Search Results

Search found 42090 results on 1684 pages for 'mean square method'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 113/1684 | < Previous Page | 109 110 111 112 113 114 115 116 117 118 119 120  | Next Page >

  • PyQt4.QtWebKit.QWebFrame missing findAllElements() method on debian

    - by user249095
    I recompiled PyQt4 from source, but the issue still exists. On another ArchLinux system, it works well. Can someone help me? Thanks! on Debian: import PyQt4.QtWebKit dir(PyQt4.QtWebKit.QWebFrame.findAllElements) Traceback (most recent call last): File "", line 1, in AttributeError: type object 'QWebFrame' has no attribute 'findAllElements' on ArchLinux: import PyQt4.QtWebKit dir(PyQt4.QtWebKit.QWebFrame.findAllElements) ['__call__', '__class__', '__cmp__', '__delattr__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__le__', '__lt__', '__module__', '__name__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__self__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__']

    Read the article

  • Registry ReadString method is not working in Windows 7 in Delphi 7

    - by Tofig Hasanov
    The following code sample used to return me windows id before, but now it doesn't work, and returns empty string, dunno why. function GetWindowsID: string; var Registry: TRegistry; str:string; begin Registry := TRegistry.Create(KEY_WRITE); try Registry.Lazywrite := false; Registry.RootKey := HKEY_LOCAL_MACHINE; // Registry.RootKey := HKEY_CURRENT_USER; if CheckForWinNT = true then Begin if not Registry.OpenKeyReadOnly('\Software\Microsoft\Windows NT\CurrentVersion') then showmessagE('cant open'); end else Registry.OpenKeyReadOnly('\Software\Microsoft\Windows\CurrentVersion'); str := Registry.ReadString('ProductId'); result:=str; Registry.CloseKey; finally Registry.Free; end; // try..finally end; Anybody can help?

    Read the article

  • lubridate error message 'incompatible method's when trying date arithmetic

    - by Sharon
    I'm trying to learn lubridate. The lubridate documentation shows: date <- ceiling_date(date, "month") - days(1) [1] "2010-05-31 UTC for date arithmetic. But if I try mytoday <- now() first_of_month <- floor_date(mytoday, "month") first_of_month_last_year <- first_of_month - years(1) to use date arithmetic to get the first of the month a year earlier I get an error message Warning message: Incompatible methods ("-.POSIXt", "Ops.ordered") for "-" Any ideas what I'm doing wrong? Thanks.

    Read the article

  • C# yield in nested method

    - by Fastidious
    If I step through the following code the call to ReturnOne() is skipped. static IEnumerable<int> OneThroughFive() { ReturnOne(); yield return 2; yield return 3; yield return 4; yield return 5; } static IEnumerator<int> ReturnOne() { yield return 1; } I can only assume that the compiler is stripping it out because what I'm doing is not valid. I'd like the ability to isolate my enumeration into various methods. Is this possible?

    Read the article

  • Django QuerySet filter method returns multiple entries for one record

    - by Yaroslav
    Trying to retrieve blogs (see model description below) that contain entries satisfying some criteria: Blog.objects.filter(entries__title__contains='entry') The results is: [<Blog: blog1>, <Blog: blog1>] The same blog object is retrieved twice because of JOIN performed to filter objects on related model. What is the right syntax for filtering only unique objects? Data model: class Blog(models.Model): name = models.CharField(max_length=100) def __unicode__(self): return self.name class Entry(models.Model): title = models.CharField(max_length=100) blog = models.ForeignKey(Blog, related_name='entries') def __unicode__(self): return self.title Sample data: b1 = Blog.objects.create(name='blog1') e1 = Entry.objects.create(title='entry 1', blog=b1) e1 = Entry.objects.create(title='entry 2', blog=b1)

    Read the article

  • Method to capture a screenshot of user's browser to aid in bug reporting

    - by Buzz
    I'm looking for a way to make it easy for technically unsophisticated users to submit screenshots of their browser to me, to aid in debugging web application problems. There will be a button on all pages inside a web application they can use to report problems, which I would like to submit a screenshot (among other things). http://www.snapabug.com/ is very close to what I want, but I need to be able to customize a few things that service won't let me. Production environment is LAMP. I expect there must be something Flash-based that can do this, but I've not been able to find something. Thanks!

