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  • Obj-msg-send error in numberOfSectionsInTableView

    - by mukeshpawar
    import "AddBillerCategoryViewController.h" import "Globals.h" import "AddBillerViewController.h" import "AddBillerListViewController.h" import"KlinnkAppDelegate.h" @implementation AddBillerCategoryViewController @synthesize REASON, RESPVAR, currentAttribute,tbldata,strOptions; // This recipe adds a title for each section //Initialize the table view controller with the grouped style (AddBillerCategoryViewController *) init { if (self = [super initWithStyle:UITableViewStyleGrouped]);// self.title = @"Crayon Colors"; return self; } -(void)showBack { [[self navigationController] pushViewController:[[AddBillerViewController alloc] init] animated:YES]; } (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated { if ([viewController isKindOfClass:[AddBillerCategoryViewController class]]) { AddBillerCategoryViewController *controller = (AddBillerCategoryViewController *)viewController; [controller.tbldata reloadData]; } } (void)viewDidLoad { appDelegate = (KlinnkAppDelegate *)[[UIApplication sharedApplication] delegate]; appDelegate.catListArray.count; // Uncomment the following line to display an Edit button in the navigation bar for this view controller. // self.navigationItem.rightBarButtonItem = self.editButtonItem; //self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] // initWithTitle:@"Back" // style:UIBarButtonItemStylePlain // target:self // action:@selector(showBack)] autorelease]; if(gotOK == 0) { //self.navigationItem.leftBarButtonItem.enabled = FALSE; dt = [[DateTime alloc] init]; strChannelID = @"IGLOO|MOBILE"; strDateTime = [dt findDateTime]; strTemp = [dt findSessionTime]; strSessionID = [appDelegate.KMobile stringByAppendingString:strTemp]; strResponseURL = @"http://115.113.110.139/Test/CbbpServerRequestHandler"; strResponseVar = @"serverResponseXML"; strRequestType = @"GETCATEGORY"; NSLog(@"Current Session id - %@", strSessionID); //conn = [[NSURLConnection alloc] init]; receivedData = [[NSMutableData data] retain]; //.................... currentAttribute = [[NSMutableString alloc] init]; // create XMl xmlData = [[NSData alloc] init]; xmlData = [self createXML]; // XMl has been created now convert it in to string xmlString = [[NSString alloc] initWithData:xmlData encoding:NSASCIIStringEncoding]; // Ataching other infromatin to he xml parameterString = [[NSString alloc] initWithString:@"mobileRequestXML="]; requestString = [[NSString alloc] init]; requestString = [parameterString stringByAppendingString:xmlString]; // give space betn two element. requestString = [requestString stringByReplacingOccurrencesOfString:@"<" withString:@" <"]; // Initalizing other parameters postData = [requestString dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; postLength = [NSString stringWithFormat:@"%d",[postData length]]; firstRequest = [[[NSMutableURLRequest alloc] init] autorelease]; REASON = [[NSMutableString alloc] init]; RESPVAR = [[NSMutableString alloc] init]; NSLog(@"\n \n Sending for 1st time........\n"); [self sendRequest]; NSLog(@"\n \n Sending for 2nd time........\n"); [self sendRequest]; NSLog(@"\n \n both request send........\n \n "); } //[tbldata reloadData]; [self retain]; [super viewDidLoad]; } -(void)sendRequest { finished = FALSE; NSLog(@"\n Sending Request \n\n %@", requestString); conn = [[NSURLConnection alloc] init]; if(gotOK == 0) [firstRequest setURL:[NSURL URLWithString:@"http://115.113.110.139/Test/CbbpMobileRequestHandler"]]; if(gotOK == 1) { [firstRequest setURL:[NSURL URLWithString:@"http://115.113.110.139//secure"]]; gotOK = 2; } [firstRequest setHTTPMethod:@"POST"]; [firstRequest setValue:postLength forHTTPHeaderField:@"Content-Length"]; [firstRequest setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; [firstRequest setHTTPBody:postData]; conn = [conn initWithRequest:firstRequest delegate:self startImmediately:YES]; [conn start]; while(!finished) { [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantFuture]]; } if (conn) { //receivedData = [[NSMutableData data] retain]; NSLog(@"\n\n Received %d bytes of data",[receivedData length]); } else { NSLog(@"\n Not responding"); } } (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { NSLog(@" \n Send didReciveResponse"); [receivedData setLength:0]; } (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { NSLog(@" \n Send didReciveData"); [receivedData appendData:data]; } (void)connectionDidFinishLoading:(NSURLConnection *)connection { finished = TRUE; NSLog(@" \n Send didFinishLaunching"); // do something with the data // receivedData is declared as a method instance elsewhere NSLog(@"\n\n Succeeded! DIDFINISH Received %d bytes of data\n\n ",[receivedData length]); NSString *aStr = [[NSString alloc] initWithData:receivedData encoding:NSASCIIStringEncoding]; NSLog(aStr); //[conn release]; if([aStr isEqualToString:@"OK"]) gotOK = 1; NSLog(@" Value of gotOK - %d", gotOK); if(gotOK == 2) { responseData = [aStr dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; parser = [[NSXMLParser alloc] initWithData:responseData]; [parser setDelegate:self]; NSLog(@"\n start parsing"); [parser parse]; NSLog(@"\n PArsing over"); NSLog(@"\n check U / S and the RESVAR is - %@",RESPVAR); NSRange textRange; textRange =[aStr rangeOfString:@"<"]; if(textRange.location != NSNotFound) { if([RESPVAR isEqualToString:@"U"]) { self.navigationItem.rightBarButtonItem.enabled = TRUE; self.navigationItem.leftBarButtonItem.enabled = TRUE; NSLog(@" \n U......."); UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:REASON delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK", nil]; [alert show]; [alert release]; } if([RESPVAR isEqualToString:@"S"]) { NSLog(@"\n S........"); [[self navigationController] pushViewController:[[AddBillerCategoryViewController alloc] init] animated:YES]; //[self viewDidLoad]; //[tbldata reloadData]; } } else { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Connection Problem" message:@"Enable to process your request at this