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• DevExpress AspxGridView filter in ObjectDataSource

  - by Constantin Baciu

  Yet another problem with DevExpress AspxGridView :) The context: One Page In the Page, a custom control In the custom Control, a AspxDropDown The AspxDropDown, has a DropDownWindowTemplate In the DropDownItemTemplate, I add a GridView and a paging/sorting/filtering enabled ObjectDataSource When handling the Selecting event of the ObjectDataSource, I should set filter parameters for the datasource. There filter parameters should come from the FilterRow of the AspxGridView (preferably using the AspxGriedView.FilterExpression property). The problem: the AspxGriedView.FilterExpression property is not set to the proper values (set by the user). Did anyone find a good implementation of what I'm trying to do here? Thanks a bunch. :)

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• Which datagrid to use for ASP.NET MVC2 project?

  - by Nick

  Hi, I am developing a commercial MVC2 app that requires a grid that has callback update in some form to support 10,000+ rows. It should also support relatively rich content (icons, multiline descriptions etc). Although it requires the usual paging/scrolling/sorting features it does not need support for grouping. So nothing that special. The commercial grids I looked at were Component Art (http://www.componentart.com/products/aspnetmvc/datagrid/) and Telerik (http://www.telerik.com/products/aspnet-mvc/grid.aspx) which both look pretty good but may be a little OTT for what I need. They are also $800 and $999 respectively (1 developer). I've also looked at jqGrid (http://www.trirand.net/download.aspx) and the grid from MvcContrib. These appear ok but for a commercial app I am concerned that these may be risky options - though could be wrong there. I'd really appreciate any views/exprience on either the above grids or perhaps you can suggest a better option/approach. FYI I am using EF4 and C#. Cheers

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• jquery nested sortable

  - by mcgrailm

  I have been using NestedSortabe from b-hind and found it quite useful until I upgraded to latest jquery and jquery-ui I guess they changed the way mouse events are handled or something to that effect. Point it the nestedSortable doesn't work any longer. So my question is tri fold does anyone know if the folks at jquery have implemented a nested sortable I haven't seen anything. or does anyone know how to fix the b-hind version or know of something better / light weight to accomplish the same goals would like something compatible with lastest jquery-ui EDIT: it appears as though the lastest version of jquery-ui-sortable supports nested sorting !!!

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• Django ORM: Ordering w/ aggregate functions — None special treatment

  - by deno

  Hi, I'm doing query like that: SomeObject.objects.annotate(something=Avg('something')).order_by(something).all() Now, I normally have an aggregate field in my model that I use with Django signals to keep in sync, however in this case perfomance isn't an issue so I thought I'd keep it simple and just use subqueries. This approach, however, presented an unexpected issue: It all works grate if aggregate function results are like this: [5.0, 4.0, 6.0 … (etc, just numbers)] However if you mix in some Nones than it's being ordered like this: [None, 5.0, 4.0 …] The issue is that None has higher value than any number, while it should have value at most of 0. I'm using PostgreSQL and haven't tested w/ other DBs. I haven't actually checked what query is generated etc. I worked it around by just sorting in memory: sorted(…, key=lambda _:_.avg_rating if _.avg_rating is not None else 0) So I'm just curious if you know a way to do it w/ just Django ORM. Perhaps .where? or something… Kind regards

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• jQuery — Nested Sortables Plugin — Disabling sortability between parents

  - by AJB

  I've got a question that I think is simple but I've not been able to figure it out. This is in regard to this plugin: http://mjsarfatti.com/sandbox/nestedSortable/ Essentially, I want to disable the ability to sort children outside of their parents. So, I've got this: CATEGORY 1 ITEM 1.1 ITEM 1.2 ITEM 1.3 CATEGORY 2 ITEM 2.1 ITEM 2.2 ITEM 2.3 So, I'd like to provide the ability for users to sort the children within their category, and the ability to sort the categories themselves. But I want to disable the ability to move a child to another parent. (e.g. ITEM 1.1 cannot be moved to CATEGORY 2). And also I would like to disable the abilty to nest any parents in any children. I tried setting it so that the 'nestedSortable' function is called for every new OL but that simple disables sorting for everything entirely. Thanks for any help.

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• JQuery IE7 Z-Index Bug

  - by Thomas

  I built a Jquery dropdown menu using this tutorial: http://noupe.indexsite.org/tutorial/drop-down-menu-jquery-css.html It works across browsers except for IE7 (shooooocking). There seems to be a z-index sorting problem and the drop down menu shows up under all of my other JQuery elements. Im not sure how to set the z-index so that it shows up on top. I have thoroughly googled the issue and it seems to be related to multiple 'position:relative' elements. I've messed with it for a few hours but I can't seem to sort it out. I have already tried defining z-index for all the different page elements but it doesn't seem t help the situation. You can check out the problem here: http://hardtopdepot.com/dev/index.html Any help would be really appreciated - thanks! Also, I know there are other IE7 issues, but Im pretty confident that I can solve those as they are standard IE padding/margins nonsense.