    Read the article

  • django deleting models and overriding delete method

    - by Mike
    I have 2 models class Vhost(models.Model): dns = models.ForeignKey(DNS) user = models.ForeignKey(User) extra = models.TextField() class ApplicationInstalled(models.Model): user = models.ForeignKey(User) added = models.DateTimeField(auto_now_add=True) app = models.ForeignKey(Application) ver = models.ForeignKey(ApplicationVersion) vhost = models.ForeignKey(Vhost) path = models.CharField(max_length=100, default="/") def delete(self): # # remove the files # print "need to remove some files" super(ApplicationInstalled, self).delete() If I do the following >>> vhost = Vhost.objects.get(id=10) >>> vhost.id 10L >>> ApplicationInstalled.objects.filter(vhost=vhost) [<ApplicationInstalled: http://wiki.jy.com/>] >>> vhost.delete() >>> ApplicationInstalled.objects.filter(vhost=vhost) [] As you can see there is an applicationinstalled object linked to vhost but when I delete the vhost, the applicationinstalled object is gone but the print never gets called. Any easy way to do this without iterating through the objects in the vhost delete?

    Read the article

  • "The image <name> cannot be displayed because it contains errors" when using pchart Render method

    - by christophe-milard
    Hi, I am trying to use the pchart package (over php) to build (and directly display) graphs/charts. At this time, I am just trying to run their provided example (Example1.php), where I just have replaced the final: $Test-Render("example1.png"); by $Test-Stroke(); But When I do this, I get:" The image cannot be displayed because it contains errors" on the browser. If I leave the original "$Test-Render(...)" the generated image is OK. (but not sent) I have read that there is (was?) an issue with mozilla/Firefox browsers regarding images being required twice and the REFER URL, but when I browse at the pchart home page, I can use their "sanboxes" and get the result of my tests directly displayed on my browser (http://pchart.sourceforge.net/demo.php). ... So their must be a way (or a nice work around) to send the generated graphs directely to the browser successfuly. If your answer is to generate the image (i.e. use Render) and then send it afterwards, please but accurate on how to do this (how do I destroy the generated files automaticaly, permissions...) I am new to this, sorry advance if it's obvious...;-)

    Read the article

  • Fastest way to call a COM objects method without using a RCW

    - by Nathan W
    I'm trying to find the cleanest and fastest way for calling a COM objects methods. I was using a RCW for the object but every time a new version of the third party COM object comes out its GUID changes which then renders the RCW useless, so I had to change and start using Type mytype = Type.GetTypeFromProgID("MyCOMApp.Application"); so that every time a new version of the COM object comes out I don't have to recomplie and redeploy my app. At the moment I am using refelection like mytype.InvokeMemeber but I feel it is so slow compared to just calling the RCW. How does everyone else tackle the problem of changing 3rd party COM object versions, but still maintaining the speed of a RCW?

    Read the article

  • AS3 : RegExp exec method in loop problem

    - by Boun
    Hi everyone, I need some help about RegExp in AS3. I have a simple pattern : patternYouTube = new RegExp ( "v(?:\/|=)([A-Z0-9_-]+)", "gi" ); This pattern is looking for the youTube id video. For example : var tmpUrl : String; var result : Object; var toto : Array = new Array(); toto = [http://www.youtube.com/v/J-vCxmjCm-8&autoplay=1, http://www.youtube.com/v/xFTRnE1WBmU&autoplay=1]; var i : uint; for ( i = 0 ; i < toto.length ; i++) { tmpUrl = toto[i]; result = patternYouTube.exec ( tmpUrl ); if ( result.length != 0 && result != null ) { trace(result); } } When i == 0, it works perfectly. Flash returns me : v/J-vCxmjCm-8,J-vCxmjCm-8 When i == 1, it fails. Flash returns me : null When I revert the two strings in my array such as : toto = [ http://www.youtube.com/v/xFTRnE1WBmU&autoplay=1, http://www.youtube.com/v/J-vCxmjCm-8&autoplay=1 ]; When i == 0, it works perfectly : Flash returns me : xFTRnE1WBmU When i == 1, it fails : Flash returns me : null Do you have any idea about the problem in the loop ?