time. Please try again." delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK", nil]; [alert show]; [alert release]; //self.navigationItem.leftBarButtonItem.enabled = TRUE; } } NSLog(@"\n Last line of connectionDidFinish "); //[tableView reloadData]; } -(NSData *)createXML { NSString *strXmlNode = @" channel alliaceid session reqtype responseurl responsevar "; NSString *tempchannel = [strXmlNode stringByReplacingOccurrencesOfString:@"channel" withString:strChannelID options:NSBackwardsSearch range:NSMakeRange(0, [strXmlNode length])]; NSString *tempalliance = [tempchannel stringByReplacingOccurrencesOfString:@"alliaceid" withString:@"WALLET365" options:NSBackwardsSearch range:NSMakeRange(0, [tempchannel length])]; NSString *tempsession = [tempalliance stringByReplacingOccurrencesOfString:@"session" withString:strSessionID options:NSBackwardsSearch range:NSMakeRange(0, [tempalliance length])]; NSString *tempreqtype = [tempsession stringByReplacingOccurrencesOfString:@"reqtype" withString:strRequestType options:NSBackwardsSearch range:NSMakeRange(0,[tempsession length])]; NSString *tempresponseurl = [tempreqtype stringByReplacingOccurrencesOfString:@"responseurl" withString:strResponseURL options:NSBackwardsSearch range:NSMakeRange(0, [tempreqtype length])]; NSString *tempresponsevar = [tempresponseurl stringByReplacingOccurrencesOfString:@"responsevar" withString:strResponseVar options:NSBackwardsSearch range:NSMakeRange(0,[tempresponseurl length])]; NSData *data= [[NSString stringWithString:tempresponsevar] dataUsingEncoding:NSUTF8StringEncoding]; return data; } (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict { if([elementName isEqualToString:@"RESPVAL"]) currentAttribute = [NSMutableString string]; if([elementName isEqualToString:@"REASON"]) currentAttribute = [NSMutableString string]; if([elementName isEqualToString:@"COUNT"]) currentAttribute = [NSMutableString string]; if([elementName isEqualToString:@"CATNAME"]) currentAttribute = [NSMutableString string]; } (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { if([elementName isEqualToString:@"RESPVAL"]) { [RESPVAR setString:currentAttribute]; //NSLog(@"\n Response VAR - %@", RESPVAR); } if([elementName isEqualToString:@"REASON"]) { [REASON setString:currentAttribute]; //NSLog(@"\n Reason - %@", REASON); } if([elementName isEqualToString:@"COUNT"]) { NSString *temp1 = [[NSString alloc] init]; temp1 = [temp1 stringByAppendingString:currentAttribute]; catCount = [temp1 intValue]; [temp1 release]; //NSLog(@"\n Cat Count - %d", catCount); } if([elementName isEqualToString:@"CATNAME"]) { [appDelegate.catListArray addObject:[NSString stringWithFormat:currentAttribute]]; //NSLog(@"%@", appDelegate.catListArray); } } (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { if(self.currentAttribute) [self.currentAttribute setString:string]; } /* (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; } */ /* (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; } */ /* (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; } */ /* (void)viewDidDisappear:(BOOL)animated { [super viewDidDisappear:animated]; } */ /* // Override to allow orientations other than the default portrait orientation. (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations return (interfaceOrientation == UIInterfaceOrientationPortrait); } */ (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview // Release anything that's not essential, such as cached data } pragma mark Table view methods -(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; } // Customize the number of rows in the table view. -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { KlinnkAppDelegate *appDelegated = (KlinnkAppDelegate *)[[UIApplication sharedApplication] delegate]; return appDelegated.catListArray.count; } // Customize the appearance of table view cells. (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease]; } // Set up the cell... AddBillerCategoryViewController *mbvc = (AddBillerCategoryViewController *)[appDelegate.catListArray objectAtIndex:indexPath.row]; [cell setText:mbvc.strOptions]; return cell; } (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // Navigation logic may go here. Create and push another view controller. // AnotherViewController *anotherViewController = [[AnotherViewController alloc] initWithNibName:@"AnotherView" bundle:nil]; // [self.navigationController pushViewController:anotherViewController]; // [anotherViewController release]; gotOK = 0; int j = indexPath.row; appDelegate.catName = [[NSString alloc] init]; appDelegate.catName = [appDelegate.catName stringByAppendingString:[appDelegate.catListArray objectAtIndex:j]]; [[self navigationController] pushViewController:[[AddBillerListViewController alloc] init] animated:YES]; } /* // Override to support conditional editing of the table view. (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath { // Return NO if you do not want the specified item to be editable. return YES; } */ /* // Override to support editing the table view. (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { if (editingStyle == UITableViewCellEditingStyleDelete) { // Delete the row from the data source [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:YES]; } else if (editingStyle == UITableViewCellEditingStyleInsert) { // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view } } */ /* // Override to support rearranging the table view. (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath { } */ /* // Override to support conditional rearranging of the table view. (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath { // Return NO if you do not want the item to be re-orderable. return YES; } */ (void)dealloc { [REASON release]; [RESPVAR release]; [currentAttribute release]; [tbldata release]; [super dealloc]; } @end In the Above code .. numberOfSectionsInTableView ,i get error of obj-msg-send i have intialize the array catlist and even not released it anywhere still why i am getting this error please help me i am badly stuck' thanks in advacnce

