Datalist drag and drop - C# Discussion Boards

Laddie13-Apr-08 4:31

13-Apr-08 4:31

Hi Matthew,

Thanks for the reply.
I should be dumb .I forgot the thing." Assignment of result"

Any way thanks for your time

Thanks
Laddie

Kindly rate if the answer was helpful

Re: Question on ?: operator

GuyThiebaut13-Apr-08 4:34

GuyThiebaut

13-Apr-08 4:34

Yuo are calling the WriteLine method of Console which is not an:

Laddie wrote:
assignment,call,increment, decrement, and new object expressions

Try:

if (x > y)
    {
     Console.WriteLine("x is greater");
    }
else
    {
     Console.WriteLine("y is greater");
    }

You always pass failure on the way to success.

Creating a subform

Muhammad Gouda13-Apr-08 2:57

Muhammad Gouda

13-Apr-08 2:57

Can I create a subform in C#
In other words, can I put a form as a control on another form (like MS Access)

Mohammed Gouda
foreach(Minute m in MyLife)
myExperience++;

Re: Creating a subform

Luc Pattyn13-Apr-08 3:04

Luc Pattyn

13-Apr-08 3:04

Hi,

yes.
a form of the same app is easy: see the Form.TopLevel property.
a toplevel window of another process is more difficult; I don't recall the details; you'll need
the window handle and call some win32 function. It has been discussed on one of the CP forums
some days ago.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
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Re: Creating a subform

Ravenet13-Apr-08 16:01

Ravenet

13-Apr-08 16:01

You are correct.

Cheers,Earn and Enjoy
RRave
MCTS,MCPD
http://ravesoft.blogspot.com

Decoding, encoding, editing video files

dj4dan12-Apr-08 23:21

dj4dan

12-Apr-08 23:21

Hi all

I'm stuck with a problem. I need to open video clips in my project, cut several clips from that video, and then encode those clips back to one video.

Opening and playing only those selected clips as part of the original I've figured out, but how do you output that back to an video clip.

Thanx

Re: Decoding, encoding, editing video files

Thomas Stockwell13-Apr-08 6:56

Thomas Stockwell

13-Apr-08 6:56

You can't do this natively in .NET, you will have to rely on third party SDKs.

Possibly consult the Windows Media Player SDK, Direct X SDK, or google for a SDK.

Regards,
Thomas Stockwell

Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.

Visit my homepage Oracle Studios[^]

Datalist drag and drop

dabuskol12-Apr-08 22:41

dabuskol

12-Apr-08 22:41

Hi,

Can anyone help me on how to drag and drop an or value from one datalist to another
in WEB application. Most of the example are in Windows Application which has mouseup,mouse_startdrag event.
If you have any link please let me know.

Thanks
Dabuskol

Dabsukol

Re: Datalist drag and drop

DanB198313-Apr-08 12:34

DanB1983

13-Apr-08 12:34

Hey

This needs doing client side, google AJAX drag and drop or AJAX datagrid drag and drop and see what it says.

Hope thats of some use.

At university studying Software Engineering - if i say this line to girls i find they won't talk to me

Dan

ListView Event Trigger

Ian Uy12-Apr-08 22:05

Ian Uy

12-Apr-08 22:05

Good Day,

I have a ListView and I want to display a message box when an item is added.

Is there an EVENT that is being triggered when an item is added into the ListView?

Thanks!

Re: ListView Event Trigger

Zoltan Balazs13-Apr-08 7:33

Zoltan Balazs

13-Apr-08 7:33

No there is no event for that.
But it can be done. For example derive from the ListView and define an IBindingList[^]member to create a data bound listview. After that respond to the IBindingList.ListChanged event.
Also there is an article here[^] that discuses something similar.
Hope it helps!

Work @ Network integrated solutions | Flickr | A practical use of the MVC pattern

Table control in C# application

Knowledgestudent12-Apr-08 21:28

Knowledgestudent

12-Apr-08 21:28

Hi there,
is there a table control can be used in C# form in order to contain data I put during run time ( not data base table)
I need the table to organize the output ( which is some calculations performed by the application,

I read somewhere that there is a table control but must be added and referenced (dll), but I do not how!! Sniff | :^)

help is appreciated

thanks in advance

There is always something to learn

Re: Table control in C# application

Thomas Stockwell13-Apr-08 6:58

Thomas Stockwell

13-Apr-08 6:58

[edit: misread table control for tab control]

Their is a table control which can either be a listview with detail view or the grid control. They are both included in the standard System.Windows.Forms namespace.

C++ to C# [modified]

sreecahitu12-Apr-08 18:29

sreecahitu

12-Apr-08 18:29

Hello all,
We are going to start a migration project, i,e from C++ to C#, i do not have any idea on C++ absoultely, there would be many problems while converting pointers, Multiple inheritance in C++ and etc, could anyone help me in providing some information about the issues in converting the C++ code to C# code?

modified on Sunday, April 13, 2008 12:59 AM

Re: C++ to C#

Tjie Pouw12-Apr-08 19:45

Tjie Pouw

12-Apr-08 19:45

if you want to have a clean result of the C# version, i don't think it can be done the way you have imagined, by converting the pointer, multiple inheritance and so on.
you have to understand first the whole idea what is in the program you want to convert in C++ version, and then redesign it in C# version. but unfortunately for you, you have to understand first the C++ version.

