WCF Services in a multi threaded application results in Oracle Connection request Timed out error - C# Discussion Boards

Re: develop code project functionality(view forums/questions) in codeproject like steps View

11-Dec-12 20:37

But what code do you already have in place? And as a hint - CodeProject expands things at the client side, so it uses JavaScript not C# to do this.

*pre-emptive celebratory nipple tassle jiggle* - Sean Ewington

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

Jay Nardev12-Dec-12 21:43

Jay Nardev

12-Dec-12 21:43

Please check below link.
<a href="http://api.jquery.com/toggle/">http://api.jquery.com/toggle/</a>[<a href="http://api.jquery.com/toggle/" target="_blank" title="New Window">^</a>]

This will help you to implement at client side.

Re: develop code project functionality(view forums/questions) in codeproject like steps View

Firoz(Pappu)12-Dec-12 22:17

Firoz(Pappu)

12-Dec-12 22:17

Thanks

C# javascript communication

tashee11-Dec-12 2:12

tashee

11-Dec-12 2:12

hello,

I am creating a data visualization tool using C# and Javascript. I have embedded a webbrowser control in a C# winform application and have written a javascript code for it.
My problem is i need to pass a value from javascript to C#. I am successfully able to pass value from C# to Javascript but not vice-versa.
my javascript code is

google.maps.event.addListener(marker, 'dragend', function(ev){
var newpos= marker.getPosition();
});

i want to pass value of newpos to C# so that i can use it for further computation

please help me for this.

Re: C# javascript communication

V.11-Dec-12 3:40

11-Dec-12 3:40

yes, it can be a bitch. What you can do is add a server control (label, textbox, ...) and hide it. You can assign a clientid to that control. That client id is known by javascript. In fact, you can just assign it a server id and load the page. If you search the control in your webpage source you'll find that .net created a client id for you (mostly the server id with an autogenerated suffix like c001 or something).

hope this helps.

V.

(MQOTD Rules and previous Solutions )

WCF Services in a multi threaded application results in Oracle Connection request Timed out error

rajaron11-Dec-12 0:16

rajaron

11-Dec-12 0:16

I am using WCF services with Thread Pool concepts in the application using Oracle Database. The application has a Scheduling Workflow, where there will be multiple Jobs scheduled at the same time. The expected behavior is that, once the scheduler is triggered, all the jobs should be started parallel and at the background, various process are run.

All the jobs are not started in parallel. Say for example, if there are 20 jobs scheduled, only 15 are getting started and remaining are struck.

It results in Oracle Connection request timed out error.

Options Tried:

As the application uses PerSession and Concurrency mode as Multiple. Tried this could have been a WCF Throttling issues. So modified the Throttling parameters as well. But still results in Oracle error.

Any help would be appreciated.

image from access database in c#

kojoam110-Dec-12 4:10

kojoam1

10-Dec-12 4:10

pls help wiht this code

int intOrder = int.Parse(frmInput.InvoiceOrder);
byte[] photo_aray;
OleDbDataAdapter adapter = new OleDbDataAdapter("select photo from cards where id= " + intOrder, strCon);
DataSet ds = new DataSet();
adapter.Fill(ds, "cards");
// ds.Tables[0].Constraints.Add("pk_sno", ds.Tables[0].Columns[0], true);

picBox1.Image = null;
if (ds.Tables[0].Rows[rno][6] != System.DBNull.Value)
{
photo_aray = (byte[])ds.Tables[0].Rows[rno][6];
MemoryStream ms = new MemoryStream(photo_aray);
picBox1.Image = Image.FromStream(ms);
}

}

image not showing in picbox

Richard MacCutchan10-Dec-12 21:29

Richard MacCutchan

10-Dec-12 21:29

Have you used your debugger to step through this code and check that all your variables are correctly loaded with the information that you have in the database, and that the picturebox image is a real image?

One of these days I'm going to think of a really clever signature.

Pete O'Hanlon10-Dec-12 22:15

10-Dec-12 22:15

Richard MacCutchan wrote:
Have you used your debugger

Oh you and your hilarious one liners.

*pre-emptive celebratory nipple tassle jiggle* - Sean Ewington

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

Richard MacCutchan10-Dec-12 22:40

Richard MacCutchan

10-Dec-12 22:40

One of these days I'm going to think of a really clever signature.

Pete O'Hanlon11-Dec-12 0:08

11-Dec-12 0:08

Richard's right. Add a breakpoint on the if statement. To do this, you can click on the line and press F9 (this is the shortcut to toggle the breakpoint on and off). You should see a red dot appear in the gutter in Visual Studio. Press F5 to run your application. When you hit the if statement, press F10 to step over the code. If you do this you will find out if this value is null or not.

Now, one thing I would do is wrap the MemoryStream in a using statement. A MemoryStream is a disposable object, so you should always dispose of it. This would give you:

using (MemoryStream ms = new MemoryStream(photo_array))
{
  picBox1.Image = Image.FromStream(ms);
}

Your code will now dispose of the stream.

*pre-emptive celebratory nipple tassle jiggle* - Sean Ewington

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

save bitmap in C#

gibsray10-Dec-12 0:55

gibsray

10-Dec-12 0:55

Hi I want to load a bitmap do some changes on the pixels and save it as new bitmap with a new name.
Will it work if I'll use the save method of the bitmap class (I'll give it as a parameter the path with the name "C:\\NewBitmap.bmp" for example, or is there another method for doing it?

thanks.

Re: save bitmap in C#

Pete O'Hanlon10-Dec-12 1:14

10-Dec-12 1:14

gibsray wrote:
Will it work if I'll use the save method of the bitmap class

I can't see why not.

*pre-emptive celebratory nipple tassle jiggle* - Sean Ewington

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

Re: save bitmap in C#

OriginalGriff10-Dec-12 1:26

OriginalGriff

10-Dec-12 1:26

Yes - the Save method is the one to use.
Two things to note though:
1) Don't try to save it to the root directory - Vista and above won't let you write to the root of the boot drive to help prevent virus and trojan attacks - use a different directory unless you app has admin privileges.
2) Be careful what format you save the image in: many types including JPG are lossy compression, so each time you save and open it you will get a fuzzier, less detailed image. Use BMP or similar for working images, and JPG for final presentation only.

If you get an email telling you that you can catch Swine Flu from tinned pork then just delete it. It's Spam.

Half Blood Prince9-Dec-12 22:32

Half Blood Prince

9-Dec-12 22:32

I can not icon & background in form design .... Mad | :mad:

Half Blood

J4amieC9-Dec-12 23:03

J4amieC

9-Dec-12 23:03

Fascinating. Thanks for sharing.

Keith Barrow9-Dec-12 23:35

Keith Barrow

9-Dec-12 23:35

That's bad news.
Perhaps if you shared what you've done, with relevant source code on, say, a site targeted at c# developers, they'd be able to help you $Shucks | :-\$

Sort of a cross between Lawrence of Arabia and Dilbert.[^]
-Or-
A Dead ringer for Kate Winslett[^]

Dave Kreskowiak10-Dec-12 2:19

Dave Kreskowiak

10-Dec-12 2:19

The quality of the question you ask directly dictates the quality of the answer you get.

Your question was so bad that the only possible answers were sarcasm. in other words, your question was nothing but a jumble of random words.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak