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  • WPF MVVM: TextBox and default Button binding does update too late

    - by Sam
    I've got a simple WPF dialog with these two controls: <TextBox Text="{Binding MyText}"/> <Button Command="{Binding MyCommand}" IsDefault="True"/> Now, when I enter some text in the TextBox and click the button using the mouse, everything works like expected: the TextBox will set MyText and MyCommand is called. But when I enter some text and hit enter to "click" the default button, it does not work. Since on hitting enter the focus does not leave the TextBox, the binding will not be refresh MyText. So when MyCommand is called (which works), MyText will contain old data. How do I fix this in MVVM? In classic code-behind I probably just would call "MyButton.Focus()" in the MyCommand handler, but in MVVM the MyCommand handler does know nothing about the button. So what now`?

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  • Biztalk Ordered Delivery direct bound to multiple ports

    - by WtFudgE
    Hi, another ordered delivery problem. We have an orchestration which is bound to a send port which has ordered delivery true. Another send port also picks up these messages through filtering, this port also has ordered delivery. Now for some reason when there are multiple ports using the message and one of these is directly port binded only one of the ports is being used. I mean that not both ports give an output. If i unenlist one of the ports it's always outputted, this works in both ways. We used to have this with 2 ports which both used filters instead, this worked but we had to change one to a direct port, the problem occured since then. Also the choice of ports for BizTalk is pretty random, because on our server it for example chooses port A and when I recreate the same problem on my local machine it for example choses port B. It's kind of a weird problem and we have no idea what could be the cause.

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  • Force validation on bound controls in WPF

    - by Valentin Vasilyev
    Hello. I have a WPF dialog with a couple of textboxes on it. Textboxes are bound to my business object and have WPF validation rules attached. The problem is that user can perfectly click 'OK' button and close the dialog, without actually entering the data into textboxes. Validation rules never fire, since user didn't even attempt entering the information into textboxes. Is it possible to force validation checks and determine if some validation rules are broken? I would be able to do it when user tries to close the dialog and prohibit him from doing it if any validation rules are broken. Thank you.

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  • Multi-column sorting with an NSTableView bound to an NSArrayController

    - by Cinder6
    Hi there. I have an NSTableView that's bound to an NSArrayController. Everything gets loaded into the table correctly, and I have sort keys and selectors set for the various columns (this also works). What I'm trying to do is sort multiple columns when the user clicks one column header, but I can't find any way to do this. I could brute-force a way by overriding tableView:mouseDownInHeaderOfTableColumn:, but that seems an inelegant way of doing it. Is there a good way of doing multi-column sorting in an NSTableView using bindings?

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  • Why can event handlers can only be bound to HttpApplication events during IHttpModule initialization

    - by Venemo
    This is just another "working in dev server, why not working in IIS" type question. So, I created a nice DAL using NHibernate as described here. When creating an ISession, I hook up an event handler to the HttpApplication.EndRequest to take care of cleaning it up. However, I deployed my site to IIS and it says: Event handlers can only be bound to HttpApplication events during IHttpModule initialization. Since when? What for? Why? How can I bypass it?

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  • Inherited properties aren't bound during databinding

    - by Josh
    I have two interfaces, IAuditable and ITransaction. public interface IAuditable{ DateTime CreatedOn { get; } string CreatedBy { get; } } public interface ITransaction : IAuditable { double Amount{ get; } } And a class that implements ITransaction, call Transaction. public class Transaction : ITransaction{ public DateTime CreatedOn { get { return DateTime.Now; } } public string CreatedBy { get { return "aspnet"; } } public doubl Amount { get { return 0; } } } When I bind a list of ITransactions to a datagrid and use auto create columns, only the Amount gets bound. The CreatedBy and CreatedOn are not seen. Is there a way I can get these values visible during databinding?

