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  • NHibernate update using composite key

    - by Mahesh
    Hi, I have a table defnition as given below: License ClientId Type Total Used ClientId and Type together uniquely identifies a row. I have a mapping file as given below: <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" auto-import="true"> <class name="Acumen.AAM.Domain.Model.License, Acumen.AAM.Domain" lazy="false" table="License"> <id name="ClientId" access="field" column="ClientID" /> <property name="Total" access="field" column="Total"/> <property name="Used" access="field" column="Used"/> <property name="Type" access="field" column="Type"/> </class> </hibernate-mapping> If a client used a license to create a user, I need to update the Used column in the table. As I set ClientId as the id column for this table, I am getting TooManyRowsAffectedException. could you please let me know how to set a composite key at mapping level so that NHibernate can udpate based on ClientId and Type. Something like: Update License SET Used=Used-1 WHERE ClientId='xxx' AND Type=1 Please help. Thanks, Mahesh

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  • error handler isn't called when file is uploaded via ajax using jQuery form plugin

    - by scompt.com
    Here's my test case. If the form is posted, a 500 error response is sent. If not, the form is sent. If the file input tag is commented out, the error handler is called. If the file input tag is present, the error handler isn't called. I think this might have something to do with the fact that jQuery needs to use an iframe to handle the upload and iframes don't seem to respond to the error handler. Edit: If I add iframe: true to the options passed to ajaxSubmit to force the use of an iframe, the non-file-upload case stops working also, so it definitely has to do with the iframe. Edit2: I'm using the jQuery Form Plugin. <?php if($_SERVER['REQUEST_METHOD'] == 'POST') { header('HTTP/1.1 500 Internal Server Error'); die; } else {?> <html><head> <script type='text/javascript' src='http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js?ver=2.9.2'></script> <script type='text/javascript' src='http://github.com/malsup/form/raw/master/jquery.form.js?v2.43'></script> <script type="text/javascript"> jQuery(document).ready(function() { jQuery('a').click(function() {jQuery('form').ajaxSubmit({error: function(){alert('error handler called');}})}); }); </script> </head><body> <form method="POST"> <input type="text" name="mytext" /> <input type="file" name="myfile" /><!-- comment this element out --> <input type="hidden" name="blah" value="blah" /> <a>submit</a> </form> </body></html> <?php } Is there any way to get the error handler to be called in both situations?

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  • Using Javascript to submit forms.

    - by Razor Storm
    I am using a jQuery function to submit a form when a certain button is pressed, however this seems to have no effect on the form. My code is as follows: HTML: <form id="loginForm" action="" method="POST"> <input class="loginInput" type="hidden" name="action" value="login"> <input id="step1a" class="loginInput" type="text" name="username"> <input id="step2a" class="loginInput" type="password" name="password" style="display:none;"> <input id="step1b" class="loginSubmit" onclick="loginProceed();" type="button" name="submit" value="Proceed" title="Proceed" /> <input id="step2b" class="loginSubmit" onclick="submitlogin();" type="button" value="Validate" title="Validate" style="display:none;" /> Javascript: function submitlogin() { $("form").submit(); } However, when I press the button, absolutely nothing occurs. PS. This function may seem meaningless since I can just use a input type="submit" but I originally intended this to have some more functionality, I stripped the function to its bare bones for testing purposes.

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  • NHibernate Oracle stored procedure problem

