C# Discussion Boards - CodeProject

Anonymous25-Aug-02 16:52

25-Aug-02 16:52

How does one add an MFC style HTMLView control to a C# form? It seems it would be one of the basic controls included in the toolbox... Thank you in advance...

Re: HTMLView in C#

James T. Johnson25-Aug-02 17:35

James T. Johnson

25-Aug-02 17:35

You would think that, but it isn't.

Using the Web Browser control in .NET should answer your questions.

James
"And we are all men; apart from the females." - Colin Davies

[HELLLP] DB2 ODBC Connection

Jassim Rahma25-Aug-02 10:29

Jassim Rahma

25-Aug-02 10:29

Guys,

I was trying to connect to DB2 using ODBC with no luck?

Can any one give me a working code to connect to AS400 DB2 using ODBC.

Example :
ODBC Name : AS400ODBC
Connect using : TCPIP
IP Address: 171.25.254.12
AS400 Library: DB2LIB
AS400 DB2 File: DB2OBJ
User ID: OPRUSER
Password: florida

Many Thanks,
Jassim Rahma

Jassim Rahma

Select Path

SHaroz25-Aug-02 8:23

SHaroz

25-Aug-02 8:23

I'm trying to make a custom installer. Is there some property of the OpenFileDialog that will let the user select a directory instead of a file? Or do I have to use a treeview to do this?

Any help would be greatly appreciated.

Re: Select Path

Michael Mac25-Aug-02 10:10

Michael Mac

25-Aug-02 10:10

You can use a window called BrowseForFolder.
A .Net wrapper is available at Folder Browser component for .NET

Cool | :cool:

43 68 65 65 72 73 2c
4d 69 63 68 61 65 6c

Hashtable question.

LukeyBoy25-Aug-02 5:28

LukeyBoy

25-Aug-02 5:28

Okay, I must be an idiot. Isn't the point of a hashtable fast retrieval of objects based on their key? Cause I can't find any Get method for the Hashtable object in the .NET framework. The only examples in MSDN and on the web show the developer iterating or enumerating through the table, which pretty much defeats the whole purpose of using a Hashtable. Can anyone point me in the right direction?

Re: Hashtable question.

James T. Johnson25-Aug-02 6:31

James T. Johnson

25-Aug-02 6:31

object myStoredObject = myHashTable[myKey];

James
"And we are all men; apart from the females." - Colin Davies

Re: Hashtable question.

LukeyBoy25-Aug-02 6:34

LukeyBoy

25-Aug-02 6:34

Sweet, thanks. I had no idea it was indexed like this.

Re: Hashtable question.

James T. Johnson25-Aug-02 6:35

James T. Johnson

25-Aug-02 6:35

No problem, its not obvious at first; basically if you see in the documentation that a collection has an Items property then you access it like an array in C#.

James
"And we are all men; apart from the females." - Colin Davies

Process related question?

imran_rafique25-Aug-02 1:52

imran_rafique

25-Aug-02 1:52

who to communicate with a process.lets say there are a number of components on its main window how to pass messages to them,who to passs data to their edit boxes and text areas.

who to get its mainwindow hawndle i tried to get its hwndle like that
Process tmpProcess;
..
tmpProcess.start();
tmpProcess.WaitForInputIdle();
IntPtr hWnd=tmpProcess.MainWindowHandle;
HWND t_hwnd=(HWND)hWnd.ToInt32();
but thats not its main window handle because when i get its rectangle its points are not correct.
what to do if i want to have processes mainwindow hwnd?

i also want to get process main window new handle when its window changes after some processing how to get it?

is there any other way to communicate with process ?
plz provide the helping metrial and related links for that?
i will be very thank full to u.

r00d0034@yahoo.com

Update database without SQL???

jstonge24-Aug-02 17:40

jstonge

24-Aug-02 17:40

First of all, I'm not an expert on data access. But in my trials and tribulations with ADO.Net and ADO I've yet to find a way to update a database without it using SQL to do its work. It seems to me that if I have a large recordset that I create which I want to add to a database, it should be doable without the overhead of converting to SQL and then having the DBMS unconvert it on its side. Is this possible with ADO.Net, and if so, how?

Let's say that I have a simple table in the database with 200 double-precision floating point fields. If at some point, I have 4,000 rows to add to the table (6,400,000 bytes of data) how can I add this data to the database as efficiently as possible? It seems to me that converting everything to a text command in SQL when I already have the data formatted as a 4000x200 table is inefficient.

Re: Update database without SQL???

Daniel Turini26-Aug-02 0:47

Daniel Turini

26-Aug-02 0:47

Convert everything to a text file and use the BCP (bulk copy) utility. This is the fastest way to upload to a SQL Server database (in reasonable servers, I got about 100,000 rows/second).

The second fastest way, much slower, but much more flexible is using DTS.

Concussus surgo.
When struck I rise.

File Structure

Jassim Rahma24-Aug-02 9:59

Jassim Rahma

24-Aug-02 9:59

I was just thinking : how I can get the file structure for any software? for example if I want to read Lotus Notes nsf files, Brio Explorer, etc. Is there a way to discover how the file structure was built?

