John Stagich's Blog

Microsoft .Net Developer

December 2009 Quick Hits

clock December 16, 2009 11:06 by author johnstagich
SELECT email,
COUNT(email) AS NumOccurrences
FROM users
GROUP BY emailHAVING ( COUNT(email) > 1 )

 

You could also use this technique to find rows that occur exactly once:

SELECT email
FROM users
GROUP BY email
HAVING ( COUNT(email) = 1 )
 


November 2009 Quick Hits

clock November 17, 2009 13:06 by author johnstagich

 

  • I was working with an .csv (comma separated variable) file in Excel.  When saving the document, a column that had numeric data, had the leading zero truncated.  That is, the data was entered as 05, but was saved with only the 5.  The reason for this is because Excel sees that data as numeric, and treats it as such, even though I wanted it to be treated as a text field.   The solution to this problem is to format the cells in the column with a Custom Format.  Highlight the column, and press Ctrl+1.  The Format Cells dialog box appears.  In the Number tab, underneath Category:, select Custom.  In the Type: box, enter 00 (or however many digits you would like to keep).  Save the file.

  • Here is a good T-SQL link for formatting dates: http://anubhavg.wordpress.com/2009/06/11/how-to-format-datetime-date-in-sql-server-2005/


Silverlight 3 FireStarter

clock September 18, 2009 12:56 by author johnstagich

Yesterday, I watch quite a bit of the Microsoft Silverlight 3 FireStarter Event.  The videos for this event should be available shortly, but for the time being; here is a link to the slides. 

Presenters included : 

  • Scott Guthrie (Key Note)
  • Tim Heuer (Top Features and Scenarios)
  • Adam Kinney (Expression Blend)
  • Janete Perez (SketchFlow)
  • Marco Matos (Toolkit and Controls)
  • Brad Abrams (Silverlight Example with RIA Services)  Excellent!
  • Karl Shifflett (XAML Power Toys 5 [will be available this Sunday at 7:00 p.m. PST,  go to Karl's blog])  

Some good links:  



Expression Blend: How to add behavior from Microsoft Expression Gallery

clock September 12, 2009 12:11 by author johnstagich

I was working with SketchFlow in Microsoft Exression Blend.  There was a DragDropItem behavior that I wanted to add to my behaviors.  From the Microsoft Expression Blend Help, here is how you go about adding a behavior created by someone else.  Here the link to the information.

To add interactivity to your application without having to write code, you can drag a behavior from the Assets panel onto an object in your application and then set the properties of the behavior. You can also use behaviors that are created by people in the Microsoft Expression Blend community. For example, you can download custom behaviors from the Microsoft Expression Gallery. If you want to use a behavior that was created by someone else, add a reference to the .dll file or project that contains the behavior. This will make the behavior available in the Assets panel.

Note:

Developers can use the new Expression Blend Software Development Kit (SDK) to create custom behaviors. To view the SDK documentation, click Expression Blend SDK User Guide on the Help menu.

To add a behavior that was created by someone else

  1. Add a reference to the .dll file or project that contains the custom behavior.   From the Project Window, right mouse click on the Project to get the project menu, click Add Reference... to add an assembly (.dll or .exe) to your project.

  2. Build your project (CTRL+SHIFT+B or F5).

  3. Open the Assets panel to view the custom behavior in the Behaviors category.

    You can now drag the behavior onto objects in your application.

     

To make a custom behavior always show up in the Assets panel

If you download an assembly that contains multiple behaviors that you think you will use frequently, you can register the assembly to make the behaviors available to any project you create without having to add a reference.

  1. Do one of the following (Note: the documentation registry path says HKEY_CURRENT_USER\Software\...,  I found it in HKEY_LOCAL_MACHINE\Software... [I am running on Vista]): 

    • For a behavior that is written for Microsoft Silverlight, create a registry subkey in \HKEY_CURRENT_USER\Software\Microsoft\Expression\Blend\v3.0\Toolbox\Silverlight\v3.0 that is named the same as the assembly namespace.

