Windows Forms Discussion Boards

Luc Pattyn8-Jun-08 14:18

8-Jun-08 14:18

Hi,

for displaying log information I prefer a ListBox over a TextBox.
For one, it is much faster, since it keeps all the text lines apart, it never needs
them all concatenated.
Furthermore, it has a TopIndex property, which determines the scroll state.

So a typical log method would consist of:

void log(string s) {
    lb.Items.Add(s);
    lb.TopIndex=lb.Items.Count-1;
}

Luc Pattyn [Forum Guidelines] [My Articles]

Voting for dummies? No thanks. Dead | X|

Re: Maintain Textbox Scroll Position

K.L.K9-Jun-08 8:55

K.L.K

9-Jun-08 8:55

Thanks luc, this worked perfectly.

madness ? this.isSparta = true : this.isSparta = false;

Re: Maintain Textbox Scroll Position

Luc Pattyn9-Jun-08 13:06

Luc Pattyn

9-Jun-08 13:06

You're welcome.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

Voting for dummies? No thanks. Dead | X|

[Message Deleted]

AliN13626-Jun-08 5:38

AliN1362

6-Jun-08 5:38

[Message Deleted]

Re: Collision Detection

Christian Graus6-Jun-08 6:14

Christian Graus

6-Jun-08 6:14

I have an article on per pixel collision detection here on CP. My solution is not very fast tho, it probably needs to be reconsidered.

The simplest thing to do is to work out the smallest square each shape occupies and work out if any squares intersect. How well that works, depends on your polygons.

Christian Graus

Please read this if you don't understand the answer I've given you

"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: Collision Detection

AliN13626-Jun-08 8:43

AliN1362

6-Jun-08 8:43

Thanks a lot! I am going to read your article!

Databind adding error

N a v a n e e t h5-Jun-08 23:59

N a v a n e e t h

5-Jun-08 23:59

I am trying add databinding to one of my textbox. When I click on "Text" under "DataBindings" section in the property grid, I get an error says "Object reference not set". Any idea to solve this ? I have tested it with another project and it works correctly. Any ideas ?

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

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Re: Databind adding error

John_Adams8-Jun-08 22:44

John_Adams

8-Jun-08 22:44

Hi,

There are several reasons which can cause this error, few of them are:

1) Some classes have constructors; therefore you need to properly instantiate it.
2) Bad scoping.
3) MAKE SURE that you've explicitly declared the variable, and don't forget to use the appropriate scope.

Since you are not getting the same error in another project therefore, I try to match the property settings of both project and manipulate them to see if this helps.

Hope this helps.

Have a nice day.

Regards,
John Adams
ComponentOne LLC

Re: Databind adding error

N a v a n e e t h8-Jun-08 23:29

N a v a n e e t h

8-Jun-08 23:29

I know when this error occurs and I could have corrected it if it was my code. But this is happening with VS2005. As you said, some properties will be invalid. Thanks anyway

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

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How to enable only vertical scrollbar in panel?

cocoonwls5-Jun-08 23:37

cocoonwls

5-Jun-08 23:37

Hi all,

Currently i am using the autoscroll properties to enable scrollbar, but it will enable both of the vertical and horizontal scrollbar.So, i would like to know how can i enable only vertical scrollbar in panel?

regards
cocoonwls

Re: How to enable only vertical scrollbar in panel?

John_Adams6-Jun-08 4:50

John_Adams

6-Jun-08 4:50

Hi,

Please take to through the following article.
http://www.codeproject.com/KB/miscctrl/CustomAutoScrollPanel.aspx[^]

This article show how to customize a System.Windows.Forms.Panel to use effectively scrollbars with the AutoScroll property. In this example, you can change enable or visible property of each scrollbar of the panel, receive scrolling events, send events to the panel and change and receive the positions of both scrollbars.

Hope this helps Smile | :)

Regards,
John Adams
ComponentOne LLC

Deployment for windows Project

vishnukamath5-Jun-08 20:57

vishnukamath

5-Jun-08 20:57

I'm strucking with this form last 3 weeks ,and i'm working on windows Project,

my project setup (the user has no .net frame work ,sql server etc..,we have to put exe files along with our project ,How can I do this,I'm sending my steup fail Error details also) , and we are using C# 2008 Express Edition,
if u know this please,please help me.

