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  • Polymorphic Behavior in VB6

    - by Tom Tresansky
    I recently noticed the CallByName keyword in VB6. Since this takes a object, procedure name, "call type" and arguments array, can this be used to "fake" some types of polymorphic behavior? I can make 2 classes, class A and B, each with the same method Foo, and do: Dim list As New Collection Dim instanceA As New ClassA Dim instanceB As New ClassB Dim current As Object Call list.Add(instanceA) Call list.Add(instanceB) For Each current in list Call CallByName(current, "methodName", vbMethod) Next Anyone done this before? Problems? Horrible idea or genius idea? Implications? Unintended consequences?

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  • Why the property is not called on Binding in WPF?

    - by azamsharp
    I am not sure why the property is not being called on Binding. Here is the code: <myusercontrol Text ="{Binding Description, UpdateSourceTrigger=LostFocus,Mode=TwoWay, ValidatesOnDataErrors=True}" IsReadOnly ="{Binding AllowEditing}" /> And here is the myusercontrol IsReadOnly property: public static DependencyProperty IsReadOnlyProperty = DependencyProperty.Register("IsReadOnly", typeof (bool), typeof ( myusercontrol)); public bool IsReadOnly { get { return ((bool) GetValue(IsReadOnlyProperty)); } set { MessageBox.Show(value.ToString()); SetValue(IsReadOnlyProperty, !value); OnPropertyChanged("IsReadOnly"); } } The message box is never displayed! Any ideas!

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  • Can I import sql with php?

    - by shin
    Please bear with me(beginner). I am planning to set up an application where visitors can login and play/mess around with my application. So I want to refresh my php application once a day with a cron job. But I never wrote a cron job script before. I understand that I have to truncate all the tables/data and add the initial data. With phpmyadmin, I can import data. Is there any way I can import sql file after truncate the tables? What is the best way? Do I have to create table and insert all data? Help and resources will be appreciated. Thanks in advance.

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  • UIAlertView crashing on undocumented method

    - by morticae
    Our app has been crashing with a frequency of roughly 1 in 1,500 launches due to a bug that is proving elusive. The relevant portion of the stack trace is included. It's being fired as a callback so I have no reference for where it's occurring in my own code. It looks like what's going on is there is a UIViewAnimationState object that is calling UIAlertView's private method (_popoutAnimationDidStop:finished:). Only problem is, it appears the UIAlertView has been dealloced by this point. I don't do anything weird with alert views. I throw them up, and I wait for user input. They are all shown before being released. Anyone encountered this? At this point, I'm leaning toward it being an Apple bug. Thread 0 Crashed: 0 libobjc.A.dylib 0x3138cec0 objc_msgSend + 24 1 UIKit 0x326258c4 -[UIAlertView(Private) _popoutAnimationDidStop:finished:] 2 UIKit 0x324fad70 -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] 3 UIKit 0x324fac08 -[UIViewAnimationState animationDidStop:finished:] 4 QuartzCore 0x311db05c run_animation_cal lbacks

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  • Unauthorized Sharepoint WSDL from Coldfusion 8