    - by Mr. Flint
    ------Using VS2008, ASP.Net with C#, Oracle, NHibernate---- I have tested my stored procedure. It's working but not with NHibernate. Here are the codes: Procedure : create or replace procedure ThanaDelete (id number) as begin delete from thana_tbl where thana_code = id; end Mapping File: <?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="DataTransfer" namespace="DataTransfer"> <class name="DataTransfer.Models.Thana, DataTransfer" table="THANA_TBL"> <id name="THANA_CODE" column="THANA_CODE" type="Int32" unsaved-value="0"> <generator class="native"> <param name="sequence"> SEQ_TEST </param> </generator> </id> <property name="THANA_NAME" column="THANA_NAME" type="string" not-null="false"/> <property name="DISTRICT_CODE" column="DISTRICT_CODE" type="Int32" not-null="false"/> <property name="USER_ID" column="USER_ID" type="string" not-null="false"/> <property name="TRANSACTION_DATE" column="TRANSACTION_DATE" type="Date" not-null="false"/> <property name="TRANSACTION_TIME" column="TRANSACTION_TIME" type="string" not-null="false"/> <sql-delete>exec THANADELETE ? </sql-delete> </class> </hibernate-mapping> error: Message: could not delete: [DataTransfer.Models.Thana#10][SQL: exec THANADELETE ?] Source: NHibernate Inner Exception System.Data.OracleClient.OracleException Message: ORA-00900: invalid SQL statement

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  • Emulating Dynamic Dispatch in C++ based on Template Parameters

    - by Jon Purdy
    This is heavily simplified for the sake of the question. Say I have a hierarchy: struct Base { virtual int precision() const = 0; }; template<int Precision> struct Derived : public Base { typedef Traits<Precision>::Type Type; Derived(Type data) : value(data) {} virtual int precision() const { return Precision; } Type value; }; I want a function like: Base* function(const Base& a, const Base& b); Where the specific type of the result of the function is the same type as whichever of first and second has the greater Precision; something like the following pseudocode: template<class T> T* operation(const T& a, const T& b) { return new T(a.value + b.value); } Base* function(const Base& a, const Base& b) { if (a.precision() > b.precision()) return operation((A&)a, A(b.value)); else if (a.precision() < b.precision()) return operation(B(a.value), (B&)b); else return operation((A&)a, (A&)b); } Where A and B are the specific types of a and b, respectively. I want f to operate independently of how many instantiations of Derived there are. I'd like to avoid a massive table of typeid() comparisons, though RTTI is fine in answers. Any ideas?

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  • Using MongoDB's map/reduce to "group by" two fields

    - by ibz
    I need something slightly more complex than the examples in the MongoDB docs and I can't seem to be able to wrap my head around it. Say I have a collection of objects of the form {date: "2010-10-10", type: "EVENT_TYPE_1", user_id: 123, ...} Now I want to get something similar to a SQL GROUP BY query, grouping over both date and type. That is, I want the number of events of each type in each day. Also, I'd like to make it unique by user_id, ie. if a user has more events in the same day, count it only once. I'm trying to do this with map/reduce. I do db.logs.mapReduce(function() { emit(this.type, 1); }, function(k, vals) { var total = 0; for (var i = 0; i < vals.length; i++) total += vals[i]; return total; }}) which nicely groups by type, but now, how can I group by date at the same time? Seems the key in emit() can't be an array (I thought about doing emit([this.date, this.type], 1)). Also, how can I ensure the per-user uniqueness? I'm just starting with MongoDB and I'm still having trouble grasping the basic concepts. Also, there is not much documentation available out there. Any help from more experienced users is appreciated. Thanks!

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  • Cast errors with IXmlSerializable

    - by Nathan
    I am trying to use the IXmlSerializable interface to deserialize an Object (I am using it because I need specific control over what gets deserialized and what does not. See my previous question for more information). However, I'm stumped as to the error message I get. Below is the error message I get (I have changed some names for clarity): An unhandled exception of type 'System.InvalidCastException' occurred in App.exe Additional information: Unable to cast object of type 'System.Xml.XmlNode[]' to type 'MyObject'. MyObject has all the correct methods defined for the interface, and regardless of what I put in the method body for ReadXml() I still get this error. It doesn't matter if it has my implementation code or if it's just blank. I did some googling and found an error that looks similar to this involving polymorphic objects that implement IXmlSerializable. However, my class does not inherit from any others (besides Object). I suspected this may be an issue because I never reference XmlNode any other time in my code. Microsoft describes a solution to the polymorphism error: https://connect.microsoft.com/VisualStudio/feedback/details/422577/incorrect-deserialization-of-polymorphic-type-that-implements-ixmlserializable?wa=wsignin1.0#details The code the error occurs at is as follows. The object to be read back in is an ArrayList of "MyObjects" IO::FileStream ^fs = gcnew IO::FileStream(filename, IO::FileMode::Open); array<System::Type^>^ extraTypes = gcnew array<System::Type^>(1); extraTypes[0] = MyObject::typeid; XmlSerializer ^xmlser = gcnew XmlSerializer(ArrayList::typeid, extraTypes); System::Object ^obj; obj = xmlser->Deserialize(fs); fs->Close(); ArrayList ^al = safe_cast<ArrayList^>(obj); MyObject ^objs; for each(objs in al) //Error occurs here { //do some processing } Thanks for reading and for any help.

