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Re: visual source safe does not get correct file.

Pete O'Hanlon4-Jul-07 1:48

4-Jul-07 1:48

No problem - glad to help.

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D2raghu4-Jul-07 0:37

4-Jul-07 0:37

well i have a visual studio created setup. Installation goes fine. The application creates some data file in its installation folder.

well when i uninstall the application using the "Add/Remove programs" wizard of windows xp, the data files created by application are not deleted.
plzz help

Re: uninstallation

Colin Angus Mackay4-Jul-07 0:57

Colin Angus Mackay

4-Jul-07 0:57

Because the installer didn't put the data file there. And neither should your program. If it needs to create data files it needs to put them in the correct place - and a subdirectory of Program Files isn't it.

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Preserving the old values in an array

M. J. Jaya Chitra4-Jul-07 0:37

M. J. Jaya Chitra

4-Jul-07 0:37

Hai everybody,

Can you please tell me how to preserve the existing values in an array while re-dimensioning.
(In VB.Net we are having "Preserve" keyword)

Best Regards,
M. J. Jaya Chitra

Re: Preserving the old values in an array

Colin Angus Mackay4-Jul-07 0:50

Colin Angus Mackay

4-Jul-07 0:50

M. J. Jaya Chitra wrote:
Can you please tell me how to preserve the existing values in an array while re-dimensioning.

I presume you mean resizing.

Arrays are not resizable in C# (nor in VB.NET, incidentally. It is a trick to allow you to think they are resizable).

If you need a resizable array use something like an ArrayList

But, if you do need to make the array bigger then create a new one, copy the values over, and then change your existing references to the new array. The old one will drop out of scope and be picked up by the garbage collector.

Upcoming events:
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Re: Preserving the old values in an array

M. J. Jaya Chitra4-Jul-07 0:54

M. J. Jaya Chitra

4-Jul-07 0:54

Colin Angus Mackay wrote:
use something like an ArrayList

Thank you for your solution

Best Regards,
M. J. Jaya Chitra

Re: Preserving the old values in an array

Dave Doknjas4-Jul-07 4:40

4-Jul-07 4:40

.NET 2 has an Array.Resize static method which behaves identically to the ReDim Preserve operation in VB. It only works for 1-dimensional arrays however. But unless you really need a proper array, one of the collections such as List<t> are probably better suited.

David Anton
www.tangiblesoftwaresolutions.com
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kibromg4-Jul-07 0:27

4-Jul-07 0:27

Hi All,
I have a stored procedure that returns a dataset( which contains two tables).

I have to run the stored procedure a couple of times and need to keep the all the datasets.

Is is possible to merge the result of a new dataset in to previous one as many as i can?

dsnew.merge(dsold)
dsnew1.merge(dsnew)
dsnew2.merge(dsnew1) etc.........

so that i can have all the results of the datasets in Dsnew2

Thanks

Re: merge Datasets

J4amieC4-Jul-07 0:35

4-Jul-07 0:35

RTFM?

http://msdn2.microsoft.com/en-us/library/system.data.dataset.merge.aspx[^]

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How to get answers to your questions[^]

Re: merge Datasets

kibromg4-Jul-07 0:52

4-Jul-07 0:52

Thanks very much,

My problem is when i merge one dataset with the previous one, the content of the previous dataset disapear.hence i only get one dataset which is the last merge operation.
I keeps loosing the prevoius merge operation.

Please if you can give me an example, on how i can retain the previous merge.

Thanks

Problem with image button

vamsimohan214-Jul-07 0:26

4-Jul-07 0:26

I have a java script tagged to a asp image button server control , the java script fires and works perfectly in IE but not in firefox ,Any asumptions.
(I am .net 1.1 and and added the java script in code-behind using attributes)

Thanks In Advance

Re: Problem with image button

Michael Sync4-Jul-07 0:45

4-Jul-07 0:45

It would be great if you dont post duplicate post in our forum. thanks.
here is ur original post..

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

If you want to thank me for my help, please vote my message by clicking one of numbers beside "Rate this message". Why vote? Plz Read it here. Thank you.

Re: Problem with image button

vamsimohan214-Jul-07 0:55

4-Jul-07 0:55

I am Sorry for that i missed a word in the previous post so i posted again

Thanks In Advance

Re: Problem with image button [modified]

J4amieC4-Jul-07 2:50

4-Jul-07 2:50

vamsimohan21 wrote:
I am Sorry for that i missed a word in the previous post so i posted again

There is an ~~edit~~ modify link, for future reference!

-- modified at 7:59 Wednesday 4th July, 2007

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How to get answers to your questions[^]

how to get time to first byte.

SakthiSurya4-Jul-07 0:26

4-Jul-07 0:26

Hi
Please help me to get time to first byte, for a web request using

HTTPWebResponse.

With Thanks,
Sakthi.

