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  • How to set width of textbox to be same as MaxLength in ASP.NET

    - by John Galt
    Is there a way I can limit the width of a textbox to be equal to the MaxLength property? In my case right now, the textbox control is placed in a table cell as in this snippet: <td class=TDSmallerBold style="width:90%"> <asp:textbox id="txtTitle" runat="server" CausesValidation="true" Text="Type a title here..be concise but descriptive. Include price." ToolTip="Describe the item with a short pithy title (most important keywords first). Include the price. The title you provide here will be the primary text found by search engines that index Zipeee content." MaxLength="60" Width="100%"> </asp:textbox> (I know I should not use HTML tables to control layout..another subject for sure) but is there a way to constrain the actual width to the max number of characters allowed in the typed box?

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  • adjust selected File to FileFilter in a JFileChooser

    - by amarillion
    I'm writing a diagram editor in java. This app has the option to export to various standard image formats such as .jpg, .png etc. When the user clicks File-Export, you get a JFileChooser which has a number of FileFilters in it, for .jpg, .png etc. Now here is my question: Is there a way to have the extension of the default adjust to the selected file filter? E.g. if the document is named "lolcat" then the default option should be "lolcat.png" when the png filter is selected, and when the user selects the jpg file filter, the default should change to "lolcat.jpg" automatically. Is this possible? How can I do it? edit: Based on the answer below, I wrote some code. But it doesn't quite work yet. I've added a propertyChangeListener to the FILE_FILTER_CHANGED_PROPERTY, but it seems that within this method getSelectedFile() returns null. Here is the code. package nl.helixsoft; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.io.File; import java.util.ArrayList; import java.util.List; import javax.swing.JButton; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.filechooser.FileFilter; public class JFileChooserTest { public class SimpleFileFilter extends FileFilter { private String desc; private List<String> extensions; private boolean showDirectories; /** * @param name example: "Data files" * @param glob example: "*.txt|*.csv" */ public SimpleFileFilter (String name, String globs) { extensions = new ArrayList<String>(); for (String glob : globs.split("\\|")) { if (!glob.startsWith("*.")) throw new IllegalArgumentException("expected list of globs like \"*.txt|*.csv\""); // cut off "*" // store only lower case (make comparison case insensitive) extensions.add (glob.substring(1).toLowerCase()); } desc = name + " (" + globs + ")"; } public SimpleFileFilter(String name, String globs, boolean showDirectories) { this(name, globs); this.showDirectories = showDirectories; } @Override public boolean accept(File file) { if(showDirectories && file.isDirectory()) { return true; } String fileName = file.toString().toLowerCase(); for (String extension : extensions) { if (fileName.endsWith (extension)) { return true; } } return false; } @Override public String getDescription() { return desc; } /** * @return includes '.' */ public String getFirstExtension() { return extensions.get(0); } } void export() { String documentTitle = "lolcat"; final JFileChooser jfc = new JFileChooser(); jfc.setDialogTitle("Export"); jfc.setDialogType(JFileChooser.SAVE_DIALOG); jfc.setSelectedFile(new File (documentTitle)); jfc.addChoosableFileFilter(new SimpleFileFilter("JPEG", "*.jpg")); jfc.addChoosableFileFilter(new SimpleFileFilter("PNG", "*.png")); jfc.addPropertyChangeListener(JFileChooser.FILE_FILTER_CHANGED_PROPERTY, new PropertyChangeListener() { public void propertyChange(PropertyChangeEvent arg0) { System.out.println ("Property changed"); String extold = null; String extnew = null; if (arg0.getOldValue() == null || !(arg0.getOldValue() instanceof SimpleFileFilter)) return; if (arg0.getNewValue() == null || !(arg0.getNewValue() instanceof SimpleFileFilter)) return; SimpleFileFilter oldValue = ((SimpleFileFilter)arg0.getOldValue()); SimpleFileFilter newValue = ((SimpleFileFilter)arg0.getNewValue()); extold = oldValue.getFirstExtension(); extnew = newValue.getFirstExtension(); String filename = "" + jfc.getSelectedFile(); System.out.println ("file: " + filename + " old: " + extold + ", new: " + extnew); if (filename.endsWith(extold)) { filename.replace(extold, extnew); } else { filename += extnew; } jfc.setSelectedFile(new File (filename)); } }); jfc.showDialog(frame, "export"); } JFrame frame; void run() { frame = new JFrame(); JButton btn = new JButton ("export"); frame.add (btn); btn.addActionListener (new ActionListener() { public void actionPerformed(ActionEvent ae) { export(); } }); frame.setSize (300, 300); frame.pack(); frame.setVisible(true); } public static void main(String[] args) { javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { JFileChooserTest x = new JFileChooserTest(); x.run(); } }); } }

