Re: Get values back from a child form - C# Discussion Boards

ChrisKo6-Nov-07 14:23

6-Nov-07 14:23

I agree, that way I can easily edit the text file and always have the highest score without ever playing. Big Grin | :-D

I need a code in C

ur_sagar_546-Nov-07 10:50

ur_sagar_54

6-Nov-07 10:50

Please provide me code for General peer to peer application as in GNUTELLA..

I have the all guidelines to write the program but dont know socket programming....

can anyone reply please so that we can share things and let me understand the code as soon as possible......

Thank you in advance

sagar

Re: I need a code in C

Guffa6-Nov-07 11:10

Guffa

6-Nov-07 11:10

ur_sagar_54 wrote:
I need a code in C

Do you really need code in C, or do you mean C++ or C#?

Please read the forum guidelines[^], especially points 1, 2 and 3.

Experience is the sum of all the mistakes you have done.

Re: I need a code in C

Anthony Mushrow6-Nov-07 13:33

Anthony Mushrow

6-Nov-07 13:33

Also asking for code won't get your very far. If you don't know socket programming, then go and look at a tutorial. If you don't understand something, or if something doesn't work, then you can ask for help in the appropriate forum.

My current favourite word is: Waffle

Cheese is still good though.

Re: I need a code in C

Paul Conrad6-Nov-07 15:54

Paul Conrad

6-Nov-07 15:54

If you need it in C, you are in the wrong place. This is for C# Roll eyes | :rolleyes:

"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus

Re: I need a code in C

ur_sagar_5415-Nov-07 13:48

ur_sagar_54

15-Nov-07 13:48

thank you for ur concern........
Please help me because i have to submit my project.....
if you are interested i ll give you the details of the project..
please reply me as soon as posible....
I cant post it in C#..
I am sorry

sagar

Get values back from a child form

belzer6-Nov-07 10:39

belzer

6-Nov-07 10:39

Hello Form
I know there are many ways to send parameters form a parent to a child via constructer etc. but how can I get the value back.
I have a grid with the data (not bound to a data base), and by clicking on a button a new from opens where the user can modify the data, how can I get the data back so I can display the modified data on the grid?
Thanks

Re: Get values back from a child form

Ennis Ray Lynch, Jr.6-Nov-07 11:07

Ennis Ray Lynch, Jr.

6-Nov-07 11:07

Create an event on a child form and register the listener on the parent. Also, if you pass an object to the child form the data will be retained by the two. Thus, instead of creating an event, you would only need to listen to the child form's closed event.

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Re: Get values back from a child form

belzer6-Nov-07 11:16

belzer

6-Nov-07 11:16

thanks,
i am new at this, do you have any small example how to pass an object, update it in the child form, and get the updated values in the parent form
Thanks Again

code for prev and next buttons In Datalist Using C#.net

cwah6-Nov-07 10:01

cwah

6-Nov-07 10:01

I retrevied the Images from Database And Display In datalist.
I used Two Buttons(prev and Next).
Here I place one image control at the top.
At Bottom In datalist All the Images is displaying.
At first in that image control first image will be displaying.
if we click next button then next image will be displayed.
if we click previous button then previous image will be displayed.

Here this buttons is not working.please Send the code In Detail Immediatly.
Its Urgent.

Thanking You,
CWAHHHHHH

Global::

#realJSOP6-Nov-07 9:59

#realJSOP

6-Nov-07 9:59

I found this in some code I'm working on:

class MyClass
{
    private MyObject obj;

    public MyClass()
    {
        obj = new global::MyObject();
    }

}

What does the "global::" do?

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
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Re: Global::

Colin Angus Mackay6-Nov-07 10:08

Colin Angus Mackay

6-Nov-07 10:08

John Simmons / outlaw programmer wrote:
What does the "global::" do?

Namespaces and class names and such can be resolved relatively from what is in the using statements. Prefixing a type name with global:: forces the compiler to start from the top of the namespace tree.

using System;
...
Console.WriteLine(); // The compiler can work out this is in the system namespace
 
using System;
using MyConsoleStuff; // with a class named Console
Console.WriteLine(); // The name is ambiguous. Is it System.Console or 
                     // MyConsoleStuff.Console
 
System.Console.WriteLine(); // Resolved the above ambiguity
 
global::System.Console.WriteLine(); // Resolves the ambiguity in case something else has
                                    // a System namespace nested somewhere.

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Re: Global::

N a v a n e e t h6-Nov-07 19:06

N a v a n e e t h

6-Nov-07 19:06

Colin Angus Mackay wrote:
global::

Is this new to .NET 2.0 ?

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

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Re: Global::

Colin Angus Mackay6-Nov-07 21:54

Colin Angus Mackay

6-Nov-07 21:54

N a v a n e e t h wrote:
Is this new to .NET 2.0 ?

