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• Why setValue at not working on Jtable?

  - by Nitz

  Hey Guys I am doing project on java. In one of the class, I am working on jtable. Now what i am doing is, In the table data will be loaded from the database. Now i want to change some value at some exact row and column. so for that i am using jtable's setValue function. which is like this.... grayCardTbl.setValueAt(Float.valueOf(String.valueOf(pdiff)),1,4); I have checked the "pdiff" variable, it is perfect. i had total 5 columns and 10 rows. So now problem with rowindex and column index. and after this i have also refresh the table. but still it is not reflecting on table.

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• Search HTML Table with JQuery

  - by heffaklump

  I have a table and need a specific column in a specific row. <tr></tr> <tr> <td></td> <td></td> <td class="important_column"><a href="/bla/blah/link">IMPORTANT INFO</a></td> <td></td> <td class="need_link_here"><a href="/I/WANT/THIS/LINK/">link</a></td> </tr> <tr></tr> So if the link text in "important_column" equals the thing im looking for. Get the link in "need link_here" column. How to do in JQuery?

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• double slash apache configuration

  - by VP

  Hi, i'm deploying a ror application and now i have to rewrite the url (in apache) to add a prefix www to the url add / to the end of the url So i took the following approach: RewriteCond %{REQUEST_URI} ^/[^\.]+[^/]$ RewriteRule ^(.*)$ http://%{HTTP_HOST}/$1/ [R=301,L] RewriteCond %{HTTP_HOST} ^foo\.com RewriteRule ^(.*)$ http://www.foo.com/$1 [R=301,L] The problem is that it is appending two trailing slash to my url So for example a resource /question/ask are becoming: http://foo.com//question/ask I tried to add the following Rule before all my Rewrite rules to try to remove the double //: RewriteCond %{REQUEST_URI} ^// RewriteRule ([^/]*)/+(.*) http://www.foo.com/$1/$2 [R=301,L] but it didnt work.. any idea to rip off all extras "//" added to the url?

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• Is there an easier way to typecast with unknown types?

  - by Adam S

  Hi all. I am writing a function to recurse my XAML and add all the controls to a hashtable, with their names being the keys. Unfortunately it seems like I have to go through and list every possible type: void Recurse_Controls(object start) { string start_type = start.GetType().ToString(); if (start_type == "StackPanel") { ControlsByName.Add(((StackPanel)start).Name, start); foreach (object item in ((StackPanel)start).Children) { Recurse_Controls(item); } } if (start_type == "Grid") { ControlsByName.Add(((Grid)start).Name, start); foreach (object item in ((Grid)start).Children) { Recurse_Controls(item); } } } Is there a simpler way of doing this?

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• Jpa subclass mapping

  - by Roy Chan

  I am making a POS like system. I wonder how to map subclass using JPA (this is for my DAO). Product class has product details and OrderProduct class has information about the Product and details about the order. @Entity @Table(name="products") public class Product implements Serializable{ @Id @Column(name="id") @GeneratedValue(strategy = GenerationType.AUTO public int getId(){ return id;} /** Other get/set methods */ } @Entity @Table(name="order_products") public class OrderProduct extends Product{ @Id @Column(name="id") @GeneratedValue(strategy = GenerationType.AUTO) public int getId(){ return id;} /** Other get/set methods */ } I got complain about duplicate @Id. But OrderProduct class really need another id than the product one. How should I map this? DB is something like this Table products id int name varchar(32) Table order_product id int quantity int productid int fk referencing product table Would @IdClass or @AttributeOverride help?

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• How do I save a transient object that already exists in an NHibernate session?

  - by Daniel T.

  I have a Store that contains a list of Products: var store = new Store(); store.Products.Add(new Product{ Id = 1, Name = "Apples" }; store.Products.Add(new Product{ Id = 2, Name = "Oranges" }; Database.Save(store); Now, I want to edit one of the Products, but with a transient entity. This will be, for example, data from a web browser: // this is what I get from the web browser, this product should // edit the one that's already in the database that has the same Id var product = new Product{ Id = 2, Name = "Mandarin Oranges" }; store.Products.Add(product); Database.Save(store); However, trying to do it this way gives me an error: a different object with the same identifier value was already associated with the session How do I get around this problem?