    • For a behavior that is written for Windows Presentation Foundation (WPF), create a registry subkey in \HKEY_CURRENT_USER\Software\Microsoft\Expression\Blend\v3.0\Toolbox\WPF\v3.0 that is named the same as the assembly namespace.

  2. In the subkey, create a default string value and set it to the path of your assembly.



September 2009 Quick Hits

clock September 8, 2009 08:23 by author johnstagich
  • Frank La Vigne has a great link to learning SketchFlow in Microsoft Expresssion Blend.  The tutorial is comprised of videos, documentation, and code.

  • When working with Microsoft Blend 3.0/SketchFlow, the Assests->Styles->SketchStyles were missing.  Here is a link to the fix.  Go to Chuck Hays entry on July 22, 2009.  I had to add two entries into the registry.

  • From Joe Stagner's blog, Telerik has introducted two FREE Team Foundation Server (TFS) contrls.  They are TFS Work Item Manager and TFS project dashboard.  Here is the Telerik link.

  • Microsoft Web Platform "offers a complete ecosystem for building and hosting web sites, services, and applications."  Note: When installing the Silverlight 3 Tools, close the rest of your applications.

  • Here is a great site for Cheat Sheets for Developers.  It is called Refcardz DZone.


Adding a Local SSRS Report to WPF Application

clock August 20, 2009 07:34 by author johnstagich

On a previous Windows Forms application, I used the ReportViewer control to display the output of local SQL Server Reporting Services (SSRS) reports in my application.  Unfortunately, there is no native WPF Report Viewer control with similar functionality and there will not be one in .Net 4.0 (according to Jamie Rodriguez at Microsoft).  Anyway, the workaround is to use the WinForms ReportViewer control within WPF.  Below is the code that I used.  I had two WPF Windows that I was working with Windows1.xaml and ReportViewer.xaml.  The ReportViewer Window is where I wanted the output of the report to go.  The name of the report file was rptLocations.rdlc.

// Here is the link where I found the code for this routine (Thanks Sayor!):
// http://sayor.blogspot.com/2008/08/report-viewer-in-wpf-application.html

// Add References: Microsoft.ReportVIewer.Common, Microsoft.ReportViewer.WInForms. 

// Add Using statements
using System.Windows.Forms.Integration;
using Microsoft.Reporting.WinForms;

// Get report data
ObservableCollection<BELocation> locationList = new ObservableCollection<BELocation>();
locationList = objLocation.GetAllLocations();

// Create instance of WindowsFormsHost to integrate the report viewer control with the WPF form.
WindowsFormsHost host = new WindowsFormsHost();

// Create instance of Report Viewer Control
Microsoft.Reporting.WinForms.ReportViewer reportViewer = new Microsoft.Reporting.WinForms.ReportViewer();

// Create instance of ReportViewer.xaml Window. This window will contain the output of the report.
Window win = new ReportViewer();

// Specifying local processing mode for the ReportViewer
reportViewer.ProcessingMode = ProcessingMode.Local;

// Specifying the location of the report definition file.  Use the command below, if you set "Copy to Output Directory" property to one of the
// copy options (Copy Always, Copy if newer) for the rptLocations.rdlc file.

       //reportViewer.LocalReport.ReportPath = "rptLocations.rdlc";

// reportViewer1.LocalReport.ReportEmbeddedResource = "<application namespace>.[optional <folder>].<filename.rdlc>

reportViewer.LocalReport.ReportEmbeddedResource = "StagichSoftwareConsulting.WPF_LineOfBusiness.rptLocations.rdlc";

// Create a new ReportDataSource with the name of the DataSource and the object  that is to be used as the DataSource
ReportDataSource ds = new ReportDataSource("BELocation", locationList);

// Add the ReportDataSource to the DataSoure of the ReportViewer
reportViewer.LocalReport.DataSources.Add(ds);

// Causes the current report in the Report Viewer to be processed and rendered.
reportViewer.RefreshReport();

// Sets the child control hosted by the WindowsFormsHost element.
host.Child = reportViewer;

 // Add the WindowsFormsHost element to the Grid in the ReportViewer.xaml
Grid rGrid = (Grid) win.FindName("gridReportViewer");
rGrid.Children.Add(host);

win.ShowDialog();

          



Choose Items Crashes Visual Studio 2008 SP1 Fix

clock August 18, 2009 11:51 by author johnstagich

I wanted to add some controls to my Toolbox in Visual Studio 2008 SP1 IDE.  I right mouse click on the Toolbox and select Choose Items...   It crashed the system.  I did a goolge search and it suggested removing Power Toys.  I checked and my Power Toys were already removed.

