Silverlight is here

Microsoft has released a plug-in for delivering next generation media experiences and rich interactive applications for web. This is a cross-browser, cross-platform plug-in which facilities the WPFs' rich look and feel.
Silverlight was formerly known as WPF/E.
Besides me telling you about Silverlight go to Microsoft and see for your self, you also can find some nice samples done.

http://www.microsoft.com/silverlight

Debugging Stored Procedures

I know that all of you might have tried debugging Stored Procedures (SPs). But I know there are also people who are searching how to do this so I thought I needs to put an article on how to do this.

Please note that to dubug SPs you need to use an account which is a member of sysadmin role.

1.) SQL Server 2005
When you install SQL Server 2005 it will install SQL Server Business Intelliegnce Development Studio. You can use this or Visual Studio to debug SPs.

Start any prefered application from the above two and go to View menu and click on Server Explorer (or press Ctrl + Alt + S) to display the Server Explorer.

Now create a connection to the database where the SP you want to debug is located (Right click on Data Connections and click Add Connection...).

When the connection is added to the list expand the list and browse to the Stored Procedures and right click on the SP which you want to debug and select Step Into Stored Procedure. Now if the SP is requiring any parameters a dialog box will be displayed to enter the values. After entering them click Ok to run into the SP.

After you were taken into the debug mode you can use the same keys to debug SPs as if you are debugging application code (Step Into - F11, Step Over - F10, Step Out - Shift + F11).
If you like to use the Debug toolbar activate it by Clicking on View -> Toolbars -> Debug.

If you want to know what the buttons does, just hover on top of the tool so a helpful tooltip will appear. If you need more information press on the help tool which is the right most tool with a yellow question mark.

Also remember that all the additional features are also available for you to use (as if the Immediate Window) while debugging.


2.) SQL Server 2000
In SQL Server 2000 you have to use the SQL Query Analyzer to debug SPs.
Start SQL Query Analyzer and click on Tools -> Object Browser -> Show/Hide (or F8) to display the Object Browser if it is not already shown.

Now expand the database where the required SP is located and right click on the SP which you needs to debug inside Stored Procedures node.

Click on the Debug... to start the debugging, if the SP requires any values for its parameters a window will pop up to enter the values. After entering the values click on Execute.

When debugging starts you can use the available controls or shortcut keys (Step Into - F11, Step Over - F10, Step Out - Shift + F11, Run to Cursor - Ctrl + F10) to debug through the SP.



If you want to know what the buttons does, just hover on top of the tool so a helpful tool tip will appear. If you need more information press on the help tool which is the right most tool with a yellow question mark.

Number Game - Excellent Number Trick

Did anyone visit http://www.learnenglish.org.uk/games/magic-gopher-central.swf. If you like simple but excellent tricks visit and enjoy.

If you did play the game visiting the british counsil website, some of you may have picked it up what is happening, but if you didn't then read on.

In this game what they are using is a simple number trick.
It is like this,

You first have to think of a two digit number.
For example we'll take 10,

If you add 1 and 0 then it'll be 1.
Now reduce it from 10 so the result will be 9.

To explain the process i'll take more numbers,
10 -> 1+0=1 -> 10-1 =09
13 -> 1+3=4 -> 13-4 =09
15 -> 1+5=6 -> 15-6 =09
19 -> 1+9=10 -> 19-10 =09

21 -> 2+1=3 -> 21-3 =18
25 -> 2+5=7 -> 25-7 =18
27 -> 2+7=9 -> 27-9 =18

33 -> 3+3=6 -> 33-6 =27
36 -> 3+6=9 -> 36-9 =27
38 -> 3+8=11 -> 38-11 =27

Did any one note anything?
There is always a common number coming for each 10 numbers from 0-9.
00-09 the common number is 0.
10-19 the common number is 9.
20-29 the common number is 18.
30-39 the common number is 27.
40-49 the common number is 36.
50-59 the common number is 45.
60-69 the common number is 54.
70-79 the common number is 63.
80-89 the common number is 72.
90-99 the common number is 81.

