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Filter by Day: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Null or empty string in a database Posted by Jay at 9/27/2007 10:10:25 PM For a column that contains a string (let's say varchar[50]), is there any
performance advantage in not allowing nulls, and using an empty string ("")
to instead?
...more >>
API Design: Is Socket.Select() seriously busted? Posted by Dilip at 9/27/2007 9:55:41 PM
I don't know how I missed this piece for so long (this may also be old
news to you guys) but in this ACMQueue article, Michi Henning goes to
elaborate lengths to detail how even today designing a good API
requires a lot experience and effort by illustrating the example of
something as common p...more >>
DataSet Problems only When Published Posted by Lint Radley at 9/27/2007 7:55:00 PM Hello,
My project contains a dataset which accesses an MDF database file
created within the project. When debugging the program, everything works
great. However, when I publish and install the project, the program
always hangs on a GetData() method which was generated automatically by
the...more >>
Creating a reference to an object Posted by mark.norgate NO[at]SPAM gmail.com at 9/27/2007 5:51:11 PM Hello
I want to create a reference to an object, so that changes to the
referenced object are reflected in the other object. Like this:
object o = 123;
object p = o;
o = 456;
System.Console.WriteLine("o = {0}", o);
System.Con...more >>
jsp to asp.net Posted by james at 9/27/2007 5:49:48 PM Hey Guys,
Would you all recommend some good reasons to switch from jsp to .net
(from a managers perspective). My company has a two year investment
in a successful jsp website, and I am trying to convince them to let
us write a new module in aspx. Also, is migrating painful (will jsp
and asp...more >>
How can I turn this code snippet into a blocking function? Posted by Jamie Risk at 9/27/2007 3:52:43 PM How can I rewrite 'getSpecialData()' more so that it more elegantly waits
for the handler to complete?
- Jamie
class someClass {
private class SpecialData { ... }
private SpecialData specialData;
private bool blocking;
private void retrievedHandler(SpecialData d)
{ specialD...more >>
Problem with Socket.EndReceive Returning Invalid Value Posted by at 9/27/2007 3:41:02 PM I have a C# Socket configured for streaming TCP. Upon making a valid
connection, I have an asynchronous callback configured using
BeginReceive. Within the BeginReceive declaration, I set the socket
flags to SocketFlags.Partial to allow my callback to be invoked as
soon as it arrives rather tha...more >>
xmltextwriter escaping characters Posted by FabSW at 9/27/2007 3:35:44 PM hi all, i've to save to xml some data stored in sqlserver database,
i've to use iso-8859-1 encoding.
if i write text into xml attributes,
there is some characters that make invalid xml (for example " (147))
xmltextwriter replace character (147) with doublequote (34)
when i write this tex...more >>
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IComparable and generics Posted by teel at 9/27/2007 2:45:34 PM Hi there!
I've got a Parameter (any parameter you can imagine) class used to
store a value. It has minValue, maxValue and the current value.
Parameter can be float, bool, integer and should also be enum. It
looks like this:
public class Parameter<T> where T : IComparable<T>
{
...more >>
Find Name of Function Posted by Mick Walker at 9/27/2007 2:40:48 PM How can I find the name of the current function being executed.
For example, lets say I have the following function
void Blah(int? y){
int z;
try {
z = y;
}
catch(Exception ex){
throw ex
}
}
Which will throw an exception if y is null(Nullable).
I am writing a class to log an...more >>
How To Expose Method From Ascx User Control Posted by Sylvie at 9/27/2007 2:21:26 PM I have
an Aspx page (Name:"PG") (Contains "UC")
and
an Ascx Usercontrol (Name:"UC") (Contains "AspxGrid1")
I wanna expose Aspxgrid1.rowchanged event to Aspx Page, when user vhanges or
clicks on a row in usercontrol's grid, my page must catch this method and
after taking the row Id, I...more >>
What is needed for a web service Posted by TonyJ at 9/27/2007 1:45:02 PM Hello!
I know this is the wrong forum for this question but I think many of you can
answer this easy question.
I have read about web services and I wonder one thing and that is what file
must be put on the web server?
Is it both the asmx file and the code-behind file that must be stored web...more >>
Future of C# Posted by Jon Harrop at 9/27/2007 1:30:58 PM
If Microsoft turn F# into a product and place it alongside C# and VB, will
many people migrate from C# to F#?
