Re: FileStream - C# Discussion Boards

Re: how to load Pdf file to file test to RichText Box

Simon P Stevens26-Sep-08 4:44

26-Sep-08 4:44

You need to use a PDF library.

There are several open source .net PDF libraries, although most only support writing, not reading PDF files. See here[^] (PDF clown looks like the only one that reads PDF files)

There are loads of commercial PDF libraries, just google.

If you don't want to use a library, you'll need to download and read the official Adobe PDF spec[^] before writing your own PDF reader.

Simon

Re: how to load Pdf file to file test to RichText Box

John Ad26-Sep-08 7:40

John Ad

26-Sep-08 7:40

Hi Wasim,

Refer to the below mentioned link:

Read from a PDF file using C# [^]

I hope this would be helpful.

John Adams
ComponentOne LLC.
www.componentone.com

textbox control managing behaviour of editing content

Witoldek26-Sep-08 0:59

Witoldek

26-Sep-08 0:59

Hello everyone,

Im wondering if its possible to make my control behave in the way described below:

during editing text when user types enter normally cursor moves to the next line creating new emtpy line and then user can keep on writing. I would like to make it possible to move to another line by typeing enter only when the current line contains 10 characters.
Hope taht my description of the problem is clear,

thanks for any hint,

Witek

Re: textbox control managing behaviour of editing content

Anthony Mushrow26-Sep-08 1:22

Anthony Mushrow

26-Sep-08 1:22

Use the KeyDown event, inside check if the Return key was pressed. If it was then you can check how many characters are in the current line. If there are not enough characters in the line then set e.Handled to true to ignore key.

My current favourite word is: Nipple!

-SK Genius

Game Programming articles start -here[^]-

C# reflection?

ppayal26-Sep-08 0:57

ppayal

26-Sep-08 0:57

Hi,

I have a class as under:

public class ExampleClass : BaseClass

{

        public int ExampleMethod(int _toValidate)  {

              ExampleValidator(_toValidate);

               return 1;

 }

}

The ExampleValidator method is contained in the BaseClass. It is used to validate the parameter _toValidate. The ExampleValidator check is very important and every method in the class ExampleClass should contain it. I want to create a unit test for this class ExampleClass, to test if every method does contain the ExampleValidator. How can I do that?

Can reflection help me?

Regards,
ap.

Re: C# reflection?

Simon P Stevens26-Sep-08 4:07

Simon P Stevens

26-Sep-08 4:07

I think you are missing the point of unit testing.

A unit test should run a piece of code and check that the output/result is as expected. A unit test does not examine code to check the semantics.

What you should do is write several unit tests that run the ExampleMethod with different parameters and checked the results were correct. You would also write several unit tests that run the ExampleMethod with invalid parameters and check that the method failed in the correct way.

What you are asking about doing is called "static analysis". MS have a tool called FxCop[^] which does static analysis. (Or if you have Vs2005/08 team versions, they have "code analysis" built in, which is basically the same as FxCop).

If you google there are several tutorials for writing your own custom rules for FxCop. (see here[^])

There are plenty of other static analysis tools[^] if you want to try a few out. There is also DevPartner[^] from Compuware, which I've used in the past and you can add custom rules to.

Simon

FileStream

kk.tvm25-Sep-08 22:24

kk.tvm

25-Sep-08 22:24

Hi friends

I have class name FileInfo, I am using FileStream fs class. I opened a file at constructure with using FileStream class and not closed, but i unable to use same variable in other methods.

public Class FileInfo
{
public FileStream fs;

public FileInfo()
{
 fs = new FileStream("c:\\abc.txt", FileMode.Create);
}

public Do()
{
BinaryWriter br = new BinaryReader(fs);
 br.Write(bytes);
}

}

Unable to write to file

please help me

thanks in advance

-kk.tvm-

Re: FileStream

Programm3r25-Sep-08 22:34

Programm3r

25-Sep-08 22:34

kk.tvm wrote:
BinaryWriter br = new BinaryReader(fs);

None of the BinaryWriter constructs support new BinaryReader
BinaryWriter Constructors

BinaryWriter()()() Initializes a new instance of the BinaryWriter class that writes to a stream.

BinaryWriter(Stream) Initializes a new instance of the BinaryWriter class based on the supplied stream and using UTF-8 as the encoding for strings.

BinaryWriter(Stream, Encoding) Initializes a new instance of the BinaryWriter class based on the supplied stream and a specific character encoding.

More like:

...
using(BinaryWriter binWriter =
    new BinaryWriter(File.Open(fileName, FileMode.Create)))
{
    binWriter.Write(aspectRatio);
    binWriter.Write(lookupDir);
    binWriter.Write(autoSaveTime);
    binWriter.Write(showStatusBar);
}
...

The only programmers that are better that C programmers are those who code in 1's and 0's Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: FileStream

kk.tvm26-Sep-08 0:21

kk.tvm

26-Sep-08 0:21

Hi Programm3r

Your solution is helpful for me.

I mistakely write as
BinaryWriter br = new BinaryReader(fs);

anyway

thanks

-kk.tvm-

get current instance of visual studio IDE

Vinod C S25-Sep-08 22:22

Vinod C S

25-Sep-08 22:22

Hi,
I want to get current instance of the visual studio IDE when multiple instances of the
studio is running. I wanrt to reteive the current active document in the currently active instance. The code in msdn gives only this much...