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• Question about mysql indexes on low to medium cardinality columns

  - by Kevin J

  I have a general question about the way that database indexing works, particularly in mysql. Let's say I have a table with a million rows with a column "ClientID" that is distributed relatively equally among 30 values. Thus, this column is very low cardinality (30) relative to the primary key (1 million). Now, I understand that you shouldn't create indexes on low cardinality fields. However, in this case, queries are only ever done with one of the 30 clientIDs. Thus, wouldn't creating an index on ClientID be helpful, as the search space is automatically reduced to 1/30th what it normally would be? Or is my understanding of how the index works flawed? Thanks

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• Nested joins hide table names

  - by Sergio

  Hi: I have three tables: Suppliers, Parts and Types. I need to join all of them while discriminating columns with the same name (say, "id") in the three tables. I would like to successfully run this query: CREATE VIEW Everything AS SELECT Suppliers.name as supplier, Parts.id, Parts.description, Types.typedesc as type FROM Suppliers JOIN (Parts JOIN Types ON Parts.type_id = Types.id) ON Suppliers.id = Parts.supplier_id; My DBMS (sqlite) complains that "there is not such a column (Parts.id)". I guess it forgets table names once the JOIN is done but then how can I refer to the column id that belongs to the table Parts?

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• Condensing multiple else if statements, referencing them from a table?

  - by Haskella

  Hi I'm about to type some 500 else if statements into my code (PHP) which have the exact same coding each: if (color=White); rgb = 255-255-255; print rgb; else if (color=Black); rgb = 0-0-0; print rgb; else if (color=Red); rgb = 255-0-0; print rgb; else if (color=Blue); rgb = 0-0-255; print rgb; [the list keeps going] I also (luckily) have a table that displays the color in the first column and rgb value in the next column for 500 of them... how do I use this to save time typing all those else if statements? Some how I have to reference the table file (made in excel, I'm guessing I'll have to save it as .csv?)

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• Where do I put inline script in head with Zend Framework?

  - by Joel

  I'm reading the manual here: http://zendframework.com/manual/en/zend.view.helpers.html but I'm still confused. I have a script in my head that I'm converting to the layout/view for the Zend MVC: <script type="text/javascript"> var embedCode = '<object data="http://example.com" type="application/x-shockwave-flash" height="385" width="475"><param name="src" value="http://example.com" /><param name="allowfullscreen" value="true" /></object>' </script> I first tried to add it is an external file like this (in layout): $this->headScript()->appendFile('js/embeddedVideo.js')->appendScript($onloadScript); <head> <?php echo $this->headScript(); ?> </head> Didn't really work, but anyway, I'm wanting to just add the script and not add it as an external file. How do I do that? Thanks!

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• Turning A Stacked List into workable data

  - by BoSox

  In Excel I have a list of names that in the cell appear stacked, and I want each name in its own column. I was thinking Python may be a good way to do this? Example: Joe Smith John Hawk Mike Green Lauren Smith One cell will look exactly like that, with each name on its line within the cell but all of the names contained in the cell. I have 50 cells each with 1-20 stacked names and I want to put each name in its own cell on a given row. So, in my example all of those names would occupy the same row but each would have their own column. Any ideas?

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• .NET Hashtable clone

  - by thelost

  Given the following code: Hashtable main = new Hashtable(); Hashtable inner = new Hashtable(); ArrayList innerList = new ArrayList(); innerList.Add(1); inner.Add("list", innerList); main.Add("inner", inner); Hashtable second = (Hashtable)main.Clone(); ((ArrayList)((Hashtable)second["inner"])["list"])[0] = 2; Why does the value within the array change from 1 to 2 in the "main" Hashtable, as the change was made on a clone ?

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• How to virtually delete data from multiple tables that are linked by a foreign key ?

  - by Shantanu Gupta

  I am using Sql Server 2005 This is a part of my database diagram. I want to perform deletion on my database which will start from tblDomain up tp tblSubTopics. Consider that each table has IsDeleted column which has to be marked true if request was made to delete data. But that data shoud remain their physically. Tables which will have IsDeleted Column are tblDomain tblSubject tblTopic tblSubTopic Now I want, if a user marks one domain as deleted then all the refrence field should also get marked as deleted. i.e. 1 domain is related to 5 subjects, those 5 subjects are related to 25 topics, those 25 topics are related to 500 subtopics and so on. Then how should i mark all these fileds as Deleted. ?

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• How do you post content to a specific template position?

  - by ?????

  I can't figure this out. I purchased a template / theme from RocketTheme, but I can't figure out how to add content at a specific position. The templates have "module positions" that collapse. I'd like to add some content at one of the module positions. If I add articles, they seem to go into "mainbody". But I'd like to have content in other areas of the template. How do I take some text, images, or other content, and get them to display in these other positions (i.e., TOP-A, or FEATURE-A, etc)?