Problem with image button

vamsimohan214-Jul-07 0:24

4-Jul-07 0:24

I have a java script tagged to a <asp:imagebutton> control , the java script fires and works perfectly in IE but not in firefox ,Any asumptions.
(I am .net 1.1 and and added the java script in code-behind using attributes)

Thanks In Advance

Re: Problem with image button

J4amieC4-Jul-07 0:36

4-Jul-07 0:36

The javascript code is probably using some IE-specific functionality. Without showing the code it is 100% impossible to answer your question more fully.

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How to get answers to your questions[^]

Re: Problem with image button

Michael Sync4-Jul-07 0:43

4-Jul-07 0:43

Please show the code to us.. maybe. we might give some advices what you need to change in your code.

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

If you want to thank me for my help, please vote my message by clicking one of numbers beside "Rate this message". Why vote? Plz Read it here. Thank you.

Re: Problem with image button

vamsimohan214-Jul-07 0:58

4-Jul-07 0:58

I am sorry that i am in situation that I would not be able to expose the code, but the for all other controls in the same page in firefox java script works fine except for the image button control.

Thanks In Advance

Re: Problem with image button

J4amieC4-Jul-07 2:51

4-Jul-07 2:51

vamsimohan21 wrote:
I am sorry that i am in situation that I would not be able to expose the code,

I am sorry that I am in situation that I would not be able to answer the question.

D'Oh! | :doh:

D'Oh! | :doh:

(You can't honestly expect anyone to solve your coding issue without seeing the code, do you?)

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How to get answers to your questions[^]

Animation timing

Jon Hulatt4-Jul-07 0:00

4-Jul-07 0:00

Hi All,

i'm trying to implement animation in an app. The frame rate of the animation needs to be variable. To implement this, i have a thread which sleeps for 1/fps seconds, and when it wakes it invalidates the window. Then, the onpaint handler draws the next frame.

Whilst this approach works ok at low frame rates, when things speed up, the animation gets choppy (due to the way in which the message queue is processed).

Is there a better approach? I want to be able to draw at reasonably precise times. Would DirectDraw help? i've never looked at directx, but would be prepared to if it offered a solution to my problem.

Thanks

slip

using System.Beer;

Re: Animation timing

Luc Pattyn4-Jul-07 1:56

4-Jul-07 1:56

Hi,

you may find some suggestions in my timer article...

Smile | :)

Smile | :)

Luc Pattyn

[My Articles] [Forum Guidelines]

Re: Animation timing

Jon Hulatt4-Jul-07 2:18

4-Jul-07 2:18

Thanks, but I understand why the animation is jerky - the kernels scheduler runs on a similar timer to what you describe.

I'm just wondering how other apps which animate do it so smoothly - eg windows media player.

using System.Beer;

Re: Animation timing

Luc Pattyn4-Jul-07 2:26

4-Jul-07 2:26

Hi,

I dont know how WMP does what it does. This comes to mind:
- use the right kind of timer
- use double-buffering
- make sure everything you need is in memory before you need it
- precalculate the next frame, so the only real-time thing to do is show it
- possibly work with thread priorities (not recommended if you are not familiar with it).

Smile | :)

Smile | :)

Luc Pattyn

[My Articles] [Forum Guidelines]

Re: Animation timing [modified]

Jason Morley4-Jul-07 1:57

4-Jul-07 1:57

Hi Slip

I have recently worked on a solution that is similar to your needs. I used threads that animated a user control containing other controls, in fact I had multiple user controls being animated on the same form, with different threads.

I used delegates to access a number of variables on the form from my threads.

Also in the form I declared a volatile integer like this:-

private volatile int componentOnPaint

And a public method which will be used by a delegate to return the above value.

Then in your override method for OnPaint in the form, increment the componentOnPaint integer, this way you know how many times the form has been re-painted.

Before your thread has invalidated the form get the componentOnPaint value, invalidate the form and then sleep for a short time using Thread.Sleep(30) (this allows the thread to be re-painted). At the next line of execution check the componentOnPaint value again, if it is greater than before, then continue. Otherwise loop and sleep again, until the value is greater and the form is repainted. Then you would use Thread.Sleep again for a fixed time depending on the animations frame length.

To make the animation smoother, use another delegate to get the delay time (milliseconds) required in between animation cycles. Use DateTime.Now to get the time before you invalidated your form, and use DateTime.Now to get the time after componentOnPaint was greater.

Subtract the first value from last eg...

TimeSpan drawTime = AnimateLastStart - AnimateLastDrawn;

Then reduce your delay time by the time it took to refresh your form... ie...

<br />
Thread.Sleep(standardTime-drawTime.Milliseconds)

This worked for me, using volatile earlier means the variable can act as a semaphore accessible from any thread (hence volatile), so you know if the form has been drawn and you shouldn't miss any frames. The time manipulation should just make your animation smoother.

I hope this helps Smile | :)

Smile | :)

Jason

-- modified at 7:04 Wednesday 4th July, 2007

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