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  • Form Validation - IF field is blank THEN automatically selection option

    - by shovelshed
    Hi I need help to automatically select an option to submit with a form: When the 'form-email' field is blank i want it to select 'option 1' and, When the field is not blank i want it to select 'option 2'. Here's my form code <form method="post" onsubmit="return validate-category(this)" action="tdomf-form-post.php" id='tdomf_form1' name='tdomf_form1' class='tdomf_form'> <textarea title="Post Title" name="content-title-tf" id="form-content" >Say it...</textarea> <input type="text" value="" name="content-text-ta" id="form-email"/> <select name='categories' class='form-category' type="hidden"> <option value="3" type="hidden">Anonymous</option> <option value="4" type="hidden" selected="selected">Competition</option> </select> <input type="submit" value="Say it!" name="tdomf_form1_send" id="form-submit"/> </form> I have an idea that the javascript would go something like this, but can't find what the code is to change the value. <script type="text/javascript"> function validate-category(field) { with (field) { if (value==null||value=="") { select category 1 } else { select category 2 return true; } } } </script> Any help on this would be great. Thanks in advance.

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  • Where is default location where tracelistener writes txt logs

    - by djerry
    Hey guys, i want to log some traces in my service. When i set initializeData to a location in the d: partition, i can write with no problems. When i set the initializeData to c:\, it doesn't write at all. Now i was wondering 2 things : 1) Does my service not have the rights to write to c:\ partition? 2) if i don't specify the partition, where does it write to? This is the part of my app.config which works: <add initializeData="d:\txtServiceLog.txt" type="MonitoringServerService.FaultTracer, MonitoringServerService" name="txtListener" traceOutputOptions="DateTime, Timestamp, ProcessId, Callstack"> <filter type="" /> </add> When changing to code below, i doesn't write anymore : <add initializeData="c:\txtServiceLog.txt" type="MonitoringServerService.FaultTracer, MonitoringServerService" name="txtListener" traceOutputOptions="DateTime, Timestamp, ProcessId, Callstack"> <filter type="" /> </add> And where should i look if i do this : <add initializeData="txtServiceLog.txt" type="MonitoringServerService.FaultTracer, MonitoringServerService" name="txtListener" traceOutputOptions="DateTime, Timestamp, ProcessId, Callstack"> <filter type="" /> </add> Thanks in advance.

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  • Drill through table does not show correct count when used with a dimension having parent child hiera

    - by Arun Singhal
    Hi All, I have a dimension with parent child hierarchy as shown in code block. The issue i am facing is if i have a filter on parent child dimension then drill through table does not show filtered data instead it shows all the data for that dimension. Here is an example. <Dimension type="StandardDimension" name="page_type_d" caption="Page Type"> <Hierarchy name="page_type_h" hasAll="true" allMemberName="all_page_types" allMemberCaption="All Page Types" primaryKey="id"> <Table name="npg_page_type_view" alias="pt"> </Table> <Level name="Page Type" column="id" nameColumn="display_name" parentColumn="parent_id" nullParentValue="0" type="Integer" uniqueMembers="true" levelType="Regular" hideMemberIf="Never" caption="Page Type"> <Closure parentColumn="parent_id" childColumn="page_type_id"> <Table name="dim_page_types_closure"> </Table> </Closure> </Level> </Hierarchy> Now suppose i have 4 rows in npg_page_type_view table id display_name parent_id 19 HTML 100 20 PDF 100 21 XML 0 100 Total 0 Now suppose in my fact table i have following records id count 19 2 20 3 21 1 Following is my analysis view. Total (HTML and PDF) - 5 HTML - 2 PDF - 3 XML - 1 Now if i add filter(say Total) on this analysis view using OLAP cube. Then my analysis view shows the following. Total (HTML and PDF) - 5 Upto this point everything works fine. Now if i click on 5 (to view drill through table) It shows me data against all page type i.e. HTML, PDF, XML but as per filter it should show only HTML and PDF. Is it an exciting issue or am i doing something wrong here? Please help me.

