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  • How to use Eclipse's Display View for Debug?

    - by jzd
    At the link below it explains that the "display view allows you to manipulate live code in a scrapbook type fashion (see Figure 8). To manipulate a variable, simply type the name of the variable in the Display view, and you'll be greeted with a familiar content assist." http://www.ibm.com/developerworks/library/os-ecbug/ However, I am having trouble getting it to work. I have the view open but all the buttons are disabled. I have tried putting code in the view, selecting code in the view, selecting code in other views, while running and while not running debug, but the only button that is ever enabled on the view is "clear console". Suggestions on what I am doing wrong?

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  • How to override the attr_protected?

    - by KandadaBoggu
    I have STI implementation as follows: class Automobile < ActiveRecord::Base end class Car < Automobile end class Truck < Automobile end class User < ActiveRecord::Base has_many :automobiles accepts_nested_attributes_for :automobiles end I am creating a list of automobiles for a user. For each automobile, the UI sets the type field and the properties associated with the automobile.While form submission, the type field is ignored as it is a protected attribute. How do I work around this issue? Is there a declarative way to unprotect a protected attribute?

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  • Can you use regular expressions in struts-config.xml?

    - by rquinn
    I'm trying to route these two url's to different Actions. We are using Struts 1.2: /abc-def/products /abc-def I tried putting this action first: <action path="/abc*/products" type="com.business.exampleAction"> <forward name="success" path="/go"/> </action> and then this one after: <action path="/abc*" type="com.business.differentExampleAction"> <forward name="success" path="/goElsewhere"/> </action> but it always goes to the second action (differentExampleAction in this case). I've tried various iterations for the , like . or (.*), but haven't found anything that actually works yet. From what I've read, it seems like the only regular-expression-like characters allowed in struts-config are the wildcard symbols (* and **), but I hope I am wrong.

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  • How do you optimize database performance when providing results for autocomplete/iterative search?

    - by Howiecamp
    Note: In this question I'm using the term "autocomplete" (or "iterative search") to refer to returning search-as-you-type results, e.g. like Google Search gives you. Also my question is not specific to web applications vs. fat client apps. How are SQL SELECT queries normally constructed to provide decent performance for this type of query, especially over arbitrarily large data sets? In the case where the search will only query based on the first n characters (easiest case) am I still issuing a new SELECT result FROM sometable WHERE entry LIKE... on each keypress. Even with various forms of caching this seems like it might result in poor performance. In cases where you want your search string to return results with prefix matches, substring matches, etc. it's an even more difficult problem. Looking at a case of searching a list of contacts, you might return results that match FirstName + LastName, LastName + FirstName, or any other substring.

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  • Simple Hide/Expand with Javascript

    - by user478419
    I have created a simple expand/hide test script: <html> <head> <script type="type/javascript"><!-- function showHide(elementid){ if (document.getElementById(elementid).style.display == 'none'){ document.getElementById(elementid).style.display = ''; } else { document.getElementById(elementid).style.display = 'none'; } } //--> </script> </head> <body> <div><a href="javascript:showHide('div_1035677');">more...</a></div> <div id="div_1035677" style="display:none"> HIDDEN CONTENT </div> </body> </html> I get an error message that I can't make any sense of (Object expected on line one). I don't see any errors in the above code. :-(

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  • HTML Text writer

    - by user339160
    In my project , i have created a custom control which inherits from label. My aim is to add 2 links in this . I need to use the same label to render these two links.i tried the bellow code only the first link is loading ,not the second .Please help my sample code looks like writer.RenderBeginTag(HtmlTextWriterTag.Link); writer.AddAttribute(HtmlTextWriterAttribute.Href, string.Concat(Path 1)); writer.AddAttribute(HtmlTextWriterAttribute.Type, "text/css"); writer.AddAttribute(HtmlTextWriterAttribute.Rel, "stylesheet"); writer.RenderEndTag(); writer.RenderBeginTag(HtmlTextWriterTag.Link); writer.AddAttribute(HtmlTextWriterAttribute.Href, string.Concat(Path 2 )); writer.AddAttribute(HtmlTextWriterAttribute.Type, "text/css"); writer.AddAttribute(HtmlTextWriterAttribute.Rel, "stylesheet"); writer.RenderEndTag();

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  • LINQ - group specific types of classes

    - by Nelson
    This question is similar to http://stackoverflow.com/questions/2835192/linq-group-one-type-of-item but handled in a more generic way. I have a List that has various derived classes. I may have something like this: List<BaseClass> list = new List<BaseClass>() { new Class1(1), new Class2(1), new Class1(2), new Class3(1), new Class2(2), new Class4(1), new Class3(2) }; I am trying to use LINQ to semi-sort the list so that the natural order is maintained EXCEPT for certain classes which have base.GroupThisType == true. All classes with GroupThisType should be grouped together at the place that the first class of the same type occurs. Here is what the output should be like: List<BaseClass> list = new List<BaseClass>() { new Class1(1), new Class1(2), new Class2(1), new Class3(1), new Class3(2) new Class2(2), new Class4(1), };

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  • How to Detect Trusted Connection in Crystal Reports using VB.NET?

    - by Michael
    I have some Crystal Reports connecting to a Sql Server db that I would like to detect whether the connection is trusted or whether I need to supply the log on info (reports are not supplied by me so I can't control the connect method). If I just blindly supply login credentials, it won't connect if it is a trusted connection. The following does not work: oRpt = oCR.OpenReport("C:\MyReport.rpt") if oRpt.Database.Tables(1).ConnectionProperties.Item("Integrated Security") = True then 'trusted connection else 'supply login credentials end if It gives the following error: Operator '=' is not defined for type 'IConnectionProperty' and type 'Boolean'. I cannot find how create a construct in vb.net for IConnectionProperty. I can't find any documents from Crystal that explain it. I am using Crystal Reports XI - Developer

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  • j2me or android file upload to jsp

    - by user313613
    hi i new to mobile development i like to upload the file from blackberry and android how to develop the mobile side to this jsp page. please do reply me thanks here i mention the jsp file from roseindia.net. <%@ page import="java.io.*" % <% //to get the content type information from JSP Request Header String contentType = request.getContentType(); //here we are checking the content type is not equal to Null and as well as the passed data from mulitpart/form-data is greater than or equal to 0 if ((contentType != null) && (contentType.indexOf("multipart/form-data") = 0)) { DataInputStream in = new DataInputStream(request. getInputStream()); //we are taking the length of Content type data int formDataLength = request.getContentLength(); byte dataBytes[] = new byte[formDataLength]; int byteRead = 0; int totalBytesRead = 0; //this loop converting the uploaded file into byte code while (totalBytesRead < formDataLength) { byteRead = in.read(dataBytes, totalBytesRead, formDataLength); totalBytesRead += byteRead; } String file = new String(dataBytes); //for saving the file name String saveFile = file.substring(file.indexOf("filename=\"") + 10); saveFile = saveFile.substring(0, saveFile.indexOf("\n")); saveFile = saveFile.substring(saveFile.lastIndexOf("\\") + 1,saveFile.indexOf("\"")); int lastIndex = contentType.lastIndexOf("="); String boundary = contentType.substring(lastIndex + 1, contentType.length()); int pos; //extracting the index of file pos = file.indexOf("filename=\""); pos = file.indexOf("\n", pos) + 1; pos = file.indexOf("\n", pos) + 1; pos = file.indexOf("\n", pos) + 1; int boundaryLocation = file.indexOf(boundary, pos) - 4; int startPos = ((file.substring(0, pos)).getBytes()).length; int endPos = ((file.substring(0, boundaryLocation)) .getBytes()).length; // creating a new file with the same name and writing the content in new file FileOutputStream fileOut = new FileOutputStream(saveFile); fileOut.write(dataBytes, startPos, (endPos - startPos)); fileOut.flush(); fileOut.close(); %><Br><table border="2"><tr><td><b>You have successfully upload the file by the name of: <% out.println(saveFile); % <% } %

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  • Struts2 form elements UI too rigid

    - by jscoot
    Hello, i found a similar problem like this: http://stackoverflow.com/questions/2314296/struts2-form-elements but no answer is given until now. So here i post my difficulties with a vengeance. I am using Struts2 with version 2.1.6. When I leave the input elements such as <s:textfield>, <s:textarea>, etc. of a <s:form> with the default theme, the elements are rendered as: <tr> <td class="tdLabel"><label for="firstname" class="label">Firstname:</label></td> <td><input type="text" name="firstname" id="firstname"/></td> </tr> <tr> <td class="tdLabel"><label for="lastname" class="label">Lastname:</label></td> <td><input type="text" name="lastname" id="lastname"/></td> </tr> Now if i want to add something, say an html label, between the two elements, the result gets messed up as described in the related question above. Another problem is: for the <s:checkbox> item, it is just not possible to add an extra title. For example, this tag <s:checkbox id="defaultprinter" name="defaultprinter" key="lbl.defaultprinter"/> is rendered as: <tr> <td valign="top" align="right"></td> <td valign="top" align="left"> <input type="checkbox" name="defaultprinter" value="true" checked="checked" id="defaultprinter"/> <label for="defaultprinter" class="checkboxLabel">Default Printer</label> </td> </tr> By only setting the attributes of <s:checkbox>, i can't add any text to the first <td> shown above (here it is empty!). I don't know if the above rigid UI problems can be solved or there is any workarounds somewhere. Thanks in advance.

