Re: Finding Text in a RichTextBox - C# Discussion Boards

Dave Kreskowiak10-Jan-06 5:27

10-Jan-06 5:27

If the file is locked by the other application, or opened with DenyShare, there's no way you can open the file until the other application closes it and releases it's locks.

The only way to check to see if the file is accessible is to try and open it. Catch an Exceptions thrown in a Try/Catch block. If the open fails, wait a bit, then try again. Eventually, the other app should close the file and you'll be able to open it.

You could also try to only open the file for SharedRead, meaning you're application will not write to the file but will allow other processes to share access to the file. If your other application is denying Shared Read, you're out of luck.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Generating program from the another program

tadung9-Jan-06 22:54

tadung

9-Jan-06 22:54

I have some problem when I code a program for generating another program by C#. I want to code a program after it is run then it generate another program.

Ex: Write the A program iuput the string and generate B program. Then this B.exe is run, it output the string that inputed in the A program.

I am looking forward to your response soon.
Thank you very much.
Dung

Tran Dung

Re: Generating program from the another program

Colin Angus Mackay9-Jan-06 23:45

Colin Angus Mackay

9-Jan-06 23:45

You didn't ask a question. What is it that you want to know?

ColinMackay.net
"Man who stand on hill with mouth open will wait long time for roast duck to drop in." -- Confucius
"If a man empties his purse into his head, no man can take it away from him, for an investment in knowledge pays the best interest." -- Joseph E. O'Donnell

Re: Generating program from the another program

Sebastian Schneider10-Jan-06 1:48

Sebastian Schneider

10-Jan-06 1:48

Fire up MSDN, filter for .NET, search for compiler.

Cheers,
Sebastian

--
Contra vim mortem non est medicamen in hortem.

print preview for xps document

Shiva Prasad9-Jan-06 22:51

Shiva Prasad

9-Jan-06 22:51

hi all,

I am using DocumentViewer Class which exports

print method only..I need to have a print preview option too in the winfx application.

What's the right way to do this ? I am using vc# 2005

I also need suggestion for the following method

In the Handler for print preview menu, I have a

private void OnPrintPreview( )

{

System.Windows.Forms.PrintPreviewDialog prev = new System.Windows.Forms.PrintPreviewDialog();

prev.document = //Here, How can I get the PrintDocument from DocumentViewer

prev.ShowDialog()

}

DocumentViewer's document member variable is of type

IDocumentPaginitorSource. Pls let me know how to get

System.Drawing.Printing.PrintDocument type from IDocumentpaginitor.

Thanks,

Finding Text in a RichTextBox

alvinjv9-Jan-06 22:48

alvinjv

9-Jan-06 22:48

I am a novice at C# and was wondering if there is a way to implement a find function in a RichTextBox. I have been thus far able to find the text and even change the color of the text when found. However I was wondering if it is possible to move the window focus to where the text was found, much like in a word processor.

Re: Finding Text in a RichTextBox

Curtis Schlak.10-Jan-06 3:34

Curtis Schlak.

10-Jan-06 3:34

If you know what you want to select, say characters 42 through 51, then you can do the following in your search method.

// Lots of neat stuff
myRichTextBox.Focus();
myRichTextBox.Select( start, length ); // start = 42, length = 9 for this example
// Lots more neat stuff

I hope that helps.

"we must lose precision to make significant statements about complex systems."
-deKorvin on uncertainty

Re: Finding Text in a RichTextBox

Dave Kreskowiak10-Jan-06 5:23

Dave Kreskowiak

10-Jan-06 5:23

You're looking for the RTB's ScrollToCaret[^] method. So long at the RTB's SelectionStart property it set to where you want to scroll and the RTB has the Focus, this method will work.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Printing

Dylan van Heerden9-Jan-06 20:10

Dylan van Heerden

9-Jan-06 20:10

Hi
Does anyone have an example to print a statement?

Thank you,
D

Re: Printing

PrakashBhaskar9-Jan-06 20:26

PrakashBhaskar

9-Jan-06 20:26

Hi,
where did you have your statement if it is in aspx page write the following code on body onload event, it will automatically print this page.

Thanks
Warm Regards
Prakash-B

[Message Deleted]

Anup20069-Jan-06 18:21

Anup2006

9-Jan-06 18:21

[Message Deleted]

Re: How To Get The Row Count Of Datagrid Including Automatically Generated Row

Maqsood Ahmed9-Jan-06 18:49

Maqsood Ahmed

9-Jan-06 18:49

Hello,
You can get the CurrencyManager and access its Count property.