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  • Storing Templates and Object-Oriented vs Relational Databases

    - by syrion
    I'm designing some custom blog software, and have run into a conundrum regarding database design. The software requires that there be multiple content types, each of which will require different entry forms and presentation templates. My initial instinct is to create these content types as objects, then serialize them and store them in the database as JSON or YAML, with the entry forms and templates as simple strings attached to the "contentTypes" table. This seems cumbersome, however. Are there established best practices for dealing with this design? Is this a use case where I should consider an object database? If I should be using an object database, which should I consider? I am currently working in Python and would prefer a capable Python library, but can move to Java if need be.

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  • mod_rewrite regex help

    - by Bathan
    HI guys. Im using mod_rewrite to do some redirects on a web site. I want to be able to do the following mySite.com/ - Goto Home mySite.com/foo - Goto redirect.php and redirect acordingly. My redirect rule was RewriteRule (^\w*$) redirect.php?url=$1 [NC] But im oviously missing something because when I go tomySite.com/ I get sent to redirect.php I need a regex that allow lower and upper case letters, as well as underscores but it has to ignore "empty" strings so when I go to mySite.com/ the index file is displayed. Any help? Thanks!

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  • How to define a query om a n-m table

    - by user559889
    Hi, I have some troubles defining a query. I have a Product and a Category table. A product can belong to multiple categories and vice versa so there is also a Product-Category table. Now I want to select all products that belong to a certain category. But if the user does not provide a category I want all products. I try to create a query using a join but this results in the product being selected multiple times if it belongs to multiple categories (in the case no specific category is queried). What kind of query do I have to create? Thanks

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  • jQuery fading in an element - not working exactly as i want it to...

    - by Nike
    Anybody see what's wrong? Doesn't seem to do anything. If i replace $(this, '.inner').stop(true, false).fadeIn(250); with $(.fadeInOnHover .inner').stop(true, false).fadeIn(250); then all the .inner elements on the page will fade in (which isn't really what i want, as i have ~10 of them). I know it's possible to achieve what i want to do, but i don't know how in this case. Thanks in advance :) <script type="text/javascript"> $(document).ready(function() { $('.fadeInOnHover .inner').css("display","none"); $('.fadeInOnHover').hover(function() { $(this, '.inner').stop(true, false).fadeIn(250); }).mouseout(function() { $(this, '.inner').stop(true, true).fadeOut(100); }); }); </script>

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  • WANT TO host Visual Studio Form Designer in my own application..

    - by this. __curious_geek
    Hi, I'm writing an application that lets the end use design a Form just the way Visual Studio lets you design a windows forms. I looked into visual studio forms designer articles in msdn and also studied open-source SharpDevelop editor. Both the examples host visual studio's windows forms designer to provide form-design service in their respective applications. My question is - Does it imply any licensing issue with Microsoft for directly hosting their Visual Studio Forms designer in my own application ? I don't want move ahead without proper and correct information. Can anybody here help me out if there's any licensing issues in case I want to host visual studio windows fomr designer in my own application. If there's any such licensing implication - then how does Sharp-Develop do this ?

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  • ActiveMQ - Removing queues programatically

    - by Eduardo Z.
    Fellow StackOverflowers, is there a way for me to remove a queue or a topic in ActiveMQ programatically? I am using ActiveMQ's standard persistency, and my application requires that, on startup, all new queues be dynamically re-created (unless there are messages stored in the queue, in which case, the queue should remain to exist). I am also creating all queues programatically through sessions. Is there an equivalent to that procedure, only to delete a queue? Querying and iterating through the existing queues would also be useful, but i haven't found a way to do that yet. Please help an ActiveMQ noob! =)

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  • filter to reverse lines of a text file

    - by Greg Hewgill
    I'm writing a small shell script that needs to reverse the lines of a text file. Is there a standard filter command to do this sort of thing? My specific application is that I'm getting a list of Git commit identifiers, and I want to process them in reverse order: git log --pretty=oneline work...master | grep -v DEBUG: | cut -d' ' -f1 | reverse The best I've come up with is to implement reverse like this: ... | cat -b | sort -rn | cut -f2- This uses cat to number every line, then sort to sort them in descending numeric order (which ends up reversing the whole file), then cut to remove the unneeded line number. The above works for my application, but may fail in the general case because cat -b only numbers nonblank lines. Is there a better, more general way to do this?

