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  • Delphi constants and references

    - by Sambatyon
    I want to pass constant references to functions in delphi, so I am sure that the referenced object won't change and to save time and memory. So I want to declare a function like function foo(var const Value : Bar) : Boolean; however this is not allowed. I thought constant values would be automatically sent as references. However I found out that it is not the case (getting the address of an object before sending it to the function gives me $12F50C and the address of the same object inside the function is $12F564) What can I do to send constant references?

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  • SQL/Schema comparison and upgrade

    - by Workshop Alex
    I have a simple situation. A large organisation is using several different versions of some (desktop) application and each version has it's own database structure. There are about 200 offices and each office will have it's own version, which can be one of 7 different ones. The company wants to upgrade all applications to the latest versions, which will be version 8. The problem is that they don't have a separate database for each version. Nor do they have a separate database for each office. They have one single database which is handled by a dedicated server, thus keeping things like management and backups easier. Every office has it's own database schema and within the schema there's the whole database structure for their specific application version. As a result, I'm dealing with 200 different schema's which need to be upgraded, each with 7 possible versions. Fortunately, every schema knows the proper version so checking the version isn't difficult. But my problem is that I need to create upgrade scripts which can upgrade from version 1 to version 2 to version 3 to etc... Basically, all schema's need to be bumped up one version until they're all version 8. Writing the code that will do this is no problem. the challenge is how to create the upgrade script from one version to the other? Preferably with some automated tool. I've examined RedGate's SQL Compare and Altova's DatabaseSpy but they're not practical. Altova is way too slow. RedGate requires too much processing afterwards, since the generated SQL Script still has a few errors and it refers to the schema name. Furthermore, the code needs to become part of a stored procedure and the code generated by RedGate doesn't really fit inside a single procedure. (Plus, it's doing too much transaction-handling, while I need everything within a single transaction. I have been considering using another SQL Comparison tool but it seems to me that my case is just too different from what standard tools can deliver. So I'm going to write my own comparison tool. To do this, I'll be using ADOX with Delphi to read the catalogues for every schema version in the database, then use this to write the SQL Statements that will need to upgrade these schema's to their next version. (Comparing 1 with 2, 2 with 3, 3 with 4, etc.) I'm not unfamiliar with generating SQL-Script-Generators so I don't expect too many problems. And I'll only be upgrading the table structures, not any of the other database objects. So, does anyone have some good tips and tricks to apply when doing this kind of comparisons? Things to be aware of? Practical tips to increase speed?

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  • Need to open to two excel files and add numbers from them into a third file using vba.

    - by Harpyar Singh
    I have two excel files which has similar formatting and the data map each other from cell b15:h31. Row 15 is heading and so is the column B. I want to read file1 cell by cell and add that cell's content to the corresponding cell in File 2 i.e C16 in file 1 gets added to C16 in file 2, C17 in file 1 to C17 in file 2 and so on. The output goes in file 3 or anything. trying to implement through vba but of no success so far. Does anyone know how to go about it.

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  • Trouble Avoiding Microsoft Outlook's Email Warning

    - by talbright
    I have a set of records in Microsoft Access that I am trying to send in an Email. The email feature works great. Except a warning message pops up every time a message is ready to send, and the user has to click "Allow" or "Deny" for every email sent. I looked up a workaround, and have been following the tutorial for it: http://www.everythingaccess.com/tutorials.asp?ID=Outlook-Send-E-mail-Without-Security-Warning. My problem is that when I put my message in the function it always returns false, and the message fails. Any help would be appreciated. Dim sendMail As Boolean Dim strMessage As String strMessage = Some Message sendMail = FnSafeSendEmail(![Email Id], "Subject", strMessage) The entire "FnSafeSendEmail" function can be found in the link provided. These are the parameters though. Public Function FnSendMailSafe(strTo As String, _ strCC As String, _ strBCC As String, _ strSubject As String, _ strMessageBody As String, _ Optional strAttachments As String) As Boolean The error is thrown on this line of the function. Dim blnSuccessful As Boolean blnSuccessful = objOutlook.FnSendMailSafe(strTo, strCC, strBCC, _ strSubject, strMessageBody, _ strAttachmentPaths)

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  • How do I correctly use two Not Exists statements in a where clause using Access SQL VBA?

    - by Bryan
    I have 3 Tables: NotHeard,analyzed,analyzed2. In each of these tables I have two columns named UnitID and Address. What I'm trying to do right now is to select all of the records for the columns UnitID and Address from NotHeard that don't appear in either analyzed or analyzed2. The SQL statement I created was as follows: SELECT UnitID, Address INTO [NotHeardByEither] FROM [NotHeard] Where NOT EXISTS( Select analyzed.UnitID FROM analyzed WHERE [NotHeard].UnitID = analyzed.UnitID) or NOT EXISTS( Select analyzed2.UnitID FROM analyzed2 WHERE [NotHeard].UnitID = analyzed2.UnitID) Group BY UnitID, Address I thought this would work since I've used the single NOT EXISTS subquery line and it has worked just fine for me in the past. The above query however returns the same data that is in the NotHeard table whereas if I take out the or NOT EXISTS part it works correctly. Any ideas as to what I'm doing wrong or how to do what I'm wanting to do?