Re: C++ to C#

pmarfleet13-Apr-08 3:09

pmarfleet

13-Apr-08 3:09

sreecahitu wrote:
We are going to start a migration project, i,e from C++ to C#, i do not have any idea on C++ absoultely

How can you possibly undertake this work if you don't understand C++? Do you seriously expect to gain an understanding of such a complex language from a single forum post?

Your company has serious problems if people are assigned to projects that they don't have the technical skills for.

Paul Marfleet

"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush

Re: C++ to C#

Christian Graus13-Apr-08 11:22

Christian Graus

13-Apr-08 11:22

pmarfleet wrote:
Your company has serious problems if people are assigned to projects that they don't have the technical skills for.

That's how it's done nowadays, have you not noticed ?

Christian Graus

Please read this if you don't understand the answer I've given you

"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 )

Re: C++ to C#

Dave Doknjas13-Apr-08 12:34

Dave Doknjas

13-Apr-08 12:34

We produce a product which assists with this (named very creatively as 'C++ to C# Converter'), however as the others have noted it is futile to attempt this if you don't already have a very good grasp of C++. A converter helps with the grunt work, but the most complex aspects of conversion are the areas that often need some manual adjustments and if you don't know C++ you'll have great difficulty ensuring that the original functionality is preserved. Also, some C++ code simply cannot be converted to C#.

David Anton
http://www.tangiblesoftwaresolutions.com
C++ to C# Converter
C++ to VB Converter
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Instant C#: VB to C# converter
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Re: C++ to C#

Ravenet13-Apr-08 16:06

Ravenet

13-Apr-08 16:06

Dear Guy

i have one suggestion for this, y u need convert ur project to C#?.C# have great feature p/Invoke.So uc an invoke in ur c++ dll function within C#. don't need convert to ur code , create unmanaged dll, then call in c# code with P/Invoke.

Cheers,Earn and Enjoy
RRave
MCTS,MCPD
http://ravesoft.blogspot.com

Can someone tell me how to solve this problem?

Silvyster12-Apr-08 17:52

Silvyster

12-Apr-08 17:52

I'm reading a text file using a stream read and my code goes like this

<br />
FileStream file = new FileStream("c:/data/theData.txt", FileMode.Open, FileAccess.Read);<br />
StreamReader streamReader = new StreamReader(file);<br />
<br />
// read the content of the first line of the data text file<br />
String line = streamReader.ReadLine();<br />
<br />
while (line != "")<br />
{<br />
// check the value of the line<br />
if (line.Equals("<data>"))<br />
{<br />
..... // code here<br />
}<br />
<br />
// read the next line of the text file<br />
line = streamReader.ReadLine();<br />
}</data>

the problem is that whenever i run my program, this error occurs on runtime:
"Object reference not set to an instance of an object" and it's pointing at the
"if(line.Equals(""))"... what's wrong? i used to do this in java and it works..

Re: Can someone tell me how to solve this problem?

Christian Graus12-Apr-08 18:24

Christian Graus

12-Apr-08 18:24

Silvyster wrote:
while (line != "")
{
// check the value of the line
if (line.Equals(""))

Why are you checking it both ways ? What happens if you step through the code ? Why are you using .Equals ?

File.ReadAllLines is the easiest way to get your file as an array of strings.

Re: Can someone tell me how to solve this problem?

PIEBALDconsult13-Apr-08 5:32

PIEBALDconsult

13-Apr-08 5:32

Silvyster wrote:
streamReader.ReadLine();

As the documentatio states:

"
Return Value
The next line from the input stream, or a null reference (Nothing in Visual Basic) if the end of the input stream is reached.
"

Ordinarily, reading through a text file and doing something with the non-empty lines would be written as:

String line ;

while ( ( line = streamReader.ReadLine() ) != null )
{
    if ( line.Length == 0 ) continue ;

    ..... // code here
}

Re: Can someone tell me how to solve this problem?

Silvyster13-Apr-08 13:10

Silvyster

13-Apr-08 13:10

Thank you this time it worked... I wonder why that first guy who replied keeps on asking why I do this and do that, why does he care?, it's MY PROGRAM.. and I WANT IT THIISS WAYYY... nobody can stop my creativity Mad | :mad:

Re: Can someone tell me how to solve this problem?

PIEBALDconsult13-Apr-08 14:18

PIEBALDconsult

13-Apr-08 14:18

Thanks.

Silvyster wrote:
keeps on asking why

Because you should be able to read the documentation to determine what the problem is.

Silvyster wrote:
it's MY PROGRAM.. and I WANT IT THIISS WAYYY

But your way didn't work very well, did it?

Re: Can someone tell me how to solve this problem?

Silvyster13-Apr-08 18:34

Silvyster

13-Apr-08 18:34

yeah the documentation is like a lot of pages and I believe this website makes things for programmers to learn easier and better. yeah my program didn't work but at least the way you modified it, makes sense. I mean THAT other guy is already giving me alternatives, BUT I dont want alternatives, I want SOLUTIONS

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.