C# Discussion Boards - CodeProject

Re: File caching C#

harold aptroot28-Feb-09 6:24

harold aptroot

28-Feb-09 6:24

Isn't the file caching that Windows does enough?

I need real help from some of you! thanks.

Seraph_summer28-Feb-09 4:18

Seraph_summer

28-Feb-09 4:18

I know this may not be the appropriate place for me to ask about this quesiton, but I don't know
where can I ask this,I am really confused with the default page for the Html help workshop, I do believe someone who has used HTML help workshop can give me one hint:

I am using html help workshop to create the .chm for one c# application.

I try to set the default page by change "project options" and set "default file", but it does not work.

when I open the .chm and it always display "This program cannot display the webpage" on the first page. it does not display the default page I set. I don't know the reason.

by the way, except this problem, .chm works fine.

anyone has used html help workshop and please give me one hint for it.

Many thanks!!

Re: I need real help from some of you! thanks.

Henry Minute1-Mar-09 2:10

Henry Minute

1-Mar-09 2:10

Seraph_summer wrote:
"This program cannot display the webpage"

This is a well known problem. Unfortunately, it is so long since I used Help 2.0 that I cannot remember the solution.

What I did do however is to google "This program cannot display the webpage" Help 2.0 and I got loads of relevant hits.

Go on, give it a try. You know you want to. Smile | :)

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”

how to do the custom deployment of c# .net windows applications project ?

pramod251728-Feb-09 4:10

pramod2517

28-Feb-09 4:10

hi , how to do the custom deployment of vb.net windows applications project . for example after completing deployment project application , when we install .exe file i want to show two options
.custom install
.typical install
after when i click custom install it should be showing modules but i cont see modules how to add modules in custom installation .
please send me step by step how to custom install deployment of c#.net windows application.

Re: how to do the custom deployment of c# .net windows applications project ?

Calin Tatar28-Feb-09 4:16

Calin Tatar

28-Feb-09 4:16

Seems that you have to create a Setup Project in VS.

http://msdn.microsoft.com/en-us/library/ms228283.aspx[^]

Calin

Re: how to do the custom deployment of c# .net windows applications project ?

pramod251728-Feb-09 5:51

pramod2517

28-Feb-09 5:51

thanks for giving url , its very usefull Thumbs Up | :thumbsup:

Re: how to do the custom deployment of c# .net windows applications project ?

Calin Tatar28-Feb-09 13:17

Calin Tatar

28-Feb-09 13:17

Good luck!

Calin

Problem with Matrix control for rdlc file in win forms

Member 305788728-Feb-09 3:32

Member 3057887

28-Feb-09 3:32

Hi,
I've generated a report using Matrix control in a C# win application.
I want to display sum of the values of a column at the end. I request any one who knows this to help me in this task. I've done for a TABLE control by adding table footer. Now I need it for matrix

Thanks in advance

how to watch on a directory

WinSolution28-Feb-09 2:28

WinSolution

28-Feb-09 2:28

How to watch on directory let say "C:\windows\temp". I want to log; by whom and when it is accessed , some thing new created.

Thanks.

Re: how to watch on a directory

[DK]KiloDunse28-Feb-09 2:31

[DK]KiloDunse

28-Feb-09 2:31

Look in the Filesystemwatcher class.

Programming is like Mathematics… you take ONE step at the time! Wink | ;-)

Logging file access

[DK]KiloDunse28-Feb-09 2:25

[DK]KiloDunse

28-Feb-09 2:25

Hi.

Is there a way to log which process has accessed/changed a file?

I looked at the FileSystemWatcher class, but it dos not tell which process.

Programming is like Mathematics… you take ONE step at the time! Wink | ;-)

Drawing Borders' Corners [SOLVED]

Xmen Real 28-Feb-09 1:31

Xmen Real

28-Feb-09 1:31

I found the solution Wink | ;)

I'm drawing a gradient border for a control, everything is drawn but corners.
Here[^] is the screenshot, I tried to draw on top left corner but its looking odd.

Rectangle topLeftRect = new Rectangle(0, 0, borderThickness, borderThickness);

Rectangle topRect = new Rectangle(borderThickness, 0, this.Width - (borderThickness * 2), borderThickness);
Rectangle botRect = new Rectangle(borderThickness, this.Height - borderThickness - 1, this.Width - (borderThickness * 2), borderThickness);
Rectangle leftRect = new Rectangle(0, borderThickness, borderThickness, this.Height - (borderThickness * 2));
Rectangle rightRect = new Rectangle(this.Width - borderThickness - 1, borderThickness, borderThickness, this.Height - (borderThickness * 2));



e.Graphics.FillRectangle(new LinearGradientBrush(topRect, Color.Transparent, Color.Gray, 90, false), topRect);
e.Graphics.FillRectangle(new LinearGradientBrush(botRect, Color.Transparent, Color.Gray, 270, false), botRect);
e.Graphics.FillRectangle(new LinearGradientBrush(leftRect, Color.Transparent, Color.Gray, 0, false), leftRect);
e.Graphics.FillRectangle(new LinearGradientBrush(rightRect, Color.Transparent, Color.Gray, 180, false), rightRect);

e.Graphics.FillRectangle(new LinearGradientBrush(topLeftRect, Color.Transparent, Color.Gray, 35, false), topLeftRect);

TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can

modified on Saturday, February 28, 2009 7:47 AM

Listview and tooltip popup for each cell?

syntax28uk28-Feb-09 1:30

syntax28uk

28-Feb-09 1:30

Hi All,

I've got a Listview control on a windows forms and it is set to details view, shows full grid lines - so that it looks like a grid. I've three columns in the list view and have 10 rows of data. My problem is, I need a way so that when the user mouse cursor is over a particular cell of data, I want a popup (almost like a tooltip) to be displayed. Once my mouse cursor is removed from over the cell, the popup should automatically close down. Of course, this popup, will have a lot of other prepopulated data within it.