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  • Set value of hidden field in a form using jQuery's ".val()" doesn't work !

    - by texens
    I've been trying to set the value of a hidden field in a form using jQuery, but without success. Here is a sample code that explains the problem. If I keep the input type to "text", it works without any trouble. But, changing the input type to "hidden", doesn't work ! <html> <head> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("button").click(function(){ $("input:text#texens").val("tinkumaster"); }); }); </script> </head> <body> <p>Name: <input type="hidden" id="texens" name="user" value="texens" /></p> <button>Change value for the text field</button> </body> </html> I also tried the following workaround, by setting the input type to "text" and then using a "display:none" style for the input box. But, this also fails ! It seems jQuery has some trouble setting hidden or invisible input fields. Any ideas? Is there a workaround for this that actually works? Thanking in anticipation

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  • How to use reflection to call a method and pass parameters whose types are unknown at compile time?

    - by MandoMando
    I'd like to call methods of a class dynamically with parameter values that are "parsed" from a string input. For example: I'd like to call the following program with these commands: c:myprog.exe MethodA System.Int32 777 c:myprog.exe MethodA System.float 23.17 c:myprog.exe MethodB System.Int32& 777 c:myprog.exe MethodC System.Int32 777 System.String ThisCanBeDone static void Main(string[] args) { ClassA aa = new ClassA(); System.Type[] types = new Type[args.Length / 2]; object[] ParamArray = new object[types.Length]; for (int i=0; i < types.Length; i++) { types[i] = System.Type.GetType(args[i*2 + 1]); // LINE_X: this will obviously cause runtime error invalid type/casting ParamArray[i] = args[i*2 + 2]; MethodInfo callInfo = aa.GetType().GetMethod(args[0],types); callInfo.Invoke(aa, ParamArray); } // In a non-changeable classlib: public class ClassA { public void MethodA(int i) { Console.Write(i.ToString()); } public void MethodA(float f) { Console.Write(f.ToString()); } public void MethodB(ref int i) { Console.Write(i.ToString()); i++; } public void MethodC(int i, string s) { Console.Write(s + i.ToString()); } public void MethodA(object o) { Console.Write("Argg! Type Trapped!"); } } "LINE_X" in the above code is the sticky part. For one, I have no idea how to assign value to a int or a ref int parameter even after I create it using Activator.CreatInstance or something else. The typeConverter does come to mind, but then that requires an explicit compile type casting as well. Am I looking at CLR with JavaScript glasses or there is way to do this?

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  • Use of 'this keyword' javascript in IE ?

    - by Ron
    Is there a workaround for Internet Explorer to implement the functionality offered by 'this' javascript keyword to get the dom element that triggered the event? My problem scenario is : I have a variable number of text fields in the html form, like input type="text" id="11" input type="text" id="12" .. I need to handle the "onchange" event for each text field, and the handling is dependent on the 'id' of the field that triggered the event. So far I understand that my options are: 1) attach a dedicated event handler for each text field. so if I have n fields, i have n different functions, something like: input type="text" id="11" onchange="function11();" input type="text" id="12" onchange="function12();" but the text fields are added and removed dynamically, so a better way would be to have one generic function instead. 2) use the 'this' keyword like: input type="text" id="11" onchange="functionGeneric(this);" input type="text" id="12" onchange="functionGeneric(this);" But this option does not work with Internet Explorer. Can anyone suggest a work around for getting it work in IE or some other solution that can be applied here? Thanks.

