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- using System;
- using System.Collections.Generic;
- using System.Linq.Expressions;
- using System.Reflection;
- using System.Text;
- namespace VLB
- {
- public static class ReflectionUtils
- {
- public static string GetFieldPath<T, TValue>(Expression<Func<T, TValue>> expr)
- {
- MemberExpression me;
- switch (expr.Body.NodeType)
- {
- case ExpressionType.Convert:
- case ExpressionType.ConvertChecked:
- var ue = expr.Body as UnaryExpression;
- me = (ue != null ? ue.Operand : null) as MemberExpression;
- break;
- default:
- me = expr.Body as MemberExpression;
- break;
- }
- var members = new List<string>();
- while (me != null)
- {
- members.Add(me.Member.Name);
- me = me.Expression as MemberExpression;
- }
- var sb = new StringBuilder();
- for (int i = members.Count - 1; i >= 0; i--)
- {
- sb.Append(members[i]);
- if (i > 0) sb.Append('.');
- }
- return sb.ToString();
- }
- }
- }
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