C# Discussion Boards - CodeProject

Re: Array conversions

Nick Parker4-Jun-02 9:44

Nick Parker

4-Jun-02 9:44

Have you tried this:

System.Array myValues = (System.Array)range.Cells.Value;
myValues = (string [])myValues;

Nick Parker

Re: Array conversions

Fayez Al-Naddaf4-Jun-02 9:56

Fayez Al-Naddaf

4-Jun-02 9:56

yes Idid but it didn't work
What I did is I wrote a function that takes a System.Array variable as a parameter and returns a String[] array by converting the elements one by one.
it works but I would like to if there is a function to do that in one line of code.

Re: Array conversions

Nick Parker4-Jun-02 9:57

Nick Parker

4-Jun-02 9:57

JTJ should be lurking about, I'm sure he will have the answer. Good luck. Smile | :)

Nick Parker

Re: Array conversions

James T. Johnson4-Jun-02 15:36

James T. Johnson

4-Jun-02 15:36

string [] stringValues;
System.Array myValues = (System.Array)range.Cells.Value;
 
stringValues = new string[myValues.Length];
 
Array.Copy(myValues, stringValues, myValues.Length);

That should work, let me know if it doesn't.

James

Re: Array conversions

Fayez Al-Naddaf6-Jun-02 9:50

Fayez Al-Naddaf

6-Jun-02 9:50

I didn't work. I got the following message
"The specified arrays must have the same number of dimensions."
cause the myValues is a 2 dimensional array.
when I replcaed the StringValues with 2 dimensional array
I got the following:
" At least one element in the source array could not be cast down to the destination array type."
this type is double data type.
I am still in this problem !!!!!!!!!!!!!!! Mad | :mad:

choose directory dialog

ygxdha4-Jun-02 6:43

ygxdha

4-Jun-02 6:43

i want to have a dialog to get the directoryname that i choose.
i have already make one use DriveListBox, DirListBox and FileListBox.
code:

using Microsoft.VisualBasic.Compatibility.VB6;
using .........
namespace CustomerFolderDialog
{

public class FolderDialog : System.Windows.Forms.Form
{
....................
public string Path
{
get { return dirListBox1.Path; }
}
private string tempDrive;
……
public FolderDialog()
{
InitializeComponent();
tempDrive = this.driveListBox1.Drive;
}
……
private void driveListBox1_SelectedIndexChanged(object sender, System.EventArgs e)
{
try
{
this.dirListBox1.Path = this.driveListBox1.Drive;
tempDrive = this.driveListBox1.Drive;
}
catch(Exception ex)
{
MessageBox.Show(ex.Message,"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
driveListBox1.Drive = tempDrive;
}
}

private void Form1_Load(object sender, System.EventArgs e)
{
this.label1.Text = dirListBox1.Path;
}

private void dirListBox1_Change(object sender, System.EventArgs e)
{
try
{
this.fileListBox1.Path = this.dirListBox1.Path;
this.label1.Text = dirListBox1.Path;
}
catch(Exception ex)
{
MessageBox.Show (ex.Message,"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
}
}
}
}

but i don't like this.
i want its face like the "OpenFileDialog"
who can tell me how to it?

Directory List Box

4-Jun-02 3:42

Hello everyone !!!
In so many applications, I have seen a button "Browse", which fires up a simple tree-based directory picker, a small pop-up window that allows a user to pick a directory and click either "OK" or "Cancel" buttons. There is a similar control in VB 6.0 called DirListBox.
However, I have not found anything like that in C# - and I thought that C# is great GUI language for Visual C++/MFC developers Frown | :(

Does anyone know ???

Thanks a lot in advance.

Kirill

Re: Directory List Box

ygxdha4-Jun-02 6:40

ygxdha

4-Jun-02 6:40

you can use this control in c# after you install vb#.

you can see my code upstair.

Directory List Box

SuperGeek4-Jun-02 3:41

SuperGeek

4-Jun-02 3:41

Does anyone know ???

Thanks a lot in advance.

Kirill

Re: Directory List Box

Mazdak4-Jun-02 3:59

Mazdak

4-Jun-02 3:59

In visual C++,we use shell programming.

SHBrowseForFolder

Mazy

"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica

Dial up

Mazdak4-Jun-02 2:27

Mazdak

4-Jun-02 2:27

How can I dial up and connect to internet with modem in my C# program?

Mazy

"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica

Re: Dial up

Rama Krishna Vavilala4-Jun-02 14:26

Rama Krishna Vavilala

4-Jun-02 14:26

You need to PInvoke InternetDial function.

Re: Dial up

Mazdak4-Jun-02 19:53

Mazdak

4-Jun-02 19:53

Rama Krishna wrote:
You need to PInvoke InternetDial function.

Thank you for reply,but I can't find that function in MSDN.Could you please clarify it more. Smile | :)

Mazy

"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica

Re: Dial up

James T. Johnson4-Jun-02 20:33

James T. Johnson

4-Jun-02 20:33

I see it in my local MSDN; make sure you don't have it filtered to show only .NET related items.

MSDN Website entry.