CurrencyManager cm = dataGrid.BindingContext[dataGrid.DataSource] as CurrencyManager;<br />
if(cm != null)<br />
  int count = cm.List.Count; //Total rows in the grid.

HTH. Cheers Smile | :)

Maqsood Ahmed - MCAD.net
Kolachi Advanced Technologies
http://www.kolachi.net

Re: How To Get The Row Count Of Datagrid Including Automatically Generated Row

Anup20069-Jan-06 22:50

Anup2006

9-Jan-06 22:50

:(It is not working for me.If i'm having 2 rows the count is showing as 1 ???

Anup

Hex question

Tom Wright9-Jan-06 11:23

Tom Wright

9-Jan-06 11:23

in MFC if I wanted a hex value in a string I could put in \x04. How do I add hex to a string in C#. Do I do it the same?

Thanks

Tom Wright
tawright915@yahoo.com

Re: Hex question

Curtis Schlak.9-Jan-06 11:46

Curtis Schlak.

9-Jan-06 11:46

Yes.

You can also use Unicode. "\u0082" == "\x82".

"we must lose precision to make significant statements about complex systems."
-deKorvin on uncertainty

Bar Code Reading

thepolishguy9-Jan-06 9:57

thepolishguy

9-Jan-06 9:57

I need to create a program that reads in bar codes. Would you be able to suggest how I might go about that task? Thanks

Re: Bar Code Reading

Tom Wright9-Jan-06 10:37

Tom Wright

9-Jan-06 10:37

Most bar code readers stand in between the end-user and the keyboard. So that when you scan a barcode it's as if they typed in the numbers on a keyboard. So just place your cursor where it needs to go and scan a bar code. It should fill. I've tried this with the USB as well as the PS2 barcode readers. The PS2 connects to the keyboard PS2 port on the PC and then with a "Y" cable that the keyboard plugs into.

Good luck

Tom Wright
tawright915@yahoo.com

Re: Bar Code Reading

thepolishguy9-Jan-06 11:07

thepolishguy

9-Jan-06 11:07

Thank you. That will make life relatively easy for me.

Parsing a string

Tom Wright9-Jan-06 9:55

Tom Wright

9-Jan-06 9:55

I've writtne a program that receives a string via TCP/IP. This string is made up of different data fixed fields. Sort of like thisissomedatablahblahblah. So if I know the field lenghts is there a way to copy data starting at a particular spot and reading for a particular length and returning that data?

Something like ReadTo(6, 4) which would return the word "some".

Thanks

Tom Wright
tawright915@yahoo.com

Re: Parsing a string

Guffa9-Jan-06 9:59

Guffa

9-Jan-06 9:59

Look at the Substring method of the string class.

---
b { font-weight: normal; }

Re: Parsing a string

galinace9-Jan-06 10:01

galinace

9-Jan-06 10:01

Hi,

There is a methode you can use for that.
Here is an example from the one you wrotte :

int startIndex = 6;
int Length = 4;
string MyString = "thisissomedatablahblahblah";
string SubString = MyString.Substring(startIndex, Length);

Hop that can help

string.Compare using wildcards

melanieab9-Jan-06 9:40

melanieab

9-Jan-06 9:40

Hi,
I'm trying to search a datagrid/datatable using string.Compare, and doing something wrong when trying to use wildcards. I have searchThis as the string to search for, which works fine with string.Compare(search, searchThis);. But when I try to make searchThis = "*" + searchThis + "*"; it doesn't work. I'm sure it's pretty simple, but haven't been able to find the answer yet.
Thanks for any help!
Mel

Re: string.Compare using wildcards

Dave Kreskowiak9-Jan-06 10:09

Dave Kreskowiak

9-Jan-06 10:09

The Compare method doesn't support wildcards.

If you want to search entire strings with wildcard support, you'll have to use Regular Expressions[^].

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Re: string.Compare using wildcards

melanieab9-Jan-06 10:21

melanieab

9-Jan-06 10:21

Thanks!
Mel

Number Format

mtone9-Jan-06 9:29

mtone

9-Jan-06 9:29

I am trying to display a number with two places to right of decimal. When the number diplays it truncates the trailling zero. I want to see .50 but I see .5

after I changed my datatype in the database to decimal from float. the number shows up like 2.25000009944

can someone tell me how do I display 1.50 with the zero in the database and the UI (web form). I tried looking for formatting in help but i can seem to get it right.

Thanks

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