In the game what they does is they will put an image for all these numbers in there symbol board. So what ever number we guessed we will end up with one of the above numbers and all the above numbers will have the same image on them. Then the program displays the common image as our symbol saying that it read our mind.
The game ends like that but anyway I think it is better if people had the ability of reading other peoples' minds.

Sending EMail using SQL Server 2005

Did anyone try sending email using SQL Server?
Ok I tried and got it working, so if you would like to know more please read on. If you face problems while trying this please contact me and I will try helping you sort out the problem.

SQL Server (SQLS) provides Stored Procedure (SP) s which we can use to send mails using SQL. There are two methods in SQL Server 2005.

1.) SQL Mail - SQL Server 2000 provides SQL Mail (The SP you have to use in this method is xp_sendmail.). This method is also supported in SQL Server 2005 (SQLS 2005). But this will not be supported in the next versions of SQL Server. If you are doing a new development the best is to use the Database Mail. Do know that SQL Mail is not supported on 64 Bit versions of SQLS and also remember that SQL Mail is not installed in SQLS 2005 by default.

2.) Database Mail - SQL Server 2005 provides a new method called Database Mail (The SP you have to use in this method is sp_send_dbmail.). This is new to SQL Server 2005 so I will be discussing how to send mails using Database Mail in the following sections of this article using a SP which I wrote as an example. The following SP will read a table and will generate a HTML report according to the data and will send it as an EMail.

Please note that in this article HTML, HEAD, BODY starting and ending tags are proceeded with _ since they are not allowed to be used inside of posts.

--****************************************************************************************
-- Original Developer - Arjuna Chiththananda
-- Description - Sending EMails in SQL Server.
-------------------------------------------------------------------------------------------------------------------
CREATE PROCEDURE [OWNER].[sp_SendEMail]
(
@ReportDate DATETIME
)
AS
BEGIN
SET NOCOUNT ON;
-- Declaring main variables required.
-- HTMLReport is used to store the report (web page) generated using HTML.
DECLARE @varReferenceNumber VARCHAR(10), @varPassengerName VARCHAR(100), @varDepartment VARCHAR(30), @varTravelInformation VARCHAR(100), @HTMLReport VARCHAR(MAX), @varSubject VARCHAR(75)
-- Starting the creation of web page report.
SET @HTMLReport = '<_html><_head><_title>Ar'
+ '<_body>

SQL Server EMail System

Email Report

'
+ '

Report Date -: ' + CONVERT(VARCHAR(15), @ReportDate, 105) + '

'
+ '

---

'
-- Checking a view for data.
IF (SELECT COUNT (*) FROM [OWNER].[vw_ListPassengers] WHERE ReserveDate BETWEEN @ReportDate AND @ReportDate) = 0
BEGIN
SET @HTMLReport = @HTMLReport + 'There are no records to display.'
END
ELSE
BEGIN
-- Creating the table required to format the displayed data.
SET @HTMLReport = @HTMLReport + '

'
+ ' '
+ ' '
+ ' '
+ ' '
+ ' '
-- Declaring a cursor to loop through data.
DECLARE curPsngrList CURSOR
FOR SELECT [RefId], [PassengerName], [Department], [Address] FROM [OWNER].[vw_ListPassengers] WHERE ReserveDate BETWEEN @ReportDate AND @ReportDate
OPEN curPsngrList
FETCH NEXT FROM curPsngrList INTO @varReferenceNumber, @varPassengerName, @varDepartment, @varTravelInformation
WHILE @@FETCH_STATUS = 0
BEGIN
-- Adding rows to the table for the records found.
SET @HTMLReport = @HTMLReport + ' '
+ ' '
+ ' '
+ ' '
FETCH NEXT FROM curPsngrList INTO @varReferenceNumber, @varPassengerName, @varDepartment, @varTravelInformation
END
-- Closing and deallocating the cursor.
CLOSE curPsngrList
DEALLOCATE curPsngrList
END
-- We are done with the report web page. Ending the web page properly.
SET @HTMLReport = @HTMLReport + '