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  • HTML Calendar form and input arrays

    - by Christopher Ickes
    Hello. Looking for the best practice here... Have a form that consists of a calendar. Each day of the calendar has 2 text input fields - customer and check-in. What would be the best & most efficient way to send this form to PHP for processing? <form action="post"> <div class="day"> Day 1<br /> <label for="customer['.$current['date'].']">Customer</label> <input type="text" name="customer['.$current['date'].']" value="" size="20" /> <label for="check-in['.$current['date'].']">Check-In</label> <input type="text" name="check-in['.$current['date'].']" value="" size="20" /> <input type="submit" name="submit" value="Update" /> </day> <div class="day"> Day 2<br /> <label for="customer['.$current['date'].']">Customer</label> <input type="text" name="customer['.$current['date'].']" value="" size="20" /> <label for="check-in['.$current['date'].']">Check-In</label> <input type="text" name="check-in['.$current['date'].']" value="" size="20" /> <input type="submit" name="submit" value="Update" /> </day> </form> Is my current setup good? I feel there has to be a better option. My concern involves processing a whole year at once (which can happen) and adding additional text input fields.

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  • How do I DYNAMICALLY cast in C# and return for a property

    - by ken-forslund
    I've already read threads on the topic, but can't find a solution that fits. I'm working on a drop-down list that takes an enum and uses that to populate itself. i found a VB.NET one. During the porting process, I discovered that it uses DirectCast() to set the type as it returns the SelectedValue. See the original VB here: http://jeffhandley.com/archive/2008/01/27/enum-list-dropdown-control.aspx the gist is, the control has Type _enumType; //gets set when the datasource is set and is the type of the specific enum The SelectedValue property kind of looks like (remember, it doesn't work): public Enum SelectedValue //Shadows Property { get { // Get the value from the request to allow for disabled viewstate string RequestValue = this.Page.Request.Params[this.UniqueID]; return Enum.Parse(_enumType, RequestValue, true) as _enumType; } set { base.SelectedValue = value.ToString(); } } Now this touches on a core point that I think was missed in the other discussions. In darn near every example, folks argued that DirectCast wasn't needed, because in every example, they statically defined the type. That's not the case here. As the programmer of the control, I don't know the type. Therefore, I can't cast it. Additionally, the following examples of lines won't compile because c# casting doesn't accept a variable. Whereas VB's CType and DirectCast can accept Type T as a function parameter: return Enum.Parse(_enumType, RequestValue, true); or return Enum.Parse(_enumType, RequestValue, true) as _enumType; or return (_enumType)Enum.Parse(_enumType, RequestValue, true) ; or return Convert.ChangeType(Enum.Parse(_enumType, RequestValue, true), _enumType); or return CastTo<_enumType>(Enum.Parse(_enumType, RequestValue, true)); So, any ideas on a solution? What's the .NET 3.5 best way to resolve this?

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  • Read from one large file and write to many (tens, hundreds, or thousands) files in Java?

    - by Rudiger
    I have a large-ish file (4-5 GB compressed) of small messages that I wish to parse into approximately 6,000 files by message type. Messages are small; anywhere from 5 to 50 bytes depending on the type. Each message starts with a fixed-size type field (a 6-byte key). If I read a message of type '000001', I want to write append its payload to 000001.dat, etc. The input file contains a mixture of messages; I want N homogeneous output files, where each output file contains only the messages of a given type. What's an efficient a fast way of writing these messages to so many individual files? I'd like to use as much memory and processing power to get it done as fast as possible. I can write compressed or uncompressed files to the disk. I'm thinking of using a hashmap with a message type key and an outputstream value, but I'm sure there's a better way to do it. Thanks!

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  • C#'s equivalent to VB.Net's DirectCast?