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  • How add a ItemsPanel dynamically to listbox.

    - by Subhen
    Hi, I have a list Box which contains few Images in the itemsTemplate , like below: <ListBox.ItemTemplate> <DataTemplate> <StackPanel x:Name="stackPanelItems" Orientation="Horizontal"> <Image Source="{Binding strAlbumcoverImage}" Height="40" Width="40"/> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> Now onClick of a button I want to change the view and for that I want to add the wrap panel to the ListBox ItemsPanelas following: <ListBox.ItemsPanel> <ItemsPanelTemplate> <controlsToolkit:WrapPanel></controlsToolkit:WrapPanel> </ItemsPanelTemplate> </ListBox.ItemsPanel> Do I need to define the ItemsPanel Style in App.XAML and then assign it. Not quite sure about it. Thanks, Subhen

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  • Best approch for creating Base control

    - by akjoshi
    Hi, I am looking for a solution for this scenario - I need to implement a feature to allow user to add various controls to canvas(WPF, custom and third party ) and then select any one of them and modify some properties in property grid(changes needs to be reflected in UI). I don't want to expose all the properties of any control only some of them(relevant to end user); apart from this there are some properties which will be common for all controls e.g. Title, Value(Value will be bound to some property of a control, say Text of TextBox and Content of Label) etc. I am thinking of putting all the common proeprties at one place. Things I am confused aout - How to create such base class, whether to use UserControl or Custom Control for this? How will the binding work between Control, base class proeprties and PropertyGrid? What type of object will I expose to property grid? Any idea on what approch should be followed in this case, any kind of input will really be helpful.

