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  • java: how to convert a file to utf8

    - by Enrique San Martín
    Hi, i have a file that have some non-utf8 caracters (like "ISO-8859-1"), and so i want to convert that file (or read) to UTF8 encoding, how i can do it? The code it's like this: File file = new File("some_file_with_non_utf8_characters.txt"); /* some code to convert the file to an utf8 file */ ... edit: Put an encoding example

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  • Business Logics on the client side

    - by Ivo Rossi
    Why do people say that business logics should be implemented on the server side code (e.g. EJB) and not on the client application code? The example that I have in mind is a business object validation on a EJB based architecture. Does it really have to be delegated to the EJB or is it ok to run it on the client before the object is sent to be server to be saved?

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  • Using System.DateTime in a C# Lambda expression gives an exception

    - by Samantha J
    I tried to implement a suggestion that came up in another question: Stackoverflow question Snippet here: public static class StatusExtensions { public static IHtmlString StatusBox<TModel>( this HtmlHelper<TModel> helper, Expression<Func<TModel, RowInfo>> ex ) { var createdEx = Expression.Lambda<Func<TModel, DateTime>>( Expression.Property(ex.Body, "Created"), ex.Parameters ); var modifiedEx = Expression.Lambda<Func<TModel, DateTime>>( Expression.Property(ex.Body, "Modified"), ex.Parameters ); var a = "a" + helper.HiddenFor(createdEx) + helper.HiddenFor(modifiedEx); return new HtmlString( "Some things here ..." + helper.HiddenFor(createdEx) + helper.HiddenFor(modifiedEx) ); } } When implemented I am getting the following exception which I don't really understand. The exception points to the line starting with "var createdEx =" System.ArgumentException was unhandled by user code Message=Expression of type 'System.Nullable`1[System.DateTime]' cannot be used for return type 'System.DateTime' Source=System.Core StackTrace: Can anyone help me out and suggest what I could do to resolve the exception?

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  • Nhibernate: mapping two different properties between the same 2 entities

    - by Carlos Decas
    I have a Class A: public class ClassA { public int ID {get; private set;} public string Code {get; private set;} public ClassB B {get; private set;} public IList<ClassB> ListB {get; private set;} } And a ClassB: public class ClassB { public int ID {get; private set;} public string Code {get; private set;} public ClassA A {get; private set;} //some other attributes... } And the Mappings: public ClassAMap() { Table("ClassA"); Id(classA => classA .ID, "ID").GeneratedBy.Identity(); Map(classA => classA.Code, "Code").Unique().Not.Nullable(); //HERE IS THE PROBLEM: -------- References(classA => classA.B,"IDClassB").Cascade.SaveUpdate(); //----- HasMany(classA => classA.ListB).Table("ClassB").KeyColumn("IDClassA").AsBag().Not.LazyLoad().Inverse().Cascade.AllDeleteOrphan(); } ClassB Mappings: public ClassBMap() { Table("ClassB"); Id(classB => classB.ID).GeneratedBy.Identity(); References(classB => classB.A, "IDClassA").ForeignKey("ID").Cascade.SaveUpdate(); } The mappings for ListB in classA worked ok, because at first the was only ListB property and not B, when i had to map B i tried this: References(classA => classA.B,"IDClassB"); The mapping test failed because B wasn't saved, so i did this: References(classA => classA.B,"IDClassB").Cascade.SaveUpdate(); This time B was saved, but by saving B, classA was inserted two times, by A.B and by B.A. How can i solve this problem? Why does it work for the ListB property and not for the B property? Thanks

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  • how to make the batch file wait until another batch file completes execution?

    - by Arunachalam
    how to make the batch file wait until another batch file completes execution? let me explain with an example. echo hi >r.txt echo some piece of code >>r.txt start ar.bat echo some piece of coe >>ar.txt i want the code after start ar.bat to execute after this batch file exits .. i have tried without start it works but i want to run it in a seperate window ..is there any function to check whether that window which is running ar.bat is present ?

