Difference between revisions of "C"
From Richard's Wiki
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===== TimingScope ===== | ===== TimingScope ===== | ||
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<code> | <code> | ||
using System; | using System; | ||
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Stop(); | Stop(); | ||
} | } | ||
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public TimeSpan Elapsed | public TimeSpan Elapsed | ||
{ | { | ||
Revision as of 18:15, 26 October 2015
Get Property Name via Lambda Expression
To use it do something like this.PropertyName(()=>this.Property);
using System;
using System.Linq.Expressions;
using System.Reflection;
private string PropertyName<T>(Expression<Func<T>> property)
{
var propertyInfo = (property.Body as MemberExpression).Member as PropertyInfo;
if (propertyInfo == null)
{
throw new ArgumentException("The lambda expression 'property' should point to a valid Property");
}
var propertyName = propertyInfo.Name;
return propertyName;
}
SerializeToXml
using System.IO;
using System.Xml;
/// <summary>
/// Serializes to XML.
/// </summary>
/// <param name="firstClassElement">The first class element to serialize.</param>
/// <returns>The XML string that represents the passed first class element.</returns>
public virtual string SerializeToXml(FirstClassElementType firstClassElement)
{
string xmlData;
var memoryStream = new MemoryStream();
XmlTextWriter writer = null;
try
{
writer = new XmlTextWriter(memoryStream, Encoding.Unicode)
{
Formatting = Formatting.Indented,
Indentation = 0
};
var xmlSerializer = new XmlSerializer(typeof (FirstClassElementType));
xmlSerializer.Serialize(writer, firstClassElement);
writer.Flush();
}
finally
{
memoryStream.Seek(0, SeekOrigin.Begin);
var textReader = new StreamReader(memoryStream);
xmlData = textReader.ReadToEnd();
textReader.Close();
if (null != writer)
writer.Close();
}
return xmlData;
}
TimingScope
using System;
using System.Diagnostics;
namespace Common
{
public class TimingScope : IDisposable
{
private readonly log4net.ILog _logger;
private readonly string _name;
private readonly Stopwatch _timer;
public TimingScope(string name, log4net.ILog logger)
{
_name = name;
_logger = logger;
_timer = new Stopwatch();
}
public void Start()
{
_logger.DebugFormat("{0} starting", _name);
_timer.Start();
}
public static TimingScope StartNew(string name, log4net.ILog logger)
{
var scope = new TimingScope(name, logger);
scope.Start();
return scope;
}
public static TimeSpan Time(string name, log4net.ILog logger, Action operation)
{
using (var timer = StartNew(name, logger))
{
operation();
return timer.Elapsed;
}
}
public void Stop()
{
_timer.Stop();
_logger.DebugFormat("{0} completed in {1:0.000} s", _name, _timer.ElapsedMilliseconds / 1000.0);
}
public void Dispose()
{
Stop();
}
public TimeSpan Elapsed
{
get { return _timer.Elapsed; }
}
}
}
