Re: is it possible to dynamically name a variable? - C# Discussion Boards

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Re: copy a file to a folder

Abhinav S23-Jan-10 21:22

Abhinav S

23-Jan-10 21:22

tanweer akhtar wrote:
i m try to save a file but it does not work

Are you getting an error?
If yes, post the error here and someone might be able to help you.

using \ in c#

tanweer23-Jan-10 15:43

tanweer

23-Jan-10 15:43

hello to all
i m a student
i m interested in C#
i have a problem now
i m aunable to use the '\' or "\" in my program how i can use it in C#
can any body help me

thank lords!!!!!!!!!
best reguards >>>>>>

Re: using \ in c#

Dan Mos23-Jan-10 16:21

Dan Mos

23-Jan-10 16:21

use @"\" or "\\"

Re: using \ in c#

April Fans24-Jan-10 19:43

April Fans

24-Jan-10 19:43

I think the type of '\' is character,the type of "\" is string

April

Comm100 - Leading Live Chat Software Provider

modified 27-May-14 8:51am.

is it possible to dynamically name a variable?

tonyonlinux23-Jan-10 12:30

tonyonlinux

23-Jan-10 12:30

Basically lets say you have 3 items in an array[]
is there a way to do something like this

for (int i=0; i< array[].length; i++)
{
  string Name + i = blahblah.tostring();

basically so I would have 3 strings
Name1
Name2
and Name3

Re: is it possible to dynamically name a variable?

Dan Mos23-Jan-10 12:59

Dan Mos

23-Jan-10 12:59

Not that I konw of.

You could use a dictionary<string, string> where the key is the "name
of the variable".

something like:

Dictionary<string, string> blah = new Dictionary<string, string>();
for (int i = 0; i < array[].length; i++)
{
    blah.Add("Name" + i.ToString(), "blablablah");
}

Re: is it possible to dynamically name a variable?

harold aptroot23-Jan-10 13:22

harold aptroot

23-Jan-10 13:22

If they are fields/properties instead of local variables you could do something like that with reflection, but you really shouldn't.

Re: is it possible to dynamically name a variable?

tonyonlinux23-Jan-10 13:53

tonyonlinux

23-Jan-10 13:53

Well what I was thinking is since my current code is giving me an issue with resetting the dataset inside a foreach loop I was gonna do the following to populate a tree view.

string[] AuthorNames = new string[bookdbDataSet.Tables[0].Rows.Count];
            int row=0;
            foreach (DataRow Row in bookdbDataSet.Tables[0].Rows)
            {
                AuthorNames[row] = Row["AuthorFirst"].ToString() + " " + Row["AuthorLast"].ToString();
                TreeNode [DYNAMIC NAME HERE] = new TreeNode(Row["AuthorLast"].ToString() + ',' + Row["AuthorFirst"].ToString());
                rootNode.Nodes.Add(tn);
                row++;
            }
            for (int counter = 0; counter < AuthorNames.Length; counter++)
            {
                string[] splitarray = null;
                string Aname = AuthorName[i].tostring();
                splitarray = Aname.split(" ");

              bookListTableAdapter.FillByFirstandLast(bookdbDataSet.BookList, SplitArray[1].ToString(), SplitArray[0].ToString());
                foreach (DataRow ChildRow in bookdbDataSet.Tables[0].Rows)
                  {
                TreeNode child = [DYNAMIC NAME HERE].Nodes.Add(ChildRow["Title"].tostring());
                     
                    }
                    [DYNAMIC NAME HERE].nodes.add(child);
                
                
            

        }

So basically I get all the unique author names first and put them in an array
Then I fill the dataset one at a time for each author and then run a foreach to get the titles and then I assign them to the node of the Rootnode's dynamic name

Re: is it possible to dynamically name a variable?

harold aptroot23-Jan-10 13:59

harold aptroot

23-Jan-10 13:59

Well clearly you can't do that, even if "dynamic names" were possible they would go out of scope..
Idea 0: Why don't you just fill and array with them?
Idea 1: Couldn't you nest the loops? Then you would only need 1 temporary variable to hold the current TreeNode.

Re: is it possible to dynamically name a variable?

tonyonlinux23-Jan-10 14:09

tonyonlinux

23-Jan-10 14:09

well, here is what i was originally thinking but of course I can't do the second fill with the foreach. Thats why I went a different route. I'm sure I'm doing this all wrong but hey I'm learning so what the heck...

http://csharp.pastebin.com/m58597462[^]

Re: is it possible to dynamically name a variable?

harold aptroot24-Jan-10 1:16

harold aptroot

24-Jan-10 1:16

Why can't you do that? As far as I can see you're not changing the collection that the foreach loops over

Socket listening

3bood.ghzawi23-Jan-10 9:32

3bood.ghzawi

23-Jan-10 9:32

Hi all, i'm asking how to use a socket class to listening to all ports and reciving all packets...