    Read the article

  • Best method of achieving bi-directional communication between Apple iPad "clients" and a Windows Ser

    - by user361910
    We are currently starting to build a client-server system which will see 10 or more Apple iPad client devices communicating to a central Windows server over a wireless LAN. We wanted to some existing plumbing (.NET remoting/WCF/web services/etc) that would allow us to implement a reliable, secure solution without having to start at a low level (e.g. sockets) and recreate the wheel. One of the major requirements that complicates this scenario is that unlike a traditional web service, the windows server needs to be able to arbitrarily notify the clients whenever certain events occur -- so it is not a simple request/response scenario like the web. Initially, we were going to use Windows clients, so our plan was to use the full-duplex mode of .NET WCF over HTTP|TCP. But now using the iPad, we don't have any of the WCF infrastructure. So my question is: what is the best way to allow an iPad and a Windows server to (securely) communicate over a LAN, with each device able to initiate communication to the other? Am I stuck writing low-level socket code? Thanks!

    Read the article

  • Jsf RichFaces autocomplete : get the String for autocomplete- method()

    - by JavaNullPointer
    Part of my xhmtl-Page: <rich:autocomplete autocompleteMethod="#{autocompletMit.searchbyName()}" mode="cachedAjax" fetchValue="#{controller.mitarbeiter.mitarbeiterName}" autocompleteList="#{autocompletMit.autocompleteList}" minChars="1" autofill="true" var="it" > <h:outputText value="#{it.mitarbeiterName}" style="font-weight:bold"/> </rich:autocomplete> Bean for my Autocomplete: @ManagedBean(name = "autocompletMit") @RequestScoped public class AutoCompleteMitarbeiter implements Serializable { @EJB private Transaktionssteuerung transakt; private List<String> autocompleteList = new ArrayList<String>(); String nameSearch; public List<String> searchbyName(Object o) { String test = (String) o; //always get here a NullPointerException List<Mitarbeiter> alleMitarbeiter = transakt.alleMitarbeiter(); for (Iterator<Mitarbeiter> it = alleMitarbeiter.iterator(); it.hasNext();) { if (it.next().getMitarbeiterName().startsWith(test)) { autocompleteList.add(it.next().getMitarbeiterName()); } } return autocompleteList; } I always get a NullPointerException for String test = (String) o; I dont know how to get the StringInput correctly from </rich:autocomplete>-Input....

    Read the article

  • Can I provide nil for the -dequeueReusableCellWithIdentifier: method?

    - by mystify
    dequeueReusableCellWithIdentifier: Returns a reusable table-view cell object located by its identifier. (UITableViewCell *)dequeueReusableCellWithIdentifier:(NSString *)identifier Parameters identifier A string identifying the cell object to be reused. By default, a reusable cell's identifier is its class name, but you can change it to any arbitrary value. Ok so if by default it's the class name, why should I put much brain force into thinking about an identifier? Could I provide just nil? Would it then use the class name? Or what did they try to say here? Must I make an NSString with the class name by myself and provide it as identifier?

    Read the article

  • EF OrderBy method doesn't work with joins

    - by dudeNumber4
    Following works (ordered by name): from t in context.Table1.OrderBy( "it.Name" ) select t This doesn't work (no ordering): from t in context.Table1.OrderBy( "it.Name" ) join t2 in context.Table2 on t.SomeId equals t2.SomeId select t Nor does this (trying to reference the parent table to order): from t in context.Table1 join t2 in context.Table2.OrderBy( "it.Table1.Name" ) on t.SomeId equals t2.SomeId select t Nor does this (trying to order on the child table): from t in context.Table1 join t2 in context.Table2.OrderBy( "it.ChildName" ) on t.SomeId equals t2.SomeId select t How do I cause OrderBy not to be ignored while joining?

    Read the article

  • PHP's PDO Prepare Method Fails While in a Loop

    - by Andrew G. Johnson
    Given the following code: // Connect to MySQL up here $example_query = $database->prepare('SELECT * FROM table2'); if ($example_query === false) die('prepare failed'); $query = $database->prepare('SELECT * FROM table1'); $query->execute(); while ($results = $query->fetch()) { $example_query = $database->prepare('SELECT * FROM table2'); if ($example_query === false) die('prepare failed'); //it will die here } I obviously attempt to prepare statements to SELET everything from table2 twice. The second one (the one in the WHILE loop) always fails and causes an error. This is only on my production server, developing locally I have no issues so it must be some kind of setting somewhere. My immediate thought is that MySQL has some kind of max_connections setting that is set to 1 and a connection is kept open until the WHILE loop is completed so when I try to prepare a new query it says "nope too many connected already" and shits out. Any ideas? EDIT: Yes I know there's no need to do it twice, in my actual code it only gets prepared in the WHILE loop, but like I said that fails on my production server so after some testing I discovered that a simple SELECT * query fails in the WHILE loop but not out of it. The example code I gave is obviously very watered down to just illustrate the issue.