Reference Number	Passenger Name	Department	Travel Information
' + @varReferenceNumber + '	' + @varPassengerName + '	' + @varDepartment + '	' + @varTravelInformation + '

'
-- Enabling Database Mail.
-- With the default settings Database Mail is not enabled to increase the performance and security of the server.
-- So before using Database Mail we have to enable it on the SQL Server. This is done by setting the configuration option 'Database Mail XPs'. But because is it an advanced configuration option first we have to enable showing advanced options by running the following.
EXEC master.dbo.sp_configure 'show advanced option', '1'
-- To apply the changes run RECONFIGURE.
RECONFIGURE
EXEC master.dbo.sp_configure 'Database Mail XPs', 1
-- On both above options 1 is used to enable the option and 0 is used to disable the option.
RECONFIGURE
-- Now we have enabled Database Mail now we have to start Database Mail.
EXEC msdb.dbo.sysmail_start_sp
-- To send EMails first you have to setup Database Mail. First you have to create an account.
-- I am getting the mail account settings from a table, following are the required variables.
DECLARE @varUserName NVARCHAR(128), @varPassword NVARCHAR(128), @varEMailAddress NVARCHAR(128), @varDisplayName NVARCHAR(128), @varMailServerName NVARCHAR(128), @varPort INT
-- Filling the required variables with the table data.
SELECT TOP 1 @varUserName=EMServerUserName, @varPassword=EMServerPassword, @varEMailAddress=EMSenderAddress, @varDisplayName=EMSenderName, @varMailServerName=EMServerName, @varPort=EMServerPort FROM [OWNER].[tblEMailServer] ORDER BY EMServerOrder, EMServerName
-- Checking whether the account already exists.
-- We can check for existing accounts in the sysmail_account table in the msdb database. As the final section of this article I will list down number of tables which will come in handy while you use Database Mail. (Note my account name is accArjuna.)
IF (SELECT COUNT(*) FROM [msdb].[dbo].[sysmail_account] WHERE [name] = 'accArjuna') = 0
BEGIN
BEGIN TRY
-- If the account does not exist we have to create the account.
EXECUTE msdb.dbo.sysmail_add_account_sp
@account_name = 'accArjuna', -- Account name.
@username = @varUserName, -- Account user name to log in to the SMTP server ('Arjuna'),
@password = @varPassword, -- Password of the above mentioned account ('123').
@description = 'Arjuna Chith on Database Mail.', -- Description of the account.
@email_address = @varEMailAddress, -- EMail address to use to send the mails ('Arjuna@Company.Au').
@display_name = @varDisplayName, -- Name to display in the messages ('Arjuna Chiththananda').
@mailserver_name = @varMailServerName, -- SMTP mail server name ('Server.My.Company').
@port = @varPort -- Port of the mail server if it is diferent from 25 (25 is the default value).
END TRY
BEGIN CATCH
END CATCH
END
-- If the account already exists we will update it, since sometimes the details might have changed.
ELSE
BEGIN
EXECUTE msdb.dbo.sysmail_update_account_sp
@account_name = 'accArjuna', -- Account name.
@username = @varUserName, -- Account name to log in to the SMTP server ('Arjuna'),
@password = @varPassword, -- Password of the above mentioned account ('123').
@description = Arjuna Chith on Database Mail.', -- Description of the account.
@email_address = @varEMailAddress, -- EMail address to use to send the mails ('Arjuna@Company.Au').
@display_name = @varDisplayName, -- Name to display in the messages ('Arjuna Chiththananda').
@mailserver_name = @varMailServerName, -- SMTP mail server name ('Server.My.Company').
@port = @varPort, -- Port of the mai,server if it is diferent to 25 (25 is the default value).
@replyto_address = NULL, -- We can put a reply to address different from above address if we needs to make all replies to the send mail directed to another mail box.
@mailserver_type = 'SMTP', -- Mail server type. Currently only SMTP is supported.
@use_default_credentials = 0, -- Credentials to be used. (1 = SQL Server credentials, 0 = users the username and password given in the above and null = anonymous authentication.)
@enable_ssl = 0 -- If your mail server needs Secure Sockets Layer (SSL) then set it to 1 or make it 0. By making this 1 Database Mail will encrypt communication using SSL.
-- Instead of updating if you want we can delete and add the account again. That part is commented here because you don't need to have both update and delete + add. But if you want you can use this method also.
-- EXECUTE msdb.dbo.sysmail_delete_account_sp
-- @account_name = 'accArjuna' -- When deleting an account we need to give the account id or the name. I prefer giving the name.
-- Now we have deleted the account we will add the modifications as a new account.
-- EXECUTE msdb.dbo.sysmail_add_account_sp
-- @account_name = 'accArjuna', -- Account name.
-- @username = @varUserName, -- Account user name to log in to the SMTP server ('Arjuna'),
-- @password = @varPassword, -- Password of the above mentioned account ('123').
-- @description = 'Arjuna Chith on Database Mail.', -- Description of the account.
