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• Entity framework (1): implement 1 foreign key to multiple tables

  - by Michel

  Hi, i've modeled this: i have an import table, and an import steps table import 1 .. N importsteps Now i have a table importparams, which hold key/value pairs to register all kind of info about the import or the importsteps. So i have modeled a FK in SqlServer which points to the PK of the import table and to the PK of the importsteps table (the ID's for both the import as the importsteps table are guids, so i can query the importparams with either the id from import or from importsteps and get the right importparams). Makes sense a bit? But how can i model this in the EF? I can see it's a bit hard for the EF to model this, because one realtion can point to multiple classes, but is there a way? The workaround normally is just to get all importparams where FK is the ID, but as you know the FK is not available in the EF version 1. I hope you can help me out, michel

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• How to deploy and register a VSPackage supporting multiple versions of Visual Studio (2005, 2008, 20

  - by Steve Cadwallader

  I have an open source VSPackage that I would like to release with support for Visual Studio 2005, Visual Studio 2008, and Visual Studio 2010. I'm trying to figure out how to create the installer and how to perform the package registration with each edition of Visual Studio. The deployment research I've done indicates my best bet for an installer is a VSIX inside an MSI. The registration research I've done is a lot less clear. VSPackage registration seems to differ for every edition (VS2005 uses regpkg, VS2008 uses pkgdef, VS2010 uses VSIX). Can anyone share their experiences and/or point me towards any information about the best approach for targeting multiple versions of Visual Studio? I'm looking for the easiest implementation and preferably keeping it in a single installer if reasonably feasible. Any help would be greatly appreciated!

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• Multiple return points in scala closure/anonymous function

  - by Debilski

  As far as I understand it, there is no way in Scala to have multiple return points in an anonymous function, i.e. someList.map((i) => { if (i%2 == 0) return i // the early return allows me to avoid the else clause doMoreStuffAndReturnSomething(i) }) raises an error: return outside method definition. (And if it weren’t to raise that, the code would not work as I’d like it to work.) One workaround I could thing of would be the following someList.map({ def f(i: Int):Int = { if (i%2 == 0) return i doMoreStuffAndReturnSomething(i) } f }) however, I’d like to know if there is another ‘accepted’ way of doing this. Maybe a possibility to go without a name for the inner function? (A use case would be to emulate some valued continue construct inside the loop.)

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• Multiple port asynchronous I/O over serialport in C#

  - by firoso

  I'm trying to write a test application for serial I/O (RS-232) with multiple units in C# and I'm running into an issue with my lack of threading experience so I'm soliciting feedback for a best known method. I've got a pool of COM ports COM1-16 each of which can read/write at any time and I need to be able to manage them simultaneously. Is this a situation for a thread pool? What is some guidance on structuring this applet? Edit: Upon review I was wondering is I really even need to do asynchronous threads here, I could just maintain states for each COM-port and do flow logic (i.e., statemachine) for each COM-port individually.

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• jQuery validate + ajaxSubmit on multiple forms

  - by demogar

  Hello there. I'm trying to validate multiple forms in one single page with the jQuery validation plugin but it validates only the first form in the page. Here is my code: $('form.reply_form').validate({ submitHandler: function(form) { $(form).ajaxSubmit(optionsReplies); return false; } }); Is for a list of reply forms in the page (image facebook). If I try to use the third form, for example, it validates the first one and if the first one is blank it wont submit. Thank you in advance.

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• Multiple NSURLDownloads with Progress

  - by David Schiefer

  Hello, I'm trying to build a small app which allows downloading of multiple files at the same time while displaying them in a custom NSTableView. This works, i've done this by using an NSEnumerator, but I struggle at getting the progress right. It's calculated correctly, but it's not done individually for every download, instead they're added up. The way I've tried to set the subtitles containing the progress is by loading them into a separate array and then inserting/replacing objects containing the progress, but here I run into another problem - I don't know how to get the index of the object that's being downloaded, so I can't differentiate between the progresses. I hope you understand what I mean :P I've uploaded the source code to my server, I'd be really grateful if someone could have a look and help me out: http://web.me.com/david.schiefer/MyController.m

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• HTML 5 Canvas - Dynamically include multiple images in canvas

  - by Ron

  I need to include multiple images in a canvas. I want to load them dynamically via a for-loop. I tried a lot but in the best case only the last image is displayed. I check this tread but I still get only the last image. For explanation, here's my latest code(basically the one from the other post): for (var i = 0; i <= max; i++) { thisWidth = 250; thisHeight = 0; imgSrc = "photo_"+i+".jpg"; letterImg = new Image(); letterImg.onload = function() { context.drawImage(letterImg,thisWidth*i,thisHeight); } letterImg.src = imgSrc; } Any ideas?

