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• Struts 2: redirect-action ? From on page to another and back again.

  - by Stephan

  Hello, i have a jsp page that has a submit button. This button is linked with another jsp page. So lets assume my stuts file looks like this: B.jsp So now the submit button being on page "A.jsp" will take me to B.jsp. This works. The problem is that i want to do the following: press on the submit button on page A.jsp , go to B.jsp where i will press again a button and go back to A.jsp . The problem is that to page B.jsp go many pages, so B.jsp has to know when pressing the submit button to which page will take me back , in this case A.jsp again. So in a few words, B.jsp has to know from which page i came from so that i can go back again by pressing a submit button (this could be a parameter that would be sent back to A.jsp again, but does not really matter at the current point) A.jsp - B.jsp - A.jsp C.jsp - B.jsp - C.jsp

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• C# change e-mail 'from' address to a user-provided one.

  - by Jeff

  We have an app that allows users to send e-mails from our system. It allows the user to specify their e-mail address, and gives them several standard templates to use as a starting point for their e-mail. When we send the e-mails, we use the address they provided as the 'reply-to', but the 'from' address of the e-mail (naturally) looks like our system (from '[email protected]'). Is there a way to change this without getting tangled up in spam filters or automatic blocking? We'd prefer not to confuse the recipient as to who actually composed the e-mail they've received.

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• Querying results on timestamp in mysql

  - by Tom

  Hi, I have series of records in a table called 'hits' and each record has the current_timestamp (ie. 2010-04-30 10:11:30) in a column called 'current_time'. What I would like to do is query these records and return only the records from the current month. I cannot seem to get this to work. I have tried a range of queries that don't work such as - Select * FROM hits WHERE MONTH(FROM_UNIXTIME(current_time)) = 4 I don't know if I am even on the right lines! Can anyone point me in the right direction? Cheers.

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• Can I use breakpoints (as while debugging) while 'unit testing' ?

  - by Richard77

  Hello, I'm walking through the FrontStore series tutorial on TDD in MVC (Part 3 by Rob Conery/ASP.NET). The test I'm concerned with is the CatalogRepository_Each_Category_Contains_5_Products(). Until I get to that test, everything was working fine. Now, I've gone through every line that makes this test (including the test itself, the TestCatalogRepository, ...). I've also compared my code to that of Rob, but the test keeps failing. I also checked the source code from CodePlex, that test was not there. Now, I wonder if I can put a break point somewhere to check the local values as the test is being executed? If not, something similar? Thanks for helping.

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• select field information with min time value

  - by Scarface

  Hey guys quick question, I thought I was doing the right thing but I keep getting the wrong result. I am trying to simply find the id of the entry with the min time, but I am not getting that entry. $qryuserscount1="SELECT id,min(entry_time) FROM scrusersonline WHERE topic_id='$topic_id'"; $userscount1=mysql_query($qryuserscount1); while ($row2 = mysql_fetch_assoc($userscount1)) { echo $onlineuser= $row2['id']; } That is my query, and it does not work. This however does work which does not make sense to me SELECT id FROM scrusersonline WHERE topic_id='$topic_id' ORDER by entry_time LIMIT 1, can anyone quickly point out what I am doing wrong?

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• How to start SQL Server in a remote machine using code from Delphi?

  - by MLB

  Hi there: I am developing an application (Delphi 7, windows XP) that uses a connection to a remote SQL Server. Sometimes, that server is down, and I want to do something to start it. I was trying to start SQL Server in a local context, and it was fine, it worked... But the point is that I have to start it up from a remote machine. I can see SQL Server status from a remote server, but I can't start it up... Maybe it gets problems because of user and password, but where to specify the login to the remote machine? Do you have any idea to do this??? I am sorry about my English. Thanks.

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• Why are regular expressions such a complicated, cryptic mess?

  - by steffenj

  Often when I see regular expressions, I only see a total mess of characters. Why does it have to be this way? I guess what I really want to know is: are there alternatives to regular expressions that basically do the same thing but are implemented in a human readable language? [UPDATE] Thanks for all the great responses and inspiration! I wanted to highlight this particular link which shows how a (working) alternative would look like, which may also be a good starting point for learning or "simple" regex expressions. But you also quickly get a feel for the verbosity tradeoff.

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• How do you push changes to GitHub on OS X 10.6?

  - by dougoftheabaci

  I'm really new to the whole GitHub thing so this might seem like a basic question but I can't figure it out. I have a GitHub repository set up on my machine, I've managed at some point to push the master but now I have made some changes and I want to push the entire thing again (pretty much everything changed). What I'm wondering is: How do you push an entire repository to create a new version (from version 1.0.0 to 1.0.1)? How do you push a single file for more incremental changes?

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• Objective-C retain clarification

  - by Maverick

  I'm looking at this code: NSMutableArray *controllers = [[NSMutableArray alloc] init]; for (unsigned i = 0; i < kNumberOfPages; i++) { [controllers addObject:[NSNull null]]; } self.viewControllers = controllers; [controllers release]; Later on... - (void)dealloc { [viewControllers release]; ... } I see that self.viewControllers and controllers now point to the same allocated memory (of type NSMutableArray *), but when I call [controllers release] isn't self.viewControllers released as well, or is setting self.viewControllers = controllers automatically retains that memory?