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  • I am getting the wrong client IP address

    - by Vibin Jith
    I am running an ASP.NET application. The web server is located on the same system. In the code behind I just want to get the IP address of the requesting client. I am using this code: Request.UserHostAddress But I am getting a wrong address: 127.0.0.1. My system IP address is 198.162.0.27.

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  • java.sql.SQLException: database locked

    - by rajkumari
    Hello We are using sqllite056 jar in our code. While inserting into database in batch we are getting exception on line when we going to commit. Lines of Code <object of Connection> .commit(); <object of Connection>.setAutoCommit(true); Exception java.sql.SQLException: database locked

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  • jQuery: on focus, do customized focus on textarea

    - by evilReiko
    My Code: $('#myTextArea').one('focus', function() { $('#myTextArea')[0].selectionStart = 2; $('#myTextArea')[0].selectionEnd = 6; $('#myTextArea')[0].focus(); }); The code works fine, on focus (only once), it selects from index 2 to 6. The problem: since this function is called on focus, it does the custom focus, but then it calls focus AGAIN and I lose focus of the selected text. Any possible solution?

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  • GeSHi single like link

    - by justme
    Is it possible to instruct GeSHi (http://qbnz.com/highlighter/) to generate link to single line. For example if I show highlighted code on 'example.com/my-code' URL, I would like to be able to have link like: 'example.com/my-mode#line-69' or something like that...

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  • How to add ACTIVE DOMAIN user to Sharepoint group

    - by standley-nguyen
    Hi all. I got an exception when executing this snippet code SPSecurity.RunWithElevatedPrivileges(delegate() { using (SPSite site = new SPSite(siteUrl.Trim())) { using (SPWeb web = site.OpenWeb()) { try { web.AllowUnsafeUpdates = true; SPUser spUser = web.AllUsers[userName]; if (spUser != null) { SPGroup spGroup = web.Groups[groupName]; if (spGroup != null) spGroup.AddUser(spUser); } } catch (Exception ex) { this.TraceData(LogLevel.Error, "Error at function Named [AddUserToSPGroupWidget.AddUserToGroup] . With Error Message: " + ex.ToString()); } finally { web.AllowUnsafeUpdates = false; } } } }); PLease guide me. Thanks in advance.

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  • ASP.NET GridView issue with DataFormatString in a BoundField

    - by David
    I have a BoundField in a GridView whose datatype (in MSSQL) is time(7). The format is being displayed as: hh:mm:ss.xxxxxx I want to add a DataFormatString to this boundfield so that the field displays in the format: hh:mm:ss Here is a snippet of the .aspx file that I'm modifying: <asp:BoundField DataField="ProcTime" HeaderText="ProcTime" SortExpression="ProcTime" ApplyFormatInEditMode="true" HtmlEncode="true" DataFormatString="{0:F0}" /> I've tried many different format strings (t, T, d, D, m, etc) but it does not change the format of the boundfield. What am I missing?

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  • missing ';' before namespace when using boost 1.4.2

    - by Adam Haile
    Working on moving some C++ code from Linux over to Windows. The code uses boost 1.4.2, however it keeps failing out on building the boost modules. Basically, every boost hpp file that happens to contain "namespace boost" errors with: error C2143: syntax error : missing ';' before 'namespace' Any idea what could be causing this?

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  • .NET Dictionary as a Property

    - by Anand
    Can someone point me out to some C# code examples or provide some code, where a Dictionary has been used as a property for a Class. The examples I have seen so far don't cover all the aspects viz how to declare the dictionary as property, add, remove, and retrieve the elements from the dictionary.

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  • how to get varchar as byte[] using DataReader in Ado.Net?

    - by Krishna
    how to get varchar as byte[] data using DataReader in Ado.Net? We have tried the following code. if (!objDataReader.IsDBNull(i)) { long len = objDataReader.GetBytes(i, 0, null, 0, 0); byte[] buffer = new byte[len]; objDataReader.GetBytes(i, 0, buffer, 0, (int)len); } But the above code gives the error ("Unable to cast object of type 'System.String' to type 'System.Byte[]'.")