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  • How to search for duplicate values in a huge text file having around Half Million records

    - by Shibu
    I have an input txt file which has data in the form of records (each row is a record and represents more or less like a DB table) and I need to find for duplicate values. For example: Rec1: ACCOUNT_NBR_1*NAME_1*VALUE_1 Rec2: ACCOUNT_NBR_2*NAME_2*VALUE_2 Rec3: ACCOUNT_NBR_1*NAME_3*VALUE_3 In the above set, the Rec1 and Rec2 are considered to be duplicates as the ACCOUNT NUMBERS are same(ACCOUNT_NBR1). Note: The input file shown above is a delimiter type file (the delimiter being *) however the file type can also be a fixed length file where each column starts and ends with a specified positions. I am currently doing this with the following logic: Loop thru each ACCOUNT NUMBER Loop thru each line of the txt file and record and check if this is repeated. If repeated record the same in a hashtable. End End And I am using 'Pattern' & 'BufferedReader' java API's to perform the above task. But since it is taking a long time, I would like to know a better way of handling it. Thanks, Shibu

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  • jQuery event binding does not work properly or i can't make it properly working

    - by Saiful
    HTML: <input id="email" name="email" type=text /> <input id="password name="password" type="password" /> JavaScript: var fields = ["email","password"]; for (var i in fields) { var field = $("#"+fields[i]); field.bind({ focus: function() { field.css("border-color","#f00"); }, blur: function() { field.css("border-color","#000"); } }); } My desire action will be as follows: When I place cursor on any of the above fields the input field's border will be red. When I take away the cursor from the field it's border will be black. But the event is occurs only for the password filed whether I place and take away cursor form any of the above fields.

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  • How to create two dimensional array in jquery or js

    - by learner
    I need to create dynamic global two dimensional array in jquery or javascript My function is like this <script> var index = 0; var globalArray = new Array(); function createArray(){ var loop = globalArray[index].length; var name = $.("#uname").val(); if(loop == 0){ globalArray[index][0] = uname; }else{ globalArray[index][loop++] = uname; } } </script> <div><input type="text" id="uname"> <input type='button' value='save' onclick='createArray();'> </div> On click of that button I am getting this error "globalArray[index] is undefined" How can I create one global array using jquery or javascript like this. I dont want any hidden field and all. Please help me. Thanks

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  • How to parse an uploaded txt file in Rails3

    - by gkaykck
    I have a form which have a file input; <%form_tag '/dboss/newsbsresult' , :remote=>true do %> <input type="file" id="examsendbutton" name="txtsbs"/><br/> <input type="submit" value="Gonder"> <%end%> Here i want the user to select a txt file which i try to parse and use at server, but i cannot catch the uploaded file with this code, def newsbsresult @u = params[:txtsbs] #Or params[:txtsbs].to_s p @u end What is the true way of achieving this?

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  • posting data to a site in C#

    - by Michel
    i'm flabbergasted, i've looked at almost every example, but it just doesn't work (the other party says they don't receive my data in the request parameter) I want to do this in code (send some xml data (without the xml declaration) to a uri): <form method="post" action="http://http://100.100.100.100:11111/getinfo"> <input type="text" value="<ps:Balance>100</ps:Balance>" name="request" id="request"> <br><br> <input type="submit" value="go"> </form>

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  • How to escape single quote

    - by Ravi
    Hello All, How can I escape a ' (single quote) in JS. This is where I'm trying to use it. <input type='text' id='abc' value='hel'lo'> result for the above code is "hel" populated in the text box. I tried to replace ' with \' but this what I'm getting. <input type='text' id='abc' value='hel\'lo'> result for the above code is "hel\" populated in the text box. How can I successfully escape the single quotes.

