Re: how to declare 2 dimensional arraylists in C# - C# Discussion Boards

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Re: Changing the default WindowClassName of a .NET Form?

Yuval Naveh10-Oct-06 23:32

Yuval Naveh

10-Oct-06 23:32

Hi Chris,

I am asking to change the Window Class name.
Your solution find open forms inside a .NET process.
I am trying to find a window from another process. So there is no access to Application.OpenForms.
The API to do this is called FindWindow, it is a Win32 API.

In Win32 each window has a ClassName which is a classifier and nothing to do with C++/C# classes.
Use the Spy++ with .NET windows (forms) and you will see that the Window ClassName is not unique (all .NET forms have the same ClassName).
I simply want to customize this ClassName for my forms.

Thanks anyway.

Yuval

"The true sign of intelligence is not knowledge but imagination." - Albert Einstein

Remoting and dynamic port allocation

SkyTom10-Oct-06 22:04

SkyTom

10-Oct-06 22:04

Hi,

I'm looking for a way to specify the port numbers of a TCP connection via a TCPChannel object. I use the TCPChannel because
I need to receive callbacks in my client application:

<channel ref="tcp" port="8085" rejectRemoteRequests="false" exclusiveAddressUse="true" useIpAddress="false">
<serverProviders>
<formatter ref="binary" typeFilterLevel="Full"/>
<provider ref="secureHandshake" />
</serverProviders>
</channel>

The client instantiates the remote object in a common manner:

(ILogin) Activator.GetObject(typeof(LoginProvider), serverPath) // serverPath="....:7912"

Sysinternal TCPViewer tells me about the following established remoting endpoints:

Process Local Remote
Client.exe nb2h130c:8085 nbgh62091033:2147 // Connection#1 used for Callbacks
Client.exe nb2h130c:2176 nbgh62091033:7912 // Connection#2

Question:

Is there a way to specify the client port number (2176) of connection#2 and the number of the server port (2147)

Another strange behavior is, that these both connections will be periodically removed and new established with other port numbers, while client and server are still working without any problem.

In the internet, I only came across the information to set a fixed endpoint for COM+ applications.

Thanks for every reply

Thomas

Deployment Question

wasife10-Oct-06 21:34

wasife

10-Oct-06 21:34

I have made a deployment Setup Project in VS2005. I have two question reagrding it.

1. How can I check before the installation starts whether service pack is installed on the machine or not?
2. It generates a couple of files and folder. How can i package them into single self extracting executable file?

Any kind of help, suggestion or link would be highly appreciated.

Regards,
Wasif Ehsan.

Size of COM objects

drabiger10-Oct-06 21:33

drabiger

10-Oct-06 21:33

Hi.

How do I get the size of a COM object in C#?
Note that the COM objects I refer to support IPersistStream, but the MaxSize property isn't really supported by them.

Thanks alot.
Dirk

Adding custom property pages to Outlook 2003 using C# <-- Question

SquallNaruto10-Oct-06 21:15

SquallNaruto

10-Oct-06 21:15

Hi,

I have a question on the article mentioned in the Subject.
I find it really helpfull but i have one Probleme.
I working with .Net 2005 an MS Outlook 2007.
To bring it to the point my Problem is that my PropertyPage is not Displayed in the Options Menü.
I don't understand that because he is perfoming the pages.Add(new OptPage(), "UsrPage") Method but nothing happens.

I used the Debug mode and I realised that the Caption Property is ignored (never performed)

[DispId(-518)]
public string Caption
{
get{return "DEMO";}
}
But I really don't know why because up to this point everything is performed in the same way.
So I would be really thankfull if someone can help me

Thx in advanced

SquallNaruto

If one eye is focused on the goal
then only one eye is left to find the way

Assign shortcutkeys to combobox values in gridview

WillemM10-Oct-06 21:04

WillemM

10-Oct-06 21:04

To get work done a little faster with a datagridview I thought about assigning shortcut keys to value in one column. These shortcuts are configurable so that the user can change them. The code to find the right item for a given shortcut looks like this:

if (shortcutparts[0].ToLower() == "alt" && e.Alt &&<br />
	shortcutparts[1].ToLower() == e.KeyCode.ToString())<br />
{<br />
	itemsGridView.CurrentRow.Cells[1].Value = <br />
		group.Name;<br />
}<br />
else if (shortcutparts[0].ToLower() == "ctrl" &&<br />
	e.Control &&<br />
	shortcutparts[1].ToLower() == e.KeyCode.ToString())<br />
{<br />
	itemsGridView.CurrentRow.Cells[1].Value = group.Name;<br />
}

But there's a problem, that column is edited using a combobox, which doesn't accept the value I assigned to it, eventhough it does show the right value the first time. Anybody have an idea how I can get it to work?

