php regex is not escaped
- by David
what is a regex to find any text that has 'abc' but does not have a '\' before it. so it should match 'jfdgabc' but not 'asd\abc'. basically so its not escaped.
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How to mark that a lgpl library is modified
- by David Göransson
I am using an LGPL library in my code. For my needs, I need to modify the code in the library. How do I mark the jar file that it contains modified code? Some txt file in the jar? In that case, what do I write in the txt file? I will include in the license agreement that we are distributing a modified version of the jar, but my question is about marking the jar itself.Read the article
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Problem with auto page break in iReport
- by David Reniz
Hi... I'm using iReport 3.7. I have a report with two subreports (order details and some selling statistics), and a grouping by seller. One subreport is located in the Detail band of the group, and the other one is in the group footer. What's really odd is that no matter how long the report is, when I export it to PDF it's always one page long. Is there something I'm missing? Thanks in advance.Read the article
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CKEditor plugin to close editor
- by David Lawson
The problem with destroying the editor from within a plugin, is that certain code tries to use the editor after the destructive plugin code, when in fact the editor is no longer there, causing errors and instability. I have come up with the following code for a plugin which closes the editor using both async:true and setTimeout: var cancelAddCmd = { modes : { wysiwyg:1, source:1 }, async: true, exec : function( editor ) { if(confirm('Are you sure you want to cancel editing and discard all content?')) setTimeout(function() { editor.destroy(); }, 100); } }; The problem I see is that it uses a dodgy setTimout call that would likely have mixed results depending on the computer's speed of execution - 100ms might not have passed by the time it would be OK to destroy the editor. Is there a proper way to destroy the editor from within a plugin? Even with async: true; and no setTimeout errors are created. Maybe a possible solution would be to stop any existing/any more code related to the editor from running afterwards, if possible? I have tried using events, like on('afterCommandExec', function(){ editor.destroy(); }) and some other events, but that hasn't helped much... doesn't seem like there is an event for when the editor has jumped out of its stack call for handling the button. And there is no way to stop execution by disposing of the CKEditor instance more properly?Read the article
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Jquery using append with effects
- by David King
how can I use .append with effects like show('slow') having effects on append doesnt seems to work at all. and it give results as normal show() no transitions, no animations. How Can I append one div to another. and have a slideDown or Show('slow') effect on it?Read the article
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WCF - Passing CurrentPrincipal in the Header
- by David Ward
I have a WCF service that needs to know the Principal of the calling user. In the constructor of the service I have: Principal = OperationContext.Current.IncomingMessageHeaders.GetHeader<MyPrincipal>("myPrincipal", "ns"); and in the calling code I have something like: using (var factory = new ChannelFactory<IMyService>(localBinding, endpoint)) { var proxy = factory.CreateChannel(); using (var scope = new OperationContextScope((IContextChannel)proxy)) { var customHeader = MessageHeader.CreateHeader("myPrincipal", "ns", Thread.CurrentPrincipal); OperationContext.Current.OutgoingMessageHeaders.Add(customHeader); newList = proxy.CreateList(); } } This all works fine. My question is, how can I avoid having to wrap all proxy method calls in the using (var scope...{ [create header and add to OperationContext]? Could I create a custom ChannelFactory that will handle adding the myPrincipal header to the operation context? Something like that would save a whole load of copy/paste which I'd rather not do but I'm not sure how to achieve it:) ThanksRead the article
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CSS - margin and float property
- by David Casillas
1.- We have a div with static positioning. Inside we have a parragraph with a margin. The heigth of the div will be the parragraph without the margin 2.- We have a div with float:left. Inside we have a parragraph with a margin. The heigth of the div will be the parragraph plus its margin. What is the explanation of this? Here is the html code and the CSS code. And here is a link to the test site. http://prueba.davidcasillas.es/ <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="es"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Untitled Document</title> <link href="index.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="nivel1"> <div id="nivel21"> <p>Este es el primer parrafo</p> </div> <div id="nivel22"> <p>Este es el primer parrafo</p> </div> </div> </body> </html> body { margin:0; padding:0; } #nivel1 { border:solid; border-color:#333; margin:0; background-color:#0F3; margin:2em; } #nivel21 { margin:2em; float:left; background-color:#C00; } #nivel22 { margin:2em; background-color:#FC0; }Read the article