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• delphi finalizalization code in a DLL

  - by PA

  I am moving some functions to a shared DLL (I want to have some called as a Windows hook). The actual functions are currently in a unit, and it happens to have some initialization and some finalization code. I was initially thinking on doing a direct transformation from a unit to a library. So I moved the initialization code in between the main begin and end.. But then I realized I had no place to move the finalization code. I should create and register an special DLL entry point, instead. My question is. Can I leave the unit with all the functions and the initialization and finalization codes and just create a library stub that uses the unit? will the finalizationit be called?

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• iOS sdk question: how do I cast a UIView to a UIImage View (alternativly how do I get a UIImageView from a GestureRecognzer?)

  - by user439299

  Desired end result: user taps a UIImageView and the image changes to another image (a subsequent tap returns the image to the original state) Problem: I add a (unique) selector to a bunch of UIImageViews (in an array) and point the action at the same function - let's call this function imageTapped: for now. Here is my code so far: -(void)imageTapped:(UITapGestureRecognizer *)tapGesture { UIImageView *view = tapGesture.view; // rest of code... } This code actually works fine but gets a warning when I run it: "Incompatible objective c types initilizing 'struct UIView *', expected 'struct UIImageView *' Any way to get rid of this? Not sure how casting works in objective c... primitive types seem to work fine such as (int)someFloat works fine but (UIImageView)someUiView doesn't work. Like I said, code works alright when I run it but would like to get ride of the compiler warning. Any help would be awesome.... I am very new to objective c (or any non java language for that matter) so be gentle. Thanks in advance.

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• Class or interface expected error (java)

  - by David

  When i try to compile this: public static int compareCardhl (Card c1, Card c2) } if (c1.suit > c2.suit) return 1 ; if (c1.suit < c2.suit) return -1 ; if (c1.rank > c2.rank) return 1 ; if (c1.rank < c2.rank) return -1 ; return 0; } i get a lot of class or intereface expected errors. They all point at the if's. i also get a ; expected error at the end of Card c2). whats going wrong here?

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• Turning user ID into name (seperate tables) in PHP

  - by mobile

  I am currently trying to display the username of people who i am following, the problem is that during the following process, only the ID of me and the person i'm following is stored. I've got it to the point where the ID's are displayed but i'd like to show the names hyperlinked. $p_id is the profile ID. Here's what I've got: $following = mysql_query("SELECT `follower`, `followed` FROM user_follow WHERE follower=$p_id"); I am following: <?php while($apple = mysql_fetch_array($following)){ echo '<a href="'.$apple['followed'].'">+'.$apple['followed'].'</a> '; }?> The usernames are in a different table "users" under the field "username" - I need them to match up with the ID's that are currently displayed, and be displayed. Any help appreciated, thanks guys

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• How do you make long SQL invoked from other code readable?

  - by Artem

  This is a very open question, but I think it can be very beneficial for SQL readability. So you have a Java program, and you are trying to call a monster SQL statement from it, with many subqueries and joins. The starting point for my question is a string constant like this: static string MONSTER_STATEMENT = "SELECT " + " fields" + "WHERE "+ " fieldA = (SELECT a FROM TableC) " + "AND fieldB IN (%s)" + "AND fieldC = %d " + "FROM " " tableA INNER JOIN tableB ON ..."; It later gets filled using String.format and executed. What are you tricks for making this kind of stuff readable? Do you separate your inner joins. Do you indent the SQL itself inside the string? Where do you put the comments? Please share all of the tricks in your arsenal.

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• WCF service code in window application

  - by Mariya

  Hello, I am using C#.net application code. I require to call service for Window Application and i am using below code to open service Host, using (ServiceHost host = new ServiceHost( typeof(class1), new Uri[] { new Uri("net.pipe://localhost") }) ) { } & Then we have clinet Console application to connect to serviceHost. Problem is, When i create service/Client application Using Conslole Application both are working fine. But if i call servide code form Window application to connect to console client it gives Error for Binding Error like("No End Point/Address found to test") Can any one help me to run service from C# window application ? Thanks

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• Domain Redirection While Maintaining Original URL

  - by Steve

  I have two domains ("this_site.com" and "that_site.com") that I want to point to the same place (same set of files). BUT What I really want to do is maintain the original URL in the address bar while the visitor accesses the different pages. Example: The primary domain holding the web files is "this_site.com". If I type in "that_site.com" in the address bar, I want the address bar to keep displaying "that_site.com" no matter where they go on the web site. Normal domain redirection causes the URL displayed in the address bar to change to the 'master' domain (i.e. the visitor that typed in "that_site.com" will see the address bar's URL change to "this_site.com"). Is there some sort of .htaccess trick that I can employ to do this? What I'm trying to do is NOT confuse visitors who visit one URL and find themselves on a different URL as well as avoid the additional expense and trouble of having to maintain two separate hosting accounts.