I think it is although I'm not 100% sure.

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Secure my code

merwa6-Nov-07 9:12

merwa

6-Nov-07 9:12

I want to encapsolate my code no one can see the code even he get my source code(project soulution)

merwa

Re: Secure my code

Giorgi Dalakishvili6-Nov-07 9:19

Giorgi Dalakishvili

6-Nov-07 9:19

And what about you? How will you read/write/edit your own source code?

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Re: Secure my code

Colin Angus Mackay6-Nov-07 9:20

Colin Angus Mackay

6-Nov-07 9:20

Osmosis

Upcoming FREE developer events:
* Glasgow: SQL Server Managed Objects AND Reporting Services ...

My website

Re: Secure my code [modified]

snorkie6-Nov-07 9:27

snorkie

6-Nov-07 9:27

Probably the best way to do it is with Whitespace. Most people will open the source code file and see nothing. You will see a perfectly formatted program ready to do your bidding!

Hogan

-- modified at 15:57 Tuesday 6th November, 2007

Re: Secure my code

Christian Graus6-Nov-07 9:37

Christian Graus

6-Nov-07 9:37

What you're asking is insane. You can obsfucate the code inside the exe, but with .NET people will always be able to read it. To say people can't see it if they have it, is just plain ridiculous.

You *could* write some sort of add in that encrypts the source code as it's saved and decrypts it into the IDE, but why bother ?

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 )

Re: Secure my code

Paul Conrad6-Nov-07 15:56

Paul Conrad

6-Nov-07 15:56

You can obfuscate your executable code, but you cannot secure your source code from others seeing it.

"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus

License Software

usermans6-Nov-07 9:02

usermans

6-Nov-07 9:02

I developed a windows application using C# and I want to license it to the buyer using a serial number, like any software one buys, but I don’t know how to do it. Can anyone help me on this?

Re: License Software

Christian Graus6-Nov-07 9:38

Christian Graus

6-Nov-07 9:38

There are third party solutions, it depends how far you want to go. Do you want to generate licenses, or have a single key ? The easiest way to generate them is have a name/key pair, so the key is generated from the name.

Create a Folder

T4AMD6-Nov-07 8:50

T4AMD

6-Nov-07 8:50

Below is my code and everytime I try to create a Folder it gives me an error which is in the Exception"00810". So, I dont know where the error lies?? Can someone please help?? Thanks.

private void btnCreate_Click(object sender, EventArgs e)
{
try
{
if (tvFavorites.SelectedNode.Tag == null)
{
OleDbCommand insertfolder = new OleDbCommand("insert into favFolders (folder_name,folder_parent) values('" + txtFolderName.Text + "'," + tvFavorites.SelectedNode.Name + ") ", dbProfiles);
if (dbProfiles.State == ConnectionState.Closed)
dbProfiles.Open();
insertfolder.ExecuteNonQuery();
string folder_id = "";
insertfolder.CommandText = "select max(folder_id) from favFolders";
folder_id = insertfolder.ExecuteScalar().ToString();
TreeNode tn = new TreeNode();
tn.Name = folder_id;
tn.Text = txtFolderName.Text;
tvFavorites.SelectedNode.Nodes.Add(tn);
dbProfiles.Close();
}
else
{
OleDbCommand insertfolder = new OleDbCommand("insert into favFolders (folder_name,folder_parent) values('" + txtFolderName.Text + "'," + tvFavorites.SelectedNode.Parent.Name + ") ", dbProfiles);
if (dbProfiles.State == ConnectionState.Closed)
dbProfiles.Open();
insertfolder.ExecuteNonQuery();
string folder_id = "";
insertfolder.CommandText = "select max(folder_id) from favFolders";
folder_id = insertfolder.ExecuteScalar().ToString();
TreeNode tn = new TreeNode();
tn.Name = folder_id;
tn.Text = txtFolderName.Text;
tvFavorites.SelectedNode.Parent.Nodes.Add(tn);
dbProfiles.Close();
}
txtFolderName.Text = "";
lblFolderName.Visible = false;
txtFolderName.Visible = false;
btnCreate.Visible = false;
btnCancel.Visible = false;
}
catch (Exception ex)
{
func.ErrorReporter(ex, "008010");
}
}

Re: Create a Folder

Christian Graus6-Nov-07 9:43

Christian Graus

6-Nov-07 9:43

What line gives the error ? What do you mean by 'create folder', how does this code access the file system ?

Re: Create a Folder

T4AMD6-Nov-07 10:46

T4AMD

6-Nov-07 10:46

btnCreate_Click event creates or supposed to create a Folder. But everytime I click on btnCreate Button to create a button it gives me an error message "Object not set to an instance of an object" The file system is accessed through Access Database

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