-- @email_address = @varEMailAddress, -- EMail address to use to send the mails ('Arjuna@Company.Au).
-- @display_name = @varDisplayName, -- Name to display in the messages ('Arjuna Chiththananda').
-- @mailserver_name = @varMailServerName, -- SMTP mail server name ('Server.My.Company').
-- @port = @varPort -- Port of the mail server if it is diferent from 25 (25 is the default value).
END
-- Now we have to add a Profile.
-- First check whether the profile exists.
IF (SELECT COUNT(*) FROM [msdb].[dbo].[sysmail_profile] WHERE [name] = 'prfArjuna') = 0
BEGIN
BEGIN TRY
-- If not add the profile.
EXECUTE msdb.dbo.sysmail_add_profile_sp
@profile_name = 'prfArjuna', -- Profile name to be used.
@description = 'Arjunas Profile' -- Profile description to be used.
END TRY
BEGIN CATCH
END CATCH
END
-- Now we have added an account and a profile we need to merge both these that is done here after checking whether it exists.
IF (SELECT COUNT(*) FROM [msdb].[dbo].[sysmail_profileaccount] WHERE [profile_id] IN (SELECT [profile_id] FROM [msdb].[dbo].[sysmail_profile] WHERE [name] = 'prfArjuna') AND [account_id] IN (SELECT [account_id] FROM [msdb].[dbo].[sysmail_account] WHERE [name] = 'accArjuna')) = 0
BEGIN
BEGIN TRY
EXECUTE msdb.dbo.sysmail_add_profileaccount_sp
@profile_name = 'prfArjuna', -- Profile to be linked.
@account_name = 'accArjuna', -- Account to be linked.
@sequence_number = 1 -- Determines the order of account usage if you have more than one account. If the first account fails it will try sending mails with the second one in the order.
END TRY
BEGIN CATCH
END CATCH
END
-- Grants the Database Mail profile access to the msdb public database role and to make the profile the default Database Mail profile.
BEGIN TRY
EXECUTE msdb.dbo.sysmail_add_principalprofile_sp
@profile_name = 'prfArjuna', -- Profile name to set.
@principal_name = 'public', -- Makes this profile a public profile.
@is_default = 1 -- Makes the profile the default profile for the principal.
END TRY
BEGIN CATCH
END CATCH
-- Fire RECONFIGURE to make the changes apply to SQL Server.
RECONFIGURE
-- The variable to hold the recipient list of our mail.
DECLARE @varRecipients VARCHAR(MAX)
-- Filling recipient list from the table (Note here I am getting the first one in the table (Which will be the last entry added).)
SELECT TOP 1 @varRecipients=EMailAddress FROM [OWNER].[tblEMail] WHERE EMailActive=1 ORDER BY EMailId DESC
-- Setting the subject of the EMail.
SET @varSubject = 'EMailing in SQL Server on ' + CONVERT(VARCHAR(15), @ReportDate, 105) + '.'
-- We have done the hard part so we will now send our mail.
EXEC msdb.dbo.sp_send_dbmail
@profile_name = 'prfArjuna', -- Profile name to be used when sending mail.
@recipients = @varRecipients, -- Recipients who will get our mail. ('Arjuna@Company.Au).
@subject = @varSubject, -- Adding the subject to the mail.
@body_format = 'HTML', -- Format of the mail, this could be Text or HTML.
@body = @HTMLReport -- Message body of the mail.
-- If you want to mail an output of a query you can give your query as follows.
--@query='SELECT RefId FROM FlightBooking.SE.Vw_Report_ListPassengers'
END
--****************************************************************************************
Now we have finished the SP remember to run this sp under a sysadmin or serveradmin role to make sure the reconfigurations will take effect.
When we do Database Mail related things like creating accounts, profiles etc everything will be stored in the msdb. If you would like to query out the statuses, following tables might be helpful.
-- Lists down all the created mail accounts.
SELECT * FROM [msdb].[dbo].[sysmail_account]
-- Lists down all the attachments sent using Database Mail.
SELECT * FROM [msdb].[dbo].[sysmail_attachments]
-- Lists down all the created attachments using Database Mail.
SELECT * FROM [msdb].[dbo].[sysmail_attachments_transfer]
-- Lists down the configuration settings of Database Mail.
SELECT * FROM [msdb].[dbo].[sysmail_configuration]
-- Lists down all the created mail servers.
SELECT * FROM [msdb].[dbo].[sysmail_server]
-- Lists down the activity log of Database Mail, if any error occurs a log entry will be created.
SELECT * FROM [msdb].[dbo].[sysmail_log]
-- Lists down the mails sent from Database Mail.
SELECT * FROM [msdb].[dbo].[sysmail_mailitems]
-- Lists down the principal accounts configured.
SELECT * FROM [msdb].[dbo].[sysmail_principalprofile]
-- Lists down all the created profiles.
SELECT * FROM [msdb].[dbo].[sysmail_profile]
-- Lists down all the created profile accounts.
SELECT * FROM [msdb].[dbo].[sysmail_profileaccount]
-- Lists down the details of results that were returned from the queries that were run using Database Mail.
SELECT * FROM [msdb].[dbo].[sysmail_query_transfer]
-- Lists down the details of retry attempts made.
SELECT * FROM [msdb].[dbo].[sysmail_send_retries]
-- Lists down all the created mail servers.
SELECT * FROM [msdb].[dbo].[sysmail_server]
-- Lists down the mail server type (SMTP) and some settings.
SELECT * FROM [msdb].[dbo].[sysmail_servertype]