    - by Collin Sauve
    This has probably been asked before, but if it has, I can't find it. Does C# have an equivalent to VB.Net's DirectCast? I am aware that it has () casts and the 'as' keyword, but those line up to CType and TryCast. To be clear, these keywords do the following; CType/() casts: If it is already the correct type, cast it, otherwise look for a type converter and invoke it. If no type converter is found, throw an InvalidCastException. TryCast/"as" keyword: If it is the correct type, cast it, otherwise return null. DirectCast: If it is the correct type, cast it, otherwise throw an InvalidCastException. EDIT: After I have spelled out the above, some people have still responded that () is equivalent, so I will expand further upon why this is not true. DirectCast only allows for either Narrowing or Widening conversions on inheritance tree, it does not support conversions across different branches like () does. ie: C#, this compiles and runs: //This code uses a type converter to go across an inheritance tree double d = 10; int i = (int)d; VB.Net, this does NOT COMPILE 'Direct cast can only go up or down a branch, never across to a different one. Dim d as Double= 10 Dim i as Integer = DirectCast(d, Integer) The equivalent in VB.Net to my C# code is CType: 'This compiles and runs Dim d as Double= 10 Dim i as Integer = CType(d, Integer) (Edit again, I was originally using strings, I changed it to double... sorry)

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  • How to pass multiple different records (not class due to delphi limitations) to a function?

    - by mingo
    Hi to all. I have a number of records I cannot convert to classes due to Delphi limitation (all of them uses class operators to implement comparisons). But I have to pass to store them in a class not knowing which record type I'm using. Something like this: type R1 = record begin x :Mytype; class operator Equal(a,b:R1) end; type R2 = record begin y :Mytype; class operator Equal(a,b:R2) end; type Rn = record begin z :Mytype; class operator Equal(a,b:Rn) end; type TC = class begin x : TObject; y : Mytype; function payload (n:TObject) end; function TC.payload(n:TObject) begin x := n; end; program: c : TC; x : R1; y : R2; ... c := TC.Create(): n:=TOBject(x); c.payload(n); Now, Delphi do not accept typecast from record to TObject, and I cannot make them classes due to Delphi limitation. Anyone knows a way to pass different records to a function and recognize their type when needed, as we do with class: if x is TMyClass then TMyClass(x) ... ???

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  • How to use void*

    - by Rondogiannis Aristophanes
    I am imlementing a simple merge function and I have got stuck, as the compiler gives me errors that I cannot explain. Here is my merge function: void merge(void *a, int beg, int middle, int end, int (*cmp)(const void*, const void* { std::stack<void*> first; std::stack<void*> second; for(int i = beg; i < middle; i++) { first.push(a+i); } for(int i = middle; i < end; i++) { second.push(a+i); } for(int i = beg; i < end; i++) { if(first.empty()) { void *tmp = second.top(); second.pop(); a+i = tmp; } else if(second.empty()) { void *tmp = first.top(); first.pop(); a+i = tmp; } else if(cmp(first.top(), second.top())) { void *tmp = first.top(); first.pop(); a+i = tmp; } else { void *tmp = second.top(); second.pop(); a+i = tmp; } } } And here is the error: sort.h: In function `void merge(void*, int, int, int, int (*)(const void*, const void*))': sort.h:9: error: pointer of type `void *' used in arithmetic sort.h:12: error: pointer of type `void *' used in arithmetic sort.h:19: error: pointer of type `void *' used in arithmetic sort.h:19: error: non-lvalue in assignment sort.h:23: error: pointer of type `void *' used in arithmetic sort.h:23: error: non-lvalue in assignment sort.h:27: error: pointer of type `void *' used in arithmetic sort.h:27: error: non-lvalue in assignment sort.h:31: error: pointer of type `void *' used in arithmetic sort.h:31: error: non-lvalue in assignment Can anyone help me? TIA.

