Re: Generate ordered sequence of 11 numbers - C# Discussion Boards

jas0n232-Nov-08 1:37

jas0n23

2-Nov-08 1:37

Sorry about that muck up before. Smile | :)

Here is the code that I have as of your last post:

private void pictureBox3_Click(object sender, EventArgs e)
{
    TabPage page = new TabPage("Tab");
    tabControl1.TabPages.Add(page);
    WebBrowser wb = new WebBrowser();
    wb.Dock = DockStyle.Fill;
    wb.Name = "WebBrowser1";
    page.Controls.Add(wb);
    TabPage tp = tabControl1.SelectedTab;
    tp.Controls["WebBrowser1"].Text = string.Format("WebBrowser1", (tabControl1.SelectedIndex + 1).ToString());
}

Although it still tells me "object reference not set to instance of an object." and it points to the following line:

tp.Controls["WebBrowser1"].Text = string.Format("WebBrowser1", (tabControl1.SelectedIndex + 1).ToString());

Regards,
j.t.

Pedram Behroozi2-Nov-08 2:19

2-Nov-08 2:19

Oooooooooh,
Why didn't I notice before?
A WebBrowser control does NOT support the Text property!!!!
Laugh | :laugh:

But why did you get NullReferenceException?!! Confused | :confused:

I tried this code and did work for me well:

TabPage tp = new TabPage("Tab");
tabControl1.TabPages.Add(tp);
WebBrowser wb = new WebBrowser();

wb.Name = "WebBrowser1";
wb.Dock = DockStyle.Fill;

tp.Controls.Add(wb);

TabPage p = tabControl1.SelectedTab;
(p.Controls["WebBrowser1"] as WebBrowser).DocumentText = "Hello!";

When you're alone in the Dark, Fear will protect you...

jas0n232-Nov-08 3:05

jas0n23

2-Nov-08 3:05

You, Pedram, are a genius! Thank you so much for letting me pick at your brain! You have just solved my problem that i have had for the last 6weeks.

Regards,
j.t.

p.s.
if you would like to help me again, (just general advice), i need to create a "DocumentCompleted" event handler for the WebBrowser1 control. But I don't know how to do this programatically since there isn't one on my form design. Any advice would be much appreciated. Big Grin | :-D

best regards,
jason.

Pedram Behroozi2-Nov-08 5:16

Help With dataGridView Copy and Paste Feature

2-Nov-08 5:16

No problem Big Grin | :-D

jay_t55 wrote:
(just general advice)

Search Google, MSDN and CP articles for your will, they're more helpful and faster. If you got any problem, ask it here and if anybody can help, surely will help you. Good Luck Smile | :)

When you're alone in the Dark, Fear will protect you...

That Asian Guy1-Nov-08 9:02

That Asian Guy

1-Nov-08 9:02

I recently made a program for organizing marks and realized that it is slow and repetitive to type the same teacher's name 20 times for students in the same class.

I chose to add a little copy and paste feature when the user presses ctrl+v and the active cell becomes the contents of the clipboard.

Here is the snippet:

else if (e.Control && e.KeyCode == Keys.V)
            {
                if (Clipboard.ContainsText() &amp; dataGridView1.CurrentCell.OwningColumn.Index == 4)
                {
                    dataGridView1.CurrentCell.Value = Clipboard.GetText();
                }

                // If its the last row, add another row
                if (dataGridView1.CurrentCell.OwningRow.Index == nUD_counter)
                {
                    dataGridView1.Rows.Add();
                }
            }

What I'm having problems with is the last part, where I add another row (Microsoft made it so it would automatically add a row if the cell is edited by the user, but not programatically. The problem is that when I add the new row, it places it above the row which I just pasted info into such that:

col1       col2
a          b
<-blank line where I press ctrl+v->

It becomes

col1       col2
a          b
<-blank line where I press ctrl+v->
hi

How can I fix this? Also feel free to make suggestions on my code.

Thanks in advance.

modified on Saturday, November 1, 2008 5:23 PM

Re: Help With dataGridView Copy and Paste Feature

That Asian Guy1-Nov-08 14:47

That Asian Guy

1-Nov-08 14:47

I messed around with it a bit and ended up using SendKeys. I know this isn't the best method, but its the only one I tried so far that works.

