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• C# XDocument Attribute Performance Concerns

  - by Dested

  I have a loaded XDocument that I need to grab all the attributes that equal a certain value and is of a certain element efficiently. My current IEnumerable<XElement> vm; if (!cacher2.TryGetValue(name,out vm)) { vm = project.Descendants(XName.Get(name)); cacher2.Add(name, vm); } XElement[] abdl = (vm.Where(a => a.Attribute(attribute).Value == ab)).ToArray(); cacher2 is a Dictionary<string,IEnumerable<XElement>> The ToArray is so I can evaluate the expression now. I dont think this causes any real speed concerns. The problem is the Where itself. I am searching through anywhere from 1 to 10k items. Any help?

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• urlencode an array of values

  - by Ikke

  I'm trying to urlencode an dictionary in python with urllib.urlencode. The problem is, I have to encode an array. The result needs to be: criterias%5B%5D=member&criterias%5B%5D=issue #unquoted: criterias[]=member&criterias[]=issue But the result I get is: criterias=%5B%27member%27%2C+%27issue%27%5D #unquoted: criterias=['member',+'issue'] I have tried several things, but I can't seem to get the right result. import urllib criterias = ['member', 'issue'] params = { 'criterias[]': criterias, } print urllib.urlencode(params) If I use cgi.parse_qs to decode a correct query string, I get this as result: {'criterias[]': ['member', 'issue']} But if I encode that result, I get a wrong result back. Is there a way to produce the expected result?

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• Do I need to replace localhost in the IIS://localhost/MimeMap when reading the Mimemap

  - by Rob

  I'm reading out the mime types from IIS's MimeMap using the command _mimeTypes = new Dictionary<string, string>(); //load from iis store. DirectoryEntry Path = new DirectoryEntry("IIS://localhost/MimeMap"); PropertyValueCollection PropValues = Path.Properties["MimeMap"]; IISOle.MimeMap MimeTypeObj; foreach (var item in PropValues) { // IISOle -> Add reference to Active DS IIS Namespace provider MimeTypeObj = (IISOle.MimeMap)item; _mimeTypes.Add(MimeTypeObj.Extension, MimeTypeObj.MimeType); } Do I need replace the localhost part when I deploy it to my live server? If not, why not and what are the implications of not doing so. Cheers

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• Updating fields of values in a ConcurrentDictionary

  - by rboarman

  I am trying to update entries in a ConcurrentDictionary something like this: class Class1 { public int Counter { get; set; } } class Test { private ConcurrentDictionary<int, Class1> dict = new ConcurrentDictionary<int, Class1>(); public void TestIt() { foreach (var foo in dict) { foo.Value.Counter = foo.Value.Counter + 1; // Simplified example } } } Essentially I need to iterate over the dictionary and update a field on each Value. I understand from the documentation that I need to avoid using the Value property. Instead I think I need to use TryUpdate except that I don’t want to replace my whole object. Instead, I want to update a field on the object. After reading this blog entry on the PFX team blog: Perhaps I need to use AddOrUpdate and simply do nothing in the add delegate. Does anyone have any insight as to how to do this?

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• DataContractSerializer KnownType attribute not being respected?

  - by e28Makaveli

  I have a class that is decorated with a KnownType attribute with a type of the class. Is this not allowed? [KnownType(typeof(Occ600UIConfig))] public class Occ600UIConfig { } If so, why is the DCS throwing the following exception? {"Error in line 1 position 387. Element 'http://schemas.microsoft.com/2003/10/Serialization/Arrays:Value' contains data of the 'http://schemas.datacontract.org/2004/07/OCC600.Infrastructure.Dictionary.BusinessEntities:Occ600UIConfig' data contract. The deserializer has no knowledge of any type that maps to this contract. Add the type corresponding to 'Occ600UIConfig' to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding it to the list of known types passed to DataContractSerializer."}

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• OTP or S/KEY - Conversion of Hex string into 6 readable words

  - by Garbit

  As seen in RFC2289 (S/KEY), there is a list of words that must be used when converting the hexadecimal string into a readable format. How would i go about doing so? The RFC mentions: The one-time password is therefore converted to, and accepted as, a sequence of six short (1 to 4 letter) English words. Each word is chosen from a dictionary of 2048 words; at 11 bits per word, all one-time passwords may be encoded. Read more: http://www.faqs.org/rfcs/rfc1760.html#ixzz0fu7QvXfe Does this mean converting a hex into decimal and then using that as an index for an array of words. The other thing it could be is using a text encoding e.g. 1111 might equal dog in UTF-8 encoding thanks in advance for your help!