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  • Is it possible to create a generic Util Function to be used in Eval Page

    - by Nassign
    I am currently binding a Nullable bit column to a listview control. When you declare a list view item I need to handle the case when the null value is used instead of just true or false. <asp:Checkbox ID="Chk1" runat="server" Checked='<%# HandleNullableBool(Eval("IsUsed")) %>' /> Then in the page I add a HandleNullableBool() function inside the ASPX page. protected static bool HandleNullableBool(object value) { return (value == null) ? false : (bool)value; } This works fine but I need to use this in several pages so I tried creating a utility class with a static HandleNullableBool. But using it in the asp page does not work. Is there a way to do this in another class instead of the ASPX page? <asp:Checkbox ID="Chk1" runat="server" Checked='<%# Util.HandleNullableBool(Eval("IsUsed")) %>' />

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  • Why is this code invalid in C#?

    - by mmattax
    The following code will not compile: string foo = "bar"; Object o = foo == null ? DBNull.Value : foo; I get: Error 1 Type of conditional expression cannot be determined because there is no implicit conversion between 'System.DBNull' and 'string' To fix this, I must do something like this: string foo = "bar"; Object o = foo == null ? DBNull.Value : (Object)foo; This cast seems pointless as this is certainly legal: string foo = "bar"; Object o = foo == null ? "gork" : foo; It seems to me that when the ternary branches are of different types, the compiler will not autobox the values to the type object...but when they are of the same type then the autoboxing is automatic. In my mind the first statement should be legal... Can anyone describe why the compiler does not allow this and why the designers of C# chose to do this? I believe this is legal in Java...Though I have not verified this. Thanks. EDIT: I am asking for an understanding of why Java and C# handle this differently, what is going on underneath the scenes in C# that make this invalid. I know how to use ternary, and am not looking for a "better way" to code the examples. I understand the rules of ternary in C#, but I want to know WHY... EDIT (Jon Skeet): Removed "autoboxing" tag as no boxing is involved in this question.

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  • Grails checkbox

    - by Tomáš
    Hi gurus I have trouble with binding Boolean property in association classes. Property is set to true if I check checkbox (good), but is null if checbox is not checked. I know the problem with HTML checkbox. I know why is send "_fieldName" in params, but this "_fieldName" dont set my boolean property to false. class Person{ String title List<Group> groups = new ArrayList() static hasMany = [groups: Groups] } class Group{ String title Boolean isHidden static belongTo = Person } class PersonController{ def form = { def person = new Person() person.groups.add( new Group() ) return ["person": person] } def handleForm = { def person = new Person( params ) println person.groups[0] } } If I check checkbox: [isHidden:on, title:a, _isHidden:] println person.groups[0] //true If I don check checkbox: [title:a, _isHidden:] println person.groups[0] //null Thank a lot for help Tom I am sorry, I searched this web, but did not get actual info for my trouble.

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  • How to set a RichTextBox in Silverlight 4 to fit it's parent height and maintain it on resize?

    - by Ivan Zlatanov
    I am having hard times figuring this out. Here is what I need: <StackPanel x:Name="container" VerticalAlignment="Stretch"> <RichTextBox Height="???" /> </StackPanel> Basically what I know I can do is to bind RichTextBox Height to it's parent's height ( Height="{Binding ElementName=container, Path=ActualHeight}". Unfortunately this only works on load, because as it seems ActualHeight and ActualWidth don't notify for changes. So what is the best way in Silverlight 4 to tell RichTextBox or TextBlock, it doesn't matter, to fill it's parent height, and maintain scrollbar if it's content height is bigger. Is the only way to bind some Resize events and maintain the height explicitly? That seems really ugly to me?

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  • When to use UserControl vs. Control in Silverlight?

