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  • which collection should I use

    - by Masna
    Hello, I have a number of custom objects of type X. X has a number of parameters and must be unique in the collection. (I created my own equals method based on the custom parameters to examine this) In each object of type x, I have a list of objects y. I want to add/remove/modify easily an object y. For example: To write the add method, it would be something like add(objTypeX, objTypeY) I would check or the collections already has a objTypeX. If so: i would add the objTypeY to the already existing objTypeX else: i would create objTypeX and add objTypeY to this object. To modify an objTypeY, it would be something like(objTypeX, objTypeY, newobjTypeY) I would get objTypeX out of the collections and modify objTypeY to newobjTypeY Which collections should I use? I tried with hashset but i can get a specific object out of the list, without run down the list till I find that object. I develop this in vb.net 3.5

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  • JSON in an AJAX request

    - by Josh K
    I have a PHP API I'm working with that outputs everything as JSON. I need to call one of the API methods and parse it out using an AJAX request. I am using jQuery (though it shouldn't matter). When I make the request it errors out with a "parsererror" as the textStatus and a "Syntax Error: invalid label" when I make the request. Simplified code: $.ajax ({ type: "POST", url: "http://mydomain.com/api/get/userlist/"+mid, dataType: "json", dataFilter: function(data, type) { /* Here we assume and pray */ users = eval(data); alert(users[1].id); }, success: function(data, textStatus, XMLHttpRequest) { alert(data.length); // Should be an array, yet is undefined. }, error: function(XMLHttpRequest, textStatus, errorThrown) { alert(textStatus); alert(errorThrown); }, complete: function(XMLHttpRequest, textStatus) { alert("Done"); } });

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  • Iterating Oracle collections of objects with out exploding them

    - by Scott Bailey
    I'm using Oracle object data types to represent a timespan or period. And I've got to do a bunch of operations that involve working with collections of periods. Iterating over collections in SQL is significantly faster than in PL/SQL. CREATE TYPE PERIOD AS OBJECT ( beginning DATE, ending DATE, ... some member functions...); CREATE TYPE PERIOD_TABLE AS TABLE OF PERIOD; -- sample usage SELECT <<period object>>.contains(period2) FROM TABLE(period_table1) t The problem is that the TABLE() function explodes the objects into scalar values, and I really need the objects instead. I could use the scalar values to recreate the objects but this would incur the overhead of re-instantiating the objects. And the period is designed to be subclassed so there would be additional difficulty trying to figure out what to initialize it as. Is there another way to do this that doesn't destroy my objects?

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  • openSSL tutorial not fully working - Can sign but cannot restore original file

    - by djechelon
    I'm writing, and testing, a little tutorial for my groupmates involved in an openSSL homework. We have a bunch of PDF files, I'm the CA and each one should send me a signed PDF for me to be verified. I've told them to do the following (and tried to do it by myself) Request and obtain a certificate (I'll skip this part) Create a MIME message with the PDF file in it makemime -c "text/pdf" -a "Content-Disposition: attachment; filename=”Elaborato.pdf" Elaborato.pdf > Elaborato.pdf.msg Sign with openSSL openssl smime -sign -in Elaborato.pdf.msg -out Elaborato.pdf.p7m -certfile ca.pem -certfile nomegruppo.crt -inkey nomegruppo.key -signer nomegruppo.crt Verify with openssl smime -verify -in Elaborato.pdf.p7m -out Elaborato-verified.msg -CAfile ca.pem -signer nomegruppo.crt Extract attachment with munpack Elaborato-verified.msg View with Acrobat Reader The problem is that even if I get a file that (from its binary content) resembles a PDF file my current Ubuntu PDF viewer doesn't read it. The XXXElaborato.pdf extracted by munpack is a little bit smaller than the original. What's the problem with this procedure? In theory, they should send me the signed S/MIME message and I should be able to read the PDF within it. Why can't I restore the original content of the PDF file?