Regards

Re: Socket listening

sanforjackass23-Jan-10 11:52

sanforjackass

23-Jan-10 11:52

i think if you make (for) loop to make threads of all ports

i want to take a snapshot image from a video file. then tell me how can i get a snapshot image from a video file programatically?

rabia javeed23-Jan-10 7:07

rabia javeed

23-Jan-10 7:07

If any one know then guide me.

Re: i want to take a snapshot image from a video file. then tell me how can i get a snapshot image from a video file programatically? [modified]

sanforjackass23-Jan-10 12:05

sanforjackass

23-Jan-10 12:05

try this
http://www.codeproject.com/KB/cs/WebCamService.aspx []^

Search

modified on Saturday, January 23, 2010 6:15 PM

Re: i want to take a snapshot image from a video file. then tell me how can i get a snapshot image from a video file programatically?

rabia javeed23-Jan-10 21:43

rabia javeed

23-Jan-10 21:43

Actually i made a window application , in which play a video file using window media player. now i want to take a snapshot image. the link you tell me its all about Webcam Service.aspx. i am not working in aspx. so do you have any idea how can i take snapshot using window media player api.

Re: i want to take a snapshot image from a video file. then tell me how can i get a snapshot image from a video file programatically?

Super Lloyd23-Jan-10 12:16

Super Lloyd

23-Jan-10 12:16

I don't kownw!

But by using either of WPFMediaKit[^] or Slimdx[^] you should be able to gather more information...
Who knows they might even have a sample.. or they might know if you ask on their discussion list?!

A train station is where the train stops. A bus station is where the bus stops. On my desk, I have a work station....
_________________________________________________________
My programs never have bugs, they just develop random features.

C-interface from C#

Niklas L23-Jan-10 6:11

Niklas L

23-Jan-10 6:11

Hi all

I have a C header file which describes a plug-in interface. Now, I'd like to implement plug-ins in C#. How would I go about doing that?

The interface uses C native types including callback functions.

Any tips or pointers?

Thanks in advance
Niklas

home

Re: C-interface from C#

#realJSOP23-Jan-10 6:44

#realJSOP

23-Jan-10 6:44

I think this might get you started:

Microsoft Add-in Framework[^]

.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001

Re: C-interface from C#

harold aptroot23-Jan-10 7:07

harold aptroot

23-Jan-10 7:07

Are you trying to implement a plug-in in C# for a program that expects native plug-ins?

Re: C-interface from C# [modified]

Niklas L23-Jan-10 21:15

Niklas L

23-Jan-10 21:15

Yes, that's what I'm trying to do. I want to do that to be able to create some wizards for visual studio, so that others can create plug-ins easily. Today I have wizards for C++, but I think I'm missing a lot of developers that way.

Edit: The plug-in is just a DLL.

home

modified on Sunday, January 24, 2010 3:31 AM

Install Shiled

Said Ali Jalali23-Jan-10 5:08

Said Ali Jalali

23-Jan-10 5:08

Hi.
I have an (.EXE) file(CrystallReport2005.exe)or anything else.
Can you tell me how can i add this file to my install Shield project to run and install it.
Thank you.
Rose | [Rose]

CanI

Re: Install Shiled

sanforjackass23-Jan-10 5:30

sanforjackass

23-Jan-10 5:30

create a setup project
then from application folder right click--->Add
then select your files you want to add them in your (exe) file
after that build or press Ctrl+Shift+B
go where the project you created and look in the bin file

Re: Install Shiled

Muammar©

23-Jan-10 5:38

You can use the vs tool:

File > New > Other project types > Setup and deployment

One more thing..

Rose | [Rose]

This's not the right place for such question Rose | [Rose]

We will either find a way, or make one!
(\ /)
(- .-)
C(''')(''')

Re: Install Shiled

Md. Marufuzzaman23-Jan-10 5:40

Md. Marufuzzaman

23-Jan-10 5:40

Hi Roya Rayane:
When you add all the project output file into your InstallShiled setup & deployment project… There was an option where you can confirm the existing dependencies … InstallShiled has a features to add your desire object from a list of object…For example you build a .Net app setup in that case you can add the .Net framework into your setup & deployment project so when you install your app the .Net framework will install silently if .Net framework is not available in the target machine …

Thanks
Md. Marufuzzaman

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