    Read the article

  • Suggest a good method with least lookup time complexity

    - by Amrish
    I have a structure which has 3 identifier fields and one value field. I have a list of these objects. To give an analogy, the identifier fields are like the primary keys to the object. These 3 fields uniquely identify an object. Class { int a1; int a2; int a3; int value; }; I would be having a list of say 1000 object of this datatype. I need to check for specific values of these identity key values by passing values of a1, a2 and a3 to a lookup function which would check if any object with those specific values of a1, a2 and a3 is present and returns that value. What is the most effective way to implement this to achieve a best lookup time? One solution I could think of is to have a 3 dimensional matrix of length say 1000 and populate the value in it. This has a lookup time of O(1). But the disadvantages are. 1. I need to know the length of array. 2. For higher identity fields (say 20), then I will need a 20 dimension matrix which would be an overkill on the memory. For my actual implementation, I have 23 identity fields. Can you suggest a good way to store this data which would give me the best look up time?

    Read the article

  • Preferred method to reload page with JavaScript?

    - by Mel
    Hey Guys, which way to reload a current page (using a button) would you prefer? <input type="button" value="Reload" onClick="history.go(0)"> <input type="button" value="Reload" onClick="location.reload(true)"> <input type="button" value="Reload" onClick="window.location.reload(true)"> <input type="button" value="Reload" onClick="window.location.href=window.location.href"> <input type="button" value="Reload" onClick="document.location.reload(true)"> <input type="button" value="Reload" onClick="document.location.href=document.location.href"> As the URL of the page changes frequently AFAIK a 'fallback function' like <a href="urlOfCurrentPage.html" onclick="window.location.reload(true);return false;">Reload</a> won't work for me, right?

    Read the article

  • Calculate time of method execution and send to WCF service async

    - by Tim
    I need to implement time calculation for repository methods in my asp .net mvc project classes. The problem is that i need to send time calculation data to WCF Service which is time consuming. I think about threads which can help to cal WCF service asynchronously. But I have very little experience with it. Do I need to create new thread each time or I can create a global thread, if so then how? I have something like that: StopWatch class public class StopWatch { private DateTime _startTime; private DateTime _endTime; public void Start() { _startTime = DateTime.Now; } protected void StopTimerAndWriteStatistics() { _endTime = DateTime.Now; TimeSpan timeResult = _endTime - _startTime; //WCF proxy object var reporting = AppServerUtility.GetProxy<IReporting>(); //Send data to server reporting.WriteStatistics(_startTime, _endTime, timeResult, "some information"); } public void Stop() { //Here is the thread I have question with var thread = new Thread(StopTimerAndWriteStatistics); thread.Start(); } } Using of StopWatch class in Repository public class SomeRepository { public List<ObjectInfo> List() { StopWatch sw = new StopWatch(); sw.Start(); //performing long time operation sw.Stop(); } } What am I doing wrong with threads?

    Read the article

  • problem with AddSort method

    - by netNewbi3
    Hi Could you let me know what the proboem is with sorting in this code? It doesn't work. My xml: CONTRACTS --CONTRACT ---SUPPLIER ---COMMODITIES ----COMMODITY -----COMODDITYNAME My code: Dim myString As StringBuilder = New StringBuilder(200) Dim xdoc As New XPathDocument("local_xml.xml") Dim nav As XPathNavigator = xdoc.CreateNavigator() Dim expr As XPathExpression expr = nav.Compile("/pf:CONTRACTS/pf:CONTRACT") Dim namespaceManager As XmlNamespaceManager = New XmlNamespaceManager(nav.NameTable) namespaceManager.AddNamespace("pf", "http://namespace.ac.uk/") expr.AddSort("pf:SUPPLIER", XmlSortOrder.Ascending, XmlCaseOrder.None, String.Empty, XmlDataType.Text) expr.SetContext(namespaceManager) Dim nodes As XPathNodeIterator = nav.Select(expr) If nodes.Count > 0 Then myString.AppendLine("<table width='96%' border='0' cellpadding='0' cellspacing='0' border='0' class='datatable1'>") myString.AppendLine("<th width='35%'>Name</th><th width='35%'>Commodity</th><th width='20%'>Supplier</a></th>") While nodes.MoveNext() Dim node As XPathNavigator = nodes.Current.SelectSingleNode("pf:NAME", namespaceManager) Dim supplier As XPathNavigator = nodes.Current.SelectSingleNode("pf:SUPPLIER", namespaceManager) Dim commodity As XPathNavigator = nodes.Current.SelectSingleNode("pf:COMMODITIES/pf:COMMODITY/pf:COMMODITYNAME", namespaceManager) Dim sChars As String = " " myString.AppendLine("<tr>") myString.AppendLine("<td>") myString.AppendLine(node.ToString()) myString.AppendLine("</td>") myString.AppendLine("<td>") myString.AppendLine(commodity.ToString()) myString.AppendLine("</td>") myString.AppendLine("<td>") myString.AppendLine(supplier.ToString()) myString.AppendLine("</td>") myString.AppendLine("</tr>") End While myString.AppendLine("</table>") Dim strOutput As String = myString.ToString() lblOutput.Text = strOutput Else lblOutput.Text = "No results for your search<br/>" End If

