C#: what does the 'friend' modifier do?
- by Craig Johnston
What does the 'friend' modifier do in C#?
Why is it the default modifier for GUI components in Visual Studio?
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C#: should "" be assigned to string to make it empty?
- by Craig Johnston
Should "" be assigned to a string to make it empty? Or should it be a left as null?Read the article
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Access MDB: Is it possible to monitor and log actual queries made against an Access MDB?
- by Craig Johnston
Is it possible to monitor what is happening to an Access MDB (ie. what SQL queries are being executed against it), in the same way as you would use SQL Profiler for the SQL Server? I need logs of actual queries being called.Read the article
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In SQL Server merge replication, how does reinitializing work?
- by Craig Shearer
I have set up a pull subscription to a merge publication in SQL Server. I use parameterized row filters on some tables. This works fine with the initial synchronization - just the rows using the filter arrive in the replicated (client) database. However, at some later point I'd like to be able to synchronize the replicated database again from the…Read the article
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What is the preferred method of refreshing a combo box when the data changes?
- by Craig Johnston
What is the preferred method of refreshing a combo box when the data changes? If a form is open and the combo box data is already loaded, how do you refresh the contents of the combo box without the form having to be closed and reloaded? Do you have to do something on the Click event on the combo box? This would seem to be a potential slow down…Read the article
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Access MDB: do access MDB files have an upper size limit?
- by Craig Johnston
Do access .MDB files have an upper size limit? Will, for example, applications that connect to an .MDB file over 1GB have problems?Read the article
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Registration during Setup/Install packages
- by Craig Johnston
Is it possible to register a .NET component during the installation of a VB6 app? Is it also possible to grant security (eg. via CAPSOL) as part of an installation package?Read the article
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Interface helpers or delegating interface parent
- by Craig Peterson
If I have an existing IInterface descendant implemented by a third party, and I want to add helper routines, does Delphi provide any easy way to do so without redirecting every interface method manually? That is, given an interface like so: IFoo = interface procedure Foo1; procedure Foo2; ... procedure FooN; end; Is anything similar to…Read the article
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Validations for a has_many/belongs_to relationship
- by Craig Walker
I have a Recipe model which has_many Ingredients (which in turn belongs_to Recipe). I want Ingredient to be existent dependent on Recipe; an Ingredient should never exist without a Recipe. I'm trying to enforce the presence of a valid Recipe ID in the Ingredient. I've been doing this with a validates :recipe, :presence => true (Rails 3)…Read the article
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IE7 textbox onfocus problem
- by Craig
Because IE won't do document.getElementById(ID).setAttribute('type','password') I've re-engineered the way the password field woirks on this site: http://devdae.dialanexchange.com/Default.aspx so it works in accordance with this idea: …Read the article
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Detect certain characters in a text field
- by Craig
What is the easiest way to detect a character in a text field? I want to be able to detect a certain character and replace that character with another specific character. So If I write in a text field... "zyxw" I want it to be…Read the article
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What does Error 3112 indicate when compacting an MDB file?
- by Craig Johnston
What does Error 3112 indicate when compacting an MDB file? The Error description is "Records can't be read; no read permission on 'xyz123.mdb'" There is a known issue with the Compact function on some versions of Access MDBs. …Read the article
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HTML: how to make a file download require a username and password
- by Craig Johnston
In a basic HTML web page, how do you make the user have to enter a username and password before they are allowed to download a file. What is the best way of achieving this on a website, preferably in plain HTML.Read the article
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Can you create a linked server in SQL Server and then refer to it with an alias
- by Craig HB
Can you create a linked server in SQL Server 2008 and then refer to it with an alias. So, I create a linked server to "SalesServer", but I give it the alias "Sales", so I can use it like this: SELECT * FROM…Read the article
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VB.NET: Can the .EXE built by VS2005 be deployed as a standalone EXE?
- by Craig Johnston
VB.NET: Can the .EXE built by VS2005 be deployed as a standalone EXE? When I change the mode in VS2005 to "Release" and build the solution, the bin\Release directory then contains the solution .EXE file, but…Read the article
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Codeigniter: Retrieving data from multiple tables and displaying results
- by Craig Ward
Hi, I am developing my first big application using codeigniter and need a little help as I am fairly new to it all. I know how to get records out of the DB and display them, but I now have to get results…Read the article
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nHibernate Linq Projection
- by Craig
I am using the version 1.0 release of Linq for nHibernate. When I run the following linq statements I receive the error not a single-length projection: Surname I can find very few references to this on…Read the article
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Why is there a "Conversion Errors" tables in an MDB?
- by Craig Johnston
Why would there be a "Conversion Errors" table in an MDB? Does this mean there was an attempt to convert the MDB to a different (newer) version of Access?Read the article
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JET SQL: do LEFT JOINS and RIGHT JOINS only work under JET 4.0 and above?
- by Craig Johnston
Does the following article apply to all uses of JET (including from within client apps via DAO or OLEDB): http://support.microsoft.com/kb/275058 Does this mean JET 4.0 or above is mandatory for…Read the article
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SQL Server 2005: Invalid object name exception
- by Craig Johnston
In VS2005, I am using a DLL which accesses a SQL Server. The DLL returns a SQLException Invalid object name 'tableXYZ' but tableXYZ is a table in the database. Should it be looking for…Read the article
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Why would an OCX or DLL file need to be unregistered then re-registered?
- by Craig Johnston
Why would an OCX or DLL file need to be unregistered then re-registered? Why would this happen on machine on not others?Read the article
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VB.NET: question about "using" block
- by Craig Johnston
Consider the code: On Error Goto ErrorHandler Using sr As StreamReader = New StreamReader(OpenFile) str = sr.ReadToEnd sr.Close() End Using Exit Sub ErrorHandler: If there is an…Read the article
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iPhone SDK Zoom like UITextField
- by Craig
I have noticed in a number of apps they let you see a zoomed in view of where you are dragging just like the way it is on a UITextField (screenshot attached) but it works over images etc.. …Read the article
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mootools fx working except in ie9
- by Craig
This is my first attempt with Mootools, so I welcome a critique of the code. I have a dynamic list of images that expand on the 'click" event and contract on the 'mouseout' event. The…Read the article
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C#: why have all static methods/variables in a non-static class?
- by Craig Johnston
I have come across a class which is non-static, but all the methods and variables are static. Eg: public class Class1 { private static string String1 = "one"; private static…Read the article
