/// <summary>
/// 获取属性或字段的值
/// </summary>
/// <param name="container">原对象</param>
/// <param name="propName">属性或字段名，有参数属性为参数值</param>
/// <returns></returns>
public object CallPropertyOrField(object container, string propName)
{
Type t = container.GetType();
//此处的属性包括有参属性（索引）与无参属性（属性）
//if (propName.IndexOfAny(indexExprStartChars) < 0)
//因属性与字段均不可能以数字开头，如第一个字符为数字则直接跳过属性判断以加快处理速度
if (!char.IsDigit(propName[0]))
{
#if !NET20_NOTUSER
PropertyInfo p = DynamicHelpers.GetPropertyInfo(t, propName);
//取属性
if (p != null)
{
return(p.GetValue(container, null));
}
#if NEEDFIELD
//取字段
FieldInfo f = t.GetField(propName, BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static | _bindingIgnoreCase);
if (f != null)
{
return(f.GetValue(container));
}
#endif
#else
System.Linq.Expressions.MemberExpression exp;
#if NEEDFIELD
exp = System.Linq.Expressions.Expression.PropertyOrField(System.Linq.Expressions.Expression.Constant(container), propName);
#else
exp = System.Linq.Expressions.Expression.Property(System.Linq.Expressions.Expression.Constant(container), propName);
#endif
if (exp != null)
{
return(System.Linq.Expressions.Expression.Lambda(exp).Compile().DynamicInvoke());
}
#endif
}
return(null);
}
/// <summary>
/// Gets the property or field value of the object.
/// </summary>
/// <param name="container">The object.</param>
/// <param name="type">The type of the object.</param>
/// <param name="name">The property or field name. </param>
/// <returns></returns>
public static object CallPropertyOrField(object container, string name, Type type = null)
{
Type t = type ?? container.GetType();
if (!char.IsDigit(name[0]))
{
#if !NET20_NOTUSER
PropertyInfo p = DynamicHelpers.GetPropertyInfo(t, name);
//Property
if (p != null)
{
return(p.GetValue(container, null));
}
#if NEEDFIELD
//Field
FieldInfo f = t.GetField(name, BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static | BindingFlags.IgnoreCase);
if (f != null)
{
return(f.GetValue(container));
}
#endif
#else
System.Linq.Expressions.MemberExpression exp;
#if NEEDFIELD
exp = System.Linq.Expressions.Expression.PropertyOrField(System.Linq.Expressions.Expression.Constant(container), name);
#else
exp = System.Linq.Expressions.Expression.Property(System.Linq.Expressions.Expression.Constant(container), name);
#endif
if (exp != null)
{
return(System.Linq.Expressions.Expression.Lambda(exp).Compile().DynamicInvoke());
}
#endif
}
return(null);
}