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Setting width of UISegmentedControl after removing a segment
- by David Foster
I have a UISegmentedControl of width 280. In code, I need to remove the third segment, set the UISegmentedControl's width to 200 and then re-centralise. By configuring the springs and struts in IB, I have set the segmented control up such that when I set the width directly it will automatically re-centre. However, when setting the width in code, is it true I need to set it via -setFrame? If this is the case, then I also need to set its X origin, which renders my auto-centralising redundant. My code: [segmentedControl removeSegmentAtIndex:2 animated:NO]; [segmentedControl setFrame:CGRectMake(segmentedControl.frame.origin.x + ((segmentedControl.frame.size.width - TWO_SEGMENT_SEGMENTED_CONTROL_WIDTH) / 2), segmentedControl.frame.origin.y, TWO_SEGMENT_SEGMENTED_CONTROL_WIDTH, segmentedControl.frame.size.height)]; This works, but seems hugely overblown for my purposes. Is there really no simpler way to set solely the width of the control in code?Read the article
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Calling Web Page from Windows Service
- by David Moorhouse
I have a Windows 2008 server. This has an instance of IIS7 installed and a website, accessible only via an internal hostname defined in the the servers hosts file. e.g. the server IP is 10.0.6.11 and the hosts file contains an entry 10.0.6.11 hl7.ourname.org I would like to call a URL on the website, e.g "http://hl7.ourname.org/updatestatus" from a Windows service. I can call the web site from an instance of IE7 running on the server. However, if try to call it from a Windows service I get a "Socket Error # 10061 Connection refused." This looks like a permission issue. The service is running as "Network Service" ,but maybe I should be running as a different user. ThanksRead the article
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What is an integer overflow error?
- by David
What is an integer overflow error? why do i care about it? how can it be avoided?Read the article
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xCode "Property access results unused - getters should not be used for side effects"
- by David DelMonte
Hi all, I'm getting this warning when I'm calling a local routine. My code is this: -(void)nextLetter { // NSLog(@"%s", __FUNCTION__); currentLetter ++; if(currentLetter > (letters.count - 1)) { currentLetter = 0; } self.fetchLetter; } I'm getting the warning on the self.fetchLetter statement. That routine looks like this: - (void)fetchLetter { // NSLog(@"%s", __FUNCTION__); NSString *wantedLetter = [[letters objectAtIndex: currentLetter] objectForKey: @"langLetter"]; NSString *wantedUpperCase = [[letters objectAtIndex: currentLetter] objectForKey: @"upperCase"]; ..... } I prefer to fix warning messages, is there a better way to write this? Thanks!Read the article
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Link List Problem,
- by david
OK i have a problem with a Link List program i'm trying to Do, the link List is working fine. Here is my code #include <iostream> using namespace std; struct record { string word; struct record * link; }; typedef struct record node; node * insert_Node( node * head, node * previous, string key ); node * search( node *head, string key, int *found); void displayList(node *head); node * delete_node( node *head, node * previous, string key); int main() { node * previous, * head = NULL; int found = 0; string node1Data,newNodeData, nextData,lastData; //set up first node cout <<"Depature"<<endl; cin >>node1Data; previous = search( head, node1Data, &found); cout <<"Previous" <<previous<<endl; head = insert_Node(head, previous, node1Data); cout <<"Depature inserted"<<endl; //insert node between first node and head cout <<"Destination"<<endl; cin >>newNodeData; previous = search( head, newNodeData, &found); cout <<"Previous" <<previous<<endl; head = insert_Node(head, previous, newNodeData); cout <<"Destinationinserted"<<endl; //insert node between second node and head cout <<"Cost"<<endl; cin >>newNodeData; previous = search( head, newNodeData, &found); cout <<"Previous" <<previous<<endl; head = insert_Node(head, previous, newNodeData); cout <<"Cost inserted"<<endl; cout <<"Number of Seats Required"<<endl; //place node between new node and first node cin >>nextData; previous = search( head, nextData, &found); cout <<"Previous" <<previous<<endl; head = insert_Node(head, previous, nextData); cout <<"Number of Seats Required inserted"<<endl; //insert node between first node and head cout <<"Name"<<endl; cin >>newNodeData; previous = search( head, newNodeData, &found); cout <<"Previous" <<previous<<endl; head = insert_Node(head, previous, newNodeData); cout <<"Name inserted"<<endl; //insert node between node and head cout <<"Address "<<endl; cin >>newNodeData; previous = search( head, newNodeData, &found); cout <<"Previous" <<previous<<endl; head = insert_Node(head, previous, newNodeData); cout <<"Address inserted"<<endl; //place node as very last node cin >>lastData; previous = search( head, lastData, &found); cout <<"Previous" <<previous<<endl; head = insert_Node(head, previous, lastData); cout <<"C"<<endl; displayList(head); char Ans = 'y'; //Delete nodes do { cout <<"Enter Keyword to be delete"<<endl; cin >>nextData; previous = search( head, nextData, &found); if (found == 1) head = delete_node( head, previous,nextData); displayList(head); cout <<"Do you want to Delete more y /n "<<endl; cin >> Ans; } while( Ans =='y'); int choice, i=0, counter=0; int fclass[10]; int coach[10]; printf("Welcome to the booking program"); printf("\n-----------------"); do{ printf("\n Please pick one of the following option:"); printf("\n 1) Reserve a first class seat on Flight 101."); printf("\n 2) Reserve a coach seat on Flight 101."); printf("\n 3) Quit "); printf("\n ---------------------------------------------------------------------"); printf("\nYour choice?"); scanf("%d",&choice); switch(choice) { case 1: i++; if (i <10){ printf("Here is your seat: %d " , fclass[i]); } else if (i = 10) { printf("Sorry there is no more seats on First Class. Please wait for the next flight"); } break; case 2: if (i <10){ printf("Here is your Seat Coach: %d " , coach[i]); } else if ( i = 10) { printf("Sorry their is no more Seats on Coach. Please wait for the next flight"); } break; case 3: printf("Thank you and goodbye\n"); //exit(0); } } while (choice != 3); } /******************************************************* search function to return previous position of node ******************************************************/ node * search( node *head, string key, int *found) { node * previous, * current; current = head; previous = current; *found = 0;//not found //if (current->word < key) move through links until the next link //matches or current_word > key while( current !=NULL) { //compare exactly if (key ==current->word ) { *found = 1; break; } //if key is less than word else if ( key < current->word ) break; else { //previous stays one link behind current previous = current; current = previous -> link; } } return previous; } /******************************************************** display function as used with createList ******************************************************/ void displayList(node *head) { node * current; //current now contains the address held of the 1st node similar //to head current = head; cout << "\n\n"; if( current ==NULL) cout << "Empty List\n\n"; else { /*Keep going displaying the contents of the list and set current to the address of the next node. When set to null, there are no more nodes */ while(current !=NULL) { cout << current->word<<endl; current = current ->link; } } } /************************************************************ insert node used to position node (i) empty list head = NULL (ii) to position node before the first node key < head->word (iii) every other position including the end of the list This is done using the following steps (a) Pass in all the details to create the node either details or a whole record (b) Pass the details over to fill the node (C) Use the if statement to add the node to the list **********************************************************/ node * insert_Node( node * head, node * previous, string key ) { node * new_node, * temp; new_node = new node; //create the node new_node ->word = key; new_node -> link = NULL; if (head == NULL || key < head->word ) //empty list { //give address of head to temp temp = head; //head now points to the new_node head = new_node; //new_node now points to what head was pointing at new_node -> link = temp; } else { //pass address held in link to temp temp = previous-> link; //put address of new node to link of previous previous -> link = new_node; //pass address of temp to link of new node new_node -> link = temp; } return head; } node * delete_node( node *head, node * previous, string key) { /* this function will delete a node but will not return its contents */ node * temp; if(key == head->word) //delete node at head of list { temp = head; //point head at the next node head = head -> link; } else { //holds the address of the node after the one // to be deleted temp = previous-> link; /*assign the previous to the address of the present node to be deleted which holds the address of the next node */ previous-> link = previous-> link-> link; } delete temp; return head; }//end delete The problem i have is when i Enter in the Number 2 in the Node(Seats) i like to get a Counter Taken 2 off of 50, some thing like what i have here enter code here int choice, i=0, counter=0; int fclass[10]; int coach[10]; printf("Welcome to the booking program"); printf("\n-----------------"); do{ printf("\n Please pick one of the following option:"); printf("\n 1) Reserve a first class seat on Flight 101."); printf("\n 2) Reserve a coach seat on Flight 101."); printf("\n 3) Quit "); printf("\n ---------------------------------------------------------------------"); printf("\nYour choice?"); scanf("%d",&choice); switch(choice) { case 1: i++; if (i <10){ printf("Here is your seat: %d " , fclass[i]); } else if (i = 10) { printf("Sorry there is no more seats on First Class. Please wait for the next flight"); } break; case 2: if (i <10){ printf("Here is your Seat Coach: %d " , coach[i]); } else if ( i = 10) { printf("Sorry their is no more Seats on Coach. Please wait for the next flight"); } break; case 3: printf("Thank you and goodbye\n"); //exit(0); } } while (choice != 3); How can i get what the User enters into number of Seats into this functionRead the article
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Calculate Percentage help ORACLE L@@K
- by DAVID
Hi this code gives me employee salaries and manager salaries. SELECT E.EMP_FNAME AS MANAGER, E.EMP_SALARY, D.DEPT_NO, A.EMP_FNAME AS EMPLOYEE, A.EMP_SALARY FROM EMPLOYEE E, EMPLOYEE A, DEPARTMENT D WHERE E.EMP_NIN = A.EMP_MANAGER AND A.EMP_MANAGER = D.EMP_MANAGER; How can i only show the employees that have a salary within 10% of their manager salary?Read the article
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Graph spacing algorithm
- by David
Hi, I am looking for an algorithm that would be useful for determining x y coordinates for a number objects to display on screen. Each object can be related to another object and there can be any number of relationships and there can be any number of these objects. There is no restriction on the overall size of area on which to display these object. I am writing this in php and would be looking to store the coordinates in an array.Read the article
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How do I keep a CALayer, sublayer of a CATiledLayer, from changing it's scale after a zoom ?
- by David
I have a CATiledLayer that is used to display a PDF page (this CATiledLayer is the layer type of my UIView which is a subview of a UIScrollView). I want to add overlay markers on this page. So I add a sublayer to my CATiledLayer. This sublayer again hosts the different marker's layers and acts as a grouping layer. So graphically, I have: (keep in mind that I have multiple markers which are CALayers also, this is ascii art after all) pdf page (CATiledLayer) ---------------------- | CALayer | | +---------+ | | | +----+ | | | | |mker| | | | | +----+ | | | +---------+ | | | ---------------------- I have set up the canonical drawLayer:inContext: in my view for drawing the pdf. When I zoom to have more detail, the pdf gets rendered correctly, but the markers get scaled. No matter what I do to the bounds of the CALayer, my markers always become bigger and appear jagged. I would like to have the markers always the same size, as when they were initialized and first shown when the view was drawn. Is this possible ? or am I using a wrong approach ? Should I do special drawing for my contained CALayer in the drawLAyer:inContext: message ? As you see, there are things that I am missing to resolve my problem. Thank you for any help you provide.Read the article
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StringTemplate Variable with Object Properties
- by David Higgins
I am starting to use StringTemplate for the first time, and am stuck trying to figure out how to get StringTemplate to do something like the following: article.st $elemenets:article/elements()$ article/elements.st $if($it.is_type)$ $it:article/type()$ $elseif($it.is_type2)$ $it:article/type2()$ // also tried: $it.value:article/type2()$, same result $endif$ article/type.st <type>$it.value$</type> article/type2.st <h1>$it.value.title</h1> <type2>$it.value.text</type2> program.cs StringTemplateGroup group = new StringTemplateGroup("article", "Templates"); StringTemplate template = group.GetInstanceOf("Article"); template.SetAttribute("elements", new Element() { is_type = true, value = "<p>Hello Text</p>" }); template.SetAttribute("elements", new Element() { is_type2 = true, value = new { title = "Type 2 Title", text = "Type2 Text" } }); return template.ToString(); Problem here is ... the if(it.is_type) works fine, and the article/type.st works perfectly. However, when I pass an object to the value property for 'Element' I get this error: Class ClassName has no such attribute: text in template context [Article article/element elseif(it.is_type2)_subtemplate article/type2] So - my question is, how do i access the properties/fields of an object, within an object using StringTemplate?Read the article