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  • Late resolution of MSI variable for part of install folder path

    - by Don Vince
    In a setup project, on User Interface, I've created a RadioButtons (3 Buttons) dialog box. I've placed it before the Installation Folder Dialog. I wish to incorporate the value selected in the RadioButtons dialog as part of the Installation Folder. To do this I've placed the name of the variable amongst the path where I wish to use it in the DefaultLocation: [ProgramFilesFolder][Manufacturer]\[ProductName]\[BUTTON3] The effect of this is that the default value for the variable, BUTTON3 in the example above, is resolved as part of the folder, not the selected value. Anybody know how to make this variable use delayed expansion in some way to get the selected value?

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  • Dynamically assigning properties on a non data bound ASP.NET control

    - by thinknow
    For example, let's say I have a HyperLink: <asp:HyperLink runat="server" Text="Foo" NavigateUrl="foo.aspx" /> How can I set the NavigateUrl on the server side, without having to go the code-behind? This doesn't work of course: <asp:HyperLink runat="server" Text="Foo" NavigateUrl="<%= urlString %>" /> (where urlString might be a string I created earlier in the page) And this doesn't work because the HyperLink is not within a data bound control: <asp:HyperLink runat="server" Text="Foo" NavigateUrl='<%# urlString %>' /> I guess I could just use a standard anchor element: <a href="<%= urlString %>">Foo</a> But I'd rather not mix up HTML and ASP.NET controls, and it would be handy to be able to do this for other controls. Surely there must be a way?

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  • DataGridView bound to a Dictionary and updated with a thread

    - by Manjoor
    I have a Dictionary binded to DataGridView by using following sample code. http://stackoverflow.com/questions/854953/datagridview-bound-to-a-dictionary Please see the above question first The diffrence is that i am updating dictionary from a thread. (Event handler of another class). My Event handler is as below static void f_PriceChanged(Objet f, eventData e) { if (prices.ContainsKey(e.ItemText)) prices[e.ItemText] = e.price; else prices.Add(e.ItemText, e.price); } Not to mention the prices is declared as class level. I have modified the button code from original post as Button btn = new Button(); btn.Dock = DockStyle.Bottom; btn.Click += delegate { bl.Reset(); }; form.Controls.Add(btn); Internally the Dictionary is updated as expected but grid does not update. Clicking on button generate exception Collection was modified; enumeration operation may not execute What to do?

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  • Date javascript object from IE cannot be automatically bound to Datetime in ASP.NET MVC

    - by Sergio
    Hi There, I have a site that uses a jquery calendar to display events. I have noticed than when using the system from within IE (all versions) ASP.NET MVC will fail to bind the datetime to the action that send back the correct events. The sequence of events goes as follows. Calendar posts to server to get events Server ActionMethod accepts start and end date, automatically bound to datetime objects In every browser other than IE the start and end date come through as: Mon, 10 Jan 2011 00:00:00 GMT When IE posts the date, it comes through as Mon, 10 Jan 2011 00:00:00 UTC ASP.NET MVC 2 will then fail to automatically bind this to the action method parameter. Is there a reason why this is happening? The code that posts to the server is as follows: data: function (start, end, callback) { $.post('/tracker/GetTrackerEvents', { start: start.toUTCString(), end: end.toUTCString() }, function (result) { callback(result); }); },

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  • Displaying UserControls based on the type a TreeView selection is bound to

    - by Ray Wenderlich
    I am making an app in WPF in a style similar to Windows Explorer, with a TreeView on the left and a pane on the right. I want the contents of the right pane to change depending on the type of the selected element in the TreeView. For example, say the top level in the Tree View contains objects of class "A", and if you expand the "A" object you'll see a list of "B" objects as children of the "A" object. If the "A" object is selected, I want the right pane to show a user control for "A", and if "B" is selected I want the right pane to show a user control for "B". I've currently got this working by: setting up the TreeView with one HierarchialDataTemplate per type adding all the UserControls to the right pane, but collapsed implementing SelectedItemChanged on the TreeView, and setting the appropriate usercontrol to visible and the others to collapsed. However, I'm sure there's a better/more elegant way to switch out the views based on the type the selection is bound to, perhaps by making more use of data binding... any ideas?

