C# Discussion Boards - CodeProject

Re: media player library

Abhinav S31-Jan-12 6:48

Abhinav S

31-Jan-12 6:48

If you can use the XNA framework (Microsoft.Xna.Framework.Media), try with the MediaLibrary class[^].

Re: media player library

idiot prince31-Jan-12 7:30

idiot prince

31-Jan-12 7:30

hey i want just code for scaning a folder through which i can use it sub folder and i directly add this to my media player.....i m using wpf ....just feature like windows media player\ FIle \manage library and we can add song to our library

Re: media player library

Dean Oliver31-Jan-12 7:59

Dean Oliver

31-Jan-12 7:59

take a look at these articles below
http://www.nerdparadise.com/tech/csharp/mediaplayerreplace/1/[^]
Custom Media Player in WPF (Part 1)[^]
http://computer-programming-languages.factoidz.com/creating-your-own-custom-wpf-media-player-exploring-the-hard-disk/[^]
For help creating a media library check out this link
Sonic: A WPF (hybrid smart client) searchable media library[^]
check out the filesystemwatcher as well for detecting changes in your library etc:
Advanced FileSystemWatcher[^]
Hope this helps you with some ideas Smile | :)

Deployment issue in Win7

siddisagar31-Jan-12 5:09

siddisagar

31-Jan-12 5:09

When we install the Windows application setup file then it is giving different results.

If I install in Windows XP it is copying the files in the path C\Programme Files\Application. In XP application is working without any issues in all machines.

But if I install same setup in Win7 then it is copying in the C\Programme Files\ only.All the files are placed in C:\Programe files and application is not working.

If I copy individual files and paste inside the C:\Programme Files\Application then again it started working.

Request you to help me in resolving this issue.

Thanks in advance.

Re: Deployment issue in Win7 - Repost

Richard MacCutchan31-Jan-12 6:09

Richard MacCutchan

31-Jan-12 6:09

You already posted this question here[^]; please use one forum only.

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

Creating tolerance-lines for a given array using two delta-values

T.Mann1131-Jan-12 3:42

T.Mann11

31-Jan-12 3:42

Hi,
i am trying to create for a given array two new arrays which are then used as tolerance-lines for limit-check.

This should run in three steps
1. The first function captures a waveform (from a scope) of a good part - this is what i already have.
IN: -
Out: double[] Waveform

2. Then the second function gets this “good” waveform plus two Delta-values and should create two output-tolerance-arrays
IN: double[] Waveform
int Delta-X
double Delta-Y

OUT: double[] UpperLimitLine
double[] LowerLimitLine

3. Now I capture again a waveform of a new part and compare its waveform against the two tolerance-arrays that were previously created.
IN: double[] Waveform
double[] UpperLimitLine
double[] LowerLimitLine

OUT: bool Result (is True if Waveform is between the limits)

If I only do a simple + and – for each point in the first array then this of course also generates two limit-lines BUT if there is a very small peak in the array then this is not working any more.
Imagine we have a measurement of 1000 points which is always 0 – only at point 500 the value is 10.
This means now that all other measurements also must have the peak at exactly point 500 to pass the tolerance-check.

This is why I need to have two delta-values to make the limit-array also wider to the left and right side and not only up and down.

The problem is: How can i do this with C#?

Thanks for all help

Re: Creating tolerance-lines for a given array using two delta-values

Luc Pattyn31-Jan-12 3:59

Luc Pattyn

31-Jan-12 3:59

Hi,

this isn't a C# question, it is more of a conceptual question. This might work for you, it is looking at a couple of the neighbouring points (it is pseudo-code, not C#!):

define a bell-like shape over a small interval with a maximum of 1, say:

bell[-3]=0.1;
bell[-2]=0.3;
bell[-1]=0.5;
bell[ 0]=1.0;
bell[+1]=0.5;
bell[+2]=0.3;
bell[+3]=0.1;

now calculate the upper bound:

foreach(int x in xRange) {
    max[x]=good[x];
    foreach(int i in bellRange) {
        int y=good[x+i]+yDelta*bell[i];
        if (y>max[x]) max[x]=y;
    }
}

and simimlar for lower-bound.

Smile | :)

Luc Pattyn [My Articles] Nil Volentibus Arduum

Fed up by FireFox memory leaks I switched to Opera and now CP doesn't perform its paste magic, so links will not be offered. Sorry.

Convertion from .XLS to .XML through c# code

Member 824179730-Jan-12 23:23

Member 8241797

30-Jan-12 23:23

Can anyone help me out in Converting a xls file which is given as i\p to a .xml file and back to .xls.

Re: Convertion from .XLS to .XML through c# code

Richard MacCutchan30-Jan-12 23:43

Richard MacCutchan

30-Jan-12 23:43

Here[^] is a starter article on reading Excel files. You can create your XML by using an XmlWriter[^] or XmlTextWriter[^]. Going back the other way is just a reverse of these processes.

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

Re: Convertion from .XLS to .XML through c# code

Abhinav S31-Jan-12 0:41

Abhinav S

31-Jan-12 0:41

Convert Excel to XML file/XML Schema, and validate Excel against XML Schema[^] is a good read.

Calling .dll from a C# application (problem when outside VS2010)

Kaare Tragethon30-Jan-12 22:51

Kaare Tragethon

30-Jan-12 22:51

Hi all,

I have a C# application that uses vpc.dll. The application works without problems when running in VS. I have added a reference to the vpc.dll which reisdes in the project location (the same path as the .exe).

However, when I install the application on a client machine (using SetupProject in VS where I have included the vpc.dll to the application folder) the call to vpc.dll fails. Basically it will not run at all.