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• Get text under mouse cursor in mac osx leopard/snow leopard

  - by Liuyi Sun

  Hi there, is there any idea for getting the text under the mouse cursor? I'm trying to build a dictionary app, that pops up a panel of translates when mouse hangs over a word. I took a look at the accessiblity apis, and it only can find the current ui element, but not the current word... my last choice will be makeing screenshots frequently, and doing ocr... that'll be cpu consuming, I don't like that.. any idea for this? thanks in advance!

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• protobuf-net - backticks, Dictionaries & .proto files

  - by JosephH

  I'm trying to talk to a C# program that uses protobuf-net from an iphone using http://code.google.com/p/metasyntactic/wiki/ProtocolBuffers Unfortunately the .proto file I've been given (generated from the C# source code) includes an a line that protoc is rejecting: repeated Pair_Guid_List`1 Local = 6; It appears that this is because the source data is a C# Dictionary, with a Guid key and a class as the value. Is there a way to cope with this better? The protobuf-net version in use is r278.zip. (The C# sending and receiving these protobufs all works fine, it's just when we add the iphone into the mix that this becomes an issue.)

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• Why won't my UISearchDisplayController fire the didSelectRowAtIndexPath moethod?

  - by John Wells

  I am having an odd problem when searching a UITableView using a UISearchDisplayController. The UITableViewController is a subclass of another UITableViewController with a working didSelectRowAtIndexPath method. Without searching the controller handles selections fine, sending the superclass a didSelectRowAtIndexPath call, but if I select a cell when searching the superclass receives nothing but the cell is highlighted. Below is the code from my subclass. @implementation AdvancedViewController @synthesize searchDisplayController, dict, filteredList; - (void)viewDidLoad { [super viewDidLoad]; // Programmatically set up search bar UISearchBar *mySearchBar = [[UISearchBar alloc] init]; mySearchBar.delegate = self; [mySearchBar setAutocapitalizationType:UITextAutocapitalizationTypeNone]; [mySearchBar sizeToFit]; self.tableView.tableHeaderView = mySearchBar; // Programmatically set up search display controller searchDisplayController = [[UISearchDisplayController alloc] initWithSearchBar:mySearchBar contentsController:self]; [self setSearchDisplayController:searchDisplayController]; [searchDisplayController setDelegate:self]; [searchDisplayController setSearchResultsDataSource:self]; // Parse data from server NSData * jsonData = [NSData dataWithContentsOfURL:[NSURL URLWithString:url]]; NSArray * items = [[NSArray alloc] initWithArray:[[CJSONDeserializer deserializer] deserializeAsArray:jsonData error:nil]]; // Init variables dict = [[NSMutableDictionary alloc] init]; listIndex = [[NSMutableArray alloc] init]; fullList = [[NSMutableArray alloc] init]; filteredList = [[NSMutableArray alloc] init]; // Get each item and format it for the UI for(NSMutableArray * item in items) { // Get the first letter NSString * firstKey = [[[item objectAtIndex:0] substringWithRange:NSMakeRange(0,1)] uppercaseString]; // Put symbols and numbers in the same section if ([[firstKey stringByTrimmingCharactersInSet:[[NSCharacterSet letterCharacterSet] invertedSet]] isEqualToString:@""]) firstKey = @"#"; // If there isn't a section with this key if (![listIndex containsObject:firstKey]) { // Add the key to the index for faster access (because it's already sorted) [listIndex addObject:firstKey]; // Add the key to the unordered dictionary [dict setObject:[NSMutableArray array] forKey:firstKey]; } // Add the object to the dictionary [[dict objectForKey:firstKey] addObject:[[NSMutableDictionary alloc] initWithObjects:item forKeys:[NSArray arrayWithObjects:@"name", @"url", nil]]]; // Add the object to the list for simple searching [fullList addObject:[[NSMutableDictionary alloc] initWithObjects:item forKeys:[NSArray arrayWithObjects:@"name", @"url", nil]]]; } filteredList = [NSMutableArray arrayWithCapacity:[fullList count]]; } #pragma mark - #pragma mark Table view data source // Custom method for object oriented data access - (NSString *)tableView:(UITableView *)tableView dataForRowAtIndexPath:(NSIndexPath *)indexPath withKey:(NSString *)key { return (NSString *)((tableView == self.searchDisplayController.searchResultsTableView) ? [[filteredList objectAtIndex:indexPath.row] objectForKey:key] : [[[dict objectForKey:[listIndex objectAtIndex:indexPath.section]] objectAtIndex:indexPath.row] valueForKey:key]); } - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return (tableView == self.searchDisplayController.searchResultsTableView) ? 1 : (([listIndex count] > 0) ? [[dict allKeys] count] : 1); } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return (tableView == self.searchDisplayController.searchResultsTableView) ? [filteredList count] : [[dict objectForKey:[listIndex objectAtIndex:section]] count]; } - (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView { return (tableView == self.searchDisplayController.searchResultsTableView) ? [[NSArray alloc] initWithObjects:nil] : listIndex; } - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section { return (tableView == self.searchDisplayController.searchResultsTableView) ? @"" : [listIndex objectAtIndex:section]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *kCellID = @"cellID"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:kCellID]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:kCellID] autorelease]; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; } NSString * name = nil; // TODO: Make dataForRowAtIndexPath work here if (tableView == self.searchDisplayController.searchResultsTableView) { // NOTE: dataForRowAtIndexPath causes this to crash for some unknown reason. Maybe it is called before viewDidLoad and has no data? name = [[filteredList objectAtIndex:indexPath.row] objectForKey:@"name"]; } else { // This always works name = [self tableView:[self tableView] dataForRowAtIndexPath:indexPath withKey:@"name"]; } cell.textLabel.text = name; return cell; } #pragma mark Search Methods - (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope { // Clear the filtered array [self.filteredList removeAllObjects]; // Filter the array for (NSDictionary *item in fullList) { // Compare the item's name to the search text NSComparisonResult result = [[item objectForKey:@"name"] compare:searchText options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [searchText length])]; if (result == NSOrderedSame) { // Add to the filtered array if it matches [self.filteredList addObject:item]; } } } - (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString { [self filterContentForSearchText:searchString scope: [[self.searchDisplayController.searchBar scopeButtonTitles] objectAtIndex:[self.searchDisplayController.searchBar selectedScopeButtonIndex]]]; // Return YES to cause the search result table view to be reloaded. return YES; } - (void)viewDidUnload { filteredList = nil; } @end