    - by antony.trupe
    How do I solve the error: Unable to read WSDL from URL: https://workflowtest.site.edu/_vti_bin/Lists.asmx?WSDL. Error: 401 Unauthorized. I can successfully view the WSDL from the browser using the same user account. I'm not sure which authentication is being used (Basic or Integrated). How would I find that out? The code making the call is: <cfinvoke username="username" password="password" webservice="https://workflowtest.liberty.edu/_vti_bin/Lists.asmx?WSDL" method="GetList" listName="{CB02EB71-392E-4906-B512-8EC002F72436}" > The impression I get is that coldfusion doesn't like being made to authenticate to get the WSDL. Full stack trace: coldfusion.xml.rpc.XmlRpcServiceImpl$CantFindWSDLException: Unable to read WSDL from URL: https://workflowtest.liberty.edu/_vti_bin/Lists.asmx?WSDL. at coldfusion.xml.rpc.XmlRpcServiceImpl.retrieveWSDL(XmlRpcServiceImpl.java:709) at coldfusion.xml.rpc.XmlRpcServiceImpl.access$000(XmlRpcServiceImpl.java:53) at coldfusion.xml.rpc.XmlRpcServiceImpl$1.run(XmlRpcServiceImpl.java:239) at java.security.AccessController.doPrivileged(Native Method) at coldfusion.xml.rpc.XmlRpcServiceImpl.registerWebService(XmlRpcServiceImpl.java:232) at coldfusion.xml.rpc.XmlRpcServiceImpl.getWebService(XmlRpcServiceImpl.java:496) at coldfusion.xml.rpc.XmlRpcServiceImpl.getWebServiceProxy(XmlRpcServiceImpl.java:450) at coldfusion.tagext.lang.InvokeTag.doEndTag(InvokeTag.java:413) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:2662) at cftonytest2ecfm1787185330.runPage(/var/www/webroot/tonytest.cfm:16) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:196) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:370) at coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65) at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:279) at coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:48) at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40) at coldfusion.filter.PathFilter.invoke(PathFilter.java:86) at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:70) at coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:74) at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28) at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38) at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:46) at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38) at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22) at coldfusion.CfmServlet.service(CfmServlet.java:175) at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89) at jrun.servlet.FilterChain.doFilter(FilterChain.java:86) at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42) at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46) at jrun.servlet.FilterChain.doFilter(FilterChain.java:94) at jrun.servlet.FilterChain.service(FilterChain.java:101) at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106) at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42) at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:286) at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543) at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:203) at jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:320) at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428) at jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:266) at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)

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  • most efficient method of turning multiple 1D arrays into columns of a 2D array

    - by Ty W
    As I was writing a for loop earlier today, I thought that there must be a neater way of doing this... so I figured I'd ask. I looked briefly for a duplicate question but didn't see anything obvious. The Problem: Given N arrays of length M, turn them into a M-row by N-column 2D array Example: $id = [1,5,2,8,6] $name = [a,b,c,d,e] $result = [[1,a], [5,b], [2,c], [8,d], [6,e]] My Solution: Pretty straight forward and probably not optimal, but it does work: <?php // $row is returned from a DB query // $row['<var>'] is a comma separated string of values $categories = array(); $ids = explode(",", $row['ids']); $names = explode(",", $row['names']); $titles = explode(",", $row['titles']); for($i = 0; $i < count($ids); $i++) { $categories[] = array("id" => $ids[$i], "name" => $names[$i], "title" => $titles[$i]); } ?> note: I didn't put the name = value bit in the spec, but it'd be awesome if there was some way to keep that as well.

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  • Binding Data to DataGridView in VB.Net

    - by Peter
    Hi, I have a bit of code which loads data from a stored procedure in MS SQL Server and then loads the data to a datagridview, which works fine. What i want is for the code that connects / loads the data to sit in my Database Class and then everything associated with the datagridview to be stored in my Form but i am having problems passing the contents of the bindingsource over to the Form from the Database Class. Form1 Public Class Form1 Dim myDatabaseObj As New Class1() Dim bindingSource1 As New BindingSource() Dim connectString As New SqlConnection Dim objDataAdapter As New SqlDataAdapter Dim table As New DataTable() Dim tabletest As New DataTable() Private Sub loadCompanyList() Try Me.dgv_CompanyList.DataSource = Me.bindingSource1 getCompanyList() Catch ex As NullReferenceException End Try End Sub Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load loadCompanyList() End Sub End Class Database Class When i try place the getCompanyList() in a class and then create a new object that references the Form() it does not seem to return any value from the table to the MyForm.BindingSource1.Datasource meaning my datagridview displays not data. ..... Private Sub getCompanyList() Try Dim myForm as new Form() connect_Transaction_Database() objDataAdapter.SelectCommand = New SqlCommand() objDataAdapter.SelectCommand.Connection = connectString objDataAdapter.SelectCommand.CommandText = "sp_GetCompanyList" objDataAdapter.SelectCommand.CommandType = CommandType.StoredProcedure Dim commandBuilder As New SqlCommandBuilder(Me.objDataAdapter) Dim table As New DataTable() table.Locale = System.Globalization.CultureInfo.InvariantCulture Me.objDataAdapter.Fill(table) **MyForm.bindingSource1.DataSource = table** Catch ex As DataException MsgBox(ex.Message) Catch ex As NullReferenceException MsgBox(ex.Message) End Try disconnect_Transaction_Database() End Sub If anyone could help. Thank you. Peter

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  • validation in php

    - by fusion
    i have a submit page in html. when i submit the form data, it goes to a php page, which inserts the data in the database. my question is how would i ensure that the data on the html page is not null or empty without using javascript? is there anyway this could be done in php? thanks!