--------------------------------------------------------------------
erro Details:
Error: 1 Cannot publish because a project failed to build. 1 1 setuptesting
Error 2: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'WindowsInstaller3_1\WindowsInstaller-KB893803-v2-x86.exe' in item 'Windows Installer 3.1' can not be located on disk. See Help for more information. setuptesting
Error 3 : The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\aspnet.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 4: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\aspnet_64.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 5: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\clr.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 6: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\clr_64.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 7: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\crt.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 8: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\crt_64.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 9: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\dw.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 10: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\dw_64.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 11: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\netfx20a_x64.msi' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 12: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\netfx20a_x86.msi' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 13: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\netfx_ca.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 14: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\netfx_core.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 15: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\netfx_core_64.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 16: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\netfx_other.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 17: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\netfx_other_64.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 18: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\prexp.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 19: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\winforms.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 20: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX20\winforms_64.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 21: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\x86\msxml6.msi' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 22: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\x64\msxml6.msi' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 23: The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\NetFX30a_x64.msi' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 24 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\NetFX30a_x86.msi' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 25 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\RGB9RAST_x64.msi' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 26 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\RGB9RAST_x86.msi' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 27 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WCF.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 28 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WCF_64.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 29 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WCS.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 30 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WCS_64.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 31 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WF.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 32 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WF_32.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 33 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WF_64.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 34 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WIC_x64_enu.exe' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 35 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WIC_x86_enu.exe' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 36 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WPF1.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 37 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WPF1_64.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 38 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WPF2.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 39 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WPF2_32.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 40 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WPF2_64.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 41 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WPF_Other.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 42 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WPF_Other_32.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 43 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\WPF_Other_64.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 44 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\XPS.msp' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 45 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\XPSEPSC-x86-en-US.exe' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 46 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX30\XPSEPSC-amd64-en-US.exe' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 47 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX35\x86\netfx35_x86.exe' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 48 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFX35\x64\netfx35_x64.exe' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 49 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetMSP\x86\NetFX2.0-KB110806-v6000-x86.msu' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 50 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetMSP\x86\NetFX2.0-KB936704-v6000-x86_RTM_en.msu' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 51 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetMSP\x86\NetFX3.0-KB929300-v6000-x86.msu' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 52 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetMSP\x86\NetFX3.0-KB936705-v6000-x86_RTM_en.msu' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 53 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetMSP\x64\NetFX2.0-KB110806-v6000-x64.msu' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 54 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetMSP\x64\NetFX2.0-KB936704-v6000-x64_RTM_en.msu' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 55 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetMSP\x64\NetFX3.0-KB929300-v6000-x64.msu' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 56 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetMSP\x64\NetFX3.0-KB936705-v6000-x64_RTM_en.msu' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 57 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35\dotNetFx35setup.exe' in item '.NET Framework 3.5' can not be located on disk. See Help for more information. setuptesting
Error 58 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'SqlExpress\sqlexpr32.exe' in item 'SQL Server 2005 Express Edition SP2 (x86)' can not be located on disk. See Help for more information. setuptesting

Re: Deployment for windows Project

Sam Xavier13-Jun-08 10:34

Sam Xavier

13-Jun-08 10:34

Try creating a new setup project because the SDK seems not to be included....

Best Regards,
Sam Xavier
www.componentone.com

Error while reading Outlook files in Windows Application Using VB.NET

shalinidubai4-Jun-08 20:48

shalinidubai

4-Jun-08 20:48

Dear All,

In My project one of the task is to read Outlook mail saved in localfolder.let say as it saved as " C:\\Test.EML " . I need to upload this mail display it in any manner.
i have tried the same with web application using C# with ASPOSE.DLL ,but the same thing is not Working in Windows application.
Please give me some suggestions or idea to open this email from local disk.

Thanks and Regards

Shalu

Prolem in ColoPicker conrtol

Revathij4-Jun-08 19:12

Revathij

4-Jun-08 19:12

I had used UltraColorPicker control to show the color in a column in listview. But while selecting the color it is showing some relevant numbers instead of color name for few colours in Custom tab. Did i miss any settings here..... ? Any one help me....

Thanks in advance

Re: Prolem in ColoPicker conrtol

Christian Graus5-Jun-08 4:55

Christian Graus

5-Jun-08 4:55

What is ultracolorpicker ? I have no idea. I'm sure many others do not either. So, how can we help you ? Do the ultracolorpicker people not have a website ?

Sine Wave using GDI+

vinay_K4-Jun-08 2:56

vinay_K

4-Jun-08 2:56

Hi..

I Need to Draw a sine wave on the Form, based on the X and Y values. I have stored those values in List variable..

How can i draw a continuous sine wave using GDI+ using C#

Re: Sine Wave using GDI+

Mike Dimmick4-Jun-08 5:21

Mike Dimmick

4-Jun-08 5:21

Best bet is probably Graphics.DrawLines to draw straight-line segments between the points.

DoEvents: Generating unexpected recursion since 1991

Re: Sine Wave using GDI+

Brady Kelly4-Jun-08 6:06

Brady Kelly

4-Jun-08 6:06

But sin isn't a function of x and y Confused | :confused:

Semicolons: The number one seller of ostomy bags world wide. - dan neely

Re: Sine Wave using GDI+

MarkB7775-Jun-08 22:15

MarkB777

5-Jun-08 22:15

I think he means f[t] vs t... Smile | :)

Mark Brock

Click here to view my blog

Re: Sine Wave using GDI+ [modified]

Kristian Sixhøj4-Jun-08 23:59

Kristian Sixhøj

4-Jun-08 23:59

Please don't cross post.

Kristian Sixhoej

"Failure is not an option" - Gene Kranz

modified on Saturday, June 7, 2008 12:34 PM

Re: Sine Wave using GDI+

MarkB7775-Jun-08 22:16

MarkB777

5-Jun-08 22:16

Just use the Graphics class to draw lines between the points (like someone suggested below).

Cheers,

Mark Brock

Click here to view my blog

Brightness,Color,contrast

balaji_vbr4-Jun-08 0:47

balaji_vbr

4-Jun-08 0:47

how can i adjust the brightness or contrast or color while capturing live video using webcam in windows application.

Re: Brightness,Color,contrast

Ashfield4-Jun-08 1:37

Ashfield

4-Jun-08 1:37

Please do not duplicate post. If nobody has replied its either because they are busy or they don't know.

Bob
Ashfield Consultants Ltd

how to use brightness,color & how to use related APIs in video

balaji_vbr3-Jun-08 23:49

balaji_vbr

3-Jun-08 23:49

Dear sir ,

i am developing videoemail Application .
in this we record the our video after that we can save it or we can email it.
in this my requirement is to increase the brightness,color,sharpness etc while recording the video.
for eg: in yahoo messenger we are chatting with other person with webcam.
in this if i want to increase my video color,brightness etc.. i can do it by using the camseetings in the
preferences of the mywebcam.

requirment: for this we need some APIs

in myproject my reqirement is also same.
please give me the code n APIs, which are useful to set my videosettings (increase or decrease the brightnss,color etc..)

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