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• C# empty statement

  - by dotnetdev

  In C#, I can write something like: using (new MyDisposableClass().MethodA()); The semicolon causes a compiler warning to be shown which states possible mistaken empty statement. I haven't run the above code but won't the method still be called? What uses is there of this type of coding convention? I saw another thread on here about this but I ask in case there areny differences now/therefore different replies. Thanks

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• Question on jpa joined table inheritance

  - by soontobeared

  Hi, The 'DiscriminatorColumn' annotation isn't creating any column in my parent entity. Where am I going wrong ? Here's my code @Entity @Inheritance(strategy=InheritanceType.JOINED) @DiscriminatorColumn(name="TYPE", discriminatorType=DiscriminatorType.STRING,length=20) public class WorkUnit extends BaseEntityClass implements Serializable{ @Entity @DiscriminatorValue(value="G") @Table(name="Group_") @PrimaryKeyJoinColumn public class Group extends WorkUnit implements Serializable{

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• Using different datasources for particular queries with Spring and IBATIS

  - by dnbwise

  I have the requirement of updating an app to use multiple (i.e., two in this case) datasources depending upon the type of query. For instance, use DB1 for reads and DB2 for write operations. How would I approach this?

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• sql server: looking for table usage through out database...

  - by dotnet-practitioner

  How would I figure out what type of sql code such as procs, functions, views etc. are interacting with my table called TABLE1 through out a given database. Sample code would be very helpful for me. thanks

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• how to make array of class objects using dynamic allocation in c#?

  - by jack22

  hi, i made a class named x; so i want to make array of it using dynamic allocation x [] myobjects = new x(); but it gives me that error Cannot implicitly convert type 'ObjAssig4.x' to 'ObjAssig4.x[]' i know it's dump question but i am a beginner thanks

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• UITextView doesn't support Paste !

  - by Momeks

  Hi , i created persian custom keyboard , my letters type on UITextView , but the UITextView dosn't support paste function ! why ? i don't check the editable option .

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• Customer count map (Google maps?)

  - by David Hamilton

  I have a two column list consisting of a US zipcode and a count (number of customers in this case). I want to put this data onto a map. Would Google maps API be a good fit for this? It seems like this would be a common enough type of problem to already have an existing (preferably Java based) solution without having to re-invent the wheel. Any suggestions?

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• imagefill() turns rest of the area black

  - by Nidhinzz Own

  I'm using imagefill() for changing the background color if an image.But while doing so the other areas which are not to be affected, change its color to black. $image = imagecreatefrompng("sample.png"); $background = imagecolorallocate($image, 255, 0,0); imagefill($image, 0,0, $background); header("content-type: image/png"); imagepng($image,"sample.png"); This is my code.Can anyone tell me how this is happening ?

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• How to gather arbitrary length list data in ASP.NET MVC.

  - by C. Ross

  I need to gather a list of items associated with another item from my user in a ASP.NET MVC project. I would like to have a controller action like bellow. [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(int x, int y, IEnumerable<int> zKeys) { //Do stuff here } How can I setup my form to pass data in this way? If data of this particular form can't be provided, what's the next best way to pass this type of information in ASP.NET MVC?

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• What is a good free ODBC viewer?

  - by wshato

  At my job I have to work with three different databases. One is a SQL Server 2008, for which I use SQL Server Management Studio, and another is MySQL, for which I use the MySQL tools. The third however is a Cache database that I can only access through a ODBC connection. Currently I use the SLIK software ODBC View tool to access it, but it is severely lacking when compared with the other two tools. Can anyone recommend a good tool for this type of work?

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• is it possible to store server returned json data in jqgrid to display columnnames models data dynamically for every request?

  - by user1768246

  is it possible to store server returned json data in jqgrid to display columnnames models data dynamically for every request ? $("#grid").jqGrid({ type: "GET", url: "", var columnNames = $("#grid")[0].p.colNames, var columnModel = $("#grid")[0].p.colNames, var columnData = $("#grid")[0].p.colNames, datatype: 'jsonstring', datastr: columnData, colModel: columnModel, jsonReader: { root: 'innerWrapper.rows', page: "result.gridData.outerWrapper.page", total: "result.gridData.outerWrapper.total", records: "result.gridData.outerWrapper.total", repeatitems: false, }, gridview: true, pager: "pager", height: "auto", rowNum: 10, width:"auto", height:"auto", rowList: [10, 20, 30,40], viewrecords: true, caption:"Graph Data", rownumbers: true, });

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• jQuery bind method

  - by rajeeesh

  In one of my HTML page dynamically loading some file field while clicking a button like follows $('#add').click(function(){ $('#files').append('<input type="file" class="myfile" name="myfile" />'); }); My question is how to "bind" newly added element to HTML page so that I can access like $('.myfile').change(function(){ // Code Here }); I am asking this because $('.myfile').live('change',function(){ // Code here }); not working in all browsers , expecially IE Please help thanks

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• unix DECLARE_WAIT_QUEUE_HEAD (var) var prototype?

