public static List <TEntry> ToList <TEntry>(this DataTable dataTable)
where TEntry : new()
{
var type = typeof(TEntry);
var columns = dataTable.Columns;
var actions = new Dictionary <string, Action <object, object> >();
foreach (DataColumn c in columns)
{
var columnName = c.ColumnName;
var action = DynamicPropertyAccessor.CreateSetPropertyValueAction
(
typeof(TEntry)
, columnName
);
actions[columnName] = action;
}
List <TEntry> list = null;
var rows = dataTable.Rows;
foreach (DataRow r in rows)
{
var entry = new TEntry();
if (list == null)
{
list = new List <TEntry>();
}
foreach (DataColumn c in columns)
{
var columnName = c.ColumnName;
var v = r[columnName];
if (!DBNull.Value.Equals(v))
{
var action = actions[columnName];
action(entry, v);
}
}
list.Add(entry);
}
return(list);
}
private static Dictionary <string, PropertyAccessor> GetTypePropertiesAccessors(Type type)
{
var properties = type.GetProperties();
Dictionary <string, PropertyAccessor> dictionary = null;
Array.ForEach
(
properties
, (x) =>
{
if (
_typesWhiteList.Any
(
(xx) =>
{
return(xx == x.PropertyType);
}
)
)
{
var accessor = new PropertyAccessor()
{
Getter = DynamicPropertyAccessor.CreateGetPropertyValueFunc(type, x.Name)
,
Setter = DynamicPropertyAccessor.CreateSetPropertyValueAction(type, x.Name)
,
Property = x
};
if (dictionary == null)
{
dictionary = new Dictionary <string, PropertyAccessor>();
}
dictionary.Add(x.Name, accessor);
}
}
);
return(dictionary);
}
public static void AttachPerformanceCountersToProperties <T>
(
string performanceCounterInstanceName
, string category
, T target //= default(T)
)
{
var type = typeof(T);
var propertiesList = type.GetProperties().ToList();
propertiesList = propertiesList
.Where
(
(pi) =>
{
var parameters = pi.GetIndexParameters();
return
(
pi.PropertyType == typeof(PerformanceCounter) &&
(parameters == null ? 0 : parameters.Length) <= 0
);
}
).ToList();
if (PerformanceCounterCategory.Exists(category))
{
propertiesList
.ForEach
(
(pi) =>
{
if (PerformanceCounterCategory.CounterExists(pi.Name, category))
{
if (PerformanceCounterCategory.InstanceExists(performanceCounterInstanceName, category))
{
//var pc = new PerformanceCounter(category, pi.Name, instanceName, false);
//pc.InstanceName = instanceName;
//pc.RemoveInstance();
}
}
}
);
//PerformanceCounterCategory.Delete(category);
}
if (!PerformanceCounterCategory.Exists(category))
{
var ccdc = new CounterCreationDataCollection();
propertiesList
.ForEach
(
(pi) =>
{
var propertyName = pi.Name;
var performanceCounterType = PerformanceCounterType.NumberOfItems64;
var performanceCounterName = propertyName;
var attribute
= pi
.GetCustomAttributes(false)
.FirstOrDefault
(
(x) =>
{
return
(x as PerformanceCounterDefinitionAttribute
!= null);
}
) as PerformanceCounterDefinitionAttribute;
if (attribute != null)
{
var counterName = attribute.CounterName;
if (!string.IsNullOrEmpty(counterName))
{
performanceCounterName = counterName;
}
var counterType = attribute.CounterType;
//if (counterType != null)
{
performanceCounterType = counterType;
}
}
var ccd = PerformanceCountersHelper
.GetCounterCreationData
(
performanceCounterName
, performanceCounterType
);
ccdc.Add(ccd);
}
);
PerformanceCounterCategory
.Create
(
category
, string.Format("{0} Category Help.", category)
, PerformanceCounterCategoryType.MultiInstance
, ccdc
);
}
propertiesList.ForEach
(
(pi) =>
{
var propertyName = pi.Name;
var performanceCounterType = PerformanceCounterType.NumberOfItems64;
var performanceCounterName = propertyName;
var attribute
= pi
.GetCustomAttributes(false)
.FirstOrDefault
(
(x) =>
{
return
(x as PerformanceCounterDefinitionAttribute
!= null);
}
) as PerformanceCounterDefinitionAttribute;
if (attribute != null)
{
var counterName = attribute.CounterName;
if (!string.IsNullOrEmpty(counterName))
{
performanceCounterName = counterName;
}
var counterType = attribute.CounterType;
//if (counterType != null)
{
performanceCounterType = counterType;
}
}
var pc = new PerformanceCounter()
{
CategoryName = category
,
CounterName = performanceCounterName
,
InstanceLifetime = PerformanceCounterInstanceLifetime.Process
,
InstanceName = performanceCounterInstanceName
,
ReadOnly = false
,
RawValue = 0
};
if (pi.GetGetMethod().IsStatic)
{
var setter = DynamicPropertyAccessor
.CreateSetStaticPropertyValueAction <PerformanceCounter>
(
type
, propertyName
);
setter(pc);
}
else
{
if (target != null)
{
var setter = DynamicPropertyAccessor
.CreateSetPropertyValueAction <PerformanceCounter>
(
type
, propertyName
);
setter(target, pc);
}
}
}
);
}