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• Counting multiple entries in a MySQL database?

  - by Aaron

  Hi all, I'm trying to count multiple entries in a MySQL database, I know how to use COUNT(), but the exact syntax I want to get the results I need eludes me. The problem: Table structure: ID, CODE, AUTHOR, COUNTRY, TIMESTAMP. Code, Author and Country overlap many times in the table. I am trying to discover if there is one simple query that can be ran to return (using WHERE clause on COUNTRY) the author field, the code field, and then a final field that counts the number of times the CODE was present in the query result. So, theoretically I could end up with an array like: array('author', 'code', 'codeAppearsNTimes'); Authors also have varying codes associated with them, so I don't want the results merged. I suppose the end result would be: 'This author is associated with this code this many times'. Is this possible with MySQL? Thanks in advance.

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• C++ library for dealing with multiple HTTP connections

  - by JWood

  Hi, I'm looking for a library to deal with multiple simultaneous HTTP connections (pref. on a single thread) to use in C++ in Windows so it can be Win32 API based. So far, I have tried cURL (multi interface) which seems to be the most appropriate that I have found but my problem is that I may have a queue of 200 requests but I need to only run 4 of them at a time. This becomes problematic when one request may take 2 seconds and another may take 2 mins as you have to wait on all handles and receive the result of all requests in one block. If anyone knows a way round this it would be very useful. I have also tried rolling my own using WinHTTP but I need to throttle the requests so they would ideally need to be on a single thread and use callbacks for data which WinHTTP does not do. The best thing I've found which would solve all my problems is ASIHTTPRequest but unfortunately it's Mac OSX only. Thanks, J

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• Update multiple rows with one query?

  - by kavoir.com

  I found something that works with updating one field at here: http://www.karlrixon.co.uk/articles/sql/update-multiple-rows-with-different-values-and-a-single-sql-query/ UPDATE person SET name = CASE id WHEN 1 THEN 'Jim' WHEN 2 THEN 'Mike' WHEN 3 THEN 'Precious' END WHERE id IN (1,2,3) My question is how to update more than one field? Such as: UPDATE person SET name = CASE, sex = CASE id WHEN 1 THEN 'Jim', 'female' WHEN 2 THEN 'Mike' 'male' WHEN 3 THEN 'Precious', 'male' END WHERE id IN (1,2,3) Which doesn't work of course. Tried a few other combination and failed. Any idea? Thanks!

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• Flex - Tab View Multiple DataGrids and same dataProvider

  - by user283403

  I have a flex application in which I have a TabNavigator with multiple tabs and a datagrid in each of those tabs. I have bound s single array of data to each grid. What I want to do is to bind each grid with a particular set of data in that array i.e. to distribute array contents among grids based on data type. For example items starting with letter A could be displayed in first grid, B in second, starting with C in third and so on. Hence you can say alphabetically distribute the data on different grids. The problem is that the data will be added randomly by the user. To make one data array for each grid is not an option (due to design restrictions). Any suggestions please? Thanks in advance

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• jquery performance of binding multiple click events.

  - by DA

  I have a situation where I need to bind a click event to an object multiple times. For instance: for(i=0;i<=100;i++){ $myObject.click(function(){ window.location = "myurl"+i+".html"; }) ...do other stuff... } Via that markup, does $myObject end up with 100 click events attached to it? Should I be unbinding the click event first each time? for(i=0;i<=100;i++){ $myObject.unbind('click').click(function(){ window.location = "myurl"+i+".html"; }) ...do other stuff... }

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• Flex: Result event given multiple times

  - by Tom

  Hello everybody!! I am trying to learn Flex and now i have the next code: http://pastebin.com/rZwxF7w1 This code is for my login component. I want to get a special string for encrypting my password. This string is given by my authservice. But when i login i get a multiple times a alert with Done(line 69 in the pastebin code or line 4 in the code on the bottom of this question). But i want that it shows one single time. Does someone know what is wrong with this code? Tom protected function tryLogin():void { encryptStringResult.addEventListener('result', function(event:ResultEvent):void { var encryptString:String = event.result.toString(); Alert.show('Done'); }); encryptStringResult.token = auth.getEncryptString(); }