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  • Zend Framework Error:Invalid parameter number: no parameters were bound'

    - by roast_soul
    I'm using the Zend Frameworker 1.12. According to the help file, I used the Zend_Db_Statement to execute my sql. Below is my php code: $sql = "delete from options where id=?"; $stmt = new Zend_Db_Statement_Mysqli($this->getAdapter(), $sql); return $stmt->execute(array('1')); But the error is exception 'PDOException' with message 'SQLSTATE[HY093]: Invalid parameter number: no parameters were bound' in D:\Zend\workspaces\DefaultWorkspace.metadata.plugins\org.zend.php.framework.resource\resources\ZendFramework-1\library\Zend\Db\Statement\Mysqli.php:209 Stack trace: ......... ......... I googled for days, but nothing works. Any one know how to fix it?

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  • WPF - Listbox bound to collection acts as one item

    - by user553765
    Hi, I have a listbox with the ItemsControl binding the ItemsSource to a readonly collection of strings. The ItemTemplate then declares the DataTemplate as a checkbox where its content is that of the name of the particular item in the collection and IsChecked bound to a property to determine whether or not the item is selected (it's just a listbox of checkboxes) This works fine with one exception - MouseOver the ListBox and it acts as if the collection of Strings is a single item; the whole box acts as if selected. This wouldn't be as much of a problem were it not for this also affecting the scrollbars where they won't get enabled - presumably because it considers the one item as being visible on the screen even though it in actual facts is x+ with only x-y showing on the screen. How do I get the listbox to act as if each individual string is its own item. I assume it acts this way because I declared a datatemplate in order to get a listbox of checkboxes?? Any help would be much appreciated!

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  • Assembly Version Conflicts with What is Already Bound

    - by davemackey
    I'm running Microsoft LightSwitch Beta 1 and have been creating an application which has been going great, but then I tried debugging after making a few minor changes and received the following error: "Could not load file or assembly 'SW_Resources.Commom, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The requested assembly version conflicts with what is already bound in the app domain or specified in the manifest. (Exception from HRESULT: 0x80131053)" I've tried emptying my cache in Firefox and IE but that doesn't seem to make any difference. I did discover if I right-clicked on the Solution and changed the version from 0.1 to 1.0 then it works fine. I had changed it to 0.1 b/c I wanted to reflect that it wasn't a release version...any thoughts on how to get around this issue the right way?

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  • Bound a treeview control to user-defined complex type using EF 4

    - by GIbboK
    Hi, I use Asp.net, SQL 2008 and EF 4. I need display hierarchy data in a treeview control, Data is stored in a DB that use HierarchyId. Unfortunately, EF4 doesn't support HierarchyId. So in this case, I thought to have a stored procedure that deals with my hierarchy and return a result set back to EF that EF4 can turn into a collection of user-defined complex type that can then be bound directly to the treeview control. I imported a SPROC in EF 4 using Import Function and now I have a Complex DataType called: CategoryHierarchy_Result An image of my Model: Here some data from the Complex Type (in a GridView for example GridView1.DataSource = context.CategoryHierarchy(1);): My questions is: How to display my data from my Complex Type in a TreeView Control, showing a Tree structure that respect CategoryNodeString? I am a beginner an I never use TreeView before, any help or resource would be appreciated! Thanks!. Here some useful resource: http://www.robbagby.com/entity-framework/entity-framework-modeling-action-stored-procedures/

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  • cellForRowAtIndexPath called too late