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  • Building an array out of values from another array

    - by George
    This is a follow up from a question of mine that was just answered concerning parsing numbers in an array. I have an array, data[], with numbers that I'd like to use in a calculation and then put the resulting values into another array. So say data[0] = 100. I'd like to find a percentage using the calculatin, (data[0]/dataSum*100).toFixed(2) where dataSum is the sum of all the numbers in data[]. I've tried: dataPercentage = []; for (var i=0; i < data.length; i++) { data[i] = parseFloat(data[i]); dataSum += data[i]; // looping through data[i] and setting it equal to dataPercentage. dataPercentage[] = (data[i]/dataSum*100).toFixed(2); // thought maybe I was overriding dataPercentage everytime I looped? dataPercentage[] += (data[i]/dataSum*100).toFixed(2); } I also tried just setting dataPercentage = [(data/dataSum*100).toFixed(2)], but I think this creates a nested array, which I don't think is what I need.

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  • SharePoint - Auto-increment dates in new records?

    - by ACal
    Hello, I have a list that's going to be updated with relatively static data weekly, and I wanted to create a workflow to do this automatically. The only field I'm having trouble with is Start Date. I want the new Start Date to be exactly one week after the previous week's (row's) Start Date, but I can't figure out how to capture this. I can't seem to find an easy way to get the value of the previous row. Now, theoretically, I could just have the workflow run once a week on a given day and use [Today] as the value for the field; however, a requirement is that the list can be populated a few weeks in advance if needed. Thanks in advance for any help you can provide!

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  • PHP text formating: Detectng several symbols in a row

    - by ilnur777
    I have a kind of strange thing that I really nead for my text formating. Don't ask me please why I did this strange thing! ;-) So, my PHP script replaces all line foldings "\n" with one of the speacial symbol like "|". When I insert text data to database, the PHP script replaces all line foldings with the symbol "|" and when the script reads text data from the database, it replaces all special symbols "|" with line folding "\n". I want to restrict text format in the way that it will cut line foldings if there are more than 2 line foldings used in each separating texts. Here is the example of the text I want the script to format: this is text... this is text... this is text...this is text...this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... I want to restict format like: this is text... this is text... this is text...this is text...this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... this is text... So, at the first example there is only one line folding between 2 texts and on the second example there are 3 line foldings between 2 texts. How it can be possible to replace more than 2 line foldings symbols "|" if they are detected on the text? This is a kind of example I want the script to do: $text = str_replace("|||", "||", $text); $text = str_replace("||||", "||", $text); $text = str_replace("|||||", "||", $text); $text = str_replace("||||||", "||", $text); $text = str_replace("|||||||", "||", $text); ... $text = str_replace("||||||||||", "||", $text); $text = str_replace("|", "<br>", $text);

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  • LinkButton not firing OnClick event in Accordion

    - by lampej
    I have not been able to get the break point I have on LinkButtonDelete_Click to fire. Is there a trick to dealing with buttons inside of Accordions? Thank you. <cc1:Accordion ID="Accordion1" runat="server" DataSourceID="ObjectDataSource1" SelectedIndex="-1" RequireOpenedPane="false"> <HeaderTemplate> <asp:Label ID="LabelDisplayName" runat="server" Text='<%#Bind("FirstName") % >'></asp:Label> </HeaderTemplate> <ContentTemplate> <asp:LinkButton ID="LinkButtonDelete" runat="server" OnClick="LinkButtonDelete_Click" Text="Delete"></asp:LinkButton> ... </ContentTemplate> </cc1:Accordion> Public Sub LinkButtonDelete_Click(ByVal sender As Object, ByVal e As EventArgs) Dim button As LinkButton = CType(sender, LinkButton) ... End Sub

