How to get TableName and Key field value from an object we are using in C#

Question

I have a following like classes which i am using as model for entity framework core for one of my table. After saving i am passing the object for some sort of caching work. How can i get the TableName and the value of the field which is marked as Key (i am using single field as Key)

[Table("audit_log")]
public class AuditLog
{
    [Key]
    public long auditlog_id { get; set; }

    [Required]
    public string appname { get; set; }        
}

TableName is from System.ComponentModel.DataAnnotations.Schema Key is from System.ComponentModel.DataAnnotations

I have worked with my own custom attributes but here wanted to check if there is some buildin way of accessing these values. I have to pass the object and get tablename and value of the key

Answer 1

Thanks a lot Serge. Following is my solution at the moment

public static Tuple<bool, string, string> GetDataAnotationDetail<T>(T item) where T : class
        {
            Tuple<bool, string, string> result = null;

            var tableName = string.Empty;
            var tableAttr = item.GetType().GetCustomAttributes().FirstOrDefault() as TableAttribute;

            if (tableAttr != null)
            {
                tableName = tableAttr.Name;
            }

            var properties = item.GetType().GetProperties();
            bool breakcondition = false;
            foreach (var property in properties)
            {
                Attribute[] attrs = Attribute.GetCustomAttributes(property);
                if (attrs != null)
                {
                    foreach (Attribute attr in attrs)
                    {

                        if (attr is KeyAttribute)
                        {
                            var a = (KeyAttribute)attr;
                            var obj = property.GetValue(item, null);
                            result = Tuple.Create(true, tableName, Convert.ToString(obj));
                            breakcondition = true;
                            break;
                        }

                    }
                }
                if (breakcondition)
                {
                    break;
                }
            }

            return result;
        }