    - by Mihai Fonoage
    Hi, I am trying to re-load a table every time some data I get from the web is available. This is what I have: SearchDataViewController: - (void)parseDatatXML { parsingDelegate = [[XMLParsingDelegate alloc] init]; parsingDelegate.searchDataController = self; // CONTAINS THE TABLE THAT NEEDS RE-LOADING; ImplementedSearchViewController *searchController = [[ImplementedSearchViewController alloc] initWithNibName:@"ImplementedSearchView" bundle:nil]; ProjectAppDelegate *delegate = [[UIApplication sharedApplication] delegate]; UINavigationController *nav = (UINavigationController *)[delegate.splitViewController.viewControllers objectAtIndex: 0]; NSArray *viewControllers = [[NSArray alloc] initWithObjects:nav, searchController, nil]; self.splitViewController.viewControllers = viewControllers; [viewControllers release]; // PASS A REFERENCE TO THE PARSING DELEGATE SO THAT IT CAN CALL reloadData on the table parsingDelegate.searchViewController = searchController; [searchController release]; // Build the url request used to fetch data ... NSURLRequest *dataURLRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:dataURL]]; parsingDelegate.feedConnection = [[[NSURLConnection alloc] initWithRequest:dataURLRequest delegate:parsingDelegate] autorelease]; } ImplementedSearchViewController: - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { NSLog(@"count = %d", [keys count]); // keys IS A NSMutableArray return [self.keys count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { ... cell.textLabel.text = [keys objectAtIndex:row]; ... } XMLParsingDelgate: -(void) updateSearchTable:(NSArray *)array { ... [self.currentParseBatch addObject:(NSString *)[array objectAtIndex:1]]; // RELOAD TABLE [self.searchViewController.table reloadData]; } - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict { if ([elementName isEqualToString:@"..."]) { self.currentParseBatch = [NSMutableArray array]; searchViewController.keys = self.currentParseBatch; ... } ... } - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { if ([elementName isEqualToString:@"..."]) { ... [self performSelectorOnMainThread:@selector(updateSearchTable:) withObject:array waitUntilDone:NO]; } ... } My problem is that when I debug, the calls go between reloadData and numberOfRowsInSection until the keys array is filled with the last data, time at which the cellForRowAtIndexPath gets called. I wanted the table to be updated for each element I send, one by one, instead of just in the end. Any ideas why this behavior? Thank you!

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  • Is Java worth learning in my late fourties?

    - by bobi
    Hi guys. First I want to say is that I am 37 years old and not from programer background (actualy from biology). And my question is should I start learning java? I have coded in php and javascript for a year and a half. Every answer would be appreciated Thanks in advance Bobi.

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  • WPF StaticResource bound to subproperty

    - by mizipzor
    I have a class thats created as a resource: <Window.Resources> <Model:MyModel x:Key="model" /> </Window.Resources> The MyModel class has a cli property named Foo. I want the selected value in a combobox to be bound to this property. I thought I could do this but Im getting errors: <ComboBox SelectedItem="{Binding Source={StaticResource model.Foo}}" /> Heres the error: Cannot find resource named '{model.Foo}'. Where did I go wrong? What extra parameters do I need to specify to properly bind to a subproperty?

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  • How can an Android Service know that its not bound to any Activities

    - by tunneling
    I have an Android Service that I would like to keep running even after the last Activity has been popped off the stack, or the User has chosen to do something else. Essentially the Service is listening for changes on a remote server, and I would like to generate a Notification if and only if an Activity from the app isn't running(or visible). In other words, I don't want the Notifications to occur while the User is directly interacting with the app. In the case where the User is directly interacting with the app, the Service will notify the Activity and update appropriate UI elements based on the changes. I plan to implement this through the Observer pattern. How can the Service know if none of apps Activities are bound to it? Thanks, J

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  • Visual Studio 2010 deploys views too late in deploy process

    - by Markus
    I have a database project in my VS2010 solution. I recently changed a view and and changed a number of functions to use this view instead of going directly against a table. But now when I deploy I get errors on most of these functions because the column asked for does not exists in the view yet. The update of the view happends later than the update of UDF's. Is there any way to change this behaviour? Wouldn't the best thing be if the deploy script updated in this order: tables, views, SP and UDF. It seems like tables is updated first, but the views are just thrown in somewhere in the middle of the deploy script.