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• how to read element when we have multiple class in jquery

  - by pritisolanki

  Hi, I have a multiple div almost more than 50 and there are some div with class "holiday" Example: <div class="fc-event fc-event-vert fc-corner-top fc-corner-bottom **holiday**" style="position: absolute; z-index: 8; top: 0px; left: 61px; width: 71px; height: 40px;">content</div> I am trying to identify this div in jquery and modify the width from 71 to 80 px .. i tried $('div.holiday') it return object but when i try $('div.holiday').attr('width') it return undefined... Can someone help me in this how i can resolve this issue. Regards Priti

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• multiple visual effects on one event

  - by ZX12R

  I have a code that looks like this. <%= link_to_remote "View results", { :update=>"uxUpdateDiv" , :url=>{:controller=>"exam", :action=>"results"} , :loading=>visual_effect(:appear, "uxcLoader", :duration=> 0.1), :before =>visual_effect(:fade, "uxUpdateDiv", :duration => 0.1), :complete => visual_effect(:appear, "uxUpdateDiv", :duration => 1.5 ), :success=>visual_effect(:fade, "uxcLoader", :duration=> 1) } %> what happens here is not good enough for me. I want to add multiple effects for one event. Like the following: :complete=>(:fade, "uxLoader", :duration=>1 AND :fade, "uxTheOtherDiv", :duration=>1) How do i achieve this.? I am using jrails

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• HTTP Data chunks over multiple packets?

  - by myforwik

  What is the correct way for a HTTP server to send data over multiple packets? For example I want to transfer a file, the first packet I send is: HTTP/1.1 200 OK Content-type: application/force-download Content-Type: application/download Content-Type: application/octet-stream Content-Description: File Transfer Content-disposition: attachment; filename=test.dat Content-Transfer-Encoding: chunked 400 <first 1024 bytes here> 400 <next 1024 bytes here> 400 <next 1024 bytes here> Now I need to make a new packet, if I just send: 400 <next 1024 bytes here> All the clients close there connections on me and the files are cut short. What headers do I put in a second packet to continue on with the data stream?

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• Insert multiple values using INSERT INTO

  - by Ben McCormack

  In SQL Server 2005, I'm trying to figure out why I'm not able to insert multiple fields into a table. The following query, which inserts one record, works fine: INSERT INTO [MyDB].[dbo].[MyTable] ([FieldID] ,[Description]) VALUES (1000,N'test') However, the following query, which specifies more than one value, fails: INSERT INTO [MyDB].[dbo].[MyTable] ([FieldID] ,[Description]) VALUES (1000,N'test'),(1001,N'test2') I get this message: Msg 102, Level 15, State 1, Line 5 Incorrect syntax near ','. When I looked up the help for INSERT in SQL Sever Management Studio, one of their examples showed using the "Values" syntax that I used (with groups of values in parentheses and separated by commas). The help documentation I found in SQL Server Management Studio looks like it's for SQL Server 2008, so perhaps that's the reason that the insert doesn't work. Either way, I can't figure out why it won't work.

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• Multiple key/value pairs in HTTP POST where key is the same name

  - by randombits

  I'm working on an API that accepts data from remote clients, some of which where the key in an HTTP POST almost functions as an array. In english what this means is say I have a resource on my server called "class". A class in this sense, is the type a student sits in and a teacher educates in. When the user submits an HTTP POST to create a new class for their application, a lot of the key value pairs look like: student_name: Bob Smith student_name: Jane Smith student_name: Chris Smith What's the best way to handle this on both the client side (let's say the client is cURL or ActiveResource, whatever..) and what's a decent way of handling this on the server-side if my server is a Ruby on Rails app? Need a way to allow for multiple keys with the same name and without any namespace clashing or loss of data.