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  • Rabbitmq 2.2 not working on Snow Leopard (SSL errors)

    - by ebeland
    When I start rabbitmq, I see the following message. I have Activating RabbitMQ plugins ... WARNING Undefined function crypto:des3_cbc_decrypt/5 WARNING Undefined function crypto:start/0 WARNING Undefined function ssl:close/1 WARNING Undefined function ssl:controlling_process/2 WARNING Undefined function ssl:peercert/1 WARNING Undefined function ssl:peername/1 WARNING Undefined function ssl:recv/3 WARNING Undefined function ssl:send/2 WARNING Undefined function ssl:sockname/1 WARNING Undefined function ssl:ssl_accept/3 0 plugins activated: I followed the advice here to install openssl and recompile erlang with a --with-ssl path set: http://old.nabble.com/2.1.1%3A-no-such-file-or-directory-crypto.app-message-prevents-broker-from-starting-td30011026.html When I recompiled erlang, I used the following .configure: ./configure \ --prefix=/usr/local/erlang/R13B04 \ --enable-smp-support \ --enable-threads \ --enable-darwin-64bit \ --with-ssl=/usr/include/openssl It compiled fine. Then, just in case, I reinstalled rabbit from macports. I still get the error. Am I using the wrong path for --with-ssl? Help?

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  • How can I call model methods or properties from Django Admin?

    - by kg
    Is there a natural way to display model methods or properties in the Django admin site? In my case I have base statistics for a character that are part of the model, but other things such as status effects which affect the total calculation for that statistic: class Character(models.Model): base_dexterity = models.IntegerField(default=0) @property def dexterity(stat_name): total = self.base_dexterity total += sum(s.dexterity for s in self.status.all()]) return total It would be nice if I could display the total calculated statistic alongside the field to change the base statistic in the Change Character admin page, but it is not clear to me how to incorporate that information into the page.

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  • New asp "showat" attribute required inconsistently in VS2010. Why?

    - by Patrick Karcher
    When I generate code using T4 templates in Visual Studio 2010, I get the following error for each of my asp controls when I try to compile: Control "ddState" is missing required attribute "showat". I have never gotten this error in previous versions of .NET. Further, I don't get this error when I manually construct my pages either by dragging/dropping, nor do I get it when I type out the control text myself. When I generate code, I have to manually add showat="client" to my tag for the compiler to be happy. It was my understanding that I never had to explicitly specify this tag. The following: <asp:dropdownlist id="ddState" runat="server" showat="client" /> solves the problem. Why do I have to add this to generated code but not other times? (It's a VS-2010 webforms project, using VB, in case that makes a difference.)

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  • ESS/AucTeX/Sweave integration

    - by aL3xa
    I'm using GNU/Linux distro (Arch, if that's relevant), Emacs v23.2.1, ESS v5.9 and AucTeX v11.86. I want to setup AucTeX to recognize .Rnw files, so I can run LaTeX on .Rnw files with C-c C-c and get .dvi file automatically. I reckon it's quite manageable by editing .emacs file, but I still haven't got a firm grasp on Elisp. Yet another problem is quite annoying - somehow, LaTeX is not recognizing \usepackage{Sweave} in preambule, so I actually need to copy Sweave.sty file (in my case located in /usr/share/R/texmf/Sweave.sty) to directory where .Rnw file is located (and I'm getting more frustrated with the fact that this is common bug on Windows platforms!) My question boils down to two problems: how to make LaTeX recognize \usepackage{Sweave} (without copying Sweave.sty to "home" folder each time) how to setup AucTeX to compile .Rnw files to .dvi

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  • JavaScript distributed computing project

    - by Ben L.
    I made a website that does absolutely nothing, and I've proven to myself that people like to stay there - I've already logged 11+ hours worth of cumulative time on the page. My question is whether it would be possible (or practical) to use the website as a distributed computing site. My first impulse was to find out if there were any JavaScript distributed computing projects already active, so that I could put a piece of code on the page and be done. Unfortunately, all I could find was a big list of websites that thought it might be a cool idea. I'm thinking that I might want to start with something like integer factorization - in this case, RSA numbers. It would be easy for the server to check if an answer was correct (simply test for modulus equals zero), and also easy to implement. Is my idea feasible? Is there already a project out there that I can use?