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• How is the presentation layer of a CALayer generated?

  - by KJ

  Hi, I'm having difficulties animating my custom layer property using Core Anmiation. My question is how the presentation of a CALayer is generated. Here is what I have now: @interface MyLayer : CALayer { NSMutableDictionary* customProperties; } @property (nonatomic, copy) NSMutableDictionary* customProperties; @end And when I try to animate the key path "customProperties.roll" using CABasicAnimation and addAnimation:forKey:, it seems that the customProperties variable doesn't get copied from the model layer to the presentation layer, and the customProperties of the presentation layer appears to be nil, failing to update the value for the key "roll". Is there a way to animate values in a dictionary correctly? What is the exact relationship between a model layer and a presentation layer while being animated? Thanks!

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• Load Balancing using SQL Server and TempData MVC

  - by Jamie

  Hi all, I've been told that MVC 1.0 TempData does not work under a load balancer when using SQL Server and that it is because the Dictionary itself is not serializable. We require this for a project and are looking to be able load balancer effectively. So I would be very grateful if someone could answer the following questions: Is there away around this so you can make it work? Is this fixed in MVC 2.0? Can we create a ITempDataProvider to fix it? Or has anyone made a fix to the source code for a project of their own they would like to share? Cheers, Jamie

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• Why does TheyWorkForYou (TWFY) web API always returns '{}'

  - by Tartley

  I'm calling a web API exposed by TheyWorkForYou (TWFI). http://www.theyworkforyou.com/api/ I'm using the Python bindings provided by twfython: http://code.google.com/p/twfython/ I wrote some code to call this API a few months ago, at which time it worked fine. But now I dig it out to run it again, no matter what query I ask of the API, it always returns '{}' (an empty dictionary). For example the following code, which should return a list of all MPs: from twfy import TWFY API_KEY = 'XXXXXXXXXXXXXXXXXXXXXX' twfy = TWFY.TWFY(API_KEY) print twfy.api.getMPs(output='js') Am I being really dumb? What else should I check?

