Solution to random error – “Column does not belong to table “

Posted on19. Aug, 2010 by khader.

It has been pretty painful investigating this weird problem – “Column <ColumnName> does not belong to table Table” even though we have this column in the specified table. Sometime it is just throws error – “….table ‘Table’” when there is no such table ‘Table’ in  database.
After thorough investigation many experiments, we found that the root [...]

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The property ‘ValidValues’ of report parameter doesn’t have the expected type – Design Tip

Posted on02. Jun, 2010 by khader.

During SSRS reports development, we see this error quite frequently. Most of the time we have report parameter being populated from another stored procedure. Some developers tend to format the date fields inside the stored procedure and return them. For example 
SELECT convert(varchar(10), ReportedDate, 101)  AS ReportDate  FROM TBL_REPORTS
Doing that is good and bad. Good part is that the [...]

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FIX Protocol FAQs are posted

Posted on18. May, 2009 by khader.

As requested, I have compiled good number of frequently asked questions on FIX protocol. I tried my best to answer them precisely. I have added them under Sections tab on right menu or can click here.
Feel free to write to me if you have any specific questions on this topic.
Cheers!

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HtmlGenericControl ID Property is not specified – ASP.Net (Visual Studio)

Posted on18. May, 2009 by khader.

You would see this quite often in Visual Studio (mainly 2008) while working with ASP.Net and User Controls. This is been very tricky. It is not actually a problem, but Visiual Studio could not render this control inside another page. It was kind of a pain not being able to see User control inside main [...]

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HttpException (0×80004005): The IListSource does not contain any data sources – Anatomy

Posted on05. May, 2009 by khader.

This is one of the common errors I saw when I was testing our new asp.net application recently. I asked my team, the answer was simple patch. But I wasn’t happy. I didn’t find any good explanation from anybody on internet either. I did little research. Here’s my explanation.
First, couple of points to note:

This [...]

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HttpException (0×80004005): Maximum request length exceeded.

Posted on01. May, 2009 by khader.

These days I have been developing couple of prototypes using ASP.Net. I love to use ASP.Net for quick prototypes. I am throwing some of the key issues I am facing. We connected our app to real database that has millions of rows. First thing we came across was request length exception.
HttpException (0×80004005): Maximum request length [...]

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Tooltip for GridView Column Headers (ASP.Net)

Posted on30. Mar, 2009 by khader.

I just wanted to add auto tooltips for my GridView headers. There are couple of ways but I don’t want to use javascript and wanted to use simple ‘title’ attribute. It took couple of hours to get the working code supporting sortable columns. I thought it will be very useful for others. Here’s the code and logic [...]

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Grid Computing Vs Cloud Computing

Posted on19. Mar, 2009 by khader.

Recently we started hearing a lot about these terms. They are bit confusing and not many are clear about the distinction. I tried to google it to see if there is any simple and clear explanation somewhere. But I wasn’t that lucky. So let me explain this in a simplest possible way.
Grid Computing term is [...]

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Unix Internals – 1 day Workshop

Posted on03. Feb, 2009 by khader.

Something that scares many programmer is Unix internals. I have put created this 1 day course to make it easy. It covers the Unix operating system design, architecture and various aspects just as much as you need.
You can download the course presentation here – Part 1   Part 2.
Course contents:

Unix Operating System Design
Boot Process
Shutdown Process
Process Management
Memory Management
File System
Networking 

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