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  • javascript and css working on firefox but not working on IE

    - by Nirbhay saini
    Hi I have this code which working on fitrefox but not working on IE missing last charector on IE <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>wrapped</title> <script type="text/javascript" language="javascript"> function set_padd(){ var tt = document.getElementById("span_padding").innerHTML; var txt = new Array(); txt = tt.split(" "); var atxt = ''; var f_txt = ''; var wrd_pr_linr = 4; var cnt = 1; for(var i = 0; i < txt.length; i++){ if(txt[i].length > 0){ txt[i] = txt[i].replace(' ',''); if(cnt < wrd_pr_linr){ if(txt[i].length > 0){ atxt += ' '+txt[i].replace(' ',''); cnt++; } }else{ f_txt += '<a class="padd_txt" >'+atxt+'</a><br />'; atxt = ''; cnt = 1; } } } document.getElementById("span_padding").innerHTML = f_txt; } </script> <style type="text/css"> .padd_txt{padding:7px;background:#009;color:#FFF;line-height:26px;font-size:14px;} body{font-family:'Trebuchet MS', Arial, Helvetica, sans-serif; font-size:24px; line-height:1.2em;} span{background-color: #009; width:200px; color: #FFF;" class="blocktext;} </style> </head> <body onload="set_padd();"> <div style="width: 350px;"> <p> <span id="span_padding"> This is what I want to happen where one long string is wrapped and the text has this highlight color behind it. </span> </div> </body> </html> out put on firefox is This is I want to happen where one string is wrapped and the text this highlight behind it. and output on IE This is what want to happen one long string wrapped and the has this highlight missing last two word

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  • Compilers behave differently with a null parameter of a generic method

    - by Eyal Schneider
    The following code compiles perfectly with Eclipse, but fails to compile with javac: public class HowBizarre { public static <P extends Number, T extends P> void doIt(P value) { } public static void main(String[] args) { doIt(null); } } I simplified the code, so T is not used at all now. Still, I don't see a reason for the error. For some reason javac decides that T stands for Object, and then complains that Object does not conform to the bounds of T (which is true): HowBizarre.java:6: incompatible types; inferred type argument(s) java.lang.Number,java.lang.Object do not conform to bounds of type variable (s) P,T found : <P,T>void required: void doIt(null); ^ Note that if I replace the null parameter with a non-null value, it compiles fine. Which of the compilers behaves correctly and why? Is this a bug of one of them?

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  • XmlSerializer Performance Issue when Specifying XmlRootAttribute

    - by Dougc
    I'm currently having a really weird issue and I can't seem to figure out how to resolve it. I've got a fairly complex type which I'm trying to serialize using the XmlSerializer class. This actually functions fine and the type serializes properly, but seems to take a very long time in doing so; around 5 seconds depending on the data in the object. After a bit of profiling I've narrowed the issue down - bizarrely - to specifying an XmlRootAttribute when calling XmlSerializer.Serialize. I do this to change the name of a collection being serialized from ArrayOf to something a bit more meaningful. Once I remove the parameter the operation is almost instant! Any thoughts or suggestions would be excellent as I'm entirely stumped on this one!

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  • Auto generating UI

    - by joshua
    Hi Guys; I am writting an application that autogenerated the data input UI from a java bean. Now i have a bean that has other beans as a property. eg User has property username, and usertype of type UserType; Whats the best strategy in java. Do i loop through the fields in an if else loop? eg. get field list if field is of type text use text field else if field is a number user a number field etc. is there a shortcut to the ifs?

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  • WinForms: Why do I get InvalidCastException when showing folder browser dialog?

    - by Marek
    I am randomly getting InvalidCastException when showing FolderBrowserDialog and also many clients have reported this. I have not been able to find anything relevant on the internet. Does anyone know what causes this/how to fix this? My code: using (FolderBrowserDialog fbd = new FolderBrowserDialog()) { fbd.ShowNewFolderButton = false; if (fbd.ShowDialog() == DialogResult.OK) Stack trace: Error: System.InvalidCastException: 'Unable to cast object of type 'System.__ComObject' to type 'IMalloc'.'. Stack trace: at System.Windows.Forms.UnsafeNativeMethods.Shell32.SHGetMalloc(IMalloc[] ppMalloc) at System.Windows.Forms.FolderBrowserDialog.GetSHMalloc() at System.Windows.Forms.FolderBrowserDialog.RunDialog(IntPtr hWndOwner) at System.Windows.Forms.CommonDialog.ShowDialog(IWin32Window owner) at System.Windows.Forms.CommonDialog.ShowDialog() EDIT: Additional information: I have been able to reproduce this only when running in VS2008 debugger. When running out of debugger, it happens only very rarely (happened once or twice in 6 months) on my 64 bit Windows 7 and goes away after restart. The clients are certainly not running the app in debugger so it is surely reproducible out of debugger.

