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wrong forum Luc Pattyn2-Jun-10 4:38 Luc Pattyn 2-Jun-10 4:38  That is a Java question; launching an app does not depend on the language of the callee. All it takes is to use Google and find some documentation[^]. Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] I only read formatted code with indentation, so please use PRE tags for code snippets. I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page). Status strip overlaps text box. False Chicken2-Jun-10 3:33 False Chicken 2-Jun-10 3:33  I am working on a text editor application and I would like a status strip on the bottom of the window but I cannot see the last line of the text box because the strip overlaps it. And if I set the docking of the text box to top I can set the size so it will not overlap but then it will not stretch vertical with the window. How can I set the text box to stretch with the window but not overlap the status strip? Y*Live Long And Prosper*Y Re: Status strip overlaps text box. TimSWatson2-Jun-10 3:41 TimSWatson 2-Jun-10 3:41  Set dock to fill on the textbox and then right click the textbox control and click bring to front. Re: Status strip overlaps text box. False Chicken2-Jun-10 4:10 False Chicken 2-Jun-10 4:10  Ahhhh. Thanks! Y*Live Long And Prosper*Y Is This Method Thread Safe ? X20402-Jun-10 3:32 X2040 2-Jun-10 3:32  Hello All Am developing a MultiThreading Application and I have searched the internet for guide lines how to write a thread safe methods. I found some conflicts and I would like if any of you help me to figure out the correct solution. Below is Example of a Method That I need you to Evaluate if it is thread safe or not and Why. public static int Search(string xml, char item) { return xml.IndexOf(item); } Re: Is This Method Thread Safe ? [modified] Anthony Mushrow2-Jun-10 4:02 Anthony Mushrow 2-Jun-10 4:02  Well calling IndexOf will invariably run through a loop at some point looking for item Is this thread safe? public static int Search(string xml, char item) { for(int i=0; i<xml.Length; i++) { if(xml[i] == item) return i; } return -1; } EDIT: As others have said strings are of course, immutable. I deserve a kick for that one. My current favourite quote is: Punch them in the face, see what happens! -SK Genius modified on Wednesday, June 2, 2010 10:20 AM Re: Is This Method Thread Safe ? Luc Pattyn2-Jun-10 5:10 Luc Pattyn 2-Jun-10 5:10  IMO everything you said was correct, however it did not provide an answer, it merely rephrased the question. I will not provide a kick you say you deserved. Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] I only read formatted code with indentation, so please use PRE tags for code snippets. I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page). Re: Is This Method Thread Safe ? Anthony Mushrow2-Jun-10 5:17 Anthony Mushrow 2-Jun-10 5:17  I but I was trying to point out that if the string changed while your where looping you would have a problem. But of course in c# when you pass a string it's a whole new object. Been working with C++ for too long now it seems, where everything has pointers or pointers to pointers. In one case a had a pointer to a pointer to a pointer, pointy. My current favourite quote is: Punch them in the face, see what happens! -SK Genius Re: Is This Method Thread Safe ? Luc Pattyn2-Jun-10 5:39 Luc Pattyn 2-Jun-10 5:39  SK Genius wrote: when you pass a string it's a whole new object. Now that deserves a kick. A string parameter is not a new object, in fact it is a pointer (they like to call it a reference), just as it is in C/C++/Java. However it points to an immutable object, something the compiler will not allow you to modify, only replace. Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] I only read formatted code with indentation, so please use PRE tags for code snippets. I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page). Re: Is This Method Thread Safe ? Anthony Mushrow2-Jun-10 7:03 Anthony Mushrow 2-Jun-10 7:03  Indeed, right you are. Glad too see I'm earning my Kicks. I know that (almost) everything is passed by reference so you get the actual string but anybody who modifies or replaces it is then pointing to a new object, leaving the old one intact until GC will eventually devour its soul, right? My current favourite quote is: Punch them in the face, see what happens! -SK Genius Re: Is This Method Thread Safe ? Luc Pattyn2-Jun-10 4:06 Luc Pattyn 2-Jun-10 4:06  yes, that method is thread-safe: its results only depend on input parameters, and both string and char are immutable, so there is nothing that can disturb the method; also the method is not changing the outside world, so it isn't disturbing anything itself. As soon as you start referring to other data, such as class members, things may change though. Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] I only read formatted code with indentation, so please use PRE tags for code snippets. I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page). Re: Is This Method Thread Safe ? Pete O'Hanlon2-Jun-10 4:07 Pete O'Hanlon 2-Jun-10 4:07  As you aren't operating on a member variable in this example, and you have a nice self contained method where you have immutable data, this is perfectly thread safe. In other words, there is no chance that another thread can change the value of xml or item and affect the outcome. Suppose that you changed it so that xml was a member property of type XMLElement, and you passed item in - then you could have a none thread-safe method because you could affect XMLElement before you actually performed the operation on the XML. "WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes. My blog | My articles | MoXAML PowerToys | Onyx Re: Is This Method Thread Safe ? harold aptroot2-Jun-10 5:41 harold aptroot 2-Jun-10 5:41  Not if you change the string with unsafe code. Otherwise the result will of course be correct for the (old) value of the xml parameter, but not necessarily for "something else" (I mean, if you passed in this.Xml or something like that, the result (when it is returned) may have nothing to do with the current value of that field) Re: Is This Method Thread Safe ? X20406-Jun-10 1:10 X2040 6-Jun-10 1:10  Some articles say that if you pass variables to your method that are not immutable or reference variable this may make the method not Thread Safe. Does any one has more details about this point if it is correct or wrong and why? Re: Is This Method Thread Safe ? harold aptroot6-Jun-10 9:15 harold aptroot 6-Jun-10 9:15  What exactly do you mean? Anything qucker than Image.FromStream TimSWatson2-Jun-10 3:11 TimSWatson 2-Jun-10 3:11  Hey My program recieves a byte array containing a jpg. I am using Image.FromStream and then viewing the image on a picturebox. Image.FromStream is quite slow so is there any other way I could view the jpg? Thanks Re: Anything qucker than Image.FromStream Anthony Mushrow2-Jun-10 3:20 Anthony Mushrow 2-Jun-10 3:20  I don't believe there is another way. Apart from loading it from the disk (which really, opens the file then reads it from the stream) There shouldn't really be any reason for it to go particularly slowly, unless it's a very large image. Could it be possible that something else is causing the lack of swiftness? My current favourite quote is: Punch them in the face, see what happens! -SK Genius Re: Anything qucker than Image.FromStream TimSWatson2-Jun-10 3:36 TimSWatson 2-Jun-10 3:36  The problem is im recieving 16 video streams and each is 25fps. Thats 400fps and Image.FromStream is taking 3-4 ms per frame. Its just to slow. Re: Anything qucker than Image.FromStream Anthony Mushrow2-Jun-10 3:59 Anthony Mushrow 2-Jun-10 3:59  So you're trying to play video in a picture box? You may want to check some articles on video playback with DirectX. My current favourite quote is: Punch them in the face, see what happens! -SK Genius Re: Anything qucker than Image.FromStream TimSWatson2-Jun-10 4:08 TimSWatson 2-Jun-10 4:08  No there not videos. Its a frame from a IP camera along with other information and is sent from a server. Re: Anything qucker than Image.FromStream Anthony Mushrow2-Jun-10 4:24 Anthony Mushrow 2-Jun-10 4:24  Either way, trying to render pictures so fast is beyond the capabilities and intended use of GDI+ (which is what is being used to draw your pictures) The best you can do is call SuspendLayout on your picture boxes so that they don't redraw as soon as you've changed the picture and then ResumeLayout and Invalidate once you have updated all of your picture boxes. Reducing the number of redraws that are done, but even then I can't see it being very fantastic. Also, if your showing lots of different pictures one after the other at a reasonably quick pace, I'd say that was video. My current favourite quote is: Punch them in the face, see what happens! -SK Genius Re: Anything qucker than Image.FromStream TimSWatson2-Jun-10 4:39 TimSWatson 2-Jun-10 4:39  Ok thanx for the help. So if showing pictures at a quick pace is actually just a video surely I can use DirectX or DirectShow to play the "Video"? Or wont this be quick enough to do what I want? If not I will just have to reduce the frame rate. Thanks Use a folder of XML files as a datasource for nhibernate Bart Van Eyndhoven2-Jun-10 2:38 Bart Van Eyndhoven 2-Jun-10 2:38  I am co-operating in the development of a data management system. I have written a seriously complicated component of the program with we are still debugging. Now, I am going to use NUnit to automatize a number of tests. All said, but now, for debugging purposes, I will need to run a number of tests on the component. I have chosen really specific data to use for the testing and put those data in a folder of XML files. The structure of the XML files follows the structure of the database the data could be in, but I did this for 2 reasons: Due to a network problem, I can't connect to the test database, and I wanted to exclude "data noise" to really pinpoint my tests. And now the question: how to I make NHibernate use my folder of xml files as a datasource instead of the test database? create object for a dll and get the methods arun_pk2-Jun-10 2:32 arun_pk 2-Jun-10 2:32  c:\Program Files\Microsoft SQL Server\90\SDK\Assemblies\Microsoft.Sqlserver.connectioninfo.dll how do i get an object for connectioninfo so as to use the methods and properties of connectioninfo class Pls guide me thanks in advance Re: create object for a dll and get the methods Ravi Bhavnani2-Jun-10 2:50 Ravi Bhavnani 2-Jun-10 2:50  Does this[^] article help? /ravi My new year resolution: 2048 x 1536 Home | Articles | My .NET bits | Freeware ravib(at)ravib(dot)com

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