Getting Date part only from SQL DateTime Value

Even though I have taken date part only from a datetime field earlier I had to struggle for some minutes yesterday, so I thought why I shouldn't put a blog entry on this so it will help me. Also I think that this will help many of you reading my blogs.

I found two ways to accomplish this without using DATEPART. I believe it is not good practice to use DATEPART and assemble the date by ourselves because it will sometimes change the original year, month and day order and at times that will cause some unnecessary problems.

Method 1

SELECT CAST(FLOOR(CAST(GETDATE() AS FLOAT)) AS DATETIME)

What is happening here is CAST(GETDATE() AS FLOAT) will cast the date into a floating point number {2007-04-12 22:12:00.837 = 39182.9236936343}.
Then the FLOOR function will return the largest integer part of the parameter. In our case the result of CAST(GETDATE() AS FLOAT) {39182.9236936343}. The result of this will be 39182.
Now I will caste this value again to a DATETIME value. This time, since there is no fraction part in the value that results in the time part to return as 00:00:00.000. {Fraction part represents the time.}
The final result will be 2007-04-12 00:00:00.000.

Method 2

SELECT CONVERT(NVARCHAR(20), GETDATE(), 101)

In this second approach what I am doing is simply Converting the date into a character. The last parameter of the CONVERT function {101} is the style number which will specify the conversion. Value 101 will return the value in the format of MM/DD/YYYY. {To acquire more information about conversion styles refer CONVERT function in SQL Books Online.} The result of this will be 04/12/2007.

One thing to remember when using second method is that the result will be in the format MM/DD/YYYY. So if you are comparing this value with another date you have to be careful to make the other comparing value also in the format of MM/DD/YYYY. Otherwise it will return wrong results.

