Re: Various Tools into Code. - C# Discussion Boards

Re: Keyboard is not working (such as page down)

8-Dec-08 21:07

If you have a scroll bar and the control has focus, then it will either just work ( which would have been my guess ), or you need to write code to handle it ( which seems odd to me, but if it doesn't work at all, that's probably the solution ).

Does the control have focus when you press the keys ?

Christian Graus

Driven to the arms of OSX by Vista.

Ronenb8-Dec-08 21:42

Ronenb

8-Dec-08 21:42

Yes,
Itry to use it option
at the panel_paint func
I write
if(panel1.CanFocus)
{
panel1.Focus();
}

and it still doesn't work
Ronen

How to check Validity of a COM Object

KarthikonIT8-Dec-08 19:53

KarthikonIT

8-Dec-08 19:53

Hi,
I was trying to Automate MS Excel, I want to check the validity of a COM Object in C#. For Instance, after releasing a sheet Object using "Marshal.ReleaseComObject(m_oSheets)" Sheet object is not equal to null. How to check a COM Object is valid or not.
Thanks in Advance.

Excel._Application m_oApplication;
Excel.Workbooks m_oWorkBooks;
Excel._Workbook m_oWorkBook;
Excel.Sheets m_oSheets;
Excel._Worksheet m_oWorkSheet;

Marshal.ReleaseComObject(m_oSheets);
if (m_oSheets == null)
{
......
}

Re: How to check Validity of a COM Object

Christian Graus8-Dec-08 20:08

Re: How to check Validity of a COM Object

8-Dec-08 20:08

KarthikonIT wrote:
after releasing a sheet Object using "Marshal.ReleaseComObject(m_oSheets)" Sheet object is not equal to null.

Do the docs say it will be null, or is it your job to set it ?

Christian Graus

Driven to the arms of OSX by Vista.

KarthikonIT9-Dec-08 0:11

KarthikonIT

9-Dec-08 0:11

Docs says it will be null for C# Object but it is not null even after releasing the Excel Object with the following code "Marshal.ReleaseComObject(m_oSheets)". I don't want to set it to null. My question is "How do i know the particular Excel Object is valid or not".
Thanks for response

[Message Deleted]

jnwel8-Dec-08 19:41

jnwel

8-Dec-08 19:41

[Message Deleted]

Re: Various Tools into Code.

Christian Graus8-Dec-08 20:07

Re: Various Tools into Code.

8-Dec-08 20:07

You can write a program that launches other programs, to embed those programs in your app is possible, but hacky and unreliable. I would not try it.

Christian Graus

Driven to the arms of OSX by Vista.

jnwel8-Dec-08 20:21

jnwel

8-Dec-08 20:21

I guess the simplest way to put it is that I need to figure out how to launch those programs. I've heard of images being able to be shown in pictureboxes...but I really will only have one image. All of the others are going to be some sort of application. How do I make it so when a button is clicked, the application will open. It doesn't have to open within the program though. Also, I'm going to be handing the program out on cds and I need to make sure there will be a way for the program to find the applications on the computer it is in. I'm thinking this can be done by just saving the application onto the cd as well.

Re: Various Tools into Code.

Christian Graus8-Dec-08 21:08

Content type for a video file

8-Dec-08 21:08

jnwel wrote:
How do I make it so when a button is clicked, the application will open.

Process.Start(@"path to application");

Yes, you need to know the full path, or just give a filename if the exes are in the same folder as your exe.

Christian Graus

Driven to the arms of OSX by Vista.

George_George8-Dec-08 18:58

George_George

8-Dec-08 18:58

Hello everyone,

Any idea about how to get the content-type for a video file? I am writing an ASP.Net application which writes video binary content back to browser client to invoke related media player, and needs to fill-in the content-type field of response header.

thanks in advance,
George

Christian Graus8-Dec-08 19:40

8-Dec-08 19:40

You've been here long enough to know where the ASP.NET forum is. There's also tons of websites that list all the known content types. If you're asking how to know what the type is, the file extension is your best bet.

Christian Graus

Driven to the arms of OSX by Vista.

George_George8-Dec-08 20:28

George_George

8-Dec-08 20:28

So sorry, Christian! Smile | :)

Forget that forum, moving there.

regards,
George

N a v a n e e t h8-Dec-08 19:55

N a v a n e e t h

8-Dec-08 19:55

George_George wrote:
which writes video binary content back to browser client to invoke related media player

This is determined by the browser and not your ASP.NET application. ASP.NET can't invoke related media player on a client machine.