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• Issue passing NSMutableDictionary to a method

  - by roswell

  Hello all, I've got a chunk of code that's passing an NSMutableDictionary (amongst other things) to a method in another class: [self.shuttle makeAPICallAndReturnResultsUsingMode:@"login" module:@"login" query:credentials]; The NSMutableArray credentials is previously defined like this: NSMutableDictionary *credentials = [[NSMutableDictionary alloc] init]; [credentials setObject:username forKey:@"username"]; [credentials setObject:password forKey:@"password"]; The method that receives it looks like this: -(id)makeAPICallAndReturnResultsUsingMode:(NSString *)mode module:(NSString *)module query:(NSMutableDictionary *)query The code works fine up until this point within the above method: [query setObject:self.sessionID forKey:@"session_id"]; At this point, the application terminates -- the console informs me of this exception: * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[NSCFDictionary setObject:forKey:]: method sent to an uninitialized mutable dictionary object' This leads me to believe that I must initialize NSMutableDictionary in some way in my new method before I can access it, but I have no idea how. Any advice?

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• NHibernate Session Management Advice

  - by Hugusta

  I need some advice on NHibernate Session Management for a C# WinForms application. I am currently porting an application to use NHibernate. I am also employing a UnitOfWork pattern as described in the link below; http://nhforge.org/wikis/patternsandpractices/nhibernate-and-the-unit-of-work-pattern.aspx My question relates to Sessions. Can you only have one session running per thread at all times? I have a scenario in which a Session (UnitOfWork) may be open for a form shown by the application but the user opens another form (i.e. Tools - Options) which I would like to have its own UnitOfWork. Clearly in this instance it would make more sense to open another Session for the "Tools - Options" form and not use the currently open session for the underlying form. Can we have a Dictionary of Sessions on the one thread? Any advice on session management is appreciated.

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• Control JSON Serialization format of a custom type in .NET

  - by mrjoltcola

  I have a PhoneNumber class that stores a normalized string, and I've defined implicit operators for string <- Phone to simplify treatment of the PhoneNumber as a string. I've also overridden the ToString() method to always return the cleaned version of the number (no hyphens or parentheses or spaces). In any MVC.NET code where I explicitly display the number, I can explicitly call phone.Format(). The problem here is serializing an entity that has a PhoneNumber to JSON; JavaScriptSerializer serializes it as [object Object]. I want to serialize it as a string in (555)555-5555 format. I've looked at writing a custom JavaScriptConverter, but JavaScriptConverter.Serialize() method returns a dictionary of name-value pairs. I don't want PhoneNumber to be treated as an object with fields, I want to simply serialize it as a string.

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• Efficiency Question for an Ajax App

  - by Kubi

  Hi, Currently I am dealing with a web application which uses a txt file as a database for testing for now. But we will connect it to a server later on. My question is, if there is a more efficient way to get my objects than the way I am using now. During the page_init I am getting all my objects into a Collection as List, then I am populating the ajax toolkit accordion objects in the page with that. I have some client side buttons which fires callbacks for getting some other objects to populate the accordions in an update panel. And I am using .net Collections too much like dictionary and list, I am wondering if using arrays is more efficient. Could you advise me about how to make this site better and faster ? Is it better or possible to initialize those TravelP objects in javascript at the beginning and use it like that ? Any comments would be greatly appreciated, Thanks

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• how to serialize a DataTable to json or xml

  - by loviji

  Hello, i'm trying to serialize DataTable to Json or XML. is it possibly and how? any tutorials and ideas, please. For example a have a sql table: CREATE TABLE [dbo].[dictTable]( [keyValue] [int] IDENTITY(1,1) NOT NULL, [valueValue] [int] NULL, CONSTRAINT [Psd2Id] PRIMARY KEY CLUSTERED ( [keyValue] ASC )WITH (PAD_INDEX = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY] ) ON [PRIMARY] C# code: string connectionString = "server=localhost;database=dbd;uid=**;pwd=**"; SqlConnection mySqlConnection = new SqlConnection(connectionString); string selectString = "SELECT keyValue, valueValue FROM dicTable"; SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText = selectString; SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter(); mySqlDataAdapter.SelectCommand = mySqlCommand; DataSet myDataSet = new DataSet(); mySqlConnection.Open(); string dataTableName = "dictionary"; mySqlDataAdapter.Fill(myDataSet, dataTableName); DataTable myDataTable = myDataSet.Tables[dataTableName]; //now how to serialize it?