WM.

What about weapons of mass-construction?

how to declare 2 dimensional arraylists in C#

Keshav V. Kamat10-Oct-06 21:04

Keshav V. Kamat

10-Oct-06 21:04

hello all,

I am new to C# and would like your help in this matter.

I know this is the syntax to declare a single dimensional arraylist in C#

ArrayList arraylist_name = new ArrayList().

Can anybody tell me as to how I can declare a 2 dimensional arraylist and access the same?

Thanks in advance.

Keshav V. Kamat
Systems Engineer
Siemens
India.

Re: how to declare 2 dimensional arraylists in C#

WillemM10-Oct-06 21:09

WillemM

10-Oct-06 21:09

The best way to create that is to use the hashtable, although its a map and not a list you can still access the keys as if they were a list of values.

Hashtable table = new Hashtable();

To create a two dimensional arraylist you will have to write something like this:

ArrayList list1 = new ArrayList();

for(int x = 0; x < 10; x++) {
list1.Add(new ArrayList());
}

but this uses significant more memory and is not advisable if you only need the first lists index to access the second list. In that case you are better of with a hashtable that uses an Int32 value as key and ArrayList as value.

WM.

What about weapons of mass-construction?

Re: how to declare 2 dimensional arraylists in C#

Keshav V. Kamat10-Oct-06 21:11

Keshav V. Kamat

10-Oct-06 21:11

thanks.

i will try that out.

Keshav V. Kamat
Systems Engineer
Siemens
India.

Re: how to declare 2 dimensional arraylists in C#

wheelerbarry10-Oct-06 22:39

wheelerbarry

10-Oct-06 22:39

Ther are 2 things you could do.

1) If you know the size of the dimention you want to create, you could make an array of ArrayList.

ArrayList []list = new ArrayList[10];    // 10 * x

for( int i = 0; i < 10; i++ )
{
  list[i] = new ArrayList();
}

2) If you want a variable length (dont know the length) you could create an ArrayList of ArrayLists.

ArrayList list = new ArrayList();    // The main arraylist

ArrayList subList = new ArrayList();    // Secondary list you want in the main array.

list.Add(subList);

Re: how to declare 2 dimensional arraylists in C#

WillemM10-Oct-06 21:06

WillemM

10-Oct-06 21:06

ArrayList list = new ArrayList();
ArrayList<string> list2 = new ArrayList<string>();

for the normal array its

String[] strings = new String[10];

WM.

What about weapons of mass-construction?

Re: how to declare 2 dimensional arraylists in C#

Keshav V. Kamat10-Oct-06 21:08

Keshav V. Kamat

10-Oct-06 21:08

Thanks for the reply.

But I dont think you got my question right.

I dont want to declare 2 single-dimensional arrays separately.

I want to declare a 2-dimensional array like the one you do with the normal array like this

string[,] string_name=new string[10,10];

See if you know.

Keshav V. Kamat
Systems Engineer
Siemens
India.

Re: how to declare 2 dimensional arraylists in C#

WillemM10-Oct-06 21:10

WillemM

10-Oct-06 21:10

Hmm, something is up with the post Poke tongue | ;-P

I just saw two posts and now there's just one... Ah well, must be me sleeping again. See the answer posted earlier Smile | :)

WM.

What about weapons of mass-construction?

animatiom control

Parshant Verma10-Oct-06 21:01

Parshant Verma

10-Oct-06 21:01

Hi how can i add avi files to my application.
is three any control for this purpose

Re: animatiom control

Alper Camel11-Oct-06 4:32

Alper Camel

11-Oct-06 4:32

Hi,

in the directx library,
there exist a video library,
that you play, forward, reward, gather the current position,
total duration properties and methods like play pause stop.. etc..

just downlad the directx latest sdk... Wink | ;)

but it is a little big size to download... Suspicious | :suss:

Date Time format in Grid view

Shahzad.Aslam10-Oct-06 20:30

Shahzad.Aslam

10-Oct-06 20:30

I want to set the datetime format in gridview control column.