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  • Using C# to iterate form fields with same name

    - by itsatrp
    I have a section of a form that I need to handle differently from the rest of form results. In the section that needs special handling I need to iterate over 3 form fields that have the same name. They have to have the same name, I can't change it. The section of the form I am referring to looks something like this: <td><input name="Color" size="20" value="" type="text"></td> Using C# I try something like this: I try to handle it like this: int i; for (i = 1; i <= Request.Form["Color"][i]; i++) { colorName.Text += Request.Form["Color"]; } Which leads to the following exception: System.NullReferenceException: Object reference not set to an instance of an object. How should I be handling form fields with the same name?

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  • C# - Erase all property values from a class?

    - by John M
    In a C# Winforms (3.5) application I have added a class that contains many properties (get/set) used to stored values from a 12 form long process. After form 12 I would like wipe out all the property values in the storing class so that the next user won't accidentally record values when starting the process at form 1. Is it possible to erase/destroy/dispose of all property values in a class? My class looks like this: private static int battery; public int Battery { get { return storeInspectionValues.battery; } set { storeInspectionValues.battery = value; } }

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  • Restlets with Google App Engine, Java Server Pages, (JSP's), and Shiro authentication

    - by DutrowLLC
    I'm having difficulty integrating Restlets into my project. I'm using google app engine (GAE) and I also have some java server pages (JSPs) set up. The JSP's never seem to work at the same time as the Restlets, should I only be using one or the other in GAE? I'm also using Shiro (formerly Ki, formerly JSecurity) and I have been unable to get Restlets to work with Shiro's filter for authentication. Are there any issues in particular that I should be aware of? What are other people using to secure restlet apps on GAE? Is Shiro overkill if I just need authentication and some role-based authorization? Thanks so much! Chris

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  • Django TestCase testing order

    - by ziang
    If there are several methods in the test class, I found that the order to execute is alphabetical. But I want to customize the order of execution. How to define the execution order? For example: testTestA will be loaded first than testTestB. class Test(TestCase): def setUp(self): ... def testTestB(self): #test code def testTestA(self): #test code

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  • Android - TimePicker selecting the button and input field

    - by teepusink
    Hi, I'm trying to modified the way TimePicker works as asked in my question here http://stackoverflow.com/questions/2580216/android-timepicker-minutes-to-15 To be able to do that I need to know if the + and - button was clicked and to disable the input field. So can I target the elements in a TimePicker? (i.e the + and - button and the input field)? Also is there anyway to determine if the + or the - button was clicked? Thanks, Tee

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  • Java: how to get all subdirs recursively?

    - by HH
    Before debugging the late-hour-out-of-bound-recursive-function: is there a command to get subdirs? giveMeSubDirs(downToPath)? // WARNING: RECURSION out of bound public HashSet<FileObject> getAllDirs(String path) { HashSet<FileObject> checkedDirs = new HashSet<FileObject>(); HashSet<FileObject> allDirs = new HashSet<FileObject>(); String startingPath = path; File fileThing = new File(path); FileObject fileObject = new FileObject(fileThing); for (FileObject dir : getDirsInDir(path)) { // SUBDIR while ( !checkedDirs.contains(dir) && !(getDirsInDir(dir.getFile().getParent()).size() == 0)) { // DO NOT CHECK TOP DIRS if any bottom dir UNCHECKED! while ( uncheckedDirsOnLevel(path, checkedDirs).size() > 0) { while (getDirsInDir(path).size() == 0 || (numberOfCheckedDirsOnLevel(path, checkedDirs)==getDirsInDir(path).size())) { allDirs.add(new FileObject(new File(path))); checkedDirs.add(new FileObject(new File(path))); if(traverseDownOneLevel(path) == startingPath ) return allDirs; //get nearer to the root path = traverseDownOneLevel(path); } path = giveAnUncheckedDir(path, checkedDirs); if ( path == "NoUnchecked.") { checkedDirs.add(new FileObject( (new File(path)).getParentFile() )); break; } } } } return allDirs; }