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• ASP.Net MVC Keeping action parameters between postbacks

  - by Matt

  Say I have a page that display search results. I search for stackoverflow and it returns 5000 results, 10 per page. Now I find myself doing this when building links on that page: <%=Html.ActionLink("Page 1", "Search", new { query=ViewData["query"], page etc..%> <%=Html.ActionLink("Page 2", "Search", new { query=ViewData["query"], page etc..%> <%=Html.ActionLink("Page 3", "Search", new { query=ViewData["query"], page etc..%> <%=Html.ActionLink("Next", "Search", new { query=ViewData["query"], page etc..%> I dont like this, I have to build my links with careful consideration to what was posted previously etc.. What I'd like to do is <%=Html.BuildActionLinkUsingCurrentActionPostData ("Next", "Search", new { Page = 1}); where the anonymous dictionary overrides anything currently set by previous action. Essentially I care about what the previous action parameters were, because I want to reuse, it sounds simple, but start adding sort and loads of advance search options and it starts getting messy. Im probably missing something obvious

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• Adding rows to UItableview and passing data between Viewcontrollers

  - by Jonathan

  I have a list of websites in a plist, when the app loads this populates a tableview (which is inside a navigation controller) But I have added an add button to the navigation bar and then created another View Controller to deal with inputting of the new website (Like Title and URL). It is very similar to how the contacts app looks. There is a table view and when you tap add, the add UI slides up. I have got all this working great so far. My Problem is what happens when the user taps Done. I can add the website to the plist (each website is a dictionary in the plist with 2 keys, atm) But then how do I tell the tableView to update? The table view has not been removed from the main window, just the add view has been added on top of the "screen". Another way of asking is, when you tap Save on Add a Contact screen: (not my image) How does the new contact's data (Xyz's data) get shown on the tableview?

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• Silverlight: Why can't silverlight see my xaml file referenced in MergedDictionary?

  - by Sergio

  Hi there, I have a silverlight application with a number of styles defined in a seperate xaml file under the directory /Styles. My App.xaml looks like this: <Application.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="/Styles/Legend.xaml"/> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Application.Resources> Legend.xaml has its build action set to Content and 'Do Not Copy' as the copy to output directory setting. The message I'm getting in blend is: An error occurred while finding the resource dictionary "/Styles/Legend.xaml" Thanks in advance!

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• Databind a datagrid header combobox from ViewModel

