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hi all,
i am developing an application (a 15 days trial version).
can someone tell me how can i handle the situation, when the user change the system date, the application must not start.
how can i detect the changes in system date.
or if someone have any other logic to handle it anyway.
thanks in advance
help everyone
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Every time the app stores, you need to store the date somewhere. If the date goes backwards, you store that it's gone backwards and the app therefore will no longer start.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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thanks christian
i am thinking about to use file system watcher, what do u say
and i am also keeping an eye on the date and time as well as u say.
but their is a problem, if the user install the product on day 1, after 15 days he change the date and can use the product. how can i resolve that any idea.
thanks again
help everyone
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eyes2007 wrote: i am thinking about to use file system watcher, what do u say
What would watching the file system achieve?
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any change in system date
thats just an idea and i have to read more about that component.
help everyone
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eyes2007 wrote: help everyone
I don't see what the point is. I told you what to do, and you're talking about something else that won't work.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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eyes2007 wrote: i am thinking about to use file system watcher, what do u say
Sounds bizarre to me. Why not do what I suggested instead ?
eyes2007 wrote: but their is a problem, if the user install the product on day 1, after 15 days he change the date and can use the product. how can i resolve that any idea.
Refer to my original answer.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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here is how I would do it (wich resembles what christian said I think)
on installing the programme --> store the current date
everytime the programme starts --> store the current date in second location
now on startup off you'r programme you do 2 checks:
first check to see if the current date is before the date stored in location 2
if so --> user had turend clock back and trial ends
if not --> do check 2
check to see if the current date isn't 15 days after the date stored at location 1
if so --> trial has ended
if not --> store date in location 2 and start programme
to keep the user from hacking you'r programme (or at least make it harder too do) you might want to encrypt the date's
hope this helps
Credit to Christian who gave me this idea and I think this was also what he meant in his reply
If my help was helpfull let me know, if not let me know why.
The only way we learn is by making mistakes.
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I need to add some set of values in combo box.
eg :
Red
Blue
Green
Yellow
violet
I need red item to bold in the combo box. some one help me.......
Thanks & Regards
Kumaran
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You need to owner draw the combo box
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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i want to be able to display the users office version(2000,2003 xp ect) and office applications like word, excel in a check box if they have it. i have seen the code in c++ i guess a vb.net its ppossible too
thanks
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Various ways. You could look at registry keys.
"The clue train passed his station without stopping." - John Simmons / outlaw programmer
"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon
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I need help!!
An Application that was written by someone before me used the Infragistics controls. These controls have expired and my company have now purchased the full licence.
How can I change the licence in the solution? When I build the solution I get an "Unable to resolve type" error. The file being referenced is the Licences.licx.
Can someone please give me advice as to fix it? I am on a very very short deadline...
Thank you in advance!!
Illegal Operation
Making Computer Software Talk
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You should speak to Infragistics tech support. This question has nothing to do with the VB(.NET) language.
Paul Marfleet
"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush
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I created user control and dropped textbox over there.
I want the control to use all degault properties which windows Textbox provides + defined by me
right now it doesn't show even text property !
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If you inherit the textbox class then U will be able to use all the default properties of text box
Hope this will help you
Best Of Luck
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1.How to pop up a window in web application ?
i have written a function like this :
function openpopup(popurl)
{
var winpops = window.open (popurl,"","width 700, height = 400,toolbar = 0,status = 1 ,resizeable = 1, scrollbar = 1 ")
}
where should i call this function ?
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Depends, where do you want to see a popup ?
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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when i click a button i want to see the popup and also when i minimise the page if any message/ data is send to the page the page should be popped up
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Aparna.B wrote: when i click a button
onClick of the button
Aparna.B wrote: when i minimise the page
onBlur of the window
Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips
A pessimist sees only the dark side of the clouds, and mopes; a philosopher sees both sides, and shrugs; an optimist doesn't see the clouds at all - he's walking on them. --Leonard Louis Levinson
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in wat format should we give
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Is it possible to persist the current com component (that is to prevent other programs from re-registering a different version of the same component).
Thanks
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No. Usually, an older version of a component won't replace a newer version. But there is nothing to stop a newer one from replacing an older version of a component.
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In my application I am using tabbed browsing because there are multiple forms in my application. Each tab has a form. I noticed that when I added a table adapter to the form the binding navigator was added to the form, not the tab page.
Do I need to use the binding navigator?
I noticed that when I delete the binding navigator I get errors and then the form designer will not come up.
I am going to have to add multiple table adapters to this one form, possibly multiple table adapters to one single tab page.
Will it add multiple binding navigators or can I use the same binding navigator with multiple table adapters?
I have another post on here that shows the errors I am getting when I get rid of the binding navigator.
The subject line of the other post is "Problems with Designer Generated Code in VB 2005"
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