I found another suggestion.  Start Visual Studio in safemode and try to add the controls.  To start in Safemode, get to a Visual 2008 command prompt (Programs->Microsoft Visual Studio 2008->Visual Studio Tools->Visual Studio 2008 Command Prompt).  At the command line enter: devenv /safemode.

While in SafeMode, I added the controls.  They did NOT show up in the toolbox; however, when I restarted VS 2008 "normally," the commands apppeared in the Toolbox.

Here is the link where I found the solution: http://forums.asp.net/p/1222006/2570302.aspx#2570302

 



Vista Service Pack 2 Problems / Backup Restores

clock August 17, 2009 09:01 by author johnstagich

After experiencing other difficulties following the aftermath of my Vista Service Pack 2 failed install, I decided to restore to a computer backup I had made about a month before.  (Vista Ultimate has this feature.)  I booted up, tapped the F8 key, and executed the “Repair Your Computer.”  I then selected the restore from computer backup option.  It worked like a charm.  In less than an hour, I was back up and running, plus I picked up about 20 GB in disk space!

 

I then wanted to restore my files from a file backup I had done a few days previously.  Since I had already restored from a computer backup, the file backup became “confused” because the information about my last file backup was wiped out during the computer backup.   Hence, I could not easily restore my latest files from my file backup because the computer could not find the latest backup set on my backup drive.  Fortunately, before performing the computer restore, I manually copied my important files to an external hard drive.  Therefore, instead of continuing to play with the file restore, I manually restored my important files.

 

When I now perform my backups, I will do the Backup Files procedure first, followed by the Backup Computer procedure.  That way if I have to restore from the computer backup, the information about the latest file backup will be there.



Vista Service Pack 2 Install Has Major Problems / Bugs

clock August 5, 2009 10:09 by author johnstagich

I decided to install Vista Service Pace 2.  The install was proceeding smoothly until my machine rebooted and came up with a black screen with scrolling information.  It then appeared to get stuck trying do some work on the registry:  0xc01a001d 17532/46599 (\Registry\Machine\Components\DerivedData...).  The install instructions said not to reboot your computer during the upgrade process.  So, I left the machine alone and came back awhile later, figuring the install should be finished by then.  Wrong!  The machine was dead.  Cycled power and the boot process came up with a screen advising me to repair my system.  I ignore it and try to boot up my PC.  It gets stuck on the same black screen described above.

 I reboot again, this time I take the machine’s advice and I begin the Startup Repair process.  About 90 minutes later, the repair process is still running.  Mind you, there is no diagnostic information to let you know how far along you are in the repair process!  After checking the web and reading about the same problem, I decide to cancel the repair.  I then hit the Cancel button in Startup Repair dialog box.  I get the following message: “The current repair operation cannot be cancelled.  Unbelievable!

I cycle power again, and when rebooting, I press on the F8 key in order to start up Vista in Safe Mode.  I want to boot up in Safe Mode, so I can do a System Restore; however, the machine will not boot up in Safe Mode.  It got stuck on loading drivers.  The last driver loaded was \Windows\system32\drivers\crcdisk.sys.

I cycle power again and press the F8 button.  One of the options the boot screen has is a “Repair Your Computer” option.  I select it and I come to the System Recovery Tools screen.  One of the tools is a System Restore.  Yeah!  I start the restore and select my restore point.  (The Vista Service Pack 2 install was smart enough to create a restore point before proceeding with the install.)  About 60 minutes later the System Restore is stuck on “Finalizing File Restore….”  There is no hard disk drive activity.  Again, absolutely no diagnostic information to let you know how far along you are in the Finalizing File Restore process, or how much longer it will take, or what it is doing.