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  • Get Process ID of Program Started with C# Process.Start

    - by ThaKidd
    Thanks in advance of all of your help! I am currently developing a program in C# 2010 that launches PLink (Putty) to create a SSH Tunnel. I am trying to make the program able to keep track of each tunnel that is open so a user may terminate those instances that are no longer needed. I am currently using System.Diagnostics.Process.Start to run PLink (currently Putty being used). I need to determine the PID of each plink program when it is launched so a user can terminate it at will. Question is how to do that and am I using the right .Net name space or is there something better? Code snippet: private void btnSSHTest_Click(object sender, EventArgs e) { String puttyConString; puttyConString = "-ssh -P " + cboSSHVersion.SelectedText + " -" + txtSSHPort.Text + " -pw " + txtSSHPassword.Text + " " + txtSSHUsername.Text + "@" + txtSSHHostname.Text; Process.Start("C:\\Program Files (x86)\\Putty\\putty.exe", puttyConString); }

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  • Methodology to understanding JQuery plugin & API's developed by third parties

    - by Taoist
    I have a question about third party created JQuery plug ins and API's and the methodology for understanding them. Recently I downloaded the JQuery Masonry/Infinite scroll plug in and I couldn't figure out how to configure it based on the instructions. So I downloaded a fully developed demo, then manually deleted everything that wouldn't break the functionality. The code that was left allowed me to understand the plug in much greater detail than the documentation. I'm now having a similar issue with a plug in called JQuery knob. http://anthonyterrien.com/knob/ If you look at the JQuery Knob readme file it says this is working code: <input type="text" value="75" class="dial"> $(function() { $('.dial') .trigger( 'configure', { "min":10, "max":40, "fgColor":"#FF0000", "skin":"tron", "cursor":true } ); }); But as far as I can tell it isn't at all. The read me also says the Plug in uses Canvas. I am wondering if I am suppose to wrap this code in a canvas context or if this functionality is already part of the plug in. I know this kind of "question" might not fit in here but I'm a bit confused on the assumptions around reading these kinds of documentation and thought I would post the query regardless. Curious to see if this is due to my "newbi" programming experience or if this is something seasoned coders also fight with. Thank you. Edit In response to Tyanna's reply. I modified the code and it still doesn't work. I posted it below. I made sure that I checked the Google Console to insure the basics were taken care of, such as not getting a read-error on the library. <!DOCTYPE html> <meta charset="UTF-8"> <title>knob</title> <link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/themes/hot-sneaks/jquery-ui.css" type="text/css" /> <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.js" charset="utf-8"></script> <script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.21/jquery-ui.min.js"></script> <script src="js/jquery.knob.js"></script> <div id="button1">test </div> <script> $(function() { $("#button1").click(function () { $('.dial').trigger( 'configure', { "min":10, "max":40, "fgColor":"#FF0000", "skin":"tron", "cursor":true } ); }); }); </script>

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  • Move options between multiple lists

    - by Martha
    We currently have a form with the standard multi-select functionality of "here are the available options, here are the selected options, here are some buttons to move stuff back and forth." However, the client now wants the ability to not just select certain items, but to also categorize them. For example, given a list of books, they want to not just select the ones they own, but also the ones they've read, the ones they would like to read, and the ones they've heard about. (All examples fictional.) Thankfully, a selected item can only be in one category at a time. I can find many examples of moving items between listboxes, but not a single one for moving items between multiple listboxes. To add to the complication, the form needs to have two sets of list+categories, e.g. a list of movies that need to be categorized in addition to the aforementioned books. EDIT: Having now actually sat down to try to code the non-javascripty bits, I need to revise my question, because I realized that multiple select lists won't really work from the "how do I inform the server about all this lovely new information" standpoint. So the html code is now a pseudo-listbox, i.e. an unordered list (ul) displayed in a box with a scrollbar, and each list item (<li>) has a set of five radio buttons (unselected/own/read/like/heard). My task is still roughly the same: how to take this one list and make it easy to categorize the items, in such a way that the user can tell at a glance what is in what category. (The pseudo-listbox has some of the same disadvantages as a multi-select listbox, namely it's hard to tell what's selected if the list is long enough to scroll.) The dream solution would be a drag-and-drop type thing, but at this point even buttons would be OK. Another modification (a good one) is that the client has revised the lists, so the longest is now "only" 62 items long (instead of the many hundreds they had before). The categories will still mostly contain zero, one, or two selected items, possibly a couple more if the user was overzealous. As far as OS and stuff, the site is in classic asp (quit snickering!), the server-side code is VBScript, and so far we've avoided the various Javascript libraries by the simple expedient of almost never using client-side scripting. This one form for this one client is currently the big exception. Give 'em an inch and they want a mile... Oh, and I have to add: I suck at Javascript, or really at any C-descendant language. Curly braces give me hives. I'd really, really like something I can just copy & paste into my page, maybe tweak some variable names, and never look at it again. A girl can dream, can't she? :) [existing code deleted because it's largely irrelevant.]