    - by Dov
    I'm just getting my feet wet in Silverlight, and don't really understand the differences and pros/cons of creating a UserControl vs. creating a Control for the same task (as in when you right click on a selection in Expression Blend, for instance). It seems like selecting "Make Into Control" just creates a new template for the base type you specify, whereas creating a UserControl creates a whole new base class. Is that correct? In this particular instance, I'm creating a custom text box control that only takes numbers, and divides itself into 3 sections, storing 3 values into separate properties as pictured below. In this particular case, which would be best? Update (Additional Question): Why can't I use Template Binding with a UserControl, but I can with a Control? That's one reason I thought that making a UserControl might not be the right decision.

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  • Use any CSS compiler (Sass, Less) to generate the selector

    - by xckpd7
    So I've recently been playing around with CSS compilers, but I have no idea how (or if it's possible) to dynamically generate pieces of a selector. For instance, let's say I wanted to make mixins to get display: inline-block; to work cross browser. I would have to do the styles, yeah, but I would have to do the IE6/7 selector hacks to get them to work in those browsers too. Ideally I'm looking for a one off thing to add to an element and have the ability for that to work. Some kind person recently gave me this solution: http://stackoverflow.com/questions/2746754/css-compilers-and-converting-ie-hacks-to-conditional-css/2747036#2747036 and it would be nice to implement that in a minimal way that would allow me to specify it for a given element and be on my way (for instance in Less, you can create a class with styles, pass that class to another element, and that element will inherit all of those styles. It would be nice to pass an element .inline-block; and it create the styles needed to support IE6/7 without having to resort to stuff like _color: pink; Any ideas? EDIT: for instance as well, how could I do something like clearfix for LESS? (lesscss.org)? If Sass can only do it then that will work too.

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  • DTO or Domain Model Object in the View Layer?

    - by smayers81
    I know this is probably an age-old question, but what is the better practice? Using a domain model object throughout all layers of your application, and even binding values directly to them on the JSP (I'm using JSF). Or convert a domain model object into a DTO in the DAO or Service layer and send a lightweight DTO to the presentation layer. I have been told it makes no sense to use DTOs because changes to the database will result in changes to all your DTOs whereas using Model Objects everywhere will just require changes to the affected model object. However, the ease of use and the lightweight nature of DTOs seems to outweigh that. I should note that my app uses Hibernate Model Objects AND uses its own custom-created model objects (meaning not bound to any DB session, always detached). Is either of the above scenarios more beneficial to a strict Model Object pattern? Using Hibernate has been a huge PITA with regards to things like Lazy Initialization Exceptions.

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  • Navigate to the Same Page After Action in JSF 2

    - by shipmaster
    I have a component done in JSF 1.x, this component has a command button as follows <h:commandButton ... action="#{templateController.next}" /> Where templateController was passed as an EL binding and can be any object that implements a certain interface. The generic implementation of next() was just executing code and then returning an empty string causing the same page to refresh: public String next() { ..... return ""; } Now I am trying to port that component to JSF 2, my problem is that an empty string doesn't cause the same page to refresh anymore, instead, the framework tries to redirect to a page called ".jsf" i.e it just appends .jsf to whatever the outcome is. My question is how to return an outcome that causes the current page to refresh. My component is generic and I don't know before hand the name of the page it is going to be used on. Thanks

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  • GWT 2.X No resource found for key

    - by Han Fastolfe
    I've developed a GWT app using i18n internationalization. In Host/Dev mode it works fine, but launching GWT compile gives this error: No resource found for key xxx, like below. Compiling module ...rte.RTE Scanning for additional dependencies: file:/home/.../client/i18n/RTEValidationMessages.java Computing all possible rebind results for '...client.i18n.RTEMessages' Rebinding ...client.i18n.RTEMessages Invoking com.google.gwt.dev.javac.StandardGeneratorContext@e7dfd0 Processing interface ...client.i18n.RTEMessages Generating method body for txtIndirizzo3() [ERROR] No resource found for key 'txtIndirizzo3' Messages are loaded with late binding. public class RTEValidationMessages { private RTEMessages additionalMessages; public RTEValidationMessages() { additionalMessages = GWT.create(RTEMessages.class); } } Deleting the method which gives the error, results in another random method with error, say not the method before or after in the interface ...client.i18n.RTEMessages. Help is greatly appreciated.