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  • Incoming Mails in Sharepoint

    - by frbry
    Hello all, I have a Document Library that receives a mail every week. I want to show the list of mails with their summaries. Is it possible to get that mail's content in Sharepoint, without deploying a custom code? Thanks.

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  • How can I get an e-mail address out of a string of key=value pairs?

    - by noob
    How can I get some part of string that I need? accountid=xxxxxx type=prem servertime=1256876305 addtime=1185548735 validuntil=1265012019 username=noob directstart=1 protectfiles=0 rsantihack=1 plustrafficmode=1 mirrors= jsconfig=1 [email protected] lots=0 fpoints=6076 ppoints=149 curfiles=38 curspace=3100655714 bodkb=60000000 premkbleft=25000000 ppointrate=116 I want data after email= but up to live.com.?

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  • Who's setting TCP window size down to 0, Indy or Windows?

    - by François
    We have an application server which have been observed sending headers with TCP window size 0 at times when the network had congestion (at a client's site). We would like to know if it is Indy or the underlying Windows layer that is responsible for adjusting the TCP window size down from the nominal 64K in adaptation to the available throughput. And we would be able to act upon it becoming 0 (nothing gets send, users wait = no good). So, any info, link, pointer to Indy code are welcome... Disclaimer: I'm not a network specialist. Please keep the answer understandable for the average me ;-) Note: it's Indy9/D2007 on Windows Server 2003 SP2. More gory details: The TCP zero window cases happen on the middle tier talking to the DB server. It happens at the same moments when end users complain of slowdowns in the client application (that's what triggered the network investigation). 2 major Network issues causing bottlenecks have been identified. The TCP zero window happened when there was network congestion, but may or may not be caused by it. We want to know when that happen and have a way to do something (logging at least) in our code. So where to hook (in Indy?) to know when that condition occurs?

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  • MS Access ADODB.recordset character limit is 2036!? Can this be increased?

    - by souper-dragon
    In the following AccessVBA code, I am trying to write a record to a memo field called "Recipient_Display": oRec1.Fields("RECIPIENT_DISPLAY") = Left(sRecipientDisplayNames, Len(sRecipientDisplayNames) - 2) When the string contains 2036 characters, the write completes. Above this number I get the following error: Run-time error'-2147217887(80040e21)': Could not update; currently locked by another session on this machine. What is the significance of this number 2036 and is there a property I can adjust that will allow the above update to take place?

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  • How to compare multiple columns in excel?

    - by musicking123
    Hi i have two sheets having data like this sheet1 : **A** **B** **C** 752 A 752 E 752 N 984 G1 984 G2 4471 U1 4471 U2 4471 U4 4471 U5 4471 U7 4471 U8 sheet2: **A** **B** **C** 132 G 69092 227 G 29400 227 G1 2378 292 G 2088 426 G 14419 752 A 180829 752 E 719404 752 N 602180 1173 G 7361 1173 G1 13083 1619 US 108 5804 N 701 5804 SG 8 5819 CA 24 6333 AE 218 What i want is, i need compare sheet1 and sheet2 , if sheet1 A and B columns match with sheet2 's A and B columns then i want the value C (column in sheet2) to be placed in sheet1 column C. Please help me, i know how to compare only one column with other column by using vlookup, but here i want to compare two columns at a time. Thanks in advance

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  • How do I programmatically nullify a File Attachment in InfoPath Forms

    - by Doctor Zinda
    Howdy all, I'm running into a problem with some InfoPath C# code while trying to remove an attachment from a form. Basically the process is: User opens form User clicks button File attachment is cleared I've tried adding a blank attachment to my schema that never becomes populated, then setting the original field's value equal to that value by the method below. When debugging the form I catch an error: Schema validation found non-data type errors. Any tips here would be appreciated. public void BTN_ClearAttachment_Clicked(object sender, ClickedEventArgs e) { try { _OriginalAttachment.SetValue(_BLANK_ATTACHMENT.Value); } catch (Exception ex) { _ErrorField.SetValue(ex.Message + " : " + ex.StackTrace); } } Thanks, Dr Z Edit - P.S. I should clear up that both _OriginalAttachment & _ErrorField are both XPathNavigators, pointing at different schema elements. I've verified that these XPathNavigators are both pointing at valid schema elements.

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  • Access Creates new file every time I Compact & Repair

    - by NickSentowski
    It didn't always do this, but ever since I split my database and made the front-end an ACCDE file, any time I try to compact and repair either file, a new file called "Database 1" is generated and my original file size doesn't change. Is this normal? My ACCDB is roughly 20MB, and my ACCDE is just over 1M after being used the first time. Before opening, the ACCDE was only 600k (I have lots of forms and queries, and regularly store PDF attachments.