Basically,

try
                    {
                        dataGridView1.BeginEdit(true);
                        String tempText = Clipboard.GetText();
                        tempText = tempText.Replace("{", "{{}");
                        tempText = tempText.Replace("}", "{}}");
                        tempText = tempText.Replace("{{{}}", "{{}");
                        tempText = tempText.Replace("(", "{(}");
                        tempText = tempText.Replace(")", "{)}");
                        tempText = tempText.Replace("+", "{+}");
                        tempText = tempText.Replace("^", "{^}");
                        tempText = tempText.Replace("%", "{%}");
                        tempText = tempText.Replace("~", "{~}");
                        SendKeys.Send(tempText);
                        SendKeys.Send("{DOWN}");
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.Message + "\n\nThe previous value was restored.", Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error);
                        dataGridView1.CurrentCell.Value = previousValue;
                    }

Generate ordered sequence of 11 numbers

J-Cod3r1-Nov-08 7:57

J-Cod3r

1-Nov-08 7:57

Hi,

I need to generate an ordered sequence of numbers from 1 - 9. At no point is any number allowed to be used twice.
There are 81 combinations.
So it would look something like this:
123456789,
192345678,
193456782,
194567823,
195678234,...
and so on.

Thanks Confused | :confused:

Re: Generate ordered sequence of 11 numbers

Luc Pattyn1-Nov-08 8:40

Luc Pattyn

1-Nov-08 8:40

Hi,

that has been asked and answered here[^].

And there are 9! permutations (that's 362880, not 81).

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

Fixturized forever. Confused | :confused:

datatable and datareader

Zeyad Jalil1-Nov-08 6:58

Zeyad Jalil

1-Nov-08 6:58

i have a datatable contain 3 columns(id,type,price);
and a sqldatareader have a 1 column(name);

i want to add the column(name) from sqldatareader to datatable
using datacolumn,,
please how I can do that??

thanks all

How can we create a plugin for IE with C# ?

Mohammad Dayyan1-Nov-08 5:32

Mohammad Dayyan

1-Nov-08 5:32

Hi all.
I wanna create a plugin for Internet Explorer with C# ?
How can I do it ?

Thank you

Re: How can we create a plugin for IE with C# ?

Pedram Behroozi1-Nov-08 6:21

1-Nov-08 6:21

Hi Mohammad,
Take a look here[^]. There's the same question, hope help Smile | :)

While (true) { Human.isLearnable = true; }

Splitting a MP3 file ?

Mohammad Dayyan1-Nov-08 4:53

Mohammad Dayyan

1-Nov-08 4:53

Hello.
I have a MP3 file. I wanna split it where the volume is silent.
How can I do it ?

Thanks in advance .

DaveyM691-Nov-08 5:06

DaveyM69

1-Nov-08 5:06

I don't know if this article[^] uses zero crossing for determining the split location - but it shold get you started.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Guffa1-Nov-08 5:59

Guffa

1-Nov-08 5:59

An mp3 file is divided into blocks, so you would only be able to split the sound stream between blocks. Also, it would be very hard to analyse the sound while it's compressed.

You have to decompress the file in order to easily analyse it and split it where you want. Then you can either save the parts as wave files or compress them into mp3 files.

Despite everything, the person most likely to be fooling you next is yourself.

Mohammad Dayyan1-Nov-08 6:05

Mohammad Dayyan

1-Nov-08 6:05

Thanks Guffa.
Do you have any references about it for further learning ?

How i CReate Ajax Control

DavidNohejl1-Nov-08 13:03

DavidNohejl

1-Nov-08 13:03

www.google.com[^]

[My Blog]
"Visual studio desperately needs some performance improvements. It is sometimes almost as slow as eclipse." - Rüdiger Klaehn
"Real men use mspaint for writing code and notepad for designing graphics." - Anna-Jayne Metcalfe

IshtiaqueJ1-Nov-08 4:18

IshtiaqueJ

1-Nov-08 4:18

How i CReate Ajax Control

How This Don.

I Want On Drop Down List.
When i Select any Item Then open other Window Which inClude Detail information about That Item

How This Done . Please Reply urgent

Please Send me Code

Ishtiaque Hussain Jalbani.

Thanks in advance

Re: How i CReate Ajax Control

Pedram Behroozi1-Nov-08 6:56