James

Re: Dial up

Mazdak4-Jun-02 21:26

Mazdak

4-Jun-02 21:26

oh,yes.So agaian I have to use win32. Frown | :(

Mazy

"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica

Accessing methods/properties in the initial form...

Andrew Connell4-Jun-02 2:16

Andrew Connell

4-Jun-02 2:16

I'll start with saying that it's somewhat difficult explaining exactly what
I am having trouble with, so bear with me..

My application loads an initial form (MainContainer). This form, uses
another class file (PAMenu) within the project to build & return an object
containing a control menu. The PAMenu contains all of the menu
construction, changes, and event handlers. It uses a 3rd party control
(MagicLibrary) to build the menu (giving it the OfficeXP/VS.NET menu
appearance). My problem is that I am having trouble accessing methods &
properties in the MainContainer form from the event handlers. Here's a bit
of code:

[MainContainer]
private PAMenu thePAMenu = new PAMenu();
appMenu = thePAMenu.Menu(); // builds the menu with default settings & display settings
Controls.Add(appMenu);

[PAMenu]
//this simply builds the menu and contains event handlers
//the internal menu object is called 'theTopMenu'

[MagicLibrary]
//this control overloads the MenuControl and MenuCommand objects

I have no problem handling events if they don't interact with the
MainContainer or it's child forms (such as the Exit handler running
Application.Exit()), but calling a public method within MainContainer just
isn't working. I've tried the following from within an event handler in
PAMenu:
this.theTopMenu.ParentForm
which gave me access to the default properties of the MainContainer form (I
was able to change the text in the titlebar), but I can't see my exposed
methods. The odd thing is that I can see some of the private properties
when stepping through intellisense.

Any ideas?

Andrew Connell
IM on MSN
andrew@aconnell.com

Re: Accessing methods/properties in the initial form...

JerzyPeter4-Jun-02 3:06

JerzyPeter

4-Jun-02 3:06

Just cast to you class:

(MainContainer )(this.theTopMenu.ParentForm).SomeMethod()

Jerzy

Re: Accessing methods/properties in the initial form...

JerzyPeter4-Jun-02 3:21

JerzyPeter

4-Jun-02 3:21

Or do this:

MainContainer mc=(MainContainer)(this.theTopMenu.ParentForm)

Then:

mc.SomeMethod()
mc.AnotherMethod()

Jerzy

Emergency!! Can I use SDK in win32 project ?

Tida3-Jun-02 11:26

Tida

3-Jun-02 11:26

I create a project it only a win32 empty project and add my class and main() function.
I used functions in SDK:
CreateThread();
FindFirstFile().....
When I compile and build the project. It always has linkerror:nafxcwd.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __endthreadex
nafxcwd.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __beginthreadex

How to solve this problem??
Thanks for any suggestion.

Re: Emergency!! Can I use SDK in win32 project ?

Paul M Watt3-Jun-02 11:54

Paul M Watt

3-Jun-02 11:54

you need to make sure that your project is linking with this library, LIBCMT.LIB.

Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!

How to make a hyperlink column in datagrid in Winforms?

3-Jun-02 9:19

Anyone knows how to show a column in a bound datagrid as a linkLabel(hyperlink feature), when click it, can nevigate to somewhere?
Thanks a lot.

Reading/Writing to *.INI files

tigre2153-Jun-02 8:23

tigre215

3-Jun-02 8:23

I'm creating an appliation that reads/writes from/to files that have the same structure as an INI file. Win32 includes a few methods to read/write keys, section, etc. I've tried to do this using C# but it could not compile. It inidcated that the methods I was using (e.g. GetPrivateProfileInt...)were not recognized or not included in any of the namespaces.

Does C# support the use of these functions? If so, under what namespace?

Confused | :confused:

Re: Reading/Writing to *.INI files

Rickard Andersson²⁰3-Jun-02 9:26

Rickard Andersson²⁰

3-Jun-02 9:26

http://www.codeproject.com/csharp/ini.asp

Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C# and C++!

DataGrid problem

Alexandru Savescu3-Jun-02 6:25

Alexandru Savescu

3-Jun-02 6:25

Hello,

This is my first C# project so you might find this question stupid Poke tongue | ;-P

I have created a windows application and dropped on the form a sqlConnection and a sqlDataAdapter that uses the sqlConnection to connect to the database.

From the sqlDataAdapter (that maps to a specific table) I have created a DataSet via the wizard. Now I dropped a DataGrid on the form and set its DataSource and DataTable memebers correctly (I think at least, because I can see the column headers created from the dataset, and from the SQLDataAdapter I can preview my data correctly). Then in the constructor of my form I did

sqlDataAdapter1.Fill (dataSet11);

When I compile and run the app the datagid shows nothing but one single row and in the cells it says "(null)".
What do I do?

Best regards,
Alexandru Savescu

Re: DataGrid problem

Mazdak3-Jun-02 6:36

Mazdak

3-Jun-02 6:36

I'm not sure,but have you try other versions of Fill(),add the the name of table you want with start row and end row,also are you sure that your table is not null?

Mazy

"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica

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