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  • nested linq-to-sql queries

    - by ile
    var result = ( from contact in db.Contacts join user in db.Users on contact.CreatedByUserID equals user.UserID orderby contact.ContactID descending select new ContactListView { ContactID = contact.ContactID, FirstName = contact.FirstName, LastName = contact.LastName, Company = (from field in contact.XmlFields.Descendants("Company") select field.Value).SingleOrDefault().ToString() }).Take(10); Here I described how my database tables look like. So, contacts table has one field that is xml type. In that field is stored Company filename and I need to read it. I tried it using this way: Company = (from field in contact.XmlFields.Descendants("Company") select field.Value).SingleOrDefault().ToString() }).Take(10); but I get following error: Member access 'System.String Value' of 'System.Xml.Linq.XElement' not legal on type 'System.Collections.Generic.IEnumerable`1[System.Xml.Linq.XElement]. Any solution for this? Thanks in advance, Ile

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  • Python lambda returning None instead of empty string

    - by yoshi
    I have the following lambda function: f = lambda x: x == None and '' or x It should return an empty string if it receives None as the argument, or the argument if it's not None. For example: >>> f(4) 4 >>> f(None) >>> If I call f(None) instead of getting an empty string I get None. I printed the type of what the function returned and I got NoneType. I was expecting string. type('') returns string, so I'd like to know why the lambda doesn't return an empty string when I pass None as an argument. I'm fairly new to lambdas so I might have misunderstood some things about how they work.

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  • Unique JQuery Events for a Class

    - by Daniel Macias
    I am trying to create a class that can send a unique jQuery event. Example: function Bomb(id) { this.evnt = $.Event("BOOM!_" + id); this.detonate = function() { $(document).trigger(evnt); }; } var firecracker = new Bomb(); var nuclearbomb = new Bomb(); $(document).bind(firecracker.evnt.type, function(){ // It's the fourth of july!!! }); $(document).bind(nuclearbomb.evnt.type, function(){ // We're dead }); firecracker.detonate(); nuclearbomb.detonate(); How can I create a unique event within the Bomb class without having to pass in an ID to create a unique event string for the class?

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  • How to write a Custom DesignerSerializer for an class used by a Activity (WF)

    - by Stefan Steinegger
    I have a type which is used in a WF activity. It should be serialized. It doesn't work out of the box, most probably because of the private setters in that type. I'm not sure if this is the correct way, but I tried to write my own serializer and declared it on my class. [DesignerSerializer( typeof(FooDesignerSerializer), // my custom serializer typeof(WorkflowMarkupSerializer))] public class Foo { public Foo(int value, string name { // ... } public int Value { get; private set; } public string Name { get; private set; } } Is this the easiest way to get it serialized? How do I write this serializer? That's what I got so far: public class FooDesignerSerializer : WorkflowMarkupSerializer { protected override string SerializeToString( WorkflowMarkupSerializationManager serializationManager, object value) { // how to create a valid / XOML-like string? } }

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  • Invite friends from facebook on my application using facebook api

    - by Seema
    Hello all, I create a application which allow user integration through facebook(connect with facebook).when user sign-in in application , i want to show all facebook friends of sign-in user for invite them to join my application. In current i am using multi friend selector for invite friends. <fb:serverfbml width="615"> <script type="text/fbml"> <fb:request-form action="action url" method="POST" invite="true" type="invite" content=" my message"> <fb:multi-friend-selector showborder="true" bypass="cancel" cols=3 email_invite="false" import_external_friends="false" actiontext="Invite your friend from facebook"/> </fb:request-form> </script> </fb:serverfbml> I want to customize mult friend selector 1 Can change css and show all friend in a single column? 2 can i show disable the friends whose are already connect with my application? please give your suggestion or if any other option for this. Thanks

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  • How to remove code from HTML string?

