Mar
13
2013

T-SQL Get records between main events in log file

I had an interesting request to summarize data from a log table. The request was that for each day for a given user and session id get the time for a given event type and the time for the latest event type that is not the same as the first event type.   So in the above sample data if EvenTyp... [More]
Mar
2
2010

SWE101 TDD GreeGame challenge

SWE101 TDD Greed Game Solution [More]
Feb
16
2010

Retrieving and saving images from SQL Server using RIA Services and Silverlight

In this small Silverlight project I put together what you need to be able to retrieve and save images from a SQL Database using RIA Services. [More]
Sep
30
2009

Capture rendered asp.net page

Ever needed to capture what was being rendered by a page but could not setup a test environment or could not just render the page in the live server because it is part of some e-commerce transactional workflow. Here is a simple code snippet to allow you to do that. [More]
Sep
9
2009

Running Fedora 11 in Virtual Box hosted in Windows 7

Running Fedora 11 in Virtual Box hosted in Windows 7 [More]
Sep
3
2009

Updated to BlogEngine 1.5

Updated to BlogEngine 1.5 [More]
Jul
17
2009

Silverlight 3 WriteableBitmap to Jpg

Silverlight 3 WriteableBitmap to Jpg [More]
Jun
24
2009

MS Access SQLOLEDB connection

I got a call from a client that uses an MS Access database as a front end to a SQL Server 2008 back end. Suddenly they said that they could not access the database. I knew that recently their IT department had added a domain controller and joined the server to the domain. It turned out that the Grou... [More]
Jun
5
2009

Silverlight 3 Ria Services Paging

If you start going through examples using Silverlight 3 and RIA Services you'll encounter a settle issue with the paging functionality. It took me a while to realize why it wasn't working until I experimented with the Domain Service and found some posts on the issue. Paging requires your data layer ... [More]
Mar
28
2009

ADO.Net Data Services Linq to SQL

I did a recent presentation on consuming ADO.Net Data Services with Silverlight at the Nashville .Net user's group web focus meeting. You can download the code here, AdoNetDemo.zip (1.32 mb). You'll need to change the connection string in the web.config file. You can download the NorthwindEF da... [More]

About the author

My name is Roberto Lopez. I have been working with computers since 1995. I have held various positions from sales man, help desk manager, to more recently Sr. Technical Consultant. In 2008 I started my own company, RHLopez. I enjoy this field and continue to strive to be better at it every year and to help others by passing on what I have learned.

Month List

Recent Tweets

Note: For Customization and Configuration, CheckOut Recent Tweets Documentation