Folder browse exception

Parshant Verma10-Oct-06 19:24

Parshant Verma

10-Oct-06 19:24

HI when i open a flderbrowse dialog box and select folder
"F:\Documents and Settings\Parshant\Local Settings\Application Data\Identities\{9A42BBED-20C1-4620-9381-F7ACFB5D1809}\Microsoft\Outlook Express"

then it throw a exception "invalid access to memory location"
But when select at another location it works perfect.

i written the code

DialogResult result = folderBrowserDialog.ShowDialog();
if(result==DialogResult.OK)
lbl_dbx_folder_info.Text=folderBrowserDialog.SelectedPath.ToString();

Parshant

Re: Folder browse exception

quiteSmart10-Oct-06 20:53

quiteSmart

10-Oct-06 20:53

HI,

you either don't have access to that folder or it is simply not found. Smile | :)

jamil abou khalil

Re: Folder browse exception

Parshant Verma10-Oct-06 21:04

Parshant Verma

10-Oct-06 21:04

But in case of "openfiledialog"
file is simply seleted in side
"F:\Documents and Settings\Parshant\Local Settings\Application Data\Identities\{9A42BBED-20C1-4620-9381-F7ACFB5D1809}\Microsoft\Outlook Express"

no exception thrown.But in folderbrowsedialoge problem occure.

plz help

shList View is not getting cleared

Aslam Bari10-Oct-06 18:26

Aslam Bari

10-Oct-06 18:26

Hello All,
I have a user control. which contains a tree view as well as list view control. One at a time will show. I have problem with ListView. I am adding item in at runtime on OnDraw method. I have also override OnMesureItem. Now i want to clear the the item. But there is some problem with it. When i click on submit button, old items should cleared and new ones should be added. But when i click on submit button. The new items added to the list , they are not getting cleared.
I used:-
Item.Clear();

Can anybody help me.

Create events for windows User Control.Urgent!!!

RenuKhot10-Oct-06 18:21

RenuKhot

10-Oct-06 18:21

How do we create events for a user control which is dynamically added?

Thanks in advance

R.K

Re: Create events for windows User Control.Urgent!!!

Aslam Bari10-Oct-06 18:58

Aslam Bari

10-Oct-06 18:58

In Your control which is too added class;-
Declare delegate:-
public delegate void ShowTextEvent(string str,EventArgs e);

Declare event:-
public void ShowTextEvent MyEvent;

/////////////////////////////////////////////////////////////////////
void somemethod()
{
//////////////////////////////// Control is added
Controls.Add(NewControl);
/////////////////////////////// Setting Event to this.
NewControl.MyEvent+=new ShowTextEvent(OnMyEvent);

}

////Handler
void OnMyEvent(string str,EventArgs e)
{

}

Re: Create events for windows User Control.Urgent!!!

RenuKhot10-Oct-06 23:18

RenuKhot

10-Oct-06 23:18

Hi aslam,
i have a user control created with a button on it.
I am creating an instance of this user control using statments
IComponent newComponent = Activator.CreateInstance(componentClass, objparams) as IComponent;
now i need to add event to this component.
i want the click event of the user control.

please help.

thanks in advance.

c# and xml

moadbrkt10-Oct-06 16:37

moadbrkt

10-Oct-06 16:37

how can i change tags in xml file such as attachment picture with another one automaticly when another attachment arrive to some folder such that i have a attachment picture name rrr.jpg and i want a program to change the name of the attachment when a new picture arrive to a folder and replace it with the new pic that arrive if any as a loop every 30 sec to check if there is a new pic and replace it with the arrived pic and also save the xml file after modification in spicific location and also if the program could replace the old pic with the new one and the program must run always and check for new pic and i hear that this could be done using C# so if any body can help me thatwill be so nice thanks for your time

moadbrkt

Re: c# and xml

Andrei Ungureanu10-Oct-06 19:08

Andrei Ungureanu

10-Oct-06 19:08

moadbrkt wrote:
how can i change tags in xml file such as attachment picture

Use XMLDocument to load your XML String or XML File and then iterate on it and when you reached the desired node use InnexText to set the new text.

moadbrkt wrote:
the program must run always and check for new pic

Try using a WindowsService

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