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  • angularjs model view update through angular directive

    - by Relicset
    I am trying to update my view using model in angular directive here is the directive I have created app.directive('aboutOptions', [function() { return { restrict: 'C', scope: { testing: '=' }, transclude: true, link: function(scope, elem, attr) { scope.$watch(attr.ngModel, function() { console.log(scope.$eval(attr.ngModel)); scope.testing = scope.$eval(attr.ngModel); }); } } }]); here is html model and file name is ab.html <input type="text" class="about-options" ng-model="testing" /> Here is the view to be updated and file name is show.html <h2 class="about-options">{{testing}}</h2> ab.html file will be loaded as a template inside jquery ui dialog and my show.html file is in main page If I remove scope: { testing: '=' }, Console is showing what I am typing Update - 1 Tried with the following changes testing: '=test' And in html <input type="text" class="about-options" ng-model="testing" /> <h2 class="about-options">{{test}}</h2>

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  • Confused about adding multiple td's to tr using jQuery

    - by Jason
    So I have the following code: <script type="text/javascript"> $(document).ready( function () { $("#txt").click(function () { var $TableRow = $('<tr></tr>'); var $TableData = $('<td></td>'); var $TableData2 = $('<td></td>'); // Works $("#tblControls").append( $TableRow.html( $TableData.text("Test, Hello World3") ) ); </script> <div style="display: inline"> <input type="button" id="txt" value="Add TextBox" style="" /> </div> <br/> <table id="tblControls" width="100%"> </table> But why does this not add two td's to the tr? $("#tblControls").append( $TableRow.html( $TableData.text("Test, Hello World3") + $TableData2.text("Test, Hello World4") ) ); What I get is this: [object Object][object Object]

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  • ASP.NET in VS IDE gives "Expression cannot be evaluated at this time."

    - by S Nash
    I read all of similar questions in SO but none seem to be an answer. Situation is simple. I have a ASP.NET webpage, In a VB code behind file I have the following line: iRendProvider = ddlProvider.SelectedItem.Value where iRendProvider is integer and ddlProvider is a dropdownlist. I put a breakpoint at the above line and code stops there. Now in the immdediate window in I type: ? ddlProvider.SelectedItem.Value I get "Expression cannot be evaluated at this time." If I step over iRendProvider = ddlProvider.SelectedItem.Value To the next line and I type ? iRendProvider , I see the correct value in the immediate window. Question is why this error and how to see contents of ddlProvider.

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  • Send copy of class to view class so it can render him? ( iPhone )

    - by Johannes Jensen
    I'm making a game for the iPhone, and I have a class called Robot. Then I have a class called View, which renders everything. I want to send a copy of my Robot, which I defined in my ViewController, and I send it to gameView (which is View *gameView), like this: robot = [Robot new]; [gameView setRobot: [robot copy]]; I tried to make a copy but that didn't work, I could also do it with a pointer to Robot (&robot) but sometimes it just crashes ? I tried this in my View.h @interface definition: @property (copy) Robot* robot; but I get the error /RobotsAdventure/Classes/View.h:24: error: setter '-robot' argument type does not match property type :/ Help? I'm pretty new at this, heh.

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  • inconsistency between Sun JRE javac and Eclipse java compiler?

    - by Jason S
    This confuses me. The following compiles fine under Eclipse. package com.example.gotchas; public class GenericHelper1 { static <T> T fail() throws UnsupportedOperationException { throw new UnsupportedOperationException(); } /** * just calls fail() * @return something maybe */ public boolean argh() { return fail(); } public static void main(String[] args) { // TODO Auto-generated method stub } } But if I try to do a clean build with ant, or at the command line with javac, I get this: src\com\example\gotchas\GenericHelper1.java:14: type parameters of <T>T cannot be determined; no unique maximal instance exists for type variable T with upper bounds boolean,java.lang.Object public boolean argh() { return fail(); } ^ 1 error what gives, and how do I fix it?

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  • Solution for distributing MANY simple network tasks?

    - by EmpireJones
    I would like to create some sort of a distributed setup for running a ton of small/simple REST web queries in a production environment. For each 5-10 related queries which are executed from a node, I will generate a very small amount of derived data, which will need to be stored in a standard relational database (such as PostgreSQL). What platforms are built for this type of problem set? The nature, data sizes, and quantities seem to contradict the mindset of Hadoop. There are also more grid based architectures such as Condor and Sun Grid Engine, which I have seen mentioned. I'm not sure if these platforms have any recovery from errors though (checking if a job succeeds). What I would really like is a FIFO type queue that I could add jobs to, with the end result of my database getting updated. Any suggestions on the best tool for the job?

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