So let us recap what has transpired:

1)      The Vista Service Pack 2 install failed

2)      The Startup Repair process failed

3)      Trying to boot in Safe Mode failed

4)      The System Restore failed (except for hardware errors, the System Restore should be bullet proof!)

5)      I spent 8 hours trying to fix

Fortunately, after much searching, I came across a fix.  Here is the link: http://social.technet.microsoft.com/forums/en-US/itprovistasp/thread/4491fe25-be44-430e-a384-fb58c5da5ad0/  It is a long thread, but towards the end Arun (go to entry Thursday, May 21, 2009, Mike_jane user name) provides the fix.  It is a “manual” restore done by getting to a command prompt and copying files from the C:\windows\system32\config\Regback directory to the C:\windows\system32\config directory.  

I cycle power, press the F8 button, and select the “Repair Your Computer” option.  I select the “Command Prompt” option and the command window appears.

Here are the commands from the article to enter.  They are copied from the SpecialJ entry, Saturday, July 25 2009.

type in;
cd /d C:\Windows\System32 \Config

(enter)
this should now show

Windows\System32\Config:

then type the following, hitting enter after every line

cd windows\system32\config
ren default default.old
ren sam sam.old
ren security security.old
ren software software.old
ren system system.old
cd regback
copy default c:\windows\system32\config
copy sam c:\windows\system32\config
copy security c:\windows\system32\config
copy software c:\windows\system32\config
copy system c:\windows\system32\config

Note: I did the above steps a little differently.  I renamed the files in the c:\windows\system32\config directory to *.old20090804.  I then copied the *.old entries from the Regback directory into the c:\windows\system32\config directory because their timestamps were just before the Service Pack Install was attempted.  I then removed the .old extension from those files in the c:\windows\system32\config directory.

I then exited the command window and shutdown the computer.  I pressed the power button to restart my PC.  The PC tried to install the Service Pack upgrade again, but failed.  I received the message "Service Pack did not install. Reverting the changes."   The PC automatically rebooted again, and tried to install the Service Pack again, but quickly rebooted, and I was finally back to my login prompt.  The whole process took about 30 minutes.  Many thanks to Arun and SpecialJ!

Enough with Vista Service Pack 2!  I will wait for Windows 7.

If you do try to upgrade to Vista Service Pack 2, I recommend taking the following steps beforehand:

1)      Backup your disk drive

2)      If you have a registry cleaner/repair tool, run it.

3)      Turn off your anti-virus software

 

I WILL look at Apple machines before my next computer purchase!



Vista Feature: System Event Notification Service Not Starting

clock July 9, 2009 08:48 by author johnstagich

Here is another Vista feature.  I was having trouble with my internet connection, so I rebooted my PC.  During the boot process I received this error message: Windows could not connect to the System Event Notification Service service.  My PC finishes booting and my wireless network connection is down and cannot be brought back up.

Fortunately, judging from the number of hits when performing a google search, the problem and fix are well known.  I will repeat the fix here.

1) Start -> All Programs -> Accessories (folder) -> Command Prompt

2) Right Mouse Click on Command Prompt and select Run as Administrator

3) At the command prompt enter:  NETSH WINSOCK RESET CATALOG 

4) Hit return

5) Reboot computer.

For more information, check out these links:  http://carbonize.co.uk/wp/2009/02/15/system-event-notification-service-not-starting-on-vista/   and  http://www.physicsforums.com/showthread.php?t=313388



About the author

I am the owner of Stagich Software Consulting.  Stagich Software Consulting specializes in developing Microsoft .Net/Microsoft SQL software applications.

 

Calendar

<<  December 2018  >>
MoTuWeThFrSaSu
262728293012
3456789
10111213141516
17181920212223
24252627282930
31123456

View posts in large calendar

Month List

Disclaimer

The opinions expressed herein are my own personal opinions and do not represent my employer's view in anyway.

Sign In