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• JQuery Tablesorter memorizeSortOrder widget

  - by echedey lorenzo

  Hi, I've found this code in the internet: $.tablesorter.addWidget({ id: "memorizeSortOrder", format: function(table) { if (!table.config.widgetMemorizeSortOrder.isBinded) { // only bind if not already binded table.config.widgetMemorizeSortOrder.isBinded = true; $("thead th:visible",table).click(function() { var i = $("thead th:visible",table).index(this); $.get(table.config.widgetMemorizeSortOrder.url+i+'|'+table.config.headerList[i].order); }); } // fi } }); Found in: http://www.adspeed.org/2008/10/jquery-extend-tablesorter-plugin.html I would like to memorize the sorting of my ajax tables so on each update (table changes completely so there is no append) it keeps sorted the as it was. Question is.. how can use this? $("#tablediv").load( "table.php", null, function (responseText, textStatus, req) { $("#table").trigger("update"); } ); What changes do I need?

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• Is recursion ever faster than looping?

  - by Carson Myers

  I know that recursion is sometimes a lot cleaner than looping, and I'm not asking anything about when I should use recursion over iteration, I know there are lots of questions about that already. What I'm asking is, is recursion ever faster than a loop? To me it seems like, you would always be able to refine a loop and get it to perform more quickly than a recursive function because the loop is absent constantly setting up new stack frames. I'm specifically looking for whether recursion is faster in applications where recursion is the right way to handle the data, such as in some sorting functions, in binary trees, etc.

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• Are there alternatives to UltraWinGrid (for C#)?

  - by MPelletier

  I've been using the Infragistics UltraWinGrid for a while in a C# project, and while it's very spiffy, it is sometimes a bit heavy to run (and editing it in Visual Studio can be hazardous). I'm looking for a lighter alternative. Looks (always a big plus with Infragistics) are not as important as functionality. Namely, I'm looking for a beefed up DataGridView which: has data binding (duh!) has lock control over editing allows for sub-tables on opening a row can have multiple headers to group columns together (say header 1 is composed of "Group A" and "Group B", and header 2 has various columns under each group) has sorting by column (and can sort numbers properly, even if it does not have a stock method at first) has filtering by column (perhaps the most demanding spec) à la UltraWinGrid/Excel (text field with a way to specify if the filter is equal, not equal, greater, lesser, starts with, ends with, etc). supports check box, text box or data bound list/combo box cells allows cells to be merged (not the control cells of course!) can have events bound to each row (say double click)

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• ASP.NET Grid AjaxPanel Download Issue

  - by Mahesh

  Hi, I have a telerik grid which is performing operations like searching,sorting,filtering etc. To make customers happy, we put this control in an ajax panel for seamless experience. Now, we added a new functionality to the grid where the customer can download the entire row information as a csv file. As the response is a file, ajax panel is trying to parse the output and throwing the following exception: Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled. Details: Error parsing near '?'. Could you please help me in having both functionalities( Ajax and Download) in place without any error?? Thanks, Mahesh

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• How to sort by a field that has an alternative value if null in lucene?

  - by citizenmatt

  Hi folks. I want to sort my lucene(.net) search results by a date field (date1), but if date1 is not set, I'd like to use date2. The traditional sort method is to sort by date1, and then sort the values that are the same by date 2. This would mean that whenever I did fall back to date2, these values would be at the top (or bottom) of the result set. I'd like to interleave the date2 values with the date1 values. In other words, I want to sort on (date1 != null ? date1 : date2). Is this possible in lucene? I reckon I could do this in the index creation phase (just put the relevant date value in a new field) but I don't have enough control of the indexing process to be able to do this, so would like a sorting solution. Any ideas? Thanks Matt

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• jquery dataTables plugin: dynamically modify ajaxSource

  - by Anthony Koval'

  hello! on my page i have dataTable, which was initialized with, for example, sAjaxSource url like "/api/reports". when we're doing sorting, filtering it appends to url additional query-keys. I want do add keys "date_from" and "date_to" to sAjaxSource url (date intervals could be changed after table initialization). is there any entry-point function, before table reload, so i can do there smth like: var oSettings = rtbl.fnSettings(); oSettings.sAjaxSource = "/api/reports/?type=sites&date_from=" + $("#date_from").text() + "&date_to=" + $("#date_to").text(); thanks for your help!