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  • C/C++: Passing a structure by value, with another structure as one of its members, changes values of

    - by jellyfisharepretty
    Sorry for the confusing title, but it basically says it all. Here's the structures I'm using (found in OpenCV) : struct CV_EXPORTS CvRTParams : public CvDTreeParams { bool calc_var_importance; int nactive_vars; CvTermCriteria term_crit; CvRTParams() : CvDTreeParams( 5, 10, 0, false, 10, 0, false, false, 0 ), calc_var_importance(false), nactive_vars(0) { term_crit = cvTermCriteria( CV_TERMCRIT_ITER+CV_TERMCRIT_EPS, 50, 0.1 ); } } and typedef struct CvTermCriteria { int type; int max_iter; double epsilon; } CvTermCriteria; CV_INLINE CvTermCriteria cvTermCriteria( int type, int max_iter, double epsilon ) { CvTermCriteria t; t.type = type; t.max_iter = max_iter; t.epsilon = (float)epsilon; return t; } Now, I initialize a CvRTParams structure and set values for its members : CvRTParams params; params.max_depth = 8; params.min_sample_count = 10; params.regression_accuracy = 0; params.use_surrogates = false; params.max_categories = 10; params.priors = priors; params.calc_var_importance = true; params.nactive_vars = 9; params.term_crit.max_iter = 33; params.term_crit.epsilon = 0.1; params.term_crit.type = 3; Then call a function of an object, taking params in as a parameter : CvRTrees* rt = new CvRTrees; rt->train(t, CV_ROW_SAMPLE, r, 0, 0, var_type, 0, params) What happens now ? Values of... params.term_crit.max_iter params.term_crit.epsilon params.term_crit.type have changed ! They are no longer 33, 0.1 and 3, but something along the lines of 3, 7.05541e-313 and 4, and this, for the whole duration of the CvRtrees::train() function...

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  • Volatile fields in C#

    - by Danny Chen
    From the specification 10.5.3 Volatile fields: The type of a volatile field must be one of the following: A reference-type. The type byte, sbyte, short, ushort, int, uint, char, float, bool, System.IntPtr, or System.UIntPtr. An enum-type having an enum base type of byte, sbyte, short, ushort, int, or uint. First I want to confirm my understanding is correct: I guess the above types can be volatile because they are stored as a 4-bytes unit in memory(for reference types because of its address), which guarantees the read/write operation is atomic. A double/long/etc type can't be volatile because they are not atomic reading/writing since they are more than 4 bytes in memory. Is my understanding correct? And the second, if the first guess is correct, why a user defined struct with only one int field in it(or something similar, 4 bytes is ok) can't be volatile? Theoretically it's atomic right? Or it's not allowed simply because that all user defined structs(which is possibly more than 4 bytes) are not allowed to volatile by design?

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  • JQuery Hover does not work Mozilla

    - by josephj1989
    I have the following Snippet of code.The hover has a problem in Mozilla - It changes color on hover but some times it does not revert back when we go out.Mind you it only happens sometimes.Also in such cases if I examine the HTML using FireBug I can see that the Extra Class is assigned even after hover is out.It works OK on IE .This is a simplified version Also as you can see I am setting color on the TR.But this does not change the Color on TextBoxes inside TR. How can I make sure the background color of the Controls contained in the TR is also changed on hover. <style type="text/css"> .HighLight { background-color:Fuchsia; } .Select { border:soild 2px Blue; margin:3px; } </style> <script type="text/javascript" src="jquery-1.4.2.js"> </script> <script type="text/javascript"> $(function() { $(".Select").hover( function() { $(this).addClass("HighLight"); }, function() { $(this).removeClass("HighLight"); }); }); My Markup generated by ASP.NET Repeater Control is a table with TR assigned Class Select. <tr class="Select" > <td> <input type="checkbox" id="chkSelect" /> </td> <td> <input name="Repeater1$ctl11$tb" type="text" value="Sharp Bikes" id="Repeater1_ctl11_tb" /> </td> <td> <input name="Repeater1$ctl11$tb2" type="text" value="10/13/2004 11:15:07 AM" id="Repeater1_ctl11_tb2" /> </td> </tr>

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  • Pass checkbox values with Jquery to PHP and display result in div