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  • File combo box in delphi

    - by Bharat
    Hi, I want to have file combo box in delphi. It must behave like this: If i enter C:\ in combo box, it should show all the files & folders in C: Drive If i proceed further i.e., if i enter C:\Pro, then all the files & folders starting with C:\Pro should be shown in combo box. Simply it should behave like the File Name Combox Box that will come while using save dialog box

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  • How to create a workboook specific Excel Add in

    - by Ankit
    I would like to create a excel Add in which creates some additional toolbars and Menu buttons. But I want this addin to load only when a specific workbook is opened. I dont want to load the Addin if anyother workbook is open. I would like to know what are the possible ways to solve this problem and what is the best approach to implement this Add in (XLA or VSTO or COM Addin)

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  • Why does my report recalculate totals when I scroll in Access '07?

    - by andrewb
    Whenever I make a report in Access '07 and include some sort of total (whether counting or summing values), when I'm viewing the preview and scroll, the total recalculate. This is really annoying as Access takes a while (several tenths of a second) to do this, and while it does that the totals go blank. I've looked for a solution online, but I can't find this issue described anywhere. How can I stop the totals from recalculating when I scroll? I'm hoping for a simple solution that would solve this for all reports, or perhaps a simple property tweak on each report. I don't want to have to add code for every single report! I should describe the report layouts I'm using - they contain rows of data all on one page, and at times I group the rows. The number of rows aren't major, maybe around 50 a time or so.

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  • Manipulate Excel workbooks programmatically

    - by Tom
    I have an Excel workbook that I want to use as a template. It has several worksheets setup, one that produces the pretty graphs and summarizes the numbers. Sheet 1 needs to be populated with data that is generated by another program. The data comes in a tab delimited file. Currently the user imports the tab delimited file into a new Workbook, selects all and copies. Then goes to the template and pastes the data into sheet1. This is a large amount of data, 269 columns and over 135,000 rows. It’s a cumbersome process and the users are not experienced Excel users. All they really want is the pretty graphs. I would like to add a step after the program that generates the data to programmatically automate the process the user currently must do manually. Can anyone suggest the best method/programming language that could accomplish this?

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  • Excel Save fails in Windows 7

    - by Karthik
    Hi, I have created an application to interact with Excel in C#.net The API to save the Excel Excel._Workbook m_oWorkBook; m_oWorkBook.Save(); Throws up a File Saveas MessageBox though the workbook was already saved in a given name. Note: This happens only in Windows 7 & only when another Workbook was already opened. Any clues.

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  • Access DB Transaction on insert or updating

    - by Raju Gujarati
    I am going to implement the database access layer of the Window application using C#. The database (.accdb) is located to the project files. When it comes to two notebooks (clients) connecting to one access database through switches, it throws DBConcurrency Exception Error. My target is to check the timestamp of the sql executed first and then run the sql . Would you please provide me some guidelines to achieve this ? The below is my code protected void btnTransaction_Click(object sender, EventArgs e) { string custID = txtID.Text; string CompName = txtCompany.Text; string contact = txtContact.Text; string city = txtCity.Text; string connString = ConfigurationManager.ConnectionStrings["CustomersDatabase"].ConnectionString; OleDbConnection connection = new OleDbConnection(connString); connection.Open(); OleDbCommand command = new OleDbCommand(); command.Connection = connection; OleDbTransaction transaction = connection.BeginTransaction(); command.Transaction = transaction; try { command.CommandText = "INSERT INTO Customers(CustomerID, CompanyName, ContactName, City, Country) VALUES(@CustomerID, @CompanyName, @ContactName, @City, @Country)"; command.CommandType = CommandType.Text; command.Parameters.AddWithValue("@CustomerID", custID); command.Parameters.AddWithValue("@CompanyName", CompName); command.Parameters.AddWithValue("@ContactName", contact); command.Parameters.AddWithValue("@City", city); command.ExecuteNonQuery(); command.CommandText = "UPDATE Customers SET ContactName = @ContactName2 WHERE CustomerID = @CustomerID2"; command.CommandType = CommandType.Text; command.Parameters.AddWithValue("@CustomerID2", custIDUpdate); command.Parameters.AddWithValue("@ContactName2", contactUpdate); command.ExecuteNonQuery(); adapter.Fill(table); GridView1.DataSource = table; GridView1.DataBind(); transaction.Commit(); lblMessage.Text = "Transaction successfully completed"; } catch (Exception ex) { transaction.Rollback(); lblMessage.Text = "Transaction is not completed"; } finally { connection.Close(); } }

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  • Why am I getting "Unable to find manifest signing certificate in the certificate store" in my Excel Addin?

    - by Andy Parsons
    I've got an Excel add-in project that was created a couple years back in Visual Studio 2008. It's got some changes to be made so I've upgraded to Visual Studio 2010 (the only IDE I am able to use). Not sure if this is causing the problem but it's background information. When I check out the code and compile it I get the error, "Error 1 Unable to find manifest signing certificate in the certificate store." Can anyone tell me what this means and how to fix it?

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