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  • Implementing arrays using a stack

    - by Zack
    My programming language has no arrays, no lists, no pointers, no eval and no variable variables. All it has: Ordinary variables like you know them from most programming languages: They all have an exact name and a value. One stack. Functions provided are: push (add element to top), pop (remove element from top, get value) and empty (check if stack is empty) My language is turing-complete. (Basic arithmetics, conditional jumps, etc implemented) That means, it must be possible to implement some sort of list or array, right? But I have no idea how... What I want to achieve: Create a function which can retrieve and/or change an element x of the stack. I could easily add this function in the implementation of my language, in the interpreter, but I want to do it in my programming language. "Solution" one (Accessing an element x, counting from the stack top) Create a loop. Pop off the element from the stack top x times. The last element popped of is element number x. I end up with a destroyed stack. Solution two: Do the same as above, but store all popped off values in a second stack. Then you could move all elements back after you are done. But you know what? I don't have a second stack!

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  • WPF dependency property setter not firing when PropertyChanged is fired, but source value is not cha

    - by Sandor Davidhazi
    I have an int dependency property on my custom Textbox, which holds a backing value. It is bound to an int? property on the DataContext. If I raise the PropertyChanged event in my DataContext, and the source property's value is not changed (stays null), then the dependency property's setter is not fired. This is a problem, because I want to update the custom Textbox (clear the text) on PropertyChanged, even if the source property stays the same. However, I didn't find any binding option that does what I want (there is an UpdateSourceTrigger property, but I want to update the target here, not the source). Maybe there is a better way to inform the Textbox that it needs to clear its text, I'm open to any suggestions.

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  • What are the differences among sqlite3 from python2.5, pysqlite and apsw

    - by leo
    Hi, I would like to know the differences among sqlite3 from python2.5, pysqlite and apsw? I have a bumpy run when trying to install pysqlite on windows vista with python2.5, see following: download sqlite from http://sqlite.org/download.html and unzip them into windows/system32 folder and put sqlite3.dll into c:/python25/Lib folder download pysqlite windows installer when trying to run following in python shell: >>> from pysqlite2 import test Traceback (most recent call last): File "<stdin>", line 1, in <module> File "pysqlite2\test\__init__.py", line 35, in <module> from pysqlite2.test import dbapi, types, userfunctions, factory, transactions,\ File "pysqlite2\test\dbapi.py", line 27, in <module> import pysqlite2.dbapi2 as sqlite File "pysqlite2\dbapi2.py", line 27, in <module> from pysqlite2._sqlite import * ImportError: No module named _sqlite I am wondering anybody with experiences of the above three types of sqlite binding to python can comment their pros and cons such as performances I am wondering is it worthwhile to try the pysqlite or apsw thanks

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  • 3D Triangle - WPF

    - by user300423
    I am trying to apply an image brush to a Triangle in WPF without success. What am i doing wrong? This is my attempt: Dim ModelTri As New MeshGeometry3D ModelTri.Positions.Add(New Point3D(0, 0, 0)) ModelTri.Positions.Add(New Point3D(100, 0, 0)) ModelTri.Positions.Add(New Point3D(100, 100, 0)) Dim MeshTri As New MeshGeometry3D MeshTri.TriangleIndices.Add(0) MeshTri.TriangleIndices.Add(1) MeshTri.TriangleIndices.Add(2) 'Texture Dim TexturePoints As New PointCollection TexturePoints.Add(New Point(100, 0)) TexturePoints.Add(New Point(0, 100)) TexturePoints.Add(New Point(100, 100)) MeshTri.TextureCoordinates = TexturePoints 'Image Brush Dim imgBrush As New ImageBrush() imgBrush.ImageSource = New BitmapImage(New Uri("Mercury.jpg", UriKind.Relative)) imgBrush.Stretch = Stretch.Fill imgBrush.TileMode = TileMode.Tile imgBrush.SetValue(NameProperty, "imgBrush") Dim Mat As Material Dim DMaterial As New DiffuseMaterial DMaterial.Brush = imgBrush Dim Bind As New Binding("imgBrush") Bind.Source = imgBrush BindingOperations.SetBinding(DMaterial, BindingGroupProperty, Bind) 'This doesnt work Mat = DMaterial 'This works 'Mat = New DiffuseMaterial(New SolidColorBrush(Colors.Khaki)) Dim triangleModel As GeometryModel3D = New GeometryModel3D(ModelTri, Mat) Dim model As New ModelVisual3D() model.Content = triangleModel Viewport.Children.Add(model)

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  • How can I access the ListViewItems of a WPF ListView?

