The Problem

After finally making the jump from Visual Studio 2008 to Visual Studio 2010, a project using Infragistics NetAdvantage 2008.3 started throwing the “Code generation for property ‘Image’ failed” error in Visual Studio 2010.

The NetAdvantage incompatibility with Visual Studio 2010 appears to be related to Windows Forms and making any changes to the image of the form.

The Fix

Infragistics has reported an error in some versions of it’s product with Visual Studio 2010.  It appears that NetAdvantage 2008 is not fully compatible and no patch has been provided.  Luckily I still had an upgrade for NetAdvantage 2009.1, of which after being patched / updated to the latest build works.  The standard install of Infragistics 2009.1 or 2009.2 does not work and must be patched / updated.  Check with Infragistics or download the patch directly from them from your downloads area.

Compatibility

NetAdvantage WinForms compatibility with Visual Studio 2010

• NetAdvantage 2008.x and previous versions – Not fully compatible, see error above
• NetAdvantage 2009.1 Unpatched  - Not fully compatible, see error above
• NetAdvantage 2009.1 Patched to 9.1 2094  – Compatible, fixes above error
• NetAdvantage 2009.2 Unpatched - Not fully compatible, see error above
• NetAdvantage 2009.2 Patched to 9.2 2083 - Compatible, fixes above error
• > NetAdvantage 2009.2 – Compatible

Credits

Original credit for solving this goes back to an Infragistics employee in their forums:

http://blogs.infragistics.com/forums/t/41560.aspx?PageIndex=2

I’ve tested their solution with my project and reflected the results above.  As always, back up your solution before making changes!

To select a date format, wrap your field value in a format statement

= Format(Fields!DateFieldToFormat.Value,”M/d/yyyy”)

It is as simple as that!

I recently created a SQL database that has to store files as blobs but before doing so a vb.net CLR function performs an MD5 has on the file to store with it.  Everything runs great typically except for on occassion a very large file (4MB) will come along and blow the following error, “.NET Framework execution was aborted by escalation policy because of out of memory“.

To date I’ve tried several settings on SQL Server (2005) unsuccessfully so for now the only way I’ve been able to get around this is to run this SQL command:

DBCC FREESYSTEMCACHE ('ALL')

Running the above SQL command allowed memory to be cleared so the file could be loaded.

Previous research has shown possible fixes based around MemToLeave setting of SQL Server which appears to be a major undertaking!

On occasion it is handy to have a SQL snippet to find SQL views in a database that are using a particular table, column, function, or other SQL.  Fortunately SQL Server offers several information schema views to help out.

Using the system view INFORMATION_SCHEMA.VIEWS you can query the views definition (think the SQL you used to create the view).  It is as simple as searching the system views VIEW_DEFINITION column.  See the example below:

SELECT     TABLE_NAME
FROM         INFORMATION_SCHEMA.VIEWS
WHERE VIEW_DEFINITION LIKE '%search criteria%'

Similarly you can search stored procedures using the example below:

SELECT     ROUTINE_NAME 
FROM         INFORMATION_SCHEMA.ROUTINES 
WHERE ROUTINE_DEFINITION LIKE '%search criteria%'

Applies to: MS SQL Server 2005

Scenario

On machines where Vista/W7 is installed there appears to be an issue when checking to see if a user is in a role.  User Account Control (UAC) must be on to reproduce the issue.  The result is that the value returned is always FALSE even when the user does belong to the group.

Sample Code (UAC must be on to produce error)

If My.User.IsInRole(“My Domain\My Group”) Then

     Return True

Else

     Return False

End If

Workaround

To get around this I created a function using other .Net functions.

Public Function IsInUserRole(ByVal RoleToFind As String) As Boolean

    Dim id As WindowsIdentity = WindowsIdentity.GetCurrent
    Dim irc As IdentityReferenceCollection

    ‘ Gets a SID list of groups the user belongs to

    irc = id.Groups

    For Each ir As IdentityReference In irc

        ‘ Need to convert the SID to plain english

        Dim act As NTAccount = CType(ir.Translate(Type.GetType("System.Security.Principal.NTAccount")), NTAccount)

        If act.Value = RoleToFind Then

            Return True

        End If

    Next

    Return False

End Function

Next week I’ll be attending RailsConf 09 in Las Vegas, NV. Since I’m still pretty new to Rails I’m taking one of the tutorial classes “A-Z Intro to Rails Tutorial” and the presenter has already provided info from his site. Cool!

Background

Upon continuing a Ruby on Rails project after a few months delay, Aptana Studio’s RadRails editor installed some updates.  I suspect something that  changed in Rails itself (GEM update) caused the error I received.

Error Message

undefined method `include_root_in_json=’ for ActiveRecord::Base:Class (NoMethodError)

Solution

To fix this error rename the config/initializers/new_rails_defaults.rb to config/initializers/new_rails_defaults.rb.bak.

It appears that the old code placed in these files no longer works with ROR 2.0.2.

# These settings change the behavior of Rails 2 apps and will be defaults
# for Rails 3. You can remove this initializer when Rails 3 is released.

# Include Active Record class name as root for JSON serialized output.
ActiveRecord::Base.include_root_in_json = true

# Store the full class name (including module namespace) in STI type column.
ActiveRecord::Base.store_full_sti_class = true

# Use ISO 8601 format for JSON serialized times and dates.
ActiveSupport.use_standard_json_time_format = true

# Don’t escape HTML entities in JSON, leave that for the #json_escape helper.
# if you’re including raw json in an HTML page.
ActiveSupport.escape_html_entities_in_json = false

The file now created in a new project appears as follows:

# These settings change the behavior of Rails 2 apps and will be defaults
# for Rails 3. You can remove this initializer when Rails 3 is released.

if defined?(ActiveRecord)
# Include Active Record class name as root for JSON serialized output.
ActiveRecord::Base.include_root_in_json = true

# Store the full class name (including module namespace) in STI type column.
ActiveRecord::Base.store_full_sti_class = true
end

# Use ISO 8601 format for JSON serialized times and dates.
ActiveSupport.use_standard_json_time_format = true

# Don’t escape HTML entities in JSON, leave that for the #json_escape helper.
# if you’re including raw json in an HTML page.
ActiveSupport.escape_html_entities_in_json = false

Footnotes

See  http://www.hostingrails.com/1461/dbmigrate-undefined-method-include_root_in_json for more help with this error.

Eye-tracking studies are hot in the web design world, but it can be hard to figure out how to translate the results of these studies into real design implementations. These are a few tips from eye-tracking studies that you can use to improve the design of your blog or site.

read more | digg story