Jassim Rahma

Re: File Structure

James T. Johnson24-Aug-02 10:54

James T. Johnson

24-Aug-02 10:54

Trial and error or http://www.wotsit.org/[^]

James
"And we are all men; apart from the females." - Colin Davies

Conversion from Bitmap to Icon in GDI+

Maciej Pirog24-Aug-02 4:15

Maciej Pirog

24-Aug-02 4:15

Hello everybody!

I would like to convert a Bitmap object (System.Drawing.Bitmap) to an Icon object (System.Drawing.Icon). I tried to use IconConverter class and ImageConverter class:

ImageConverter ic = new ImageConverter();
Icon i = (Icon)ic.ConvertTo(bitmap,Icon.GetType());

I got an exception:

An unhandled exception of type 'System.NotSupportedException' occurred in system.windows.forms.dll

Additional information: 'ImageConverter' is unable to convert 'System.Drawing.Bitmap' to 'System.Drawing.Icon'.

Help me, please!

Ñ There is only one MP Ð

Re: Conversion from Bitmap to Icon in GDI+

jparsons24-Aug-02 15:18

jparsons

24-Aug-02 15:18

I wrote a utility to do this one time. Check out the source for a quick solution on how to do this.

http://www.prism.gatech.edu/~gte477n/languages/csharp/converter.html[^]

Jared
jparsons@jparsons.org
www.prism.gatech.edu/~gte477n

Re: Conversion from Bitmap to Icon in GDI+

Maciej Pirog25-Aug-02 8:15

Maciej Pirog

25-Aug-02 8:15

Thanks!

Ñ There is only one MP Ð

Measure the width of a Character

Nnamdi Onyeyiri24-Aug-02 3:46

Nnamdi Onyeyiri

24-Aug-02 3:46

I need to measure the width of one character, but MeasureString is not working properly. any ideas?

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

Off topic

leppie24-Aug-02 4:56

leppie

24-Aug-02 4:56

http://www.gipsysoft.com/articles/winspector/[^]

Spy+++ Smile | :)

MYrc : A .NET IRC client with C# Plugin Capabilities. See
http://sourceforge.net/projects/myrc for more info. Big Grin | :-D

Re: Off topic

Nnamdi Onyeyiri24-Aug-02 9:38

Nnamdi Onyeyiri

24-Aug-02 9:38

yer ive seen this before, whats your point?

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

Re: Measure the width of a Character

Paul Ingles25-Aug-02 7:14

Paul Ingles

25-Aug-02 7:14

I couldn't get to sleep last night so I decided to pick up my copy of Petzold's Programming C# book, eventually (around 3) I did nod off, and I seem to remember it going on for a bit about sizes of characters etc. I'll try and find where I was.

What did you need to find the width of a character for? Do you need the size in pixels, points etc.? That should help me know whether what I was reading about is relevent.

--
Paul
"I need the secure packaging of Jockeys. My boys need a house!"
- Kramer, in "The Chinese Woman" episode of Seinfeld

MS Messenger: paul@oobaloo.co.uk
Sonork: 100.22446

Re: Measure the width of a Character

Nnamdi Onyeyiri25-Aug-02 7:16

Nnamdi Onyeyiri

25-Aug-02 7:16

ive found it in there, you have to use the StringFormat parameter of MeasureString, and set the flag StringFormatFlags.MeasureTrailingSpaces Smile | :)

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

Quick way to evaluate expression in .Net?

leppie24-Aug-02 3:13

leppie

24-Aug-02 3:13

Is there a quicker way to evaluate a string expression to a value than to compiled to code in an assembly first?

string exp = "(3 + 4) * 5 / 7";<br />
<br />
int result = IWantThisFunction(exp);

I looked at the article on the site, but that uses CodeDOM and compiles an assembly making it terribly slow ( say trying to call the function several 100000 times)

Thanx for helping Smile | :)

MYrc : A .NET IRC client with C# Plugin Capabilities. See
http://sourceforge.net/projects/myrc for more info. Big Grin | :-D

Re: Quick way to evaluate expression in .Net?

Domenic Denicola24-Aug-02 17:47

Domenic Denicola

24-Aug-02 17:47

Well... parsing is always a possibility, if it's just arithmetic. I would imagine somebody's already created a calculator with .NET, which would mean just taking their code and trimming out all GUI stuff.

-Domenic Denicola- [CPUA 0x1337]
MadHamster Creations

"I was born human. But this was an accident of fate - a condition merely of time and place. I believe it's something we have the power to change..."

Re: Quick way to evaluate expression in .Net?

James T. Johnson24-Aug-02 18:47

James T. Johnson

24-Aug-02 18:47

You mean something like this?

int i = (int) Evaluator.Evaluator.DoEval("1 + 3");<br />
<br />
MessageBox.Show(i.ToString());

Take this bit of code; and put it in a file called eval.js

package Evaluator
{
    public class Evaluator
    {
        static function DoEval(str : String) {
            return eval(str);
        }
    }
};

Now compile with this command line

jsc /target:library /out:eval.dll eval.js (you'll have to make sure the directory %windir%\microsoft.net\framework\%net_version%\ is in your path)

Now add a reference to eval.dll and to the Microsoft.JScript assemblies; execute the code above Wink | ;)

James
"And we are all men; apart from the females." - Colin Davies

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