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• combinations algorithm

  - by mysterious jean

  I want to make simple sorting algorithm. given the input "abcde", I would like the output below. could you tell me the algorithm for that? arr[0] = "a" arr[1] = "ab" arr[2] = "ac" arr[3] = "ad" arr[4] = "ae" arr[5] = "abc" arr[6] = "abd" arr[7] = "abe" ... arr[n] = "abcde" arr[n+1] = "b" arr[n+2] = "bc" arr[n+3] = "bd" arr[n+4] = "be" arr[n+5] = "bcd" arr[n+5] = "bce" arr[n+5] = "bde" ... arr[n+m] = "bcde" ... ...

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• Database structure - To join or not to join

  - by Industrial

  Hi! We're drawing up the database structure with the help of mySQL Workbench for a new app and the number of joins required to make a listing of the data is increasing drastically as the many-to-many relationships increases. The application will be quite read-heavy and have a couple of hundred thousand rows per table. The questions: Is it really that bad to merge tables where needed and thereby reducing joins? Should we start looking at horizontal partitioning? (in conjunction with merging tables) Is there a better way then pivot tables to take care of many-to-many relationships? We discussed about instead storing all data in serialized text columns and having the application make the sorting instead of the database, but this seems like a very bad idea, even though that the database will be heavily cached. What do you think? Thanks!

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• Is it possible to interop with Thunderbird using C#?

  - by Jurily

  Here's the latest hurdle in my ongoing quest to automate my job: All email in the company goes through 4 different email adresses, switching randomly back and forth (with a note attached in the global share: please set "keep email on server") All logic related to email is contained in a nice big Thunderbird profile, which gets copied back and forth to new machines; this includes sorting invoices into 5 different "folders", the list of VIP adresses to send notifications, and the VIP level of those customers I only need the contents of those folders (the attachments, anyway) The question: is there a way to ask Thunderbird for those attachments and lists from C#? Alternatively, can Outlook be set up to synchronize with Thunderbird? Where do I start reading? Ditching Thunderbird is not an option right now, I need to keep up with changes to the VIP list. P.S. I will set up a real email server right after Monkey saves me enough time to convince people about it.

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• mysql first record retrieval

  - by Sammy

  While very easy to do in Perl or PHP, I cannot figure how to use mysql only to extract the first unique occurence of a record. For example, given the following table: Name Date Time Sale John 2010-09-12 10:22:22 500 Bill 2010-08-12 09:22:37 2000 John 2010-09-13 10:22:22 500 Sue 2010-09-01 09:07:21 1000 Bill 2010-07-25 11:23:23 2000 Sue 2010-06-24 13:23:45 1000 I would like to extract the first record for each individual in asc time order. After sorting the table is ascending time order, I need to extract the first unique record by name. So the output would be : Name Date Time Sale John 2010-09-12 10:22:22 500 Bill 2010-07-25 11:23:23 2000 Sue 2010-06-24 13:23:45 1000 Is this doable in an easy fashion with mySQL? Thanks, Sammy

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• asp.net ajax, change asp:image imageurl

  - by maxxxee

  I have an update panel within which a sortable grid is present. While sorting, I have to change an image which shows the sort direction. The sort is an ajax operation initiated by a linkbutton for each column. Everything works fine except the image control. I am able to toggle visible property to show and hide it but, not able to change the ImageUrl property. imagesort.ImageUrl = "~/images/asc.jpg"; imagesort.Visible = true; The above code shows the image but the image is always the imageurl given in the markup not what is set in the code. If imageurl is not specified in the markup, no image(broken image) is shown irrespective of the above code.

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• Core Data iPad/iPhone BLOBS vs File system for 20k PDFs

  - by jamone

  I'm designing an iPad/iPhone app using core data. The main focus of the app is sorting and viewing up to 20,000 PDFs They are ~200KB each. Typically its best to not store BLOBS in a DB, but for desktop systems I've typically seen it said that if the blobs are < 1 MB then its fine to use the DB. Any considerations I should take into count? If I store them in the file system can I store them all in one directory and not have performance issues (I won't need to ever get a directory list since I'd store each's path in the DB)? Should I divide them among a handful of directories? If so is there a good rule on # of files per dir?

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• Automating scraping of table data to XML

  - by thewinchester

  Problem I have a YQL query result that I'm trying to get converted and sort into a clean XML file. Background Being the pains that they are, information from the World Cup isn't freely available in an easy to reuse format. So, after a bit of finessing with YQL I have managed to liberate the required table rows which contain the data I'm after. The YQL query can be viewed at: http://query.yahooapis.com/v1/public/yql/ravingbeefsteak/worldcup2010groupliberator?diagnostics=true I'd like to now convert this information into XML, and being an absolute n00b I don't know where to start or what to look for. I'm also needing to do a find and replace on the data to get the URL's working as they should without manual changes, and hopefully an initial sorting of the data. If anyone can point me in the right direction of what I need to be doing to make my needs a reality it would be greatly appreciated.