    - by TruMan1
    I have a variable that has this string: <DIV><SPAN style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt">[If the confirmation is active the subscriber will receive this email after succesfully confirming. If not, this will be the first and only email he will receive.]</SPAN></DIV> <p align=center> <input class=fieldbox10 type = 'button' name = 'button' value = 'Close' onclick = "window.close()"> </p> How do I remove the below string without worrying about spaces via Javascript (or jQuery)? <p align=center> <input class=fieldbox10 type = 'button' name = 'button' value = 'Close' onclick = "window.close()"> </p>

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  • MySQL UNION query from one table + ORDER BY

    - by ilnur777
    I have one table with two queries and I need to sort it with descending type using ORDER BY. Here is my MySQL query that does not work properly: (SELECT `text` FROM `comments` WHERE user_fr='".$user."' && archive='1' ORDER BY `is_new_fr` DESC) UNION (SELECT `text` FROM `message` WHERE user_to='".$user."' && archive='1' ORDER BY `is_new_to` DESC) Description! is_new_fr and is_new_to counts total new messages. Here is my table contant: user_fr | user_to | archive | is_new_fr | is_new_to| text name1 | name2 | 1 | 2 | 0 | testing... name2 | name1 | 1 | 0 | 5 | testing ... I want to make an order that 1st will display note that has more messages to few, or by another words using DESCending type. This is the display on the page I want to do: Open dialog with name2. Messages (5) Open dialog with name1. Messages (2) Thank you!

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  • How to view ASMX SOAP using Fiddler2?

    - by outer join
    Does anyone know if Fiddler can display the raw SOAP messages for ASMX web services? I'm testing a simple web service using both Fiddler2 and Storm and the results vary (Fiddler shows plain xml while Storm shows the SOAP messages). See sample request/responses below: Fiddler2 Request: POST /webservice1.asmx/Test HTTP/1.1 Accept: */* Referer: http://localhost.:4164/webservice1.asmx?op=Test Accept-Language: en-us User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; InfoPath.2; MS-RTC LM 8) Content-Type: application/x-www-form-urlencoded Accept-Encoding: gzip, deflate Host: localhost.:4164 Content-Length: 0 Connection: Keep-Alive Pragma: no-cache Fiddler2 Response: HTTP/1.1 200 OK Server: ASP.NET Development Server/9.0.0.0 Date: Thu, 21 Jan 2010 14:21:50 GMT X-AspNet-Version: 2.0.50727 Cache-Control: private, max-age=0 Content-Type: text/xml; charset=utf-8 Content-Length: 96 Connection: Close <?xml version="1.0" encoding="utf-8"?> <string xmlns="http://tempuri.org/">Hello World</string> Storm Request (body only): <?xml version="1.0" encoding="utf-8"?> <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"> <soap:Body> <Test xmlns="http://tempuri.org/" /> </soap:Body> </soap:Envelope> Storm Response: Status Code: 200 Content Length : 339 Content Type: text/xml; charset=utf-8 Server: ASP.NET Development Server/9.0.0.0 Status Description: OK <?xml version="1.0" encoding="utf-8"?> <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <soap:Body> <TestResponse xmlns="http://tempuri.org/"> <TestResult>Hello World</TestResult> </TestResponse> </soap:Body> </soap:Envelope> Thanks for any help.

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  • Adding value to an Input field on click

    - by Wazdesign
    I have this structure on form, <input type="test" value="" id="username" /> <span class="input-value">John Smith</span> <a href="#" class="fill-input">Fill Input</a> when user click on the Fill Input , the data from span which has class input-value will be added to value, after clicking a tag the code should be look like this, <input type="test" value="john Smith" id="username" /> <span class="input-value">John Smith</span> <a href="#" class="fill-input">Fill Input</a> there are many forms element/input on the single page.

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  • Does Delphi really handle dynamic classes better than static?