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• Is there a way to get the current UIEvent being handled?

  - by not-

  I'm working in a class that is a delegate of another class; this other class is in a third-party library that I'd like to avoid changing if at all possible. The original class is handling a -touchesEnded event, and is delegating responsibility to me, but it doesn't pass the UIEvent itself to me. Is there a way to get a handle to the current event in progress? It's a double-tap handler, and all that is passed to me is the view being touched, and the point at which the touch occurred. I want to know exactly how many touches are involved in the event. Thanks! randy

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• Are there design-time watch windows for Visual Studio 2008/2010?

  - by Jeff

  There are many times when I need to test a little snippet of .net code but rebuilding and publishing the entire project or writing a suite of unit tests just seems like overkill. For example, I am writing a regular expression right now and I want to see if it the pattern is matching on the right parts. I could go and find a million other utilities that do that sort of thing, but that is not exactly my point. FireBug has an exact analogue to what I want - the FireBug console. There is a text box where the user can enter some JavaScript and FireBug will execute it on the spot and display the return value. I would love to be able to enter something like (new Regex("b+")).Replace("abc", "x") and see the results without having to do all the overhead. Does VS have anything like this?

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• PHP --> MSSQL + Excel file upload from a specific row

  - by lucky

  Hello, I have a requirement in which, i need to upload an excel file into MSSQL database. It is working well till this point. But sometimes i am getting excel file in such a way, that the first 2 rows and columns are empty rows. That is not even fixed everytime. so the format of the table after upload is not as expected. It is assigning F1, F2 as column names for the table in mssql. It varies from file to file. I want to program it in such away so that the user can enter the row number and the column number from where the actual data is starting. So that while upload it should from line 3 and column 2. I dont know how to specify that row and column while uploading. Please help me to solve the same.

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• How to create "lock" (stop updating of cells) in Excel?

  - by Oozi

  My question is pretty simple, but one to which I can't really find a solution myself. I use Excel quite frequently, but rarely the fancy stuff. Anyway, to the point: How do I create a dropmenu that will lock certain cells, rows or columns? (by lock I mean unable to change via hand and stops updating itself). Example: A1 = 5 B1 = A1 * 100 Can I "lock" the B1-cell, so that changing A1 will have no effect on B1 (Will remain at value 500)? I would preferably want to be able to "unlock" the cell as well, instead of simply making function into value. Is this possible? Thanks in advance!

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• Sending data between activities within my app?

  - by user246114

  Hi, I have a TabActivity, and the tabs point to sub activities. Is there a way I can send a 'message' to those child activities? I just want to pass a string across, not sure if this is possible. I have some data being fetched by the parent TabActivity, and the child tabs can't do anything useful until the parent is done fetching. When fetching is complete, I'd like to pass that data to the child activities so they can do something useful with it. Notmally I'd set the data to be passed in the Intent when first creating the activity, but in this case I can't do that. Thanks

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• Subversion Copy Hook on Windows

  - by GeoSQL

  Hi I am working on a web based project in my free time. I have SVN set up on my machine (running XP). What I would like to do is have a copy of my repository copied to the htdocs folder (Dev machine) post-commit via a hook. That way I can test my changes in a browser. I know that I can write up a .bat file, but I'm not sure what the syntax would be. I can do a basic DOS Copy command, but I saw one example that provided a username and password to SVN at copy time. Do I need to do this? Can someone point me in the right direction as far a syntax for the .bat file? Or maybe even suggest a better method. Thanks

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• Add a Click Event to elements added to the DOM

  - by E7AD

  var myOP = '<div>'; for (var i = 0; i < op.length; i++) { myOP += '<div>'; myOP += '<div id="myBTN-' + [i] + '">' + op[i]['Field1'] + '</div>'; myOP += '<div id="blah-' + [i] + '">' + op[i]['Field2'] + '</div>'; myOP += '</div>'; } myOP += '</div>'; $("#myBTN-" + i).click(function () { $('#blah-' + i).toggle("slow"); }); $('#container').html(myOP); I'm trying to get the click function to fire on the elements i'm created w/ the above for loop. Can anyone point me in the right direction?

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• Speedup C++ code

  - by Werner

  Hi, I am writing a C++ number crunching application, where the bottleneck is a function that has to calculate for double: template<class T> inline T sqr(const T& x){return x*x;} and another one that calculates Base dist2(const Point& p) const { return sqr(x-p.x) + sqr(y-p.y) + sqr(z-p.z); } These operations take 80% of the computation time. I wonder if you can suggest approaches to make it faster, even if there is some sort of accuracy loss Thanks

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• How to get the next row from the Database table?

  - by Parth

  How to get the next row from the Database table? Such that the row might be incremented row that is if structure has a field called "id" then the row can be id++ or very next incremented row, but it may also b any other id containing row (NOT VERY NEXT) , (because the ids could be deleted from the table). the point of id I am talking about is It could be 1,2,3,4.... or it could be 1,6,7,8,23.. so on.... Please help for fetching the next row in the for loop to get it checked.

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