C# Discussion Boards - CodeProject

Re: Disable Close(X) in a form

4-Sep-09 2:14

See this thread :

http://www.codeproject.com/Messages/3180685/Re-how-to-disable-close-button-of-windows-form.aspx[^]

PIEBALDconsult4-Sep-09 5:35

PIEBALDconsult

4-Sep-09 5:35

See this[^] thread.

DataGrid

Wamuti3-Sep-09 22:44

Wamuti

3-Sep-09 22:44

Hi all. I want to get the columns in a DataGrid as an Array and i am trying such a piece of code:

foreach (DataGridViewColumn column in dataGridAppointments.Columns)
{
      ...
}

Where dataGridAppointments is a DataGrid control. I keep on getting the error message:
'System.Windows.Forms.DataGrid' does not contain a definition for 'Columns'.

How can i manage to loop through the collection of columns.

Wamuti: Any man can be an island, but islands to need water around them!
Edmund Burke: No one could make a greater mistake than he who did nothing because he could do only a little.

stancrm3-Sep-09 22:48

3-Sep-09 22:48

dataGridAppointments is not a DataGridView.

Wamuti3-Sep-09 23:04

Wamuti

3-Sep-09 23:04

Thanks. So how do i get the columns in the DataGrid?

Wamuti: Any man can be an island, but islands to need water around them!
Edmund Burke: No one could make a greater mistake than he who did nothing because he could do only a little.

stancrm4-Sep-09 0:28

4-Sep-09 0:28

Just for example :

DataGrid dataGrid;
.
.
.
to get Cell :
dataGrid[0, 0] -> means cell at row 0 and column 0
.
.
.

so... you can enter any number.

Calla4-Sep-09 0:11

Calla

4-Sep-09 0:11

If you are in fact using a DataGrid you cannot use DataGridViewColumn since the DataGrid and the DataGridView are two different classes. I believe the DataGrid is in the System.Web.. namespace and DataGridView in the System.Windows.Forms namespace. Are you developing a WinForm application or a webb application?

Greg Chelstowski4-Sep-09 1:19

Greg Chelstowski

4-Sep-09 1:19

Calla wrote:
I believe the DataGrid is in the System.Web.. namespace and DataGridView in the System.Windows.Forms namespace. Are you developing a WinForm application or a webb application?

You're wrong.
DataGrid is a control in System.Windows.Forms
It's just way older than DataGridView and does not have a Columns collection.

var question = (_2b || !(_2b));

foreach listview and webbrowser document completed passing variables

Calla4-Sep-09 2:57

Calla

4-Sep-09 2:57

Okay then.. my bad Blush | :O

iNutR3-Sep-09 22:35

iNutR

3-Sep-09 22:35

so ive got a webbrower which is filling in a form.
im using a listview to fill in different data for each listview item.
i call the fill webpage method, but i cant pass any variables to it, because its a documentcompleted event.
so i tried config settings, but it goes so fast that the settings dont change in time and they send the same data over and over, the amount of times is the amount of items.

so this is what i have:

private void cmd_Click(object sender, EventArgs e)
        {


foreach (ListViewItem item in lvAccounts.Items)
                {

//do my thing

Properties.Settings.Default.iEmail = iEmail;
Properties.Settings.Default.tehEmail = tehEmail;
Properties.Settings.Default.Save();
webBrowser1.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(SendMail);
webBrowser1.Navigate(myURL);

//do other stuff
}
}

private void SendMail(object sender,WebBrowserDocumentCompletedEventArgs e)
        {
            HtmlDocument document = webBrowser1.Document;

            document.GetElementById("to").SetAttribute("value", Properties.Settings.Default.iEmail);
            document.GetElementById("body").SetAttribute("value", Properties.Settings.Default.tehEmail);
             document.GetElementById("submit").InvokeMember("click");
        }

thats the only way i see that i can pass variables on.
but i really need to know how to, because it sends the same thing, and sometimes the second on the list, if the list is long and takes a long time.

i basically want it to fill in the webbrowser one time with each listview item, with the different values.

please help Big Grin | :-D

Need Help: Converting int[] based Radix Sort to string[] based Radix Sort [modified]

gamer11273-Sep-09 22:14

gamer1127

3-Sep-09 22:14

Hello. I got a code here in codeproject.com about radix sorting but it only sorts int based data. I want to use it to sort a string based data. My first try is I got first the ASCII codes of each characters in the strings then passed it in the radix sort code but what it gives me is totally different.

This is the link of the code that I got:

click here

Here is the output after getting the ASCII codes and pass it to the radix sort:

SHOW DATABASE: SORTING BY LAST NAME

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

97

97

97

110

110

111

111

111

114

115

115

115

117

122

122

What should I do for it to be able to sort string?

modified on Friday, September 4, 2009 6:02 AM

Re: Need Help: Converting int[] based Radix Sort to string[] based Radix Sort

Richard MacCutchan4-Sep-09 0:04

Richard MacCutchan

4-Sep-09 0:04

It would be more sensible to write a sort routine that accepts strings and sorts them by character order. Alternatively you could use one of the built in List/Array etc types that support sorting via one of their member functions.

Re: Need Help: Converting int[] based Radix Sort to string[] based Radix Sort

Luc Pattyn4-Sep-09 0:56

Luc Pattyn

4-Sep-09 0:56

Hi,

I don't know why you insist on using radix sort, as it will be slower than a regular sort when sorting strings.

Here is how it could work:
- determine the length L of the longest string;
- treat all strings as having length L by virtually appending NULL characters;
- the Nth "digit" of a string has a value that equals the (int) value of its Nth character (where you use zero if N exceeds the string length).

So sort all strings according to their (L-1)th character
then sort according to their (L-2)th character
etc
and finally sort according to their first character

As I said, it will be slow, as you have to get the characters, one by one, and compare those, whereas a normal sort would be based on a comparer method (such as string.Compare) that takes the whole string into account right away.

Smile | :)

Luc Pattyn

Badger | [badger,badger,badger,badger...]

Have a look at my entry for the lean-and-mean competition; please provide comments, feedback, discussion, and don’t forget to vote for it! Thank you.

Passing paramaters to Process

cdpace3-Sep-09 22:12

cdpace

3-Sep-09 22:12

hello guys,

I am in a situation where I have an application that needs to be called from another application and then pass parameters and set properties to this application.

I cannot do this by Reflection as its not a DLL, and I cannot do it by calling Process.Start(..,arguments); and pass the arguments because the application dosen't have a public static void Main method.

Do you know any way in which i can achieve this guys?

stancrm3-Sep-09 22:16

3-Sep-09 22:16

??? What kind of application is that ???
Not a DLL but an EXE without start point ???

cdpace3-Sep-09 22:23

cdpace

3-Sep-09 22:23

Yes sorry you have a point it has a public static void Main sorry my mistake Wink | ;)

. This is a normal windows forms application C#. now the thing is i can pass strings to the main method but i need to pass a reference to an instance of something. is that possible?

stancrm3-Sep-09 22:33

3-Sep-09 22:33

yes, using reflection :
see this :
http://blogs.msdn.com/csharpening/archive/2007/12/19/using-reflection-to-automate-testing-of-an-exe-file.aspx[^]

Dave Kreskowiak4-Sep-09 2:25

Dave Kreskowiak

4-Sep-09 2:25

You can't pas a reference between processes. The reference will not valid in the process you're passing it to.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...