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  • Why Hadoop is tightly bound to linux?

    - by user1676346
    I am new with Hadoop. What are the specific reasons why Hadoop is so tightly bound with Linux, and the cluster it runs upon is homogeneous? I'm looking for really specific details that can tell me why Hadoop does not work well with windows, and if there are some libraries some specific scripts that are involved? My project is to deploy Hadoop without using Cygwin. I have already seen the article from Hayes Davis where he explained how to install Hadoop without Cygwin, but he said that there are some bugs. I might start from scratch to properly configure Hadoop on Windows, but if any one can explain what, specifically, are the reasons that Hadoop doesn't work well on windows that would be very helpful.

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  • Making sure an 'int' is bound on sqlite

    - by iphone_developer
    I have a method called like this... -(void)dbUpdate:(int)forId { Which contains this sqlite to bind and update a database. sqlite3_bind_int(UPDATE_ACCOUNT, 3, forId); When I run the query, it doesn't give me an error, but it doesn't update the database either. If I change this line of code... sqlite3_bind_int(UPDATE_ACCOUNT, 3, forId); manually, to... sqlite3_bind_int(UPDATE_ACCOUNT, 3, 6); the query runs 100% fine, as expected. Changing the variable to an actual integer proves to me that the variable 'forId' isn't being passed or bound to the query properly. What am I doing wrong? How is the best way to pass an Integer (and make sure it is an Integer) into an sqlite bind? Cheers,

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  • Include upper bound in range()

    - by Jull
    How can I include the upper bound in range() function? I can't add by 1 because my for-loop looks like: for x in range(1,math.floor(math.sqrt(x))): y = math.sqrt(n - x * x) But as I understand it will actually be 1 < x < M where I need 1 < x <= M Adding 1 will completely change the result. I am trying to rewrite my old program from C# to Python. That's how it looked in C#: for (int x = 1; x <= Math.Floor(Math.Sqrt(n)); x++) double y = Math.Sqrt(n - x * x);

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  • Access to bound data in IMultiValueConverter.ConvertBack() in C#/WPF

    - by absence
    I have a problem with a multibinding: <Canvas> <local:SPoint x:Name="sp" Width="10" Height="10"> <Canvas.Left><!-- irrelevant binding here --></Canvas.Left> <Canvas.Top> <MultiBinding Converter="{StaticResource myConverter}" Mode="TwoWay"> <Binding ElementName="cp1" Path="(Canvas.Top)"/> <Binding ElementName="cp1" Path="Height"/> <Binding ElementName="cp2" Path="(Canvas.Top)"/> <Binding ElementName="cp2" Path="Height"/> <Binding ElementName="sp" Path="Height"/> <Binding ElementName="sp" Path="Slope" Mode="TwoWay"/> </MultiBinding> </Canvas.Top> </local:SPoint> <local:CPoint x:Name="cp1" Width="10" Height="10" Canvas.Left="20" Canvas.Top="150"/> <local:CPoint x:Name="cp2" Width="10" Height="10" Canvas.Left="100" Canvas.Top="20"/> </Canvas> In order to calculate the Canvas.Top value, myConverter needs all the bound values. This works great in Convert(). Going the other way, myConverter should ideally calculate the Slope value (Binding.DoNothing for the rest), but it needs the other values in addition to the Canvas.Top one passed to ConvertBack(). What is the right way to solve this? I have tried making the binding OneWay and create an additional multibinding for local:SPoint.Slope, but that causes infinite recursion and stack overflow. I was thinking the ConverterParameter could be used, but it seems like it's not possible to bind to it.

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