<br />
                EnvDTE80.DTE2 dte2;<br />
                dte2 = (EnvDTE80.DTE2)System.Runtime.InteropServices.Marshal.<br />
                GetActiveObject("VisualStudio.DTE.9.0");<br />

but this doen't help me out, when multiple instances of studio are opened.
msdn says something about moniker objects to get it? but I am unable to find out... pls help.

thanks in advance,
vinod

Change registry key in Vista

sarabjs25-Sep-08 22:06

sarabjs

25-Sep-08 22:06

Hi,

We have a number of computers (>300), for which we need to change a particular registry setting. So I wrote a C# program that uses this code to do that:

RegistryKey regkey = Registry.LocalMachine.OpenSubKey(KeyName, true);
regkey.SetValue(KeyValue, 2);

When I distribute the executable, it works perfectly for all XP machines. But the Vista machines (even while in user accounts with Admin access) throw an error:

System.Security.SecurityException: Requested registry access is not allowed

I've tried looking for solutions online but couldn't follow any. Anyone who can help me change a registry key value in Vista through C# code?

Thanks,

Sarab

Re: Change registry key in Vista

Guffa25-Sep-08 22:15

Guffa

25-Sep-08 22:15

To run it on Vista, right click on the application and select "Run as administrator".

Despite everything, the person most likely to be fooling you next is yourself.

modified on Friday, September 26, 2008 9:51 AM

Re: Change registry key in Vista

DaveyM6926-Sep-08 0:41

DaveyM69

26-Sep-08 0:41

In addition to what Guffa said, these may help.
Look at the System.Security.Permissions.RegistryPermission class
and/or
Add an app.manifest file and alter the requestedExecutionLevel - this will invoke UAC.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Help Pls, How to get text from textbox or label on forms with winapi

TALHAKOSEN25-Sep-08 22:04

TALHAKOSEN

25-Sep-08 22:04

Hi all,

Could somebody help me pls ? i want to retrieve text from label or textbox on a windows form which i want. Then i type the text to textbox with winApis automatically. For example you think that a keygen it generates a serial i wanna get this then i want to send it to programs activation window.

Thanks,

Sampiyon FENERBAHCE

modified on Friday, September 26, 2008 4:20 AM

Re: Help Pls, How to get text from textbox or label on forms with winapi

Alan Balkany26-Sep-08 3:05

Alan Balkany

26-Sep-08 3:05

Use the "Text" member for your control, e.g. myTextBox.Text. This is a string that gets/sets the text for the control.

Re: Help Pls, How to get text from textbox or label on forms with winapi

TALHAKOSEN26-Sep-08 3:08

TALHAKOSEN

26-Sep-08 3:08

i need to do this with apis ? but i dont know how

Sampiyon FENERBAHCE

How to turn off UAC using c#?

lovnin25-Sep-08 22:03

lovnin

25-Sep-08 22:03

I want to turn off vista UAC(User Account Control) using c#.
How can i do that?
Thanks a lot.

Re: How to turn off UAC using c#?

c242326-Sep-08 0:10

c2423

26-Sep-08 0:10

Not that I can say for sure, but I would imagine that its close to impossible - the point of UAC is to stop programs doing things they shouldn't. If C# could turn it off easily I'd be very worried about UACs value as a security measure...

Chris

Re: How to turn off UAC using c#?

DaveyM6926-Sep-08 0:44

DaveyM69

26-Sep-08 0:44

You probably shouldn't, but, all the UAC stuff is saved in the registry. You can alter those keys (you'll need to invoke UAC via app.mainifest first to be able to access them) from C#. Google for Registry UAC Vista and you should be able to find out which keys they are.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Re: How to turn off UAC using c#?

Paul Conrad26-Sep-08 5:58

Paul Conrad

26-Sep-08 5:58

Not sure if from a security standpoint that this is a good idea. Any reason why you must do this?

"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

"Not only do you continue to babble nonsense, you can't even correctly remember the nonsense you babbled just minutes ago." - Rob Graham

Online Media Player

manishgkumar25-Sep-08 22:02

manishgkumar

25-Sep-08 22:02

Dear Sir,

Will u pls give me a suggestion to create online media player in asp.net2.0 with c#

Manish

Re: Online Media Player

Ashfield26-Sep-08 1:22

Ashfield

26-Sep-08 1:22

Ok, here's a suggestion. Why don't you create an online media player in asp.net 2.0, using c#.

Was there anything else? Smile | :)

Bob
Ashfield Consultants Ltd

DragDrop Multiple Items of the ListView

Programm3r25-Sep-08 21:46

Programm3r

25-Sep-08 21:46

Hi all,

Does anyone perhaps have some example code of how to Drag and Drop multiple items from one ListView to another ListView ?

Many thanks in advance
Regards,

The only programmers that are better that C programmers are those who code in 1's and 0's Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: DragDrop Multiple Items of the ListView

Blue_Boy25-Sep-08 22:19

Blue_Boy

25-Sep-08 22:19

Check this.[^]

I Love T-SQL
"Don't torture yourself,let the life to do it for you."
If my post helps you kindly save my time by voting my post.

Re: DragDrop Multiple Items of the ListView

Programm3r25-Sep-08 22:36

Programm3r

25-Sep-08 22:36

Thanks

The only programmers that are better that C programmers are those who code in 1's and 0's Green Alien | [Alien]

Programm3r
My Blog: ^_^

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