    - by user1343955
    I want to filter realtime results with jQuery (just like on this site http://shop.www.hi.nl/hi/mcsmambo.p?M5NextUrl=RSRCH). So when someones checks a checkbox the results should update realtime (in a div). Now I'm a newbie with jQuery and I've tried lots of examples but I can't get it to work. Here's my code, could anyone tell what I'm doing wrong? Thank you very much! HTML <div id="c_b"> Kleur:<br /> <input type="checkbox" name="kleur[1]" value="Blauw"> Blauw <br /> <input type="checkbox" name="kleur[2]" value="Wit"> Wit <br /> <input type="checkbox" name="kleur[3]" value="Zwart"> Zwart <br /> <br /> Operating System:<br /> <input type="checkbox" name="os[1]" value="Android"> Android <br /> <input type="checkbox" name="os[2]" value="Apple iOS"> Apple iOS <br /> </div> <div id="myResponse">Here should be the result</div> jQuery function updateTextArea() { var allVals = []; $('#c_b :checked').each(function() { allVals.push($(this).val()); }); var dataString = $(allVals).serialize(); $.ajax({ type:'POST', url:'/wp-content/themes/u-design/filteropties.php', data: dataString, success: function(data){ $('#myResponse').html(data); } }); } $(document).ready(function() { $('#c_b input').click(updateTextArea); updateTextArea(); }); PHP //Just to see if the var passing works echo var_export($_POST);

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  • Is my method for avoiding dynamic_cast<> faster than dynamic_cast<> itself ?

    - by ereOn
    Hi, I was answering a question a few minutes ago and it raised to me another one: In one of my projects, I do some network message parsing. The messages are in the form of: [1 byte message type][2 bytes payload length][x bytes payload] The format and content of the payload are determined by the message type. I have a class hierarchy, based on a common class Message. To instanciate my messages, i have a static parsing method which gives back a Message* depending on the message type byte. Something like: Message* parse(const char* frame) { // This is sample code, in real life I obviously check that the buffer // is not NULL, and the size, and so on. switch(frame[0]) { case 0x01: return new FooMessage(); case 0x02: return new BarMessage(); } // Throw an exception here because the mesage type is unknown. } I sometimes need to access the methods of the subclasses. Since my network message handling must be fast, I decived to avoid dynamic_cast<> and I added a method to the base Message class that gives back the message type. Depending on this return value, I use a static_cast<> to the right child type instead. I did this mainly because I was told once that dynamic_cast<> was slow. However, I don't know exactly what it really does and how slow it is, thus, my method might be as just as slow (or slower) but far more complicated. What do you guys think of this design ? Is it common ? Is it really faster than using dynamic_cast<> ? Any detailed explanation of what happen under the hood when one use dynamic_cast<> is welcome !

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  • problem with image gallery using fancybox jquery

    - by Alexander
    I am trying to use fancybox for one of my image galery and my code is the following.. this is the code for my Gallery.aspx where it inherits from a master page... For some reason it doesn't work.. can you guys tell me what the problem is? <%@ Page Title="" Language="C#" MasterPageFile="~/Global.Master" AutoEventWireup="true" CodeBehind="Gallery.aspx.cs" Inherits="Permias.Gallery" %> <asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server"> <script src="jquery.js" type="text/javascript"></script> <script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script> <script type="text/javascript" src="./fancybox/jquery.fancybox-1.3.1.pack.js"></script> <script type="text/javascript" src="./fancybox/jquery.easing-1.3.pack.js"></script> <script type="text/javascript" src="./fancybox/jquery.mousewheel-3.0.2.pack.js"></script> <link rel="stylesheet" href="./fancybox/jquery.fancybox-1.3.1.css" type="text/css" media="screen" /> </asp:Content> <asp:Content ID="Content3" ContentPlaceHolderID="splash" runat="server"> <div id="splash">&nbsp;</div> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server"> <a class="grouped_elements" rel="group1" href="http://farm5.static.flickr.com/4058/4252054277_f0fa91e026.jpg"><img src="http://farm5.static.flickr.com/4058/4252054277_f0fa91e026.jpg" alt=""/></a> </asp:Content>

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