这是Oliver Hanappi在 stackoverflow 上发布的静态反射代码
private static string GetMemberName(Expression expression)
{
switch (expression.NodeType)
{
case ExpressionType.MemberAccess:
var memberExpression = (MemberExpression)expression;
var supername = GetMemberName(memberExpression.Expression);
if (String.IsNullOrEmpty(supername))
return memberExpression.Member.Name;
return String.Concat(supername, '.', memberExpression.Member.Name);
case ExpressionType.Call:
var callExpression = (MethodCallExpression)expression;
return callExpression.Method.Name;
case ExpressionType.Convert:
var unaryExpression = (UnaryExpression)expression;
return GetMemberName(unaryExpression.Operand);
case ExpressionType.Parameter:
return String.Empty;
default:
throw new ArgumentException("The expression is not a member access or method call expression");
}
}
我有公共包装方法:
public static string Name<T>(Expression<Action<T>> expression)
{
return GetMemberName(expression.Body);
}
public static string Name<T>(Expression<Func<T, object>> expression)
{
return GetMemberName(expression.Body);
}
然后添加了我自己的方法快捷方式
public static string ClassMemberName<T>(this T sourceType,Expression<Func<T,object>> expression)
{
return GetMemberName(expression.Body);
}
public static string TMemberName<T>(this IEnumerable<T> sourceList, Expression<Func<T,object>> expression)
{
return GetMemberName(expression.Body);
}
哪些代码示例需要或利用GetMemberName(Expression expression)
交换机中的不同分支?这段代码能够进行强类型化的全部内容是什么?