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I think (in fact someone told me some time ago) because C language's (i.e. the grandfather of both Java and C#) assignment, equality test operator pair ({=, ==}) is smarter than ALGOL-60 one (({:=, =}): it implies less typing since assignments are statistically more frequent than equality tests.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
[my articles]
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prasadbuddhika wrote: this might be not related to C#, but i would like to know the reason why ALOGOL-60's assign operator (x:=5,//not x=5) was not followed by the other languages like C# and java .
Possibly because they were based on C style syntax. Pascal use the := syntax, C doesn't.
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Maybe Bell Labs didn't have a colon on their keyboards? (Or card punch systems?)
BCPL uses := for assignement and = for equality.
B uses = for assignment and == for equality.
and it all goes downhill from there.
In my opinion, assignment should be := and equality should be == and a bare = should not be a valid token.
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hi ,
i installed windows service in using installutil ,installing
is succesfull. But the service is giving error while starting ...
it is giving internal windows error or internal service error
can any one tell me how to rectify error ..
Thanks
suman
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Build stable code and log exceptions to the eventlog (yes you've got one for free with your windowsservice  )
Debuging a windows service is .... not nice so you better test your code before integrating it into a windows service.
Most errors are written to the system event log of your OS anyway so maybe have a look at those and try to find more information there.
A common problem is that a windows service runs normaly on special accounts that don't have all those fancy permisions you are used to while coding as admin - for example file access might be forbidden - you can test this by running the service in an administrator account (of course only for test reasons  )
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We've collected a fair bit of code written by different developers, some of who have been lax about disposing Bitmaps after they are done being used. I was wondering if anyone knows how serious a problem that is. Are there any reprocussions to not disposing bitmaps? Won't the GC take care of it all in the long run?
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Winkles wrote: Are there any reprocussions to not disposing bitmaps? Won't the GC take care of it all in the long run?
Yes and yes. It uses more memory than is required until the garbage collector gets to it. If you don't dispose of it properly the garbage collector will require two passes at the object (meaning it will stay in memory longer). Also large items, such as bitmaps, go directly into the generation 2 heap which is cleaned up less frequently (meaning it will stay in memory longer).
Bottom line, slap your lax developers.
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Colin Angus Mackay wrote: Also large items, such as bitmaps, go directly into the generation 2 heap which is cleaned up less frequently (meaning it will stay in memory longer)
Actually, large objects will go on the large object heap, which is different than Gen2. Also, the LOH isn't compacted but it is collected everytime Gen2 is collected.
Scott.
—In just two days, tomorrow will be yesterday.
—Hey, hey, hey. Don't be mean. We don't have to be mean because, remember, no matter where you go, there you are. - Buckaroo Banzai
[ Forum Guidelines] [ Articles] [ Blog]
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 Looks like I'll have to reread the chapter on garbage collection - I thought Gen2 was the same as the LOH (just synonyms for each other)
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Hi Guys,
If you any idea regarding developing application in c# like Visio does
Drag and drop the shapes
Resize
Rotate .
Please let me know as soon as possible.
Regards
subash
Subash
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nhss wrote: Please let me know as soon as possible.
No. The tone of the question is too rude for me to be bothered.
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Hello everybody,
I want to design only one master page for different type of users. Menu items should display accoding to permission for a user type. To design, i have used menu tool. I want to connect the menu with different sitemaps, because sitemap stores xml data. I will provide all sitemap with different names menually. When someone logging in it will check the user type and set menu items accordingly.
But sitemap datasource by default connect with web.sitemap and shows menu. There is no option found to menually set other sitemaps for a menu.
How can i link with other sitemap at runtime? And how can i design this type of master page? If there is any other process, please tell me.
Please help me.........
Thank you in advance.
Dipak
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You can do this by adding multiple sitemap providers..
1. Add a new provider in web.config (Here XmlSiteMapProvider1 is the new one)
<siteMap defaultProvider="XmlSiteMapProvider" enabled="true">
<providers>
<add name="XmlSiteMapProvider" description="default." type="System.Web.XmlSiteMapProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" siteMapFile="web.sitemap" securityTrimmingEnabled="true"/>
<add name="XmlSiteMapProvider1" description="extra." type="System.Web.XmlSiteMapProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" siteMapFile="web2.sitemap" securityTrimmingEnabled="true"/>
</providers>
</siteMap>
2. You can point different SiteMapProvider to the sitemapdatasource
<asp:sitemapdatasource SiteMapProvider="XmlSiteMapProvider1" id="SiteMapDataSource1" runat="server" startingnodeoffset="0" />
*jaans
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Where can I find online code examples so I don't have to keep refering to my books when I want to check that my code is right? Yes I know, being lazy and what not, but deep down, we all want the quickest shortest route!
Shot
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MSDN? Alternatively, make use of the code snippets manager in Visual Studio.
Paul Marfleet
"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush
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I want to be able to take only certain data from a .txt file and display it on my page... the example is this. I want to be able to select all the data inserted in that .txt file where there is a specific date ie. 30 January 2008. Where I have the problem is selecting data that falls across more than one lines in the text file, remembering that the next date is coming up a couple lines later and I don't want to use that data that coincides with that date.
Any advice?
Thanx
Dan
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Loop through the file line by line. Take which bits of data you need. Without knowing more about the file structure I can't be of further help.
Paul Marfleet
"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush
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What if I dont know what data I need? All I know is the date that links me to whatever data coincides with that date. What can I use as a exit from the loop in that case?
example of text:
26 January 2008
Go to Dentist
Eat toast
27 January 2008
Sleep
Write books
28 January 2008
...
and so on...
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Being ill at home I thought I'd write you the pseudocode for how to do this.
So this is one of the ways you can do this - just pop the relevant C# in there:
displayline = false
while not readline end of file
if line is date
if date is selecteddate
displayline = true
else
displayline = false
endif
endif
if displayline
display line to screen
endif
while end
You always pass failure on the way to success.
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I want with click on Image get cartesian cordinate from image(X,Y)in c#
please help me
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Just use the MouseDown-event of the control containing your image
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Hi,
I am doing an application in WPF. The application is in maximized state with no minimize and maximize box.However on double clicking over the tool bar, the application got minimized. I have to always keep it in maximized state that would work in all resolutions. Please help me.
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You can have the line Me.WindowState = FormWindowState.Maximized in your
Form1_SizeChanged event.
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Hai Everybody,
I have a dataset and I am binding the same to a combo box in windows application.
I want a item named "Select" to be in the top and it should be the default one.
Can any one tell me how to add an extra item after binding the combo box with the datasource.
Thanks in advance.
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