    Read the article

  • Ruby Detect method

    - by JZ
    Select makes sense. But can someone explain .detect to me? I don't understand these data. >> [1,2,3,4,5,6,7].detect { |x| x.between?(3,4) } => 3 >> [1,2,3,4,5,6,7].detect { |x| x.between?(3,6) } => 3 >> [1,2,3,4,5,6,7].detect { |x| x.between?(3,7) } => 3 >> [1,2,3,4,5,6,7].detect { |x| x.between?(2,7) } => 2 >> [1,2,3,4,5,6,7].detect { |x| x.between?(1,7) } => 1 >> [1,2,3,4,5,6,7].detect { |x| x.between?(6,7) } => 6 >> [1,2,3,4,5,6,7].select { |x| x.between?(6,7) } => [6, 7] >> [1,2,3,4,5,6,7].select { |x| x.between?(1,7) } => [1, 2, 3, 4, 5, 6, 7]

    Read the article

  • [Method Error 500] in Cascading dropdown update in Ajax Control Toolkit

    - by Vinni
    I am getting [MethodError 500] when I use cascading drop down. below is my code <tr> <td > Select a Hoster: </td> <td> <asp:DropDownList ID="ddlFeaturedHoster" runat="server" ></asp:DropDownList> </td> </tr> <ajaxToolkit:CascadingDropDown ID="cddHoster" runat="server" TargetControlID="ddlFeaturedHoster" PromptText="Select a Hoster" LoadingText="Loading ..." Category="ActiveHoster" ServiceMethod="GetDropDownContents" ServicePath="~/Hosting/HostingService.asmx"/> Service Code: [WebMethod] [ScriptMethod] public CascadingDropDownNameValue[] GetActiveHosters() { List<CascadingDropDownNameValue> returnList = new List<CascadingDropDownNameValue>(); HostersManager hosterManager = new HostersManager(); List<Hosters_HostingProviderDetail> hosters = hosterManager.GetAllHosters(); returnList.Add(new CascadingDropDownNameValue("--Please Select One--","0",true)); foreach (Hosters_HostingProviderDetail item in hosters) { returnList.Add(new CascadingDropDownNameValue() { name=item.HostingProviderName, value= item.HosterID.ToString()}); } return returnList.ToArray() ; } [WebMethod] [ScriptMethod] public CascadingDropDownNameValue[] GetDropDownContents(string knownCategoryValues, string category) { knownCategoryValues = FormatCategoryWord(knownCategoryValues); List<CascadingDropDownNameValue> values = new List<CascadingDropDownNameValue>(); HostersManager hosterManager = new HostersManager(); switch (category) { case "ActiveHoster": values.AddRange(GetActiveHosters()); break; case "ActiveOffer": values.AddRange(GetActiveOffers(1)); break; } return values.ToArray<CascadingDropDownNameValue>(); } /// <summary> /// Formats the category word /// </summary> /// <param name="value"></param> /// <returns></returns> private string FormatCategoryWord(string value) { if (string.IsNullOrEmpty(value)) return value; if (value.LastIndexOf(":") > 0) value = value.Substring(value.LastIndexOf(":") + 1); if (value.LastIndexOf(";") > 0) value = value.Substring(0, value.LastIndexOf(";")); return value; } }

    Read the article

  • How to cache method results in .Net

    - by SP
    Using webmethods, caching the results is pretty straight forward using "CacheDuration" attribute. Is there a similar "easy" way to cache non-webmethod outputs (or static methods) based on the parameters? I would appreciate any help. Thanks in advance!

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 109 110 111 112 113 114 115 116 117 118 119 120  | Next Page >