{
return type.GetProperty(propertyName, BindingFlags.Public
| BindingFlags.IgnoreCase | BindingFlags.Instance | BindingFlags.GetProperty | BindingFlags.FlattenHierarchy);
}

反射创建泛型集合




代码

public static IList CreateList(Type listType)
{
//Type type = listType;
//反射创建普通对象
object o = Activator.CreateInstance(listType);
//反射创建泛型集合
Type generic = typeof(List<>);
Type[] typeArgs = { listType };
generic = generic.MakeGenericType(typeArgs);
return Activator.CreateInstance(generic) as IList;
}

反射调用方法




代码

Type dataType = Type.GetType(ClassName);
MethodInfo parseMethod = dataType.GetMethod("Parse", BindingFlags.Public | BindingFlags.IgnoreCase
| BindingFlags.Static | BindingFlags.FlattenHierarchy, null, new Type[] { typeof(string) }, null);

反射获取某个属性集合(如获取DataTable的columns属性,并且遍历它)

DataTable dtSource = (DataTable)data;
Type type = dtSource.GetType();
PropertyInfo pi = type.GetProperty("Columns");
IEnumerable listObject = (IEnumerable)pi.GetValue(dtSource, null);

反射设置属性

public static void SetPropertyValue(this PropertyInfo property, object target, object value)
{
if (null != property && property.CanWrite)
{
if (value.GetType() == typeof(string))
{
// 对换行符进行转换
value = value.ToString().Replace("//r", "/r").
Replace("//n", "/n").Replace("<br>", "/n");
}
value = GetObjectInstance(property.PropertyType, value.ToString());
property.SetValue(target, value, null);
}
}