ROM Upgrade on HP iPAQ rw6828

I flashed the ROM of my Pocket PC to version 1.01.03 from 1.00.03. I highly recommend you to upgrade your PPC ROM to the new version since this upgrade will solve many problems that this device is having with the earlier ROM. In the upgrade process I got in to problems initially but at the end I managed to succeed. So I thought of putting a post so that others can do it in one shot unlike me.

You can download the ROM upgrade from
http://h18007.www1.hp.com/support/files/handheldiPAQ/us/download/23981.html
the main software and driver page at HP is
http://h18007.www1.hp.com/support/files/handheldiPAQ/us/locate/1129_6331.html?jumpid=reg_R1002_USEN#0.

As the first thing what you needs to do is backup the data in you PPC because upgrading ROM will erase all the data. The easiest way to save your personal data is to create a ActiveSync membership and sync all the data to a Personal Computer. Then when you complete the upgrade you can sync back and restore the data.

Next make sure that you have ActiveSync 2.0, If you have newer version of ActiveSync I recommend you to uninstal that and install ActiveSync 2.0. You can get it from http://www.microsoft.com/downloads/details.aspx?familyid=7269173A-28BF-4CAC-A682-58D3233EFB4C&displaylang=en.

You should make sure that your computer will not go to standby or hibernate modes and also that your connection from PPC to the computer will be intact while the ROM upgrade is happening. Power failure or cable detach could cost you your PPC.

Remember to remove any SD cards, secondary batteries, SIM cards that you have in your PPC. Also note that it is good practice to charge your PPC above 75% before starting the upgrade.

Next double click on the file you downloaded from HP. Make sure you extract it to the default location provided (C:\iPAQ\SP34074).
Automatically it will start the upgrade process. Follow it as you follow a normal wizard.

If you are lucky the process will continue to 100% and the PPC will reset and will start as usual.

Then create a new partnership with ActiveSync and synchronize the data back to your PPC.

The upgrade process is installing things as follows,
0% - 90% - Pocket PC 2005 and related components
90% - 93% - New Boot Loader
94% - 95% - WAP Component
95% - 100% - WAN Component

If your update process stops at 90% and give a Windows error don't panic. What happens here is that the updater fails while closing the Pocket PC 2005 and opening Boot Loader.
If his happens make sure that you are running ActiveSync 4.2 then disconnect the PPC from the cable and remove the battery for about one minute. At the same time shutdown your computer and restart. Then reconnect the battery. The PPC will then come to a white screen with HP logo on it. now connect the USB cable again.

Go to the place where unzipped the files (C:\iPAQ\SP34074). Double click on hpRUU.exe to manually start the updater again. As you are in trouble already do not start any other applications while the updater is doing its work. If you have followed exactly what I have mentioned this time it should upgrade the ROM successfully. If not what you can do is try another two three times and if this fails you have to send your PPC to a HP service center to upgrade the ROM for you. Or else if you like to continue with the old ROM version you can install the older ROM which can be downloaded from http://h18007.www1.hp.com/support/files/handheldiPAQ/us/download/23966.html.

All the best for your upgrade.

Unexpected Behaviour in UltraFlowLayoutManager

Recently I faced a problem in one of my Tablet PC projects because of an unexpected behaviour of Infragistics UltraFlowLayoutManager.

My scenario is as follows, I am adding dynamically (run time) some UltraExpandableGroupBox controls to a panel which is managed by a UltraFlowLayoutManager. The problem was after the initial display the last group box added to the panel is going missing or appearing in some other location instead of the required location. You can notice this even if the Panel changes its size, normally the layout manger should automatically arrange the controls but here it will not do on the last control added.The actual problem was that the coordinates for the last control was not appropriately set and also the Z order of the control is reduced making it go behind the other controls.
I tried to set the coordinates myself but always the layout manager will override them.
I also tried changing Z order by calling each controls’ BringToFront method. But then all controls will start wondering around.

So as the solution I had to add a dummy Panel control as the last control and I made it to appear as a line to stop confusing users.
Now my application will display a line a the end at times and at times it will not. Kind of AI behavior huh :-).