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  • I want multipart/alternative; ActionMailer only sending text/html

    - by macek
    I'm following the Ruby on Rails Guide: ActionMailer Basics Section 2.7 Snippet: Action Mailer will automatically send multipart emails if you have different templates for the same action. So, for our UserMailer example, if you have welcome_email.text.plain.erb and welcome_email.text.html.erb in app/views/user_mailer, Action Mailer will automatically send a multipart email with the HTML and text versions setup as different parts. Well, I have both: app/views/user_mailer/welcome_mail.text.html.erb app/views/user_mailer/welcome_mail.text.plain.erb app/models/user_mailer.rb class UserMailer < ActionMailer::Base def welcome_mail(user) recipients user.email from "[email protected]" subject "Thanks for registering" body :user => user end end Any luck?

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  • Customer Display OR Pole Display

    - by nwaynge
    hi, I do also want to know how can i Display Text on Pole Display. I write the code with VB.net 2008. Sample Code that i write is : If SerialPort1.IsOpen = False Then SerialPort1.Open() SerialPort1.Write("\r\n" & RichTextBox1.Text & vbCr, 0, RichTextBox1.TextLength) System.Threading.Thread.Sleep(1000) If SerialPort1.IsOpen = True Then SerialPort1.Close() I got no errors but can't display on Pole Display. Please help me. Regards, Nway Nge

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  • Dynamic classloading fails on runtime

    - by Henrik Paul
    I have the following snippet of java code: final Class<?> junitCoreClass = AccessController.doPrivileged( new PrivilegedAction<URLClassLoader>() { @Override public URLClassLoader run() { return new URLClassLoader(new URL[] { junitJarUrl }); } }).loadClass("org.junit.runner.JUnitCore"); System.out.println(junitCoreClass.getName()); final JUnitCore junitCore = (JUnitCore) junitCoreClass.newInstance(); This compiles fine. But when I try to run it, something weird happens; a java.lang.NoClassDefFoundError is thrown on that last line, referring to the class just loaded. The weird part is, the println prints the exact class name. I checked that if I keep the reference as an Object and manipulate it only through reflection, everything's fine, so the offending piece of code must be the explicit cast. Can someone explain to me why this happens, and also tell me how I can achieve what I'm trying to do?

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  • JavaScript or Qt way to update a select box value?

    - by Pirate for Profit
    So I have the following HTML and am trying to change which item is selected. <select name="coolselectbox"> <option value="default" selected="selected">---</option> <option value="something">Something</option> <option value="something-else">Something Else</option> </select> Here's what I've tried: QWebElement defaultOpt = this->page()->mainFrame()->findFirstElement("option[value=default]"); QWebelement somethingOpt = this->page()->mainFrame()->findFirstElement("option[value=something]"); defaultOpt.removeAttribute("selected"); somethingOpt.setAttribute("selected", "selected"); And then also: QWebElement selectBox = this->page()->mainFrame()->findFirstElement("select[name=coolselectbox]"); selectBox.setAttribute("value", "something-else"); However neither of these seems to get the job done. Does anyone know a Qt solution, or is there perhaps some JavaScript snippet I can run to do this?

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