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  • How to regex match a string of alnums and hyphens, but which doesn't begin or end with a hyphen?

    - by Shahar Evron
    I have some code validating a string of 1 to 32 characters, which may contain only alpha-numerics and hyphens ('-') but may not begin or end with a hyphen. I'm using PCRE regular expressions & PHP (albeit the PHP part is not really important in this case). Right now the pseudo-code looks like this: if (match("/^[\p{L}0-9][\p{L}0-9-]{0,31}$/u", string) and not match("/-$/", string)) print "success!" That is, I'm checking first that the string is of right contents, doesn't being with a '-' and is of the right length, and then I'm running another test to see that it doesn't end with a '-'. Any suggestions on merging this into a single PCRE regular expression? I've tried using look-ahead / look-behind assertions but couldn't get it to work.

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  • How to generate C# documentation to a CHM or HTML file?

    - by BrunoLM
    Is there a way to generate a readable document file from the documentation on the code directly from Visual Studio? (also considering 2010) If there isn't, what should I use to create a CHM or HTML file? Code example: /// <summary> /// Convert a number to string /// </summary> /// <param name="number">An integer number to be converted to string</param> /// <returns>Number as string</returns> /// <example> /// <code> /// var s = MyMethod(5); /// </code> /// </example> /// <exception cref="Exception">In case it can't convert</exception> /// <remarks> /// Whatever /// </remarks> public string MyMethod(int number) { return number.ToString(); }

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  • Find a name in a list if the name is spelt wrong

    - by Matt
    I've got a list of names which some code checks against to see if the person exists, and if so do some stuff.. My issue is that I want to handle the case of the name being entered incorrectly.. I.e. I have a list of names Bob Frank Tom Tim John If I type in Joohn, I want it to ask me if I meant John. If I type Tm, I get asked if I meant Tim, if I say no, it asks if i meant Tom.. Etc.. Has anyone done something like this before?

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  • Why does my JButton look differently of different computers?

    - by Roman
    I use JButtons in my application. They need to have different colors. First I used that btn.setBackground(col);. It works on my computer and on another computer my button just gray (not red, as it's supposed to be). Trying to solve this problem I decided to use images. I do it in the following way: tmp = new JButton(newIcon); Again, it works fine on my computer and on another computer I see just gray buttons. Does anybody have any ideas what can be the reason of the problem and how it can be solved? I heard it can be related to "look-and-feel of the native system". But I do not know what it means and what should I do if it is the case? Can anybody pleas, help me with that?

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  • Modifying records in my migration throws an authlogic error

    - by nfm
    I'm adding some columns to one of my database tables, and then populating those columns: def self.up add_column :contacts, :business_id, :integer add_column :contacts, :business_type, :string Contact.reset_column_information Contact.all.each do |contact| contact.update_attributes(:business_id => contact.client_id, :business_type => 'Client') end remove_column :contacts, :client_id end The line contact.update_attributes is causing the following Authlogic error: You must activate the Authlogic::Session::Base.controller with a controller object before creating objects I have no idea what is going on here - I'm not using a controller method to modify each row in the table. Nor am I creating new objects. The error doesn't occur if the contacts table is empty. I've had a google and it seems like this error can occur when you run your controller tests, and is fixed by adding before_filter :activate_authlogic to them, but this doesn't seem relevant in my case. Any ideas? I'm stumped.

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  • Design Patterns: What's the antithesis of Front Controller?