    - by David Schmitt
    Within an event, I'd like to put the focus on a specific TextBox within the ListViewItem's template. The XAML looks like this: <ListView x:Name="myList" ItemsSource="{Binding SomeList}"> <ListView.View> <GridView> <GridViewColumn> <GridViewColumn.CellTemplate> <DataTemplate> <!-- Focus this! --> <TextBox x:Name="myBox"/> I've tried the following in the code behind: (myList.FindName("myBox") as TextBox).Focus(); but I seem to have misunderstood the FindName() docs, because it returns null. Also the ListView.Items doesn't help, because that (of course) contains my bound business objects and no ListViewItems. Neither does myList.ItemContainerGenerator.ContainerFromItem(item), which also returns null.

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  • Some instruction needed for PHP OOPS concepts.

    - by Avinash
    Hi, I need to clear some OOPS concepts in PHP. 1) Which is faster $this-method(); or self:method(); 2) I know the concept of static keyword but can you please post the actual Use of it. Since it can not be accessed by the instance, but is there ant benefit for that? 3) what is factory? How can i use it? 4) What is singleton? How can i use that? 5) What is late static binding? http://www.php.net/manual/en/oop5.intro.php I have gone through below link but I am not getting clear with it. Thanks Avinash

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  • testing SpringMVC controllers

    - by Don
    Hi, I'm unit-testing my SpringMVC (v. 2.5) controllers using code like the following: public void testParamValidation() { MyController controller = new MyController(); MockHttpServletRequest request = new MockHttpServletRequest(); request.addParameter("foo", "bar"); request.addParameter("bar", baz"); ModelAndView mav = controller .handleRequest(request, new MockHttpServletResponse()); // Do some assertions on mav } This controller is a subclass of AbstractCommandController, so the parameters are bound to a command bean, and any binding or validation errors are stored in an object that implements the Errors interface. I can't seem to find any way to access this Errors from within the test, is this possible? Thanks, Don

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  • Databinding int32 to MaskedEditExtender enabled TextBox

    - by Zach Skinner
    I have a master/detail scheme for editing an asp:GridView using an asp:DetailsView. One of my fields is for a phone number of type int64 (always 10 digits). I would like this field to always be displayed as (###)###-####. My issue is the first digit in the phone number is always truncated for my edit item field which I used a MaskedEditExtender to achieve the formatting. Here is my EditItemTemplate for the details view: <cc1:MaskedEditExtender TargetControlID="edtPROJ_Leader_Phone" Mask="(999)999-9999" runat="server" ClearMaskOnLostFocus="false" ClipboardEnabled="true" MaskType="Number" /> <asp:TextBox ID="edtPROJ_Leader_Phone" runat="server" Text='<%# Bind("PROJ_Leader_Phone") %>' ></asp:TextBox> When my details view is displayed for editing, the text box displays(_23)456-7890 for the integer 1234567890. Also worth noting that if the property MaskType="Number" is removed, the textbox shows: (234)567-890_. I would of course have the textbox show (123)-546-67890 after binding.

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  • capture MouseEnter / MouseLeave on Image in WPF TreeViewItem

    - by pileggi
    Hi! I've done my TreeView all with XAML but now I'd like to manage an event with code-behind and I don't know how. The HierarchicalDataTemplate contains an Image. I need to capture the events MouseEnter / MouseLeave on the Image. I've tried in this way: <Image x:Name="imgArticolo" Source="{Binding imgArt}"> <Image.Style TargetType="{x:Type Image}"> <Style> <EventSetter Event="MouseEnter" Handler="iArt_MouseEnter"/> </Style> </Image.Style> </Image> But it doesn't work: error: "MouseEnter member not recognized or not accessible" (from italian) Can you, please, help me? Thank you! Pileggi

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  • UpdatePanel not refreshing in Accordion

