Multiple thread access to a single remoting object (proxy) - .NET (Core and Framework) Discussion Boards

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Re: image control

Richard Blythe11-Aug-08 19:39

Richard Blythe

11-Aug-08 19:39

In order to have the functionality you want, you will have to write your own drawing code. Oh don't frown like that! The reason is because of the way windows controls behave. They were designed to look after their own paint code and they're definitely not designed for transparent areas. You can simulate transparencies with the Regions class but that option will produce jagged edges. Please don't force your users to put up with objects like that. If you've got some spare time, jump over to an article I've written on GDI+ code:
http://www.codeproject.com/KB/GDI-plus/gdi_plus_code_generator.aspx[^]
Download the source code and look at the structure I've implemented for drawing basic shapes. Use this as a spring board for your graphics code.

Cheers!
Richard

I've used up all my sick days, so today I'm calling in dead.

Re: image control

vikas amin12-Aug-08 12:09

vikas amin

12-Aug-08 12:09

I think rotation is not so simple to be done
you should consider creating one or might be have to buy one

Vikas Amin

My First Article on CP" Virtual Serial Port "[^]

modified on Thursday, July 24, 2008 5:33 PM

E-Mail sending failure

Zafar Sultan9-Aug-08 3:27

Zafar Sultan

9-Aug-08 3:27

I am trying to send a mail on a button click event
code for button click event is

/* using System.Net.Mail; included namespace*/

MailMessage msg = new MailMessage();
SmtpClient SmtpMail = new SmtpClient();

msg.To = "abc@reciever.com";//error 1 and 2 are in this line
msg.From = "xyz@sendername.com";//error 3 is in this line
msg.Subject = "test";
msg.IsBodyHtml = false;
msg.Body = "hi";
SmtpMail.Host = "localhost";
SmtpMail.Send(msg);
msg = null;
Label1.Text = "An Email has been send to " + "abc@reciever.com";

The errors are :
Error 1 Property or indexer 'System.Net.Mail.MailMessage.To' cannot be assigned to -- it is read only

Error 2 Cannot implicitly convert type 'string' to 'System.Net.Mail.MailAddressCollection'

Error 3 Cannot implicitly convert type 'string' to 'System.Net.Mail.MailAddress'

any suggest ion/solution will be highly appreciated

Re: E-Mail sending failure

Wendelius9-Aug-08 6:32

Wendelius

9-Aug-08 6:32

Hi,

To is a collection of MailAddresses and From is type of an MailAddress. For these reasons modify your code like below:

msg.To.Add(new System.Net.Mail.MailAddress("abc@reciever.com"));
msg.From = new System.Net.Mail.MailAddress("xyz@sendername.com");

Mika

Re: E-Mail sending failure

Zafar Sultan11-Aug-08 1:33

Zafar Sultan

11-Aug-08 1:33

Thanks I tried the following

MailMessage msg = new MailMessage();
SmtpClient SmtpMail = new SmtpClient();

msg.To.Add(new System.Net.Mail.MailAddress("abc@gmail.com"));
msg.From = new System.Net.Mail.MailAddress("xyz@rediffmail.com");
msg.Subject = "test";
msg.IsBodyHtml = false;
msg.Body = "hi ,how are you";
SmtpMail.Host = "localhost";
SmtpMail.Send(msg);
msg = null;
Label1.Text = "An Email has been send to " + "abc@reciever.com";

error:

Mailbox unavailable. The server response was: 5.7.1 Unable to relay for abc@gmail.com

now where is the problem?Please help me out...

One more thing In my last question even if there were errors but amazingly an email was sent to my inbox!!!!! What's going on?

Re: E-Mail sending failure

Wendelius11-Aug-08 6:01

Wendelius

11-Aug-08 6:01

If you are using localhost as a mail server, make sure that SMTP server is running on IIS on localhost and that it's properly configured. To get a starting point on this, go through this document:

XCON: How to Configure the IIS SMTP Service to Relay SMTP Mail[^]

Mika

Re: E-Mail sending failure

adityapatel70717-Feb-11 6:41

adityapatel707

17-Feb-11 6:41

I had same problem, try msg.To.Add(new System.Net.Mail.MailAdress("sendtoemail") this works for me.

Multiple thread access to a single remoting object (proxy)

liRetro8-Aug-08 8:27

liRetro

8-Aug-08 8:27

Hi, I'm writing a web service that talks to a windows service via remoting. The windows service is configured to remote the object as a singleton. Since multiple web service threads can be spawned by multiple client requests the Remoted object has been written to b thread safe, but what about the web service (client) proxy to the remoted object?