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• UnitTest ExpectedException with multiple Exceptions

  - by masterchris_99

  I want one TestMethod for multiple exceptions. The Problem ist that the Testmethod stops after the first thrown exception. I know that I can do something like that: try { sAbc.ToInteger(); Assert.Fail(); // If it gets to this line, no exception was thrown } catch (ArgumentException) { } But I want to use the following code-base: [TestMethod, ExpectedException(typeof(ArgumentException), "...")] public void StringToIntException() { sAbc.ToInteger(); // throws an exception and stops here sDecimal.ToInteger(); // throws theoretically a exception too... } And I don't want to create one testmethod for each possible exception like that: [TestMethod, ExpectedException(typeof(ArgumentException), "...")] public void StringToIntException() { sAbc.ToInteger(); } [TestMethod, ExpectedException(typeof(ArgumentException), "...")] public void StringToIntException() { sDecimal.ToInteger(); }

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• Adding data in multiple tables in vb.net

  - by user225269

  This is a winform and I'm using mysql as a database, here is my code: I'm trying to add data into multiple tables. If TextBox14.Text = "" Or TextBox7.Text = "" Or TextBox10.Text = "" Then MsgBox("Please fill up the fields with a labels in bold letters!", MsgBoxStyle.Information) cn = New MySqlConnection("Server=localhost; Database=school;Uid=root;Pwd=nitoryolai123$%^;") 'provider to be used when working with access database cn.Open() cmd = New MySqlCommand("select * from parents, mother, father", cn) cmd.CommandText = "insert into parents values('" + idnum + "','" + p_contact + "','" + p_ad + "')" cmd.CommandText = "insert into mother values('" + idnum + "','" + mother + "','" + mother_occu + "')" cmd.CommandText = "insert into father values('" + idnum + "','" + father + "',''" + father_occu + "')" cmd.ExecuteNonQuery() I get this error, please help: Index and length must refer to a location within the string. Parameter name: length

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• Perl Regex Multiple Items in Single String

  - by Sho Minamimoto

  I'm trying to parse a single string and get multiple chunks of data out from the same string with the same regex conditions. I'm parsing a single HTML doc that is static (For an undisclosed reason, I can't use an HTML parser to do the job.) I have an expression that looks like $string =~ /\<img\ssrc\="(.*)"/; and I want to get the value of $1. However, in the one string, there are many img tags like this, so I need something like an array returned (@1?) is this possible?

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• webkit multiple inline shadows

  - by meo

  I have trouble setting multiple shadows on one element in webkit: -moz-box-shadow: inset 0 0 3px #999, 0 0 5px #fff; -webkit-box-shadow: inset 0 0 3px #999, 0 0 5px #fff; box-shadow: inset 0 0 3px #999, 0 0 5px #fff; it works fine in firefox but safari displays only the inset shadow. i tried to set both values separately. But safari takes just count of the last value: -webkit-box-shadow: inset 0 0 3px #999; -webkit-box-shadow: 0 5px #fff; is it possible to set more then one shadow on a single element in safari/webkit?

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• make multiple, composite query in oracle

  - by Meloun

  How can i make multiple, composite query in oracle? for example this several queries in one step? 1 CREATE TABLE test (id NUMBER PRIMARY KEY, name VARCHAR2(30)); 2 CREATE SEQUENCE test_sequence START WITH 1 INCREMENT BY 1; 3 CREATE OR REPLACE TRIGGER test_trigger BEFORE INSERT ON test REFERENCING NEW AS NEW FOR EACH ROW BEGIN SELECT test_sequence.nextval INTO :NEW.ID FROM dual; END; 4 INSERT INTO test (name) VALUES ('Jon'); 5 INSERT INTO test (name) VALUES ('Meloun');

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• Drupal: Multiple Stylesheets

  - by Vecta

  I'm currently creating a custom Drupal theme for my company and I'm having trouble getting multiple stylesheets to load. I followed the instructions on this page by adding stylesheets to the .info file in the format: stylesheets[all][] = style.css stylesheets[all][] = name2.css etc... However, when I load the page nothing changes and when I view source, it consistently lists style.css but seems to ignore the others. Am I misunderstood in the process of adding additional stylesheets? What could I be doing incorrectly? Thanks for any help!

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• Multiple Inheritance in LINQtoSQL?

  - by Bumble Bee

  Guys, I have been surfing thru the web to find a way that I could use Multiple-Table-Inheritance in LINQ-To-SQL. But it looks like that it only supports single table inheritance which is not the best way to achieve inheritance in a ORM framework. I got to read that this will be addressed in next LINQ and Entity framework implementations. But how longer a stay we are talking about? In the meantime, if any of you guys have tried out a work-around implementation to achieve this, please let me know. And I thought of using my leisure time to come up with such an implementation so suggestions are welcome! /Bumble Bee

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