    - by TenaciousImpy
    Hi, I'm using MS AJAX's accordion control. It works fine normally, but I can't seem to get it to work with an UpdatePanel. My layout is like this: <div id="accordion"> <div><a href="#">Header1</a></div> <div class="acc_content"> <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional" > <ContentTemplate> <asp:button id="btnToggle" runat="server" text="toggle"/> //my repeater contents go here. The buttons within the repeater cause a postback, but changes cannot be seen unless the page is manually refreshed (since the updatepanel doesn't refresh) </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="btnToggle" EventName="click" /> <asp:AsyncPostBackTrigger ControlID="btnAdd" EventName="click" /> //this button is outside the updatepanel </ContentTemplate> </Triggers> </asp:UpdatePanel> </div> <div><a href="#">Header 2 </a></div> <div class="acc_content"> Content of the second pane </div> </div> There are postbacks occurring when I click the buttons, but the updatepanel never refreshes or updated. I tried adding UpdatePanel1.Update() in the code-behind for each postback event, but no luck. Any ideas as to why this is happening? Thanks

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  • Enable/disable RequiredValidator on client-side / CustomValidator not firing

    - by Simeon
    I've got a drop-down where the user selects a Country. It is a required "field". Next to it, there is a textfield named State. If the user selects US, then the field State is required. If the user selects e.g. Sweden, the State is not required, since Sweden has no states. Example code: <asp:DropDownList runat="server" ID="Country"></asp:DropDownList> <asp:RequiredFieldValidator ControlToValidate="Country" runat="server" Display="Static" ErrorMessage="Required field" /> <asp:TextBox runat="server" ID="State"></asp:TextBox> <asp:CustomValidator ClientValidationFunction="DoesntGetFiredIfStateIsEmpty" runat="server" Display="Static" ErrorMessage="Required field" /> <!-- SO, RATHER THIS TOGETHER WITH CONDITIONAL FIRING --> <asp:RequiredFieldValidator ControlToValidate="State" runat="server" Display="Static" ErrorMessage="Required field" /> My question to you is: How can I make this CustomValidator fire validation when it is empty? Or put simplier: How can I make a RequiredValidator fire conditionally? Or simplest: How can I enable/disable a RequiredValidator on client-side?

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  • WCF is throwing UnauthorizedAccessExceptyion after upgrade to .NET 4.0

    - by Andrey
    I have a pretty simple client-server ASP.NET app; communication is via WCF service. All worked perferctly inVS 2008, now I upgraded to VS2010 and every time the client code is trying to instantiate a channel to the server: new ChannelFactory<IMemberService>("Members.MemberService").CreateChannel(); it throws an UnauthorizedAccessException "Access denied". Were there any breaking changes in the new version, or do I need to add some configuration? I'm pretty stuck, any ideas would be highly appreciated! BTW, binding used is basicHttpBinding, i don't know if thats important here. Thank you, Andrey

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  • Insert date to database

    - by simon
    I'm trying to insert the current date to the database and i allways get the massage(when i pres the button on the form to save to my access database), that the data type is incorect in the conditional expression. the code: string conString = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=C:\Users\Simon\Desktop\save.mdb"; OleDbConnection empConnection = new OleDbConnection(conString); string insertStatement = "INSERT INTO obroki_save " + "([ID_uporabnika],[datum],[ID_zivila],[skupaj_kalorij]) " + "VALUES (@ID_uporabnika,@datum,@ID_zivila,@skupaj_kalorij)"; OleDbCommand insertCommand = new OleDbCommand(insertStatement, empConnection); insertCommand.Parameters.Add("@ID_uporabnika", OleDbType.Char).Value = users.iDTextBox.Text; insertCommand.Parameters.Add("@datum", OleDbType.Char).Value = DateTime.Now; insertCommand.Parameters.Add("@ID_zivila", OleDbType.Char).Value = iDTextBox.Text; insertCommand.Parameters.Add("@skupaj_kalorij", OleDbType.Char).Value = textBox1.Text; empConnection.Open(); try { int count = insertCommand.ExecuteNonQuery(); } catch (OleDbException ex) { MessageBox.Show(ex.Message); } finally { empConnection.Close(); textBox1.Clear(); textBox2.Clear(); textBox3.Clear(); textBox4.Clear(); textBox5.Clear(); } i tried to change the oleDbType.char to oleDbType.Dbdate and others but it doesnt work. I can save other stuff with that code but im stuck here when i wan't to save the date. Please help !

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