I'm fairly new to computer programming, but I find it strange that it works inside VS, but not when installed on client machine.

Thanks for any pointers!

Re: Calling .dll from a C# application (problem when outside VS2010)

Abhinav S31-Jan-12 0:42

Abhinav S

31-Jan-12 0:42

If this is a COM dll, you will need to register it on the client machine.
Include the registration process in the setup install program.

Re: Calling .dll from a C# application (problem when outside VS2010)

Kaare Tragethon31-Jan-12 1:14

Kaare Tragethon

31-Jan-12 1:14

Hi,
I have tried to register the .dll but I get an error message like "DllRegister" was not found, not a valid DLL or OCX file.... Not sure what this means but I've tried this both on the development machine and on the client machine.

Re: Calling .dll from a C# application (problem when outside VS2010)

Dave Kreskowiak31-Jan-12 2:12

Dave Kreskowiak

31-Jan-12 2:12

You said you set a reference to this .DLL?? That means it's COM-based.

But now you're saying that if you execute "REGSVR32 vpc.dll" it complains that it can't find DllRegister. That means it's NOT COM-based.

I get the feeling you didn't set a reference to it because what you're saying is contradictory to itself.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: Calling .dll from a C# application (problem when outside VS2010)

Pete O'Hanlon31-Jan-12 2:34

Pete O'Hanlon

31-Jan-12 2:34

I get the feeling (having tried to find out what vpc.dll was) that he's followed these[^] steps, so it's the wrapper for the COM client.

*pre-emptive celebratory nipple tassle jiggle* - Sean Ewington

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

Re: Calling .dll from a C# application (problem when outside VS2010)

Dave Kreskowiak31-Jan-12 4:20

Dave Kreskowiak

31-Jan-12 4:20

Ahh, now it makes sense.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: Calling .dll from a C# application (problem when outside VS2010)

Pete O'Hanlon31-Jan-12 2:33

Pete O'Hanlon

31-Jan-12 2:33

Kaare Tragethon wrote:
the call to vpc.dll fails. Basically it will not run at all.

My suspicion is that you are missing something that vpc.dll is dependent on. Is this Virtual PC that you are trying to run?

*pre-emptive celebratory nipple tassle jiggle* - Sean Ewington

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

Re: Calling .dll from a C# application (problem when outside VS2010)

Kaare Tragethon31-Jan-12 3:29

Kaare Tragethon

31-Jan-12 3:29

You are correct, it is VirtualPC. I've "extracted" a .dll from the vpc.exe file (using tlbimp vpc.exe /out vpc.dll).

I've tried searching google A LOT, but there's very little (or no) documentation on this that I can find.... The only thing I could find was the above "extract" method....

Thanks!

Re: Calling .dll from a C# application (problem when outside VS2010)

Pete O'Hanlon31-Jan-12 3:38

Pete O'Hanlon

31-Jan-12 3:38

Right - chances are then that the actual Virtual PC client isn't installed on the end users machine. Basically, your DLL is a wrapper for the COM calls - it's not a COM component so you don't need to register it, but it does need the actual COM object registered; in this case Virtual PC.

*pre-emptive celebratory nipple tassle jiggle* - Sean Ewington

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

Re: Calling .dll from a C# application (problem when outside VS2010)

Kaare Tragethon31-Jan-12 5:24

Kaare Tragethon

31-Jan-12 5:24

I see, thanks for the help!! Smile | :)

Re: Calling .dll from a C# application (problem when outside VS2010)

Pete O'Hanlon31-Jan-12 5:38

Pete O'Hanlon

31-Jan-12 5:38

No problem. I'm glad I could be of assistance.

*pre-emptive celebratory nipple tassle jiggle* - Sean Ewington

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

pdf auto downloader

gavindon30-Jan-12 8:55

gavindon

30-Jan-12 8:55

I need to create a small program to
A. go to a website and login
B. Download a pdf to specified folder.
C. strip the pdf, drop that data to a database(SQL)

I am not looking for a gimme codezz.. just if anybody has a link to a couple of tutorials or articles that would show me the basics? I have not found any as of yet.(possible that my Google foo is down today its been a rough morning.) Mainly the first two parts that I have issues with, the last one I have something that somewhat works already.(but wouldn't hurt to understand it better.)

Thanks in advance for any suggestions given..

Let's face it, after Monday and Tuesday, even the calendar says WTF!

Be careful which toes you step on today, they might be connected to the foot that kicks your butt tomorrow.

You can't scare me, I have children.

Re: pdf auto downloader

harold aptroot30-Jan-12 9:08

harold aptroot

30-Jan-12 9:08

A. might be hard depending on how annoying the website is, usually you just send a POST somewhere and then handle the cookies (see HttpWebRequest) but sometimes the site forces you to use javascript (may have to use a WebBrowser Control, which likes to steal focus (even when hidden) and generally get in your way).
B. is easy if you could use a HttpWebRequest in step A, a WebBrowser control again likes to get in your way and makes things hard.

Re: pdf auto downloader

gavindon30-Jan-12 9:09

gavindon

30-Jan-12 9:09

yeah A is my biggest problem so far.. the rest I think I can figure out based on what I have, but I have to get past logging in and then going to the correct page..

Re: pdf auto downloader

harold aptroot30-Jan-12 9:19

harold aptroot

30-Jan-12 9:19

Ok typically that would look like:
Create a HttpWebRequest, point it towards the submit location of the login form, change the method to POST, use a CookieContainer, write some data (with percent encoding), then get the response.
Then just download the file with an other HttpWebRequest. Don't bother navigating. But send the cookies, otherwise you're not logged in anymore.

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