public class NGlbGlobeXComm
{
public static T GetPrivateField<T>(object instance, string fieldname)
{
BindingFlags flag = BindingFlags.Instance | BindingFlags.NonPublic;
Type type = instance.GetType();
FieldInfo field = type.GetField(fieldname, flag);
T to = default(T);
try
{
to = (T)field.GetValue(instance);
}catch(Exception e){}
return to;
}
}
public class NGlbFieldX : NObjectSafety, INGlbFieldX
{
private string mpr_org = null;
public NGlbFieldX()
{
mpr_org = new NGlbField();
}
}
如果需要获取NGlbFieldX中的mpr_org成员 使用如下语句
string fd = NGlbGlobeXComm.GetPrivateField<string>(field, "mpr_org");
即可得到。
参考:
一般而言,非公共成员是受保护的,不能被外部访问的,这些都是基于安全性考虑。可是有时,我们很想取到非公共成员的某个对象。那我们就得用到两个方法:
GetType().GetField();
GetType().GetProperty();
GetField()用来获取字段,GetProperty()用来获取属性。
protected void GV_Event_RowCommand(object sender, GridViewCommandEventArgs e) { if (e.CommandName == "gvwEventLinkButton") { //_row 前面蓝色小图标,是变量(字段), 他是私有成员 //Row 前面白色小图标,是属性 ,他是保护乘员(白色图标上有个H的区域) //是字段还是属性,根据命名也能看出来 //根据调试时查看,Row类型是GridViewRow GridViewRow row = null; System.Reflection.FieldInfo fRow = e.GetType().GetField("_row", BindingFlags.Instance | BindingFlags.NonPublic); row = fRow.GetValue(e) as GridViewRow; int rowIndex = row.RowIndex; GridViewRow row2 = null; System.Reflection.PropertyInfo pRow = e.GetType().GetProperty("Row", BindingFlags.Instance | BindingFlags.NonPublic); row2 = pRow.GetValue(e, null) as GridViewRow; int rowIndex2 = row2.RowIndex; //如果RowIndex仍然是非公成员,可以同理对row进行反射操作 } }
BindingFlags.DeclaredOnly,表示仅搜索在Type 上声明的字段,而不搜索简单继承的字段。