--
Dr Jon D Harrop, Flying Frog Consultancy
http://www.ffconsultancy.com/products/?u...more >>
How Can I remove all row from a gridView Posted by DCP at 9/27/2007 12:54:39 PM How Can I remove all row from a gridView
Thanks
PJ
...more >>
Make a TextBox tooltip appear in-place (same as overly wide TreeView node texts) Posted by Richard at 9/27/2007 9:38:13 AM I'm trying to mimic how the TreeView shows a full text inplace tooltip
when the mouse hovers over of TreeView node whose text is truncated
due to skinny form or panel.
In the IDE I have
Text1.text is 'A rather longish bit of text, may a really long
pathname or something similar';
ToolTip1....more >>
Replacing an event Posted by MikeP at 9/27/2007 9:21:46 AM Hi there,
I wrote a replacement for the native .NET class "FileDialog" with my own
"FileOk" event (triggered when the user selects a file and clicks OK). Let's
say I now want to create a derivative called "MyFileDialog" and replace the
"FileOk" event with a new event called "MyFileOk". User...more >>
Dispose and InitializeComponent Posted by Dave Harris at 9/27/2007 8:49:00 AM Theoretically, are there ever any cases or known defects where you should
have to do any of the following to objects created by the designer inside of
InitializeComponent()?
1 - call dispose() on an object
2 - set to null an object
3 - Manually tear down an event
I'm having a dickens...more >>
Thread Timeout Posted by Kevin at 9/27/2007 8:04:48 AM Hi!
Is there anyway to set a timeout for a Thread?
Regards!
...more >>
Creating Install Package for 64 Bit System Posted by Susan at 9/27/2007 7:15:00 AM I am attempting to create an installation package for a 64 bit system with
Visual Studio 2005. The machine on which I am compiling and creating the
package is also 64 Bit. I have the 64 Bit .Net 2.0 Framework SDK along with
the 64 Bit version of Oracle Client, and 64 Bit version of Oracle ODAC...more >>
Dllimport works only in Visual Studio Posted by bram NO[at]SPAM plock.nl at 9/27/2007 6:38:27 AM Hi all,
I have a (for me) strange problem which drives me crazy. I've created
a c# desktop app in visual studio 2005, which uses through dllimports,
methods of an old dll. Afther some tweaking this works fine.
Now my project is finished and i run the 'exe' the dll imports behave
strange, fo...more >>
where and how to declare global variable in vb2005 ? Posted by lokesh kumar at 9/27/2007 2:49:43 AM where and how to declare global variable in vb2005 ?
EggHeadCafe - .NET Developer Portal of Choice
http://www.eggheadcafe.com...more >>
datetime Posted by Hrvoje Voda at 9/27/2007 12:43:24 AM How to convert text from textbox "12.05.1977" into "12/05/1977"? and also
check if the text is in right format before
converting?
Hrcko
...more >>
Is it possible to inspect the return value in the 'finally' part of a try...catch without using a variable? Posted by Polaris431 at 9/27/2007 12:00:00 AM If I have a method like this:
private void DoSomething()
{
try
{
return true;
}
catch{}
finally
{
// Can I inspect the return value here without using a variable?
}
}
Is there something in C# that would allow me to observe the return
value in the 'finally' sec...more >>
Parent-child classes and circular references Posted by Matteo Migliore at 9/27/2007 12:00:00 AM Hi.
I've a problem with parent-child circular references.
Suppose have two classes, Person and Course:
--------------------------
public class Person{
public Person(string name, Course course){
this.name = name;
this.course = course;
}
string name;
...more >>
IIS Automation Posted by Mick Walker at 9/27/2007 12:00:00 AM Hi All,
We are trying to automate the deployment of clients websites using IIS.
At the moment we can create a new virtual directory on the server using:
//Create a virtual directory
System.EnterpriseServices.Internal.IISVirtualRoot vr = new
System.EnterpriseServices.Internal.IISVirtualRo...more >>
MainWindowTitle empty in Vista Posted by JamesB at 9/27/2007 12:00:00 AM Hi
Apologies for the crosspost...
I've written a windows service (c# 2.0) that is used in my workplace to
monitor application usage of our users. It basically gets a list of
processes and associated window titles (if present) and logs these for
management to refer to.
Unfortunately it d...more >>
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