Is this possible with C#, Windows Forms? If so, can you provide some ideas on how I might go about do this? I do see this on some web site, but have never seen this on a windows forms application before.

Many thanks,
Jim

Re: Listview and tooltip popup for each cell?

Xmen Real 28-Feb-09 1:34

Xmen Real

28-Feb-09 1:34

Use ItemMouseHover event of ListView, like this

private void listView1_ItemMouseHover(object sender, ListViewItemMouseHoverEventArgs e)
{
    toolTip1.SetToolTip(listView1, e.Item.Text);
}

or use ToolTipText property of ListViewItem

Re: Listview and tooltip popup for each cell?

syntax28uk28-Feb-09 2:03

syntax28uk

28-Feb-09 2:03

Thank Xmen, but the tooltip will only show or popup when the user cursor is place over the first column in the listview first. What I want is something that will also popup when the user hovers over different columns.

Thanks,
Jim

Re: Listview and tooltip popup for each cell?

DaveyM6928-Feb-09 2:58

DaveyM69

28-Feb-09 2:58

Have a look at this article's[^] meesages, especially the section named Simple Solution.

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)

Desktop Calander [modified]

WinSolution28-Feb-09 1:17

WinSolution

28-Feb-09 1:17

I want to display a calender on desktop [right side] if any one can help me helping link

Please keep following points in mind
- application will be running in background. [at startup]
- icon will be in Tray no tab in Task bar. when double clicked then in Task Bar.

Thanks

modified on Sunday, March 1, 2009 5:16 AM

Re: Desktop Calander

Searril28-Feb-09 4:34

Searril

28-Feb-09 4:34

Install Vista. There's a calendar available by default in the sidebar.

Re: Desktop Calander

Jaiprakash M Bankolli28-Feb-09 6:18

Jaiprakash M Bankolli

28-Feb-09 6:18

Yes, there are gadgets available that you will get it for free in Vista or windows 7.

Thanks

Regards,
Jaiprakash M Bankolli
jaiprakash.bankolli@gmail.com
My Blog
Suggestions for me
Visit:www.OracleQuest.com

Re: Desktop Calander

WinSolution28-Feb-09 6:49

WinSolution

28-Feb-09 6:49

Dear Both

I am going to built a reminder application in which i have to display a calendar on desktop that's why i ask for help

thanks

How To Get Local Printer status

naeemnimi28-Feb-09 1:14

naeemnimi

28-Feb-09 1:14

Hi All,

I want to know how we can get the printer status/state whether it is out of paper, paper jammed etc.

Re: How To Get Local Printer status

Philip.F28-Feb-09 5:44

Philip.F

28-Feb-09 5:44

Maybe this helps:
http://msdn.microsoft.com/en-us/library/aa394363.aspx[^]

Phil

I won’t not use no double negatives.

Taking a Screenshot - but with performance :(

prattel28-Feb-09 0:46

prattel

28-Feb-09 0:46

Hi there,

I'm trying to read a few pixels (200) from my screen, repeatedly. Though what I have found is that
1) the Graphics method CopyFromScreen() has quite a high overhead. Whether I read 1 pixel or 1000 doesn't matter. It's always 33ms, and it doesn't even matter if I keep creating new Bitmap / Graphics objects or reuse the old ones.
2) unmanaged GDI32.BitBlt has exactly the same problem, even if I reuse all hDCs.

So, my question is, is there a fast way to obtain a few pixels from the screen? I already thought about using Direct3d, but I fail using it - and I don't even know if that would perform any better. It keeps throwing a BadImageFormatException at me, and says it's not a Win32 application (Exception from hResult: 0x800700C1). Btw, I don't even want to save to HD. I just want the raw pixels in memory to play around with them. The stuff below was just taken from an example I found.

That's the code I tried to use:

PresentParameters presentParams = new PresentParameters();
presentParams.Windowed = false;
presentParams.SwapEffect = SwapEffect.Discard;
presentParams.PresentFlag = PresentFlag.LockableBackBuffer;
presentParams.BackBufferWidth = 1280;
presentParams.BackBufferHeight = 1024;
presentParams.MultiSample = MultiSampleType.None;
presentParams.DeviceWindowHandle = User32.GetDesktopWindow();

Device device = new Device(0, DeviceType.Hardware, User32.GetDesktopWindow(), CreateFlags.HardwareVertexProcessing, presentParams);
Surface backbuffer = device.GetBackBuffer(0, 0, BackBufferType.Mono);
SurfaceLoader.Save("Screenshot.bmp", ImageFileFormat.Bmp, backbuffer);
backbuffer.Dispose();

Any hints on a quicker way to read a few pixels, all in one horizontal line, would be appreciated Smile | :)

Re: Taking a Screenshot - but with performance :(

PIEBALDconsult28-Feb-09 3:43

PIEBALDconsult

28-Feb-09 3:43

I don't know. You may need a Windows API function.

Re: Taking a Screenshot - but with performance :(

prattel28-Feb-09 3:45

prattel

28-Feb-09 3:45

I did try Windows API. GDI32.BitBlt, which performs just as badly.

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