我想做这样的事情:
string currPanel = "Panel"; currPanel += ".Visible"
现在,此时我有一个字符串变量,其属性名称只接受布尔值.我可以做一些这样的事情:
<data type> currPanel = true;
解决方法
支持属性和字段,但仅支持实例:
public static void SetValue(object obj,string name,object value) { string[] parts = name.Split('.'); if (parts.Length == 0) { throw new ArgumentException("name"); } PropertyInfo property = null; FieldInfo field = null; object current = obj; for (int i = 0; i < parts.Length; i++) { if (current == null) { throw new ArgumentNullException("obj"); } string part = parts[i]; Type type = current.GetType(); property = type.GetProperty(part,BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance); if (property != null) { field = null; if (i + 1 != parts.Length) { current = property.GetValue(current); } continue; } field = type.GetField(part,BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance); if (field != null) { property = null; if (i + 1 != parts.Length) { current = field.GetValue(current); } continue; } throw new ArgumentException("name"); } if (current == null) { throw new ArgumentNullException("obj"); } if (property != null) { property.SetValue(current,value); } else if (field != null) { field.SetValue(current,value); } }
使用示例:
public class Panel { public bool Visible { get; set; } } public class MyTest { public Panel Panel1 = new Panel(); public void Do() { string currPanel = "Panel1"; currPanel += ".Visible"; SetValue(this,currPanel,true); } }
和
var mytest = new Mytest(); mytest.Do();
请注意,我不支持索引器(如Panel1 [5] .something).支持int索引器是可行的(但另外30行代码).支持not-int索引器(如[“Hello”])或多键索引器(如[1,2])会非常困难.