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  • Overriding content_type for Rails Paperclip plugin

    - by Fotios
    I think I have a bit of a chicken and egg problem. I would like to set the content_type of a file uploaded via Paperclip. The problem is that the default content_type is only based on extension, but I'd like to base it on another module. I seem to be able to set the content_type with the before_post_process class Upload < ActiveRecord::Base has_attached_file :upload before_post_process :foo def foo logger.debug "Changing content_type" #This works self.upload.instance_write(:content_type,"foobar") # This fails because the file does not actually exist yet self.upload.instance_write(:content_type,file_type(self.upload.path) end # Returns the filetype based on file command (assume it works) def file_type(path) return `file -ib '#{path}'`.split(/;/)[0] end end But...I cannot base the content type on the file because Paperclip doesn't write the file until after_create. And I cannot seem to set the content_type after it has been saved or with the after_create callback (even back in the controller) So I would like to know if I can somehow get access to the actual file object (assume there are no processors doing anything to the original file) before it is saved, so that I can run the file_type command on that. Or is there a way to modify the content_type after the objects have been created.

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  • unrecognized selector sent to instance

    - by iamsmug
    My app works fine in the simulator but when I run it on my phone I get this error: 2010-04-05 21:32:45.119 Top Banana[119:207] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[MethodViewController setReferringObject:]: unrecognized selector sent to instance 0x16e930' It happens here: -(void)method { [UIView beginAnimations:@"View Flip" context:nil]; [UIView setAnimationDuration:0.50]; [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; [UIView setAnimationTransition: UIViewAnimationTransitionFlipFromRight forView:self.navigationController.view cache:NO]; MethodViewController *methodViewController = [[MethodViewController alloc] initWithNibName:@"MethodViewController" bundle:0]; NSManagedObject *selectedObject = self.referringObject; methodViewController.referringObject = selectedObject; [self.navigationController pushViewController:methodViewController animated:NO]; methodViewController.title = @"Method"; [UIView commitAnimations]; [MethodViewController release]; } It crashes on this line: methodViewController.referringObject = selectedObject; Not sure how to resolve this as it works in the simulator, I'm sure it is fairly basic to fix, any help will be appreciated.

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  • Exposing a service to external systems - How should I design the contract?

    - by Larsi
    Hi! I know this question is been asked before here but still I'm not sure what to select. My service will be called from many 3 party system in the enterprise. I'm almost sure the information the service will collect (MyBigClassWithAllInfo) will change during the products lifetime. Is it still a good idea to expose objects? This is basically what my two alternatives: [ServiceContract] public interface ICollectStuffService { [OperationContract] SetDataResponseMsg SetData(SetDataRequestMsg dataRequestMsg); } // Alternative 1: Put all data inside a xml file [DataContract] public class SetDataRequestMsg { [DataMember] public string Body { get; set; } [DataMember] public string OtherPropertiesThatMightBeHandy { get; set; } // ?? } // Alternative 2: Expose the objects [DataContract] public class SetDataRequestMsg { [DataMember] public Header Header { get; set; } [DataMember] public MyBigClassWithAllInfo ExposedObject { get; set; } } public class SetDataResponseMsg { [DataMember] public ServiceError Error { get; set; } } The xml file would look like this: <?xml version="1.0" encoding="utf-8"?> <Message>   <Header>     <InfoAboutTheSender>...</InfoAboutTheSender>   </Header>   <StuffToCollectWithAllTheInfo>   <stuff1>...</stuff1> </StuffToCollectWithAllTheInfo> </Message> Any thought on how this service should be implemented? Thanks Larsi

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  • DAQ Triggers in Matlab

    - by RidePlanet
    I'm writing a program that detects the speed of a object by hall effect sensors that are run into MATLAB through a DAQ (MCC USB-1408FS) The problem that has arisen is that I'm using a non-stop scan technique to detect the state of one of 3 sensors. Unfortunately this means that unless the object is rotating past each sensor at the exact rate the program runs, I will see an instantaneous speed (done by comparing the time between two sensors) of zero. I need the sensors to signal the program to count when they are hit, instead of constantly scanning for the signal. How can this be done?

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