Re: tree view in windows application using c# - C# Discussion Boards

Re: Dialing a modem from c#

2-Mar-08 21:46

add column in DataTable then bind...

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Dialing a modem from c#

Prajin2-Mar-08 19:19

Prajin

2-Mar-08 19:19

Hi,

I want to communicate to a modem from c# code. If any of you have idea about implementing this please share with me.

Thanks in advance

Prajin

Laubi2-Mar-08 20:10

Laubi

2-Mar-08 20:10

Take at loot at this link: http://www.codeproject.com/KB/IP/#Internet%20&%20Network%20-%20Dialup[^]

There you find several articles about dialing..

tree view in windows application using c#

monuSaini2-Mar-08 19:00

2-Mar-08 19:00

Hello Friends,

I want to create the multilevel tree view in windows application using c#2.0.

I want to add the nodes in tree view form .
If one node has its child then that should be added under that parent node.

Which I am not able to do.

Regards,

rahul saini

Xmen Real 2-Mar-08 21:56

2-Mar-08 21:56

use

TV.Nodes.Add();

to add a node in treeview,
and google, for more info

monuSaini2-Mar-08 22:01

2-Mar-08 22:01

hi,
Thanks for your rply.
Actually I added the nodes in TV but not able to add child node under its parent node.

I am not able to find its parent node. To find I am using this :

treeNode findNode = new treeNode();
findNode = myNode.Nodes.Find(objReader["catId"].ToString(), true);

but giving the following error :

Cannot implicitly convert type 'System.Windows.Forms.TreeNode[]' to 'System.Windows.Forms.TreeNode'

Regards,

rahul saini

Xmen Real 2-Mar-08 22:19

2-Mar-08 22:19

Find() return type is TreeNode[] so how can you assign TreeNode[] to TreeNode

The code will be :

TreeNode[] TN = myNode.Nodes.Find(objReader["catId"].ToString(), true);

to add node as child node, here is a sample

TV.Nodes[<Index Of Parent Node>].Nodes.Add()

hope this will help

monuSaini2-Mar-08 22:40

2-Mar-08 22:40

Thanks for this.

The error does't come again.

But not sure whether it finds the search node in treeNode.

Actually I m using the following code for populating the tree.

But not able to do as all the nodes are comming on same level.
If any node has child then its chils will be added under that.Not successed in doing this.

private void createTreeView2(string id)
{
TreeNode myNode = new TreeNode();
TreeNode findNode = new TreeNode();
string connStr = connString;
SqlConnection myConn = new SqlConnection(connStr);
string sqlQuery = "SELECT * from article where parentId='" + id + "'";
myConn.Open();
SqlCommand myCommand = new SqlCommand(sqlQuery, myConn);
SqlDataReader objReader = myCommand.ExecuteReader();

while (objReader.Read())
{

myNode = new TreeNode();

myNode = myNode.Nodes.Add(objReader["articleId"].ToString(), objReader["articleName"].ToString());
TreeNode[] findNode = myNode.Nodes.Find(objReader["articleId"].ToString(), true);

tvArticle.Nodes.Add(myNode);
if (isChild(objReader["articleId"].ToString()))
{

createTreeView2(objReader["articleId"].ToString());
}

}

}

This is my requirement.

rahul saini

Xmen Real 3-Mar-08 4:40

3-Mar-08 4:40

ah, can you explain in details what exactly you want...as without knowing exactly, i cannot tell where is the problems

monuSaini3-Mar-08 17:37

3-Mar-08 17:37

-Electronics
-TV
-Screen
58 CM
62 CM
68 CM
-Stereo
-withFm
-Washing
-washingMachine
-drymachine
Here are 4 levels but this could be any number of levels. What we want is to display this in tree view (+, -).

Following is the sample database.
articleID(auto incrementID) parentArticleId articleName status
1 0 Electronics A
2 0 Washing A
3 1 TV A
4 1 Stereo A
5 2 washingMachine A
6 2 dryMaching A
7 3 Screen A
8 7 58 cm A
9 7 62 Cm A
10 7 68cm A
11 4 With Fm A

This is the explanation of the requirement.

Regards,

rahul saini

Xmen Real 3-Mar-08 19:38

How to retrieve Exchange Server Address Book using C#

3-Mar-08 19:38

here is simple code :

if (objReader["parentArticleId"] == 0)
               TV.Nodes.Add(objReader["articleId"].ToString(), objReader["articleName"].ToString());
           else
           {
               TreeNode[] findNode = TV.Nodes.Find(objReader["articleId"].ToString(), true);
               findNode[0].Nodes.Add(objReader["articleId"].ToString(), objReader["articleName"].ToString());
           }

hope it will work

User Name

rozhanin2-Mar-08 18:52

rozhanin

2-Mar-08 18:52

Hi,

I wanted to find out the user name of the application.
Example: user name: rozhanin
I looked up on the net and i find answers which return the login name (dz2344).
I used the Active Directory and was able to find out the name (rozhanin), but this does not work on some computers. Frown | :(

Is there any other method to find the user name.
your help will be greatly appreciated.

Thanks!!

Re: User Name

dipak.dipak2-Mar-08 19:49

dipak.dipak

2-Mar-08 19:49

Hello,
If u r using Window Application than u may use SystemInformation. Like --

SystemInformation.UserName

Please reply.
Best of Luck.

Dipak

Re: User Name

rozhanin2-Mar-08 20:05

rozhanin

2-Mar-08 20:05

Hi Dipak,

Like i told you by using SystemInformation.UserName gives me the login id(example: dz1234) on the network. I wanted to find the name of the person with this login id (example: rozhanin).

I could achieve this by using InterOp.ActiveDs.dll, but this does not work on some computers. Is there any other method to find the Name of the user given the login id??

Thanks for your reply ,
rozhanin.

puneet.priyadarshi2-Mar-08 18:41

puneet.priyadarshi

2-Mar-08 18:41

Hi! all.Right now m making a win Email application.I need to create a user interface and so users can select the recipients from Exchange Server Address Book, so user can send e-mail with attachment to the recipients in web application. so, anybody have any idea about that.i need a sample so i can use it in my project.
thanks..

Data type conflict from C++ to C#

CodingLover2-Mar-08 18:20

CodingLover

2-Mar-08 18:20

Hi all,

I already convert a C++ project to C# project. It's fine and working ok.

On C++ I use DWORD data type. But in C# for that I used just a int value. Is that ok. Is there compatible data type which I can use for my project.

Thanks. Smile | :)

I appreciate your help all the time...
Eranga Smile | :)

Christian Graus2-Mar-08 18:44

Christian Graus

2-Mar-08 18:44

Are you having an issue, or are you just worried in general ? long is bigger than int in C#.

Christian Graus - Microsoft MVP - C++

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

CodingLover2-Mar-08 19:21

CodingLover

2-Mar-08 19:21

Actually I worried this because it related with registry. So new value type should be compatible with registry data type REG_DWORD Smile | :)

I appreciate your help all the time...
Eranga Smile | :)

Rich Insley2-Mar-08 19:29

Rich Insley

2-Mar-08 19:29

UInt32 or Int32 are equivalent to DWORD in c#.