c# et al: 2007

Tuesday, December 11, 2007

On Microsoft

Some intresting Webcasts http://www.informit.com/podcasts/channel.aspx?c=3761c00b-ef8f-4385-9b08-a6e1c7a9a35f&rl=1

Tuesday, November 20, 2007

Ebay Architecture presentation

http://www.addsimplicity.com.nyud.net:8080/downloads/eBaySDForum2006-11-29.pdf

Sunday, October 28, 2007

Domain driven design

Reading the book Applying Domain-Driven Design and Patterns by Jimmy Nilsson
and are gathering links and commens in this blogpost

Ben Scherman has a good article serie about doing a project using Domain-Driven Design and Nhibernate

10 tips about using Hibernate

Repostory
Repository, the Foundation of Domain Driven Design
Persistence Last
Evans model-to-work

Value Objects

LINQ
LINQ to SQL comment
Non-scalar Value Objects aka "Complex Types"

Wednesday, October 17, 2007

Sharepoint performance

http://msdn2.microsoft.com/en-us/library/bb687949.aspx#WSS3CodingSharePointOM_CachingDataandObjects

Wednesday, September 19, 2007

Coalesce

Coalesce goes C# « Only Talking Sense

... the null-coalescing operator in C# 2.0.

string name = (userName == null? “” : userName);

There’s nothing wrong with this code ....but the ternary operator ?
you can now write

string name = userName ?? “”;

Wednesday, August 08, 2007

Sharepoint Solution Installer

http://blog.mondosoft.com/ontolica/archive/2007/03/14/Generic-SharePoint-2007-Solution-Installer.aspx

Install a MOSS development environment

SharePoint Visual Studio Project Templates

Application Templates for Windows SharePoint Services 3.0

Preparation Guide for Exam 70-541
TS: Microsoft Windows SharePoint Services 3.0 - Application Development

Sunday, July 15, 2007

Subversion

PDF http://svnbook.red-bean.com/nightly/en/svn-book.pdf

Subversion on Windows quick start

C:\mgns\Visual Studio 2005\Projects> svn import RegAdmin file:///c:/regadminrepos -m "Initial Import"

C:\mgns\Visual Studio 2005\Projects> svn checkout file:///C:\regadminrepos "file://C:\mgns\Visual Studio 2005\Projects\RegAdmin"

Wednesday, July 04, 2007

The speed of the net is sick

http://en.wikinews.org/wiki/Death_of_Nancy_Benoit_rumour_posted_on_Wikipedia_hours_prior_to_body_being_found

Wednesday, June 27, 2007

Build problem VS

See http://blogs.claritycon.com/blogs/gary_farr/archive/2007/03/09/2888.aspx

Thursday, May 24, 2007

Java Persistence API v1.0 (JPA)

http://www.cornerstone.se/expertzone/dev07/sessions_java.aspx

Declarative mappingFramework APIQuery LanguageTransaction Support
Entiteter: skall vara rena
ORM: Håller det hela i synk
Tjänster

Transparent Persitance

JPA 1.0 Declarative Object Relational Mapping
1. Classes are mapped to tables
2. Fields are mapped to columns
3. All types of relationships are supported
4. Support for embedded objects
5. Use either annotation or deployement descriptors

Laxy loading potentiellt problem med många sm@a
Eager loading kan ge stora SQL statements
Guideline Use laxy on relations and "fetch join" on queries
(Select * from Employee e LEFT JOIN FETCH e. phoneNumbers WHERE )

Contructor expressions in queries

Buld update delete

Valideringar - Lifecycle Callback

Wednesday, May 09, 2007

Excel macro

Problem Fylla alla tomma celler i vald range i Excel med dom ovanfor.

Losning
Macro se
http://www.mvps.org/dmcritchie/excel/fillempt.htm

Monday, May 07, 2007

Produktivitet

Nice links

http://wiki.davidseah.com/public:article_cat1#productivity

Ask Men
Turning Goals into Actions

Getting Things Done GTD

Getting things done
A survey of the Get Things Done Landscape Apps
Getting Things Done: The Art of Stress-Free Productivity Summary
Blog om GTD

Software
MindManager Pro http://www.mindjet.com/eu/

Monday, April 16, 2007

Updated Nhibernet article

NHibernate Best Practices with ASP.NET, 1.2nd Ed. - The Code Project - ASP.NET

NHibernate Best Practices with ASP.NET, 1.2nd Ed

OO Design Principle metrics

http://www.parlezuml.com/metrics/OO%20Design%20Principles%20&%20Metrics.pdf

http://www.objectmentor.com/resources/articles/CoffeeMaker.pdf

http://www.objectmentor.com/resources/publishedArticles.html

http://www.objectmentor.com/resources/articles/Principles_and_Patterns.pdf

http://www.objectmentor.com/resources/downloads.html

Wednesday, April 11, 2007

Best Practise in error handling webparts in Sharepoint 2007

Uploaded as an article to CodeProject
http://www.codeproject.com/useritems/Errorhandling_in_Webparts.asp

When installing a webpart in Sharepoint 2007 you need to have some kind of model how to handle errors. This is the approach I have used.

The entry points in the code are

1. CreateChildControls
Called by the ASP.NET page framework to notify server controls that use composition-based implementation to create any child controls they contain in preparation for posting back or rendering.

2. Render
Renders the control to the specified HTML writer.

The problem is that the user should get somekind of feedback in a readable format telling him OOhps the secound problem is how to communicate this to the System Administrator

My Approach

a) Create a private variable to store the Exception
private Exception childException = null;

b) In CreateChildControls have a try/catch and catch the error in the childException variable
try{
base.CreateChildControls();
.....}
catch (Exception exp)
{
HttpContext ctx = HttpContext.Current;
ctx.Trace.Warn(ex.ToString());
childException = ex;
}
c) In Render check if the have a try/catch and catch the error in the childException variable
and then display the result in the page by using labels..

protected override void Render(System.Web.UI.HtmlTextWriter writer)
{
if (childException != null)
displayErrorMsg(writer, childException);
try
{...
...
...

}
catch (Exception ex)
{
displayErrorMsg(writer, ex);
}

where

private void displayErrorMsg(HtmlTextWriter writer, Exception ex)
{
this.Controls.Clear();
this.Controls.Add(new LiteralControl(ex.Message));
if (ex.InnerException != null)
{
this.Controls.Add(new LiteralControl(ex.InnerException.Message));
}
this.Controls.Add(new LiteralControl());
base.Render(writer);
HttpContext ctx = HttpContext.Current;
ctx.Trace.Warn(ex.ToString());
}