Worded another way - I have multiple threads firing methods on a single remoting proxy that is connecting to a singleton object. Will there be any problems with the proxy itself?

Here's some psuedo code:

static RemoteObject remObject; <-- globally stored

main()
{
   remObject = GetRemoteConnection(); <-- obtain connection
   ...
   // Create some threads
   ...
   DoSomethingThread1.start();
   DoSomethingThread2.start();
}

static void DoSomething()
{
  remObject.DoSomething(); <-- Will get called by two threads at virtually the same time. 
}

Thanks in advance for any insights.

Assert(this);

Re: Multiple thread access to a single remoting object (proxy)

liRetro18-Aug-08 7:09

liRetro

18-Aug-08 7:09

I answered this question myself. I could not find the information in the MSDN, so I made a test app. that connected to the service. The connections were done from 256 threads that then proceeded to make 50,000 calls at the same time. The server registered these calls and marked the begin and end of each call along with the thread ID. The trace log indicated multiple calls were being executed at the same time with no problems.

So the answer seems to be that he remoting proxy is thread safe, and will make multiple calls per connection instance instead of sequencing the calls over one connection. The only other thing I need to do is sniff the wire to see if multiple connections are being made, or if they are getting to the server over one connection.

BTW: Anyone know if after a remoting call over a TCP channel if the TCP connection is dropped, or does it stay connected for the life of the proxy?

Assert(this);

Winapp Webapp common library

k6668-Aug-08 5:44

k666

8-Aug-08 5:44

I do a development of applications that have both a Web site component and Windows support applications. I would like have a library that is common between the two. Many of the routines handle mapping between the UI and the data objects. Since the UI are rooted in System.Web or System.Forms, I am looking for a way to seamlessly (as possible) abstract out this mapping layer.

In pariculiar I am struggling with loading/saving lists from the combo boxes, list boxes etc.

What I am thinking of doing is having 3 libraries.
1) MappingLayer that has the abstractions
2) WebMappingLayer that has the implementations for Web UI
3) WinMappingLayer that has the implementations for the Windows UI

Is there a better way of doing this?

SplitButton not available

kildareflare7-Aug-08 23:09

kildareflare

7-Aug-08 23:09

Hello

I am using VS2008 and C#.

I wanted to add a split button to my form but could not find one in my toolbox. So, I set about writing my own with help from various articles on the web. When it came to adding my new control to the toolbox I discovered the "Choose Items" option on the toolbox and that there was already a split button control available:

<br />
namespace Microsoft.Office.Tools.Ribbon (version 9.0.0.0)<br />

However, while it is selected, it is still not available in the toolbox.

I am going to continue developing my own control as a learning experience however im confused as to why this control is not available.

Any ideas?

Rich

Re: SplitButton not available

led mike8-Aug-08 5:18

led mike

8-Aug-08 5:18

Well I didn't know anything about it when I read your post but a quick glance at the documentation [^]and this jumped out.
The Microsoft.Office.Tools.Ribbon namespace contains components, controls, and supporting collections, classes, and enumerations that enable you to customize the Ribbon in the user interface (UI) of several Microsoft Office applications.
All of the controls in the Microsoft.Office.Tools.Ribbon namespace can be added to your Office customization by dragging them from the Office Ribbon Controls tab of the ToolBox onto the Ribbon Designer.

I know it's popular these days to do software development without reading documentation but I still think all it does is waste a lot of time.

led mike

Video Creator

krutishukla7-Aug-08 17:57

krutishukla

7-Aug-08 17:57

HI,

I want to make an application which is creating video using its own intelligence.

Explaination:
User will provide number of images,text,audio sound, In short all the multimedia options as well as user will select the size of resulted video along with the type of the resulted video extention(.mov, .avi etc).
Now the aplication will be selecting all the inputed resources and will create video ,which will be of specified size and having extention as per the users requirement.

I'm confused that where do i start from and where can i find API which will help me going ahead.

I need the API in .net-c#.

Please help me out ASAP.

Thanks in Advance....

Re: Video Creator

led mike8-Aug-08 5:12

led mike

8-Aug-08 5:12

krutishukla wrote:
I'm confused that where do i start

I started in a university course titled "Programming Logic and Design". No programming languages were involved.

krutishukla wrote:
from and where can i find API

For development on the Windows platform the MSDN web site has the API documentation. I search it with Google using "MSDN" as the first keyword.

led mike

Re: Video Creator

Thomas Stockwell11-Aug-08 1:39

Thomas Stockwell

11-Aug-08 1:39

For API, I would look into DirectX. WPF may have limited capabilities with regards to video editing. I have seen demonstrations of WPF where 'adornments' were added at specific times in the video.