  - by yoavstr

  hello i want to work with 2 queue in the module where i change my pointer to them therefore i need to use : //declartion wait_queue_head_t **currentQ; DECLARE_WAIT_QUEUE_HEAD (readWaitQ1); DECLARE_WAIT_QUEUE_HEAD (readWaitQ2); if(condition){ currentQ = &readWaitQ1; }else{ currentQ = &readWaitQ2; } but i get incorrect type for wake_up an other stuff using the queue. even thought i google it i couldnt find an answer can someone just give me the prototype needed?...

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• Code formatting when using pointers

  - by HD-VRSCA

  Is there any reason why the asterisk is next to the object type in this code? I'm a little confused by the way I see this used. Some times it looks like this: NSString* stringBefore; and sometimes like this: NSString *stringBefore; Is there a difference? Or a right or wrong way to do this? Thanks

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• How can i reuse a color in a stylesheet?

  - by Michel

  Hi, i have a stylesheet and a lot of styles with the same border color (#CCCCCC to be precise). Is there a way to specify some kind of variable and reuse that, so in stead of typing #CCCCCC over and over, i can type border: 1px solid $bordercolor; ps i'm using asp.net mvc

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• Mysql optimization

  - by Jens

  I have this mysql table called comments which looks like this: commentID parentID type userID date comment The commentID is set as Primary key, but most of the time I fetch the data using the parentID. How should I set my indexes? Should I just add an index on parentID and let commentID be the primary key?

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• How do I set a static bool in another app domain?

  - by Martin

  How do I programatically set the value of a static boolean in another app domain? I'm testing an application where I need to change a bool value. Problem is that the bool value exists as a static instance on a type hosted in another app domain. (I'm doing this for test purposes, it won't be used in production code)

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• Is two-finger non-homerow touch-typing for programming acceptable?

  - by codebliss

  I'm currently typing about 90 wpm (from http://speedtest.10-fast-fingers.com/ 90 correct 0 missed) using two fingers and the occasional ring or index. This probably grew from learning to type at an early age, before home-row was presented to me. Is this acceptable? Do people religiously endorse home-row even with low-mistake poking without looking at the keyboard?

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• Word 2007 Documents in Visual Studio 2010

  - by Will Eddins

  I'm currently using Visual Studio 2010 Professional, and noticed the ability to create Word 2007 and Word 2010 documents with C# code-behinds. What I'm looking to do is fill in a report-type document with information in my C# application, and then output the final .docx. Is this possible using this feature, and how do I go about doing it?

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• Session vs singleton pattern

  - by chobo

  Hi, I have a web application where I would like to pull user settings from a database and store them for Global access. Would it make more sense to store the data in a Singleton, or a Session object? What's the difference between the two? Is it better to store the data as an object reference or break it up into value type objects (ints and strings)? Thanks!

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• Updated Timestamp field in MySQL through PHP

  - by Vincent

  All, I have a database table in mysql with a field that is of "TIMESTAMP" type. I need help writing the SQL query to update the field with the current timestamp. UPDATE tb_Test set dt_modified = ????? Thanks,

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• What's the simplest and most robust way to have constant-height submit button with rounded corners?

  - by taw

  Constant height so just left/right images should be necessary instead of having 4+, right? I'd still want top-to-bottom color gradient (and different one on hover). If possible, I'd prefer if it was still an <input type='submit'> and not anything weird. Is there any way (website / imagemagick script etc.) to generate these images automatically or do I need to draw them in some graphics program?

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• What does the symbol ::: mean in R

  - by Milktrader

  I came across this in the following context from B. Pfaff's "Analysis of Integrated and Cointegrated Time Series in R" ## Impulse response analysis of SVAR A-type model 1 args (vars ::: irf.svarest) 2 irf.svara <- irf (svar.A, impulse = ”y1 ” , 3 response = ”y2 ” , boot = FALSE) 4 args (vars ::: plot.varirf) 5 plot (irf.svara)

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• What is a good program for storing “chunks” of commonly used source code

  - by Rob Wiley

  I've looked at CodeLocker (poorly styled and relatively unflexible, but free) and Source Code Library (Overzone software - very nicely styled, looks flexible, but very expensive - $80). Ideally, I'm looking for a relatively simple, inexpensive program (not an online website) that I can save text data (source code) with a title and keywords, maybe even a description. It would also have some type of search functionality.

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• Existing function to slice pandas object by axis number

  - by Zero

  Pandas has the following indexers: Object Type Indexers Series s.loc[indexer] DataFrame df.loc[row_indexer,column_indexer] Panel p.loc[item_indexer,major_indexer,minor_indexer] I would like to be able to index dynamically by axis, for example: df = pd.DataFrame(data=0, index=['row1', 'row2', 'row3'], columns=['col1', 'col2', col3']) df.index(['row1', 'row3'], axis=0) # index by rows df.index(['col1', 'col2'], axis=1) # index by columns Is there a built-in function that does this?

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