As CG said, this is wrong forum.

Navaneeth

How to use google | Ask smart questions

how to implement Keybord shortcuts in a C# window application

George_George8-Dec-08 20:28

George_George

8-Dec-08 20:28

Thanks Navaneeth,

I will move to ASP.Net forum, let us move there.

regards,
George

TJS4u8-Dec-08 18:14

TJS4u

8-Dec-08 18:14

hello all,

i have a c# window application form in which i have made options through the menustrip like file---> Open-----> New----> EXIT .... etc

here i have written the code this.close() for EXIT. and if i run the application and click the EXIT it will close the application
Now i want the same thing to be occured if i press ctrl+x through the Keybord.

How to code this in c#.

Thanks & Regards
TJS

Re: how to implement Keybord shortcuts in a C# window application

Giorgi Dalakishvili8-Dec-08 19:21

Re: how to implement Keybord shortcuts in a C# window application

8-Dec-08 19:21

As far as I know you can set the shortcut from the properties window in visual studio.

TJS4u8-Dec-08 19:27

TJS4u

8-Dec-08 19:27

hello Giorgi Dalakishvili,

Thanks a lot

TJS

Re: how to implement Keybord shortcuts in a C# window application

Giorgi Dalakishvili8-Dec-08 19:30

Re: how to implement Keybord shortcuts in a C# window application

8-Dec-08 19:30

You are welcome Smile | :)

Giorgi Dalakishvili

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Seraph_summer8-Dec-08 23:53

Seraph_summer

8-Dec-08 23:53

you can also use keydown envent

Re: how to implement Keybord shortcuts in a C# window application

Giorgi Dalakishvili8-Dec-08 23:55

Should side-effect free function using Properties?

8-Dec-08 23:55

Why complicate things that Framework can handle itself?

Giorgi Dalakishvili

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calendarw8-Dec-08 17:58

calendarw

8-Dec-08 17:58

Any recommendation for this?

Re: Should side-effect free function using Properties?

Vikram A Punathambekar8-Dec-08 18:57

Vikram A Punathambekar

8-Dec-08 18:57

If a method has no side effects, and fetches something in a fairly straightforward manner (it shouldn't read a database or something), yes, consider using a property instead.

Cheers,
Vıkram.

Stand up to be seen. Speak up to be heard. Shut up to be appreciated.

Cant see output to Event log with log4net EventLogAppender.

Chintan.Desai8-Dec-08 17:25

Chintan.Desai

8-Dec-08 17:25

Hi Guys,

I want to write to event log with log4net eventlogappender, but could not get the output in event log. Below is my code snippets

<code>Creating root</code>
Hierarchy root=(Hierarchy) log4net.LogManager.CreateRepository("trial");
			root.Configured=true;
			root.Root.Level=log4net.Core.Level.Warn;
			log4net.ILog log=log4net.LogManager.GetLogger("trial",root.Name);
			log4net.Repository.Hierarchy.Logger loggerRepo=(log4net.Repository.Hierarchy.Logger)log.Logger;
			
			<code>create layout</code>
			log4net.Layout.PatternLayout objPatterLayout=new log4net.Layout.PatternLayout("Date:%d,Thread:[%t]");
			

			<code>add appender to root after setting its properties</code>
			EventLogAppender appenderEventLog=new EventLogAppender();
			appenderEventLog.MachineName=".";//local machine.
			appenderEventLog.LogName="System";
			appenderEventLog.ApplicationName="trial apps";
					          appenderEventLog.Layout=objPatterLayout;
			appenderEventLog.ActivateOptions();
			
			loggerRepo.AddAppender(appenderEventLog);


			//try to log
			log4net.ILog log2=log4net.LogManager.GetLogger("trial",typeof(Form1).Name);
			if(log2.IsErrorEnabled)
				log2.Error("Error from trial apps");
			if(log2.IsInfoEnabled)
				log2.Warn("info from trial apps");

I use to get IsErrorEnabled as true, but cant see the output. I think I am missing Source, but there is no property to set the source.

Pls let me know, if I miss any properties.

thanx in advance.

Thanks,
Chintan(India)

Re: Cant see output to Event log with log4net EventLogAppender.

Giorgi Dalakishvili8-Dec-08 19:22