Regards,
Thomas Stockwell

Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.

Visit my Blog

Any way to force a TCP connection to reset

supercat97-Aug-08 8:36

supercat9

7-Aug-08 8:36

I am trying to write software to communicate with some wireless LAN modules. Periodically, the device using the LAN module will power it up. It will then open a TCP connection to a server at a fixed IP address and port. Unfortunately, the WLAN module seems to pick the same source port number most of the time when it powers up.

Under Windows 2000, if the WLAN module picks a port number YYYY that was used in an earlier connection, the packet sequence will be:

; End of previous connection
  module.YYYY -> server.XXXX FIN+ACK
  server.XXXX -> module.YYYY FIN+ACK
  module.YYYY -> server.XXXX ACK
  server.XXXX -> module.YYYY ACK
; Attempted new connection (PC doesn't know module got its ack)
  module.YYYY -> server.XXXX SYN
  server.XXXX -> module.YYYY ACK     ; Not SYN ack, but rather a repeat of the previous ACK
  module.YYYY -> server.XXXX RST+ACK ; Kill off old connection
  module.YYYY -> server.XXXX SYN
  server.XXXX -> module.YYYY SYN+ACK  ; New connection is now happy

Windows XP no longer sends the ACK after the SYN; the module will thus keep trying SYN packets until it times out. This causes many connections to fail. Is there any way using .net under XP to force the PC to reset a connection?

Ideally, the WLAN module would simply pick different port numbers on each connection attempt, avoiding the problem altogether. Unfortunately, I have no control over the firmware for that thing.

How to include analog clock in GUI(Visual studio.Net 2003)

M usman Saleem6-Aug-08 17:13

M usman Saleem

6-Aug-08 17:13

Hey friend!
I am working on Library Management System and i want to include analog clock in my main window. Please help me in this situation.
Waiting for your favour...

Re: How to include analog clock in GUI(Visual studio.Net 2003)

AhsanS7-Aug-08 1:05

AhsanS

7-Aug-08 1:05

Y not Digital Clock?

Ahsan Ullah
Senior Software Engineer

Re: How to include analog clock in GUI(Visual studio.Net 2003)

Thomas Stockwell7-Aug-08 1:36

Thomas Stockwell

7-Aug-08 1:36

You would have to create a usercontrol or find one that has the functionality that you want.

Re: How to include analog clock in GUI(Visual studio.Net 2003)

SomeGuyThatIsMe7-Aug-08 5:16

SomeGuyThatIsMe

7-Aug-08 5:16

i dont think your monitor would like it much if you tried to shove an analog clock in there...your users might not appreciate it much either.

there are several free controls out there that appear like analog clocks, or other kinds. i remember seeing one in the articles section hear a couple years back. a google search for analog clock control brought back 719k results the first 2 were at cp.

Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

Re: How to include analog clock in GUI(Visual studio.Net 2003)

Zafar Sultan9-Aug-08 3:20

Zafar Sultan

9-Aug-08 3:20

If you like i can provide you a javascript which will show a digital clock on your page with per second change with AM/PM.For digits images are used.If you think it will help you give your e-mail id i will send you the script

What is the correct way?

pijush dubey6-Aug-08 1:41

pijush dubey

6-Aug-08 1:41

I am relatively new to programming in .net.I want to know that what is the correct way of creating an application in .net

1) create a new website on file system and do the further programming etc. without creating a virtual directory

or

2) create a new website on file system, then opening IIS and creating a virtual directory

Now the doubt is after creating a virtual directory i should open my website from file system for coding or i should open it from selecting it from local IIS (which option from open website dialog box)

can anyone please guide me how to get started with my first website in .net????

Re: What is the correct way?

Thomas Stockwell6-Aug-08 4:43

Thomas Stockwell

6-Aug-08 4:43

It depends on the type of site that you are trying to create. If possible I would first suggest Microsoft Expression Web.

Re: What is the correct way?

led mike6-Aug-08 5:34

led mike

6-Aug-08 5:34

You might get more eyes on this question if you post it in the ASP.NET forum

led mike

Re: What is the correct way?

Wael Al Wirr16-Nov-08 2:24

Wael Al Wirr

16-Nov-08 2:24

Hi there !!
it does not matter, visual studio creates a virtual Web server during the debuging stage.

you can start by creating the web site on the file system later on you can deploy the website on the IIS

WaelA
Senior Software Engineer
abu_wer@hotmail.com

Last Visit: 31-Dec-99 18:00 Last Update: 30-Sep-24 14:29

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