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• How to filter rows in JTable based on boolean valued columns?

  - by vinny

  Im trying to filter rows based on a column say c1 that contains boolean values. I want to show only rows that have 'true' in c1. I looked up the examples in http://java.sun.com/docs/books/tutorial/uiswing/components/table.html#sorting. The example uses a regex filter. Is there any way I can use boolean values to filter rows? Following is the code Im using (borrowed from the example) private void filter(boolean show) { RowFilter<TableModel, Object> filter = null; TableModel model = jTb.getModel(); boolean value = (Boolean) model.getValueAt(0,1); //If current expression doesn't parse, don't update. try { // I need to used 'value' to filter instead of filterText. filter =RowFilter.regexFilter(filterText, 0); } catch (java.util.regex.PatternSyntaxException e) { return; } sorter.setRowFilter(filter); } thank you.

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• WCF Paged Results & Data Export

  - by Ben

  I've walked into a project that is using a WCF service for the data tier. Currently, when data is needed for a grid, all rows are returned and the results are bound to a grid and the dataset is stuffed into a session variable for paging/sorting/rebinding. We've already hit a max message size problem, so I'm thinking it's time to convert from fetch and cache to fetch only the current page. Face value this seems easy enough, but there's a small catch. The user is allowed to export the entire result set at any point. This means that for grid viewing purposes fetching the current page is fine, but when they want to do an export, I still need to make a call for all data. This puts me back into the max message size issue. What is the recommended approach for this type of setup? We are currently using the wsHttpBinding... Thanks for any assistance.

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• Sort ArrayList of custom Objects by property

  - by Samuel

  Hello World!! :D I had a question which is pretty easy if you know the answer I guess. I read about sorting ArrayLists using a Comparator but somehow in all of the examples people used compareTo which according to some research is a method working on Strings... I wanted to sort an ArrayList of custom objects by one of their properties: a Date object (getStartDay()). Normally I compare them by item1.getStartDate().before(item2.getStartDate()) so I was wondering whether I could write something like: public class customComparator { public boolean compare(Object object1, Object object2) { return object1.getStartDate().before(object2.getStartDate()); } } public class randomName { ... Collections.sort(Database.arrayList, new customComparator); ... } I just started with Java so please forgive my ignorance :) Thanks in advance!! -Samuel

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• How to sort a list alphabetically and have additional lists sorted in the same order

  - by Carl

  I have 3 lists, each with equal elements: email addresses, salaries and IDs I'd like to sort the email addresses alphabetically and in some way sort the other 2 lists (salaries and IDs). E.g., Emails: [email protected] [email protected] Salaries: 50000 60000 IDs: 2 1 The puzzle: I'd like to sort Emails such that [email protected] is first and [email protected] is last and Salaries is 60000 then 50000 and IDs is 1 then 2. Additional detail: 1. Length of lists are the same and can be longer than two elements. 2. I will subsequently pass IDs to functions to retrieve further lists. Those lists won't need sorting as they will adopt the order of the IDs list.

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• Java App Engine - ranked counter

  - by Richard

  I understand the sharded counter, here: http://code.google.com/appengine/articles/sharding_counters.html The problem is that a simple counter will not work in my application. I am sorting my entities by a particular variable so I am returned not so much a count, but more of a rank. My current method is: SELECT COUNT(this) FROM Entity.class WHERE value <= ? Result + 1 is then the rank of the parameter in relation to the value variable in the persistent Entity objects. The limitation of this is the highest rank being returned is 1001 because count() can give a maximum of 1000. The reason I cannot store the rank on the Entity object is that the ranks are updated very often, and re-setting this rank variable would be much too costly. Any ideas on the best way to accomplish this?

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• Drupal Filefield won't upload javascript files?

  - by hfidgen

  Hiya, I've got a site where individual pages might require some javascript or CSS files hooked into their heads. I'm trying to keep everything client side when it comes to managing this process, rather than getting on the FTP and sorting everything out in the code so I need to be able to upload css and js files. I've got CCK filefield up and running, and it works with css files, but it refuses to upload .js files. It instead seems to view every .js as ".js.txt" and then the file appears on the server as thisismyfile.js.txt Not ideal... Does anyone know how to work around this. Is it a mime type problem with Drupal or the server, or is Drupal set up to avoid script uploads and n00b hack attacks. Once the files are uploaded I intend to use PHP mode on the page or node to call drupal_add_css and drupal_add_js.

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