/// <summary>
/// Try Get Generic CustomAttribute field by Attribute Name And Field Name return null if there no custom attribute or field
/// </summary>
/// <typeparam name="T">Generic of the result</typeparam>
/// <param name="o">Object to heck custom attribute property</param>
/// <param name="attributeName">the attribute checked</param>
/// <param name="name">attribute property name</param>
/// <param name="getField">switch check field attribute if the object is Enum. </param>
/// <returns></returns>
/// <returns>switch check field attribute if the object is Enum. </returns>
public static T GetObjectAttribute <T>(this Object o, string attributeName, string name, bool getField = true)
{
var customeAttribute = o.GetObjectCustomAttribute(getField)
.Where(b => b.AttributeType.Name == attributeName).FirstOrDefault();
if (customeAttribute == null)
{
return(default(T));
}
var names = customeAttribute.NamedArguments.Where(b => b.MemberName == name).FirstOrDefault();
if (names == null || names.TypedValue == null || names.TypedValue.Value == null)
{
return(default(T));
}
return((T)names.TypedValue.Value);
}
/// <summary>
/// Try Get List Generic CustomAttribute field by Attribute Name And Field Name return null if there no custom attribute or field
/// </summary>
/// <typeparam name="T">Generic of the result</typeparam>
/// <param name="o">Object to heck custom attribute property</param>
/// <param name="attributeName">the attribute checked</param>
/// <param name="name">attribute property name</param>
/// <param name="getField">switch check field attribute if the object is Enum. </param>
/// <returns></returns>
public static IEnumerable <T> GetObjectAttributes <T>(this Object o, string attributeName, string name, bool getField = true)
{
var customeAttribute = o.GetObjectCustomAttribute(getField)
.Where(b => b.AttributeType.Name == attributeName).FirstOrDefault();
if (customeAttribute == null)
{
return(Enumerable.Empty <T>());
}
var names = customeAttribute.NamedArguments.Where(b => b.MemberName == name).FirstOrDefault();
if (names == null || names.TypedValue == null || names.TypedValue.Value == null)
{
return(Enumerable.Empty <T>());
}
var types = ((System.Collections.ObjectModel.ReadOnlyCollection <System.Reflection.CustomAttributeTypedArgument>)names.TypedValue.Value)
.Select(b => (T)b.Value).ToArray();
return(types);
}
/// <summary>
/// get DisplayAttribute from input object
/// </summary>
/// <param name="o">object to get DisplayAttribute</param>
/// <param name="getField"></param>
/// <returns>switch check field attribute if the object is Enum. </returns>
public static DisplayAttribute GetObjectDisplayAttribute(this Object o, bool getField = true)
{
return(o.GetObjectCustomAttribute <DisplayAttribute>(getField));
}