Re: Creating a popup from - C# Discussion Boards

Re: Why is there a ContextMenu Property on TreeView?

Colin Angus Mackay11-Nov-05 23:38

11-Nov-05 23:38

Your first attempt looked the best. All that you were doing wrong was converting the point to the client coordinates of the Form rather than the client coordinates of the TreeView. I'm guessing the 80 pixels off the mark was because your tree view is 80 pixels from the top of the form.

Point rawCursorPosition = Cursor.Position;
Point clientCursorPosition = TreeView.PointToClient(rawCursorPosition);
TreeNode node = TreeView.GetNodeAt(clientCursorPosition) as TreeNode;

Does this help?

My: Blog | Photos

"Man who stand on hill with mouth open will wait long time for roast duck to drop in." -- Confucious

Re: Why is there a ContextMenu Property on TreeView?

SeanCM14-Nov-05 6:33

SeanCM

14-Nov-05 6:33

Yes it did help. Thank you very much. One question I do have though is, is it better to use the MouseDown/MouseUp events or the Context_Popup event for context menus? Most examples I see seem to use the MouseDown (which I find a bit odd since most Windows Apps use MouseUp...Windows Explorer for example) Yet I would think the Popup would offer the least overhead... I don't know, just curious which is why I asked.

Thank you once again.

Sean

-- modified at 12:34 Monday 14th November, 2005

sidebar

faviochilo11-Nov-05 8:26

faviochilo

11-Nov-05 8:26

Hi friens:

How i can do a window form in a Side Bar ...similiar to : http://desktop.google.com/es/images/sidebar_gmail.gif[^] ?

Re: sidebar

leppie11-Nov-05 10:55

leppie

11-Nov-05 10:55

Did you try searching the articles here on CP? D'Oh! | :doh:

^{xacc.ide-0.1-rc2 released! Download and screenshots}

Creating a popup from

naglbitur11-Nov-05 7:28

naglbitur

11-Nov-05 7:28

Hi.
I was just playing around but got into some trouble.
I created a form (f1) with a button. I want that when the button is clicked that another form (f2) springs up with some control on it (a label or another button) and I also want to be able to draw a string or a line on that form (f2). How do I do that? The line I draw is always on f1 but not on f2? I had no problem putting a Label control on f2 but drawing a simple line on f2 just beats me!
Can someone please help me?
Thanks,

FJ

Re: Creating a popup from

Wjousts11-Nov-05 7:55

Wjousts

11-Nov-05 7:55

Override the OnPaint method of f2 and draw your line there.

Re: Creating a popup from

naglbitur11-Nov-05 9:36

naglbitur

11-Nov-05 9:36

Thanks for answering but I am not following you Frown | :(

This is what I did when the button on f1 is clicked:
private void button1_Click(object sender, EventArgs e)
{
Form f2 = new Form();
f2.Show();
Label l = new Label();
f2.Controls.Add(l);
l.Location = new Point(30, 30);
l.Text = "Hello";
}
protected override void OnPaint(PaintEventArgs e)
{
Graphics g = e.Graphics;
Pen p = new Pen(Color.Black, 2);
Point p2 = new Point(50, 70);
Point p3 = new Point(50,100);
g.DrawLine(p, p2, p3);
}
The line is drawn on the underlying form (f1) but not on f2 like I wanted it to be.
Regards,

FJ

Re: Creating a popup from

Wjousts11-Nov-05 10:59

Wjousts

11-Nov-05 10:59

naglbitur wrote:
protected override void OnPaint(PaintEventArgs e)
{
Graphics g = e.Graphics;
Pen p = new Pen(Color.Black, 2);
Point p2 = new Point(50, 70);
Point p3 = new Point(50,100);
g.DrawLine(p, p2, p3);
}

This should be in the class of f2 not f1. But since you are using a generic Form instead of creating a new class that inherits from Form I guess you could hook the f2.Paint event and do your drawing there. Something like this:

<code>
// After you create the form in your button click handler
f2.Paint += new new PaintEventHandler(f2_Paint);
.
.
.
private void f2_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
    Graphics g = e.Graphics;
    Pen p = new Pen(Color.Black, 2);
    Point p2 = new Point(50, 70);
    Point p3 = new Point(50,100);
    g.DrawLine(p, p2, p3);
}
</code>

send webcam stream over tcp ip

toan198111-Nov-05 7:15

toan1981

11-Nov-05 7:15

I'm currently working on a project where I have to send live stream from an usb webcam. I was able to view the webcam using DirectShowNET.dll, but I wasn't able to send the stream through tcp/ip. If anyone know how to do this please please show me the way.
Thank you very much.

email: toan1981@hotmail.com

EventInfo.GetRaiseMethod() - anyone made it work?

vSoares11-Nov-05 6:37

vSoares

11-Nov-05 6:37

Hi!

I need to raise some event dynamically through Reflection.

So I get the EventInfo but my EventInfo.GetRaiseMethod() allways returns null no matter i use the parameters true, false or none.

I saw several guys with this problem, but no solution.

Any ideas? Workarounds?

Thanks,

vSoares

Re: EventInfo.GetRaiseMethod() - anyone made it work?

leppie11-Nov-05 7:07

leppie

11-Nov-05 7:07

C# does not implement that. Get the field value of the event, cast to MulticastDelegate and invoke that to achieve what you need. Smile | :)

^{xacc.ide-0.1-rc2 released! Download and screenshots}

Creating Quick Launch like Applications

jgallen2311-Nov-05 5:54

jgallen23

11-Nov-05 5:54

There is an article for putting a progressbar in the taskbar ( http://www.codeproject.com/useritems/taskbarctrl.asp?msg=1263806#xx1263806xx ) and I was wondering if this can be done in C#. If so, can somebody help me out. I posted in that article, but nobody has gotten back to me. Any help would be appreciated!