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How do I change apache2 DocumentRoot (default snow leopard install) and not get "You don't have perm
- by David Peek
I'm trying to point DocumentRoot at a directory in my user folder. While I can happily point DocumentRoot at /Library/WebServer/Documents and ~/Sites I keep getting "You don't have permission to access / on this server." when I point it anywhere else. OK, I just found a solution mid-question (stack overflow is just that good) by changing the user/group apache runs under to myuser/admin. I'm sure there must be a better way though. Surely some kind of permissions magic on the directory I'm pointing at?Read the article
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Find and replace in a block of text.
- by David Tildon
I have a database full of text fields that look like this: (paragraph of normal text) image:blog/clownboy.jpg (another paragraph) I'm trying to write a view helper for Rails that will take one of these big blocks of text, find bits like "image:blog/clownboy.jpg" and replace them with the corresponding <img src="blog/clownboy.jpg"> (without disturbing the surrounding whitespace) before outputting it to the user. I've been trying for an hour or so now, but I'm new to Ruby and the regular expressions are still a bit beyond me.Read the article
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What's wrong with this conditional?
- by David
I am trying to make a method that tests to see if 3 lengths can make a triangle. I think i'm making some kind of syntax error but i can't figure out what it is. Here is the relevant bit of code: (its in java) public static void trya (int a, int b, int c) { if (c>(a+b)) { System.out.println ("yes") ; } else { if (b>(a+c)) { System.out.println ("yes") ; } } else { if (a>(b+c)) { System.out.println ("yes") ; } } else { System.out.println ("no") ; } } this is the error message i get: tryangle.java:17: 'else' without 'if' else ^Read the article
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Problem loading XMLDocument with non standard tags
- by David Conde
Hi, I have a code needed to load an XML document from a reader, something like this: private static XmlDocument GetDocumentStream(string xmlAddress) { var settings = new XmlReaderSettings(); settings.DtdProcessing = DtdProcessing.Ignore; settings.ValidationFlags = XmlSchemaValidationFlags.None; var reader = XmlReader.Create(xmlAddress, settings); document.Load(reader); return document; } But in my XML document, I have nodes like this one: <link rel="edit-media" title="Package" href="Packages(Id='51Degrees.mobi',Version='0.1.11.9')/$value" /> Is to my understanding that the node should be like <link rel="edit-media" title="Package"></link> But, I don't create the Xml document and I certainly don't want to change it, but when I try to load the XML document, the document.Load line throws an exception. To be more specific, the XML file is the RSS source for the nuPack project. Any ideas would be very appreaciated on how to be able to read this document properly.Read the article
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Looking for a good book on microprocessor internals
- by David Holm
I'm looking for a good book on how modern microprocessors are designed and work as I would like to increase my understanding of what makes them tick. Something that covers pipelines, superscalar architectures, caches etc. A book that is suitable for a programmer with several years of experience and has done and understands assembly programming and machine language, so basically not "CPUs for Dummies" or anything such. What books do people who design today's processors read for instance?Read the article
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NULL value when using NSDateFormatter
- by David A Gibson
Hello, I am using the following code to try and display in a time in a table cell. TimeSlot *timeSlot = [timeSlots objectAtIndex:indexPath.row]; NSDateFormatter *timeFormat = [[NSDateFormatter alloc] init]; [timeFormat setDateFormat:@"%1m/%1d/%Y"]; NSLog(@"Time: %@", timeSlot.time); NSDate *mydate = timeSlot.time; NSLog(@"Time: %@", mydate); NSString *theTime = [timeFormat stringFromDate:mydate]; NSLog(@"Time: %@", theTime); The log output is this: 2010-04-14 10:23:54.626 MyApp[1080:207] Time: 2010-04-14T10:23:54 2010-04-14 10:23:54.627 MyApp[1080:207] Time: 2010-04-14T10:23:54 2010-04-14 10:23:54.627 MyApp[1080:207] Time: (null) I am new to developing for the iPhone and as it all compiles with no errors or warnings I am at a loss as to why I am getting NULL in the log. Is there anything wrong with this code? ThanksRead the article
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iPhone: How to read contents from UIWebView XML Document?