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• SQL Server Import table keeping default values

  - by Chrissi

  I am importing a table from one database to another in SQL Server 2008 by right-clicking the target database and choosing Tasks Import Data... When I import the table I get the column names and types and all the data fine, but I lose the primary key, identity specifications and all the default values that were set in the source table. So now I have to set all the default values for each column again manually. Is there any way to get the default values with the import, or even after with a Query? I am VERY new to this and flailing in the dark, so forgive me if this is a really stupid question...

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• Shortcut for adding to List in a HashMap

  - by Damo

  I often have a need to take a list of objects and group them into a Map based on a value contained in the object. Eg. take a list of Users and group by Country. My code for this usually looks like: Map<String, List<User>> usersByCountry = new HashMap<String, List<User>>(); for(User user : listOfUsers) { if(usersByCountry.containsKey(user.getCountry())) { //Add to existing list usersByCountry.get(user.getCountry()).add(user); } else { //Create new list List<User> users = new ArrayList<User>(1); users.add(user); usersByCountry.put(user.getCountry(), users); } } However I can't help thinking that this is awkward and some guru has a better approach. The closest I can see so far is the MultiMap from Google Collections. Are there any standard approaches? Thanks!

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• C# GridView dynamically built columns with textboxes ontextchanged

  - by tnriverfish

  My page is a bulk order form that has many products and various size options. I've got a gridview that has a 3 static columns with labels. There are then some dynamically built columns. Each of the dynamically built columns have a textbox in them. The textbox is for quantity. Trying to either update the server with the quantity entered each time a textbox is changed (possibly ontextchanged event) or loop though each of the rows column by column and gather all the items that have a quantity and process those items and their quantities all at once (via button onclick). If I put the process that builds the GridView behind a if(!Page.IsPostBack) then the when a textchanged event fires the gridview only gets the static fields and the dynamic ones are gone. If I remove the if(!Page.IsPostBack) the process to gather and build the page is too heavy on processing and takes too long to render the page again. Some advice would be appreciated. Thanks

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• How to calculate the correct image size in out pdf using itextsharp ?

  - by MK

  I' am trying to add an image to a pdf using itextsharp, regardless of the image size it always appears to be mapped to a different greater size inside the pdf ? The image I add is 624x500 pixel (DPI:72): And here is a screen of the output pdf: And here is how I created the document: Document document = new Document(); System.IO.MemoryStream stream = new MemoryStream(); PdfWriter writer = PdfWriter.GetInstance(document, stream); document.Open(); System.Drawing.Image pngImage = System.Drawing.Image.FromFile("test.png"); Image pdfImage = Image.GetInstance(pngImage, System.Drawing.Imaging.ImageFormat.Png); document.Add(pdfImage); document.Close(); byte[] buffer = stream.GetBuffer(); FileStream fs = new FileStream("test.pdf", FileMode.Create); fs.Write(buffer, 0, buffer.Length); fs.Close(); Any idea why on how to calculate the correct size ?

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• What is the simplest method to fill the area under a geom_freqpoly line?

  - by mattrepl

  The x-axis is time broken up into time intervals. There is an interval column in the data frame that specifies the time for each row. The column is a factor, where each interval is a different factor level. Plotting a histogram or line using geom_histogram and geom_freqpoly works great, but I'd like to have a line, like that provided by geom_freqpoly, with the area filled. Currently I'm using geom_freqpoly like this: ggplot(quake.data, aes(interval, fill=tweet.type)) + geom_freqpoly(aes(group = tweet.type, colour = tweet.type)) + opts(axis.text.x=theme_text(angle=-60, hjust=0, size = 6)) I would prefer to have a filled area, such as provided by geom_density, but without smoothing the line: UPDATE: The geom_area has been suggested, is there any way to use a ggplot2-generated statistic, such as ..count.., for the geom_area's y-values? Or, does the count aggregation need to occur prior to using ggplot2?

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• Implement subitem in SQLite

  - by Mohit Deshpande

  How could I implement a sub item where the item would have a parent to that of the same item. For example, I have a database that holds tasks/todos. Each todo has a title(TEXT), completed(INTEGER [1 if true, 0 if false]), and due date(TEXT) column. I would like to add functionality to have subtasks, where a task could possibly have a parent task. How would I implement this in SQLite for Android? NOT IN SQL! So no foreign keys (triggers are allow, though)! Could I just have a separate table (subtask) and have a foreign key trigger to link subtask(INTEGER parent) to task(INTEGER PRIMARY KEY AUTOINCREMENT _id)? Or should I add a column to my original task table(INTEGER parent)? How could I implement this?