    - by Brian Lacy
    I'm familiar with the Front Controller pattern, in which all events/requests are processed through a single centralized controller. But what would you call it when you wish to keep the various parts of an application separate at the presentation layer as well? My first thought was "Facade" but it turns out that's something entirely different. In my particular case, I'm converting an application from a sprawling procedural mess to a clean MVC architecture, but it's a long-term process -- we need to keep things separated as much as possible to facilitate a slow integration with the rest of the system. Our application is web-based, built in PHP, so for instance, we have an "index.php" and an IndexController, a "account.php" and an AccountController, a "dashboard.php" and DashboardController, and so on.

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  • Disabling single line copy in Visual Studio

    - by erlando
    Is there anyway to disable the rather annoying feature that Visual Studio (2008 in my case) has of copying the line (with text on it) the cursor is on when CTRL-C is pressed and no selection is made? I know of the option to disable copying blank lines. But this is driving me crazy as well. ETA: I'm not looking to customize the keyboard shortcut. ETA-II: I am NOT looking for "Tools-Options-Text Editor-All Languages-Apply cut or copy to blank lines...".

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  • How do I handle a JSON request returning a String in JQuery?

    - by knt
    Hi all, New to json/jQuery so sorry if this has an obvious answer. I'm doing an ajax request in jQuery that's something like: $.ajax({ url: theURL, dataType: 'jsonp', type: 'get', success: function(data) { alert("it's there"); } }); The request asks whether a given object is in a database. If it is, it returns something of the format: { "text": "duck", "canonical_name": "duck", "language": { "id": "en" }} However, if the object isn't there, it returns: Not Found As in...literally that exact string, not in any kind of json format as far as I know. Is there any way I can get my ajax to detect this? Right now it doesn't even seem to be acknowledging that it got anything back in the latter case. The json code wasn't written by me. It can possibly be fixed if this is not the correct format and there's absolutely nothing I can do from my end to work with this, but I'd really like to try to find some kind of workaround if possible. Thanks very much!

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  • Multi-part template issue with Jinja2

    - by Alan Harris-Reid
    Hi, When creating templates I typically have 3 separate parts (header, body, footer) which I combine to pass a singe string to the web-server (CherryPy in this case). My first approach is as follows... from jinja2 import Environment, FileSystemLoader env = Environment(loader=FileSystemLoader('')) tmpl = env.get_template('Body.html') page_body = tmpl.render() tmpl = env.get_template('Header.html') page_header = tmpl.render() tmpl = env.get_template('Footer.html') page_footer = tmpl.render() page_code = page_header + page_body + page_footer but this contains repetitious code, so my next approach is... def render_template(html_file): from jinja2 import Environment, FileSystemLoader env = Environment(loader=FileSystemLoader('')) tmpl = env.get_template(html_file) return tmpl.render() page_header = render_template('Header.html') page_body = render_template('Body.html') page_footer = render_template('Footer.html) However, this means that each part is created in its own environment - can that be a problem? Are there any other downsides to this approach? I have chosen the 3-part approach over the child-template approach because I think it may be more flexible (and easier to follow), but I might be wrong. Anyone like to convince me that using header, body and footer blocks might be better? Any advice would be appreciated. Alan

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  • Windsor Container: How to specify a public property should not be filled by the container?

    - by George Mauer
    When Instantiating a class, Windsor by default treats all public properties of the class as optional dependencies and tries to satisfy them. In my case, this creates a rather complicated circular dependency which causes my application to hang. How can I explicitly tell Castle Windsor that it should not be trying to satisfy a public property? I assume there must be an attribute to that extent. I can't find it however so please let me know the appropriate namespace/assembly. If there is any way to do this without attributes (such as Xml Configuration or configuration via code) that would be preferable since the specific library where this is happening has to date not needed a dependency on castle.

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  • Using JavaScript eval to parse JSON

    - by Quandary
    Question: I'm using eval to parse a JSON return value from one of my WebMethods. I prefer not to add jquery-json because the transfer volume is already quite large. So I parse the JSON return value with eval. Now rumors go that this is insecure. Why ? Nobody can modify the JSOn return value unless they hack my server, in which case I would have a much larger problem anyway. And if they do it locally, JavaScript only executes in their browser. So I fail to see where the problem is. Can anybody shed some light on this, using this concrete example? function OnWebMethodSucceeded(JSONstrWebMethodReturnValue) { var result=eval('(' + JSONstrWebMethodReturnValue + ')') ... // Adding result.xy to a table }

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