- by David Conlisk
Hi all. In my iPhone app I'm using a UIWebView to allow the user to browse to an XML document on a website. When the user has found the xml document they want, they click a button below the UIWebView. Then I try to read the contents of the XML document from the UIWebView using: NSString *xml = [webView stringByEvaluatingJavaScriptFromString:@"document.getElementByTagName('rootXmlNodeName')[0].innerHTML"]; This doesn't work for me for XML documents. It works fine in a HTML page, e.g. using "html" for the rootXmlNodeName in the code snippet above. Any ideas? Thanks in advance!Read the article
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Creating A Single Generic Handler For Agatha?
- by David
I'm using the Agatha request/response library (and StructureMap, as utilized by Agatha 1.0.5.0) for a service layer that I'm prototyping, and one thing I've noticed is the large number of handlers that need to be created. It generally makes sense that any request/response type pair would need their own handler. However, as this scales to a large enterprise environment that's going to be A LOT of handlers. What I've started doing is dividing up the enterprise domain into logical processor classes (dozens of processors instead of many hundreds or possibly eventually thousands handlers). The convention is that each request/response type (all of which inherit from a domain base request/response pair, which inherit from Agatha's) gets exactly one function in a processor somewhere. The generic handler (which inherits from Agatha's RequestHandler) then uses reflection in the Handle method to find the method for the given TREQUEST/TRESPONSE and invoke it. If it can't find one or if it finds more than one, it returns a TRESPONSE containing an error message (messages are standardized in the domain's base response class). The goal here is to allow developers across the enterprise to just concern themselves with writing their request/response types and processor functions in the domain and not have to spend additional overhead creating handler classes which would all do exactly the same thing (pass control to a processor function). However, it seems that I still need to have defined a handler class (albeit empty, since the base handler takes care of everything) for each request/response type pair. Otherwise, the following exception is thrown when dispatching a request to the service: StructureMap Exception Code: 202 No Default Instance defined for PluginFamily Agatha.ServiceLayer.IRequestHandler`1[[TSFG.Domain.DTO.Actions.HelloWorldRequest, TSFG.Domain.DTO, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], Agatha.ServiceLayer, Version=1.0.5.0, Culture=neutral, PublicKeyToken=6f21cf452a4ffa13 Is there a way that I'm not seeing to tell StructureMap and/or Agatha to always use the base handler class for all request/response type pairs? Or maybe to use Reflection.Emit to generate empty handlers in memory at application start just to satisfy the requirement? I'm not 100% familiar with these libraries and am learning as I go along, but so far my attempts at both those possible approaches have been unsuccessful. Can anybody offer some advice on solving this, or perhaps offer another approach entirely?Read the article
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Powershell: align right for a column value from Select-Object in Format-Table format
- by David.Chu.ca
I have the following array value $outData with several columns. I am not sure how I align some columns right? $outData | Select-Object ` Name ` @{Name="Freespace(byte)"; Expression={"{0:N0}" -f $_.FreeSpace}}, ' .... # other colums ` | Format-Table -AutoSize It works fine. However, when I tried to use align for the freespace column to right: @{Name="Freespace(byte)"; Expression={"{0:N0}" -f $_.FreeSpace}; align="right"}, ' I got error message "Specified method is not supported". Not sure if there is any way to align the value to right?Read the article