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• Dojo How to ColorPalette + TooltipDialog + DropDownButton

  - by portoalet

  I am trying to add a ColorPalette into a TooltipDialog, which in turn is contained inside DropDownButton (dojo 1.3.1) Code: var paramsContent = new dijit.layout.ContentPane(); var colorPalette = new dijit.ColorPalette(); var tooltipThematic = new dijit.TooltipDialog({content: paramsContent}); var colorField = new dijit.form.DropDownButton( {label: 'Select Color', dropDown: tooltipThematic } ); How can I add the colorPalette into tooltipThematic? I did var tooltipThematic = new dijit.TooltipDialog(new dijit.ColorPalette()) but then I got this message: Already registered widget (error message on 1.0) http://o.dojotoolkit.org/forum/dijit-dijit-0-9/dijit-support/already-registered-widget-error-message How can I add the ColorPalette into the TooltipDialog?

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• Custom Collection Implementing IEnumerable

  - by Burnzy

  I know that technically, an Interface is used for reading and not writting or editing however, I want to add an add and addrange function to the following class, here is what I currently have which is not working public class HrefCollection : IEnumerable<Href> { private IEnumerable<Href> hrefs; public IEnumerable<Href> Add( Href href ) { yield return href; } public IEnumerable<Href> AddRange( List<Href> hrefs ) { foreach( Href href in hrefs ) { yield return href; } } public IEnumerator<Href> GetEnumerator() { return hrefs.GetEnumerator(); } System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { return hrefs.GetEnumerator(); } } I'm not quite sure how to associate the yield return with the private list. Thanks for your help!

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• Can mono produce valid xhtml?

  - by z-boss

  I installed Mono and MonoDevelop 2.2 on my Windows PC. Created a default C# ASP.NET Web Application project. Here's the Default.aspx it created: <%@ Page Language="C#" Inherits="test.Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head runat="server"> <title>Default</title> </head> <body> <form id="form1" runat="server"> <asp:Button id="button1" runat="server" Text="Click me!" OnClick="button1Clicked" /> </form> </body> </html> When I run it it feeds this html to the browser: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head><title> Default </title></head> <body> <form name="form1" method="post" action="Default.aspx" id="form1"> <div> <input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKMTQ2OTkzNDMyMWRkjWseIg+2HCgaNiY+XHmVKEq/CFg=" /> </div> <div> <input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWAgLB5qLABwKs34rGBvJAYc3UJn3AcjSPjq8DVpMxclAk" /> </div> <input type="submit" name="button1" value="Click me!" id="button1" /> </form> </body> </html> XHTML validation fails with 3 errors: 1. Line 3, Column 1: Missing xmlns attribute for element html. The value should be: http://www.w3.org/1999/xhtml 2. Line 8, Column 13: there is no attribute "name" 3. Line 17, Column 71: document type does not allow element "input" here; missing one of "p", "h1", "h2", "h3", "h4", "h5", "h6", "div", "pre", "address", "fieldset", "ins", "del" start-tag Is there some setting I'm missing?

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• Edit HTML template on Blogger website

  - by HKK

  This is a question about the website www.blogger.com. I am trying to modify my active template like this: I want to add a github ribbon to my template page, like the ones seen here: https://github.com/blog/273-github-ribbons I have tried pasting in the templates in the head tag and in the body tag, but in both cases I get error messages like this from the blogger site: Is it possible to add such a ribbon to a blogger site by editing the template html, and in that case, where is the correct place to paste in the code snippet?

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• R: How can I use apply on rows of a data.frame and get out $column_name?

  - by John

  I'm trying to access $a using the following example: df<-data.frame(a=c("x","x","y","y"),b=c(1,2,3,4)) > df a b 1 x 1 2 x 2 3 y 3 4 y 4 test_fun <- function (data.frame_in) { print (data.frame_in[1]) } I can now access $a if I use an index for the first column: apply(df, 1, test_fun) a "x" a "x" a "y" a "y" [1] "x" "x" "y" "y" But I cannot access column $a with the $ notation: error: "$ operator is invalid for atomic vectors" test_fun_2 <- function (data.frame_in) { print (data.frame_in$a) } >apply(df, 1, test_fun_2) Error in data.frame_in$a : $ operator is invalid for atomic vectors Is this not possible?

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