    - by John
    Hello, I was told more than once that Delphi handles dynamic classes better than static.Thereby using the following: type Tsomeclass=class(TObject) private procedure proc1; public someint:integer; procedure proc2; end; var someclass:TSomeclass; implementation ... initialization someclass:=TSomeclass.Create; finalization someclass.Free; rather than type Tsomeclass=class private class procedure proc1; public var someint:integer; class procedure proc2; end; 90% of the classes in the project I'm working on have and need only one instance.Do I really have to use the first way for using those classes? Is it better optimized,handled by Delphi? Sorry,I have no arguments to backup this hypothesis,but I want an expert's opinion. Thanks in advance!

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  • T-SQL out of order insert

    - by tearman
    Basically I have a User-Defined Table Type (for use as a table-valued variable) which I'm referencing in a stored procedure that effectively just calls two other stored procedures, then inserts those values into the table type. Id est INSERT INTO @tableValuedVariable (var1, var2, var3, var4, var5) EXEC [dbo].StoredProcedure1; INSERT INTO @tableValuedVariable (var1, var2, var5) EXEC [dbo].StoredProcedure2; You can probably already tell what I'm going to ask. Basically StoredProcedure2 only returns a few of the values the table is set to hold, and I'd like those other variables to just be null (as defined as default). Only SQL is complaining that I'm not specifying all the variables available to that table. The return datasets can be quite sizable so I'd like to avoid loops and such for obvious reasons. Thanks for any help.

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  • DAS vs SAN storage for serving 2 to 4 nodes

    - by Luke404
    We currently have 4 Linux nodes with local storage, arranged in two active/passive pairs with storage mirrored using DRBD, running virtual machines (actually using Xen Hypervisor) for typical hosting workloads (mail, web, a couple VPS, etc.). We're approaching the (presumed) maximum IOPS of those servers, and we're planning to migrate to an external storage solution with two active nodes, with capacity for up to four active nodes. Since we're an all-Dell shop I've done some research and found the MD3200 / MD3200i products should be the ones we're looking for. We are pretty sure we won't be attaching more than 4 hosts on a single storage and I'm wondering if there is any clear advantage for one or the other. In theory I should be able to attach 4 SAS hosts to a single MD3200 (single links on a single controller MD3200, or dual redundant SAS links from each host to a dual-controller MD3200), or 4 iSCSI hosts to a single MD3200i (directly on its 4 GigE ports without any switch, again with dual links for the dual controller option). Both setups should let us implement live VM migration since all hosts can access all the LUNs at the same time, and also some shared filesystem like GFS2 or OCFS2. Also, both setups should allow full redundancy of the whole system (assuming dual controllers in the storage). One difference I can see is that the DAS solution is actually limited to 4 hosts while the iSCSI one should be able to grow to more hosts (adding two GigE switches to the mix). One point for the iSCSI solution is that it would allow us to start out with our current nodes and upgrade them at a later time (we can't add other SAS controllers, but they already have 4 GigE ports each). With the right (iSCSI|SAS) controllers I should be able to connect diskless nodes and boot them off the external storage which I think is a good thing (get rid of any local storage). On the other hand, I would have thought the SAS one to be cheaper but it seems like an MD3200 actually costs a little less than an MD3200i (?) (please note: I've used Dell gear in my examples since that's what we're looking for but I assume the same goes with other vendors) I would like to know if my assumptions above are correct, and if I'm missing any important difference between the two setups.

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  • LIKE query for DateTime in NHibernate

    - by Anry
    For a column of type varchar I could write such a query: public IList<Order> GetByName(string orderName) { using (ISession session = NHibernateHelper.OpenSession()) { return session.CreateCriteria<Order>(). Add(Restrictions.Like("Name", string.Format("%{0}%", orderName))). List<Order>(); } } How do I write a similar LIKE-query for a column that has type datetime? public IList<Order> GetByDateTime(DateTime dateTime) { using (ISession session = NHibernateHelper.OpenSession()) { return //LIKE-query } } That is, if the method is passed the date and part-time (eg "25.03.2010 19"), then displays all orders are carried out in this period of time.

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