Thanks
JGA

Re: Creating Quick Launch like Applications

Dwayner7911-Nov-05 8:22

Dwayner79

11-Nov-05 8:22

Not trying to be mean, but the author got back to you. You should start rewritting the code in c# and post specifics about what is not working. He is allowing you an entire working source code, and you just have to translate it. I do not understand what more you want.

*****************
"We need to apply 21st-century information technology to the health care field. We need to have our medical records put on the I.T." —GW

Re: Creating Quick Launch like Applications

Colin Angus Mackay12-Nov-05 3:27

Colin Angus Mackay

12-Nov-05 3:27

Dwayner79 wrote:
I do not understand what more you want.

He want someone to do his work for him.

My: Blog | Photos

"Man who stand on hill with mouth open will wait long time for roast duck to drop in." -- Confucious

Re: Creating Quick Launch like Applications

jgallen2313-Nov-05 18:19

jgallen23

13-Nov-05 18:19

I just need a start. His example does not even work on my computer so why would I try and convert code that doesn't work on my computer? I've done a lot of research and I just need to know how to get it started.

Dumping the DataGrid into a txt file

zaboboa11-Nov-05 5:29

zaboboa

11-Nov-05 5:29

Hello,

How can I dump a datagrid values into a text, or csv files?
Thank you.

Re: Dumping the DataGrid into a txt file

whizzs11-Nov-05 7:26

whizzs

11-Nov-05 7:26

Is your DataGrid bound to a dataset? If so, use DataSet.WriteXML() to write the info out to an xml file. If it is bound to a DataTable, I would add the table to a DataSet and use the above command. XML files can then be opened by word or excel or whatever. If not, then you need to use foreach loops and manually write out the data.

Problems with SharpZipLib

Ricardo Mendes11-Nov-05 5:20

Ricardo Mendes

11-Nov-05 5:20

Hi. I am using SharpZipLib in order to compress a text file. The compression works fine, but when I try to decompress, sometimes I get an error "Error baseInputStream GZIP header, first byte doesn't match". Below is the code I use to decompress:

GZipInputStream gzipInputStream = new GZipInputStream(new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read));
string tempPath = Path.GetTempFileName();
FileStream fileOutputStream = new FileStream(tempPath, FileMode.Open, FileAccess.Write, FileShare.None);

while(gzipInputStream.Available > 0)
{
byte b = (byte)gzipInputStream.ReadByte();
if(gzipInputStream.Available > 0)
fileOutputStream.WriteByte(b);
}

gzipInputStream.Close();
gzipInputStream = null;

fileOutputStream.Close();
fileOutputStream = null;

File.Copy(tempPath, path, true);
File.Delete(tempPath);

Does anyone know what I'm doing wrong?
Thanks

Call CHM content specific

Dwayner7911-Nov-05 4:35

Dwayner79

11-Nov-05 4:35

Depending on the userControl currently loaded, I want to capture the F1 and open up the help file to the section associated with that control.

I have the F1 captured and opening the help file to the main screen.

Here is my current code:

//initialize<br />
string HelpFileName = Application.StartupPath + @"\Help\PC3_Setup.chm";<br />
helpProvider1.HelpNamespace = HelpFileName;<br />
<br />
//call (from function either F1 or pressed help button)<br />
Help.ShowHelp(this, helpProvider1.HelpNamespace);

I do not want a tool tip or a pop up, I actually want to jump to the section of the help that is being worked on.

Thanks in advance...

*****************
"We need to apply 21st-century information technology to the health care field. We need to have our medical records put on the I.T." —GW

Got it

Dwayner7911-Nov-05 8:02

Dwayner79

11-Nov-05 8:02

Here is the answer in case it comes up in the future.

Help.ShowHelp(this, helpProvider1.HelpNamespace, HelpNavigator.Topic, @"whateverthishappenstobe.html");

*****************
"We need to apply 21st-century information technology to the health care field. We need to have our medical records put on the I.T." —GW

Excel Range object

zaboboa11-Nov-05 4:25

zaboboa

11-Nov-05 4:25

Hello,

Is it possible to populate the range of cells in Excel from the datagrid?
Instead of populating it cell by cell.

Thank you.

Re: Excel Range object

Dwayner7911-Nov-05 8:15

Dwayner79

11-Nov-05 8:15

try here
http://www.xtremevbtalk.com/

They have a stronger Excel group there. .NET stuff, you are way better here.

*****************
"We need to apply 21st-century information technology to the health care field. We need to have our medical records put on the I.T." —GW

How to get dependancies of SQL Functions?

pubududilena11-Nov-05 1:37

pubududilena

11-Nov-05 1:37

hi all,
In our Application ,we have to use 175 SQL Functions.So there are many dependancies between each other.
That mean ,If we creating a function,we have to use several function to create it.
So I need to create a function relation ship between each other.(like relatinship between Tables)

Is there a way to get dependancies and relation in functions?

thanks in advance.

Re: How to get dependancies of SQL Functions?

Colin Angus Mackay11-Nov-05 4:17

Colin Angus Mackay

11-Nov-05 4:17

pubududilena wrote:
Is there a way to get dependancies and relation in functions?

You can use sp_depends[^]

My: Blog | Photos

"Man who stand on hill with mouth open will wait long time for roast duck to drop in." -- Confucious

Window Form like Google Desktop ???

faviochilo11-Nov-05 1:28

faviochilo

11-Nov-05 1:28

Hi guys

I don't remember where (in COdeProject) is a sample of an window form that is part oh the Windows Desktop . It's similar to "Google Desktop Sidebar"

can you write the link please ??

Thanks

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.