  - by Mike

  I've got a Datagrid with a column defined as this: <Custom:DataGridTextColumn HeaderStyle="{StaticResource ComboBoxHeader}" Width="Auto" Header="Type" Binding="{Binding Path=Type}" IsReadOnly="True" /> The ComboBoxHeader style is defined in a resource dictionary as this: <Style x:Key="ComboBoxHeader" TargetType="{x:Type my:DataGridColumnHeader}"> <Setter Property="VerticalContentAlignment" Value="Center"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type my:DataGridColumnHeader}"> <ControlTemplate.Resources> <Storyboard x:Key="ShowFilterControl"> <ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="filterComboBox" Storyboard.TargetProperty="(UIElement.Visibility)"> <DiscreteObjectKeyFrame KeyTime="00:00:00" Value="{x:Static Visibility.Visible}"/> <DiscreteObjectKeyFrame KeyTime="00:00:00.5000000" Value="{x:Static Visibility.Visible}"/> </ObjectAnimationUsingKeyFrames> <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="filterComboBox" Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)"> <SplineColorKeyFrame KeyTime="00:00:00" Value="Transparent"/> <SplineColorKeyFrame KeyTime="00:00:00.5000000" Value="White"/> </ColorAnimationUsingKeyFrames> </Storyboard> <Storyboard x:Key="HideFilterControl"> <ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="filterComboBox" Storyboard.TargetProperty="(UIElement.Visibility)"> <DiscreteObjectKeyFrame KeyTime="00:00:00.4000000" Value="{x:Static Visibility.Collapsed}"/> </ObjectAnimationUsingKeyFrames> <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="filterComboBox" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)"> <SplineColorKeyFrame KeyTime="00:00:00" Value="Black"/> <SplineColorKeyFrame KeyTime="00:00:00.4000000" Value="#00000000"/> </ColorAnimationUsingKeyFrames> </Storyboard> </ControlTemplate.Resources> <my:DataGridHeaderBorder x:Name="dataGridHeaderBorder" Margin="0" VerticalAlignment="Top" Height="31" IsClickable="{TemplateBinding CanUserSort}" IsHovered="{TemplateBinding IsMouseOver}" IsPressed="{TemplateBinding IsPressed}" SeparatorBrush="{TemplateBinding SeparatorBrush}" SeparatorVisibility="{TemplateBinding SeparatorVisibility}" SortDirection="{TemplateBinding SortDirection}" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Padding="{TemplateBinding Padding}" Grid.ColumnSpan="1"> <Grid x:Name="grid" Width="Auto" Height="Auto" RenderTransformOrigin="0.5,0.5"> <Grid.RenderTransform> <TransformGroup> <ScaleTransform/> <SkewTransform/> <RotateTransform/> <TranslateTransform/> </TransformGroup> </Grid.RenderTransform> <Grid.ColumnDefinitions> <ColumnDefinition Width="*"/> </Grid.ColumnDefinitions> <ContentPresenter x:Name="contentPresenter" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" ContentStringFormat="{TemplateBinding ContentStringFormat}" ContentTemplate="{TemplateBinding ContentTemplate}"> <ContentPresenter.Content> <MultiBinding Converter="{StaticResource headerConverter}"> <MultiBinding.Bindings> <Binding ElementName="filterComboBox" Path="Text" /> <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="Content" /> </MultiBinding.Bindings> </MultiBinding> </ContentPresenter.Content> </ContentPresenter> <ComboBox ItemsSource="{Binding Path=Types}" x:Name="filterComboBox" VerticalAlignment="Center" HorizontalAlignment="Right" MinWidth="20" Height="Auto" OpacityMask="Black" Visibility="Collapsed" Text="" Grid.Column="0" Grid.ColumnSpan="1"/> </Grid> </my:DataGridHeaderBorder> <ControlTemplate.Triggers> <Trigger Property="IsMouseOver" Value="True"> <Trigger.EnterActions> <BeginStoryboard x:Name="ShowFilterControl_BeginStoryboard" Storyboard="{StaticResource ShowFilterControl}"/> <StopStoryboard BeginStoryboardName="HideFilterControl_BeginShowFilterControl"/> </Trigger.EnterActions> <Trigger.ExitActions> <BeginStoryboard x:Name="HideFilterControl_BeginShowFilterControl" Storyboard="{StaticResource HideFilterControl}"/> <StopStoryboard BeginStoryboardName="ShowFilterControl_BeginStoryboard"/> </Trigger.ExitActions> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> <Setter Property="Background"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF0067AD" Offset="1"/> <GradientStop Color="#FF003355" Offset="0.5"/> <GradientStop Color="#FF78A8C9" Offset="0"/> </LinearGradientBrush> </Setter.Value> </Setter> <Setter Property="Foreground" Value="White"/> <Setter Property="BorderBrush"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#D8000000" Offset="0.664"/> <GradientStop Color="#7F003355" Offset="1"/> </LinearGradientBrush> </Setter.Value> </Setter> <Setter Property="FontWeight" Value="Bold"/> <Setter Property="BorderThickness" Value="1,1,1,0"/> <Setter Property="HorizontalContentAlignment" Value="Center"/> <Setter Property="Padding" Value="5,0"/> </Style> As you can see, I'm trying to databind the combobox's ItemsSource to Types, but this doesn't work. The list is in my ViewModel that is being applied to my page, how would I specify in this style that is in my resource dictionary that I want to bind to a source in my viewmodel.

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• Why is UIApplicationWillChangeStatusBarFrameNotification not sent when the in-call status bar is sho

  - by Sbrocket

  I've been trying to listen for changes in the status bar height – such as when the in-call status bar is shown or hidden – by listening for the UIApplicationWillChangeStatusBarFrameNotification notification to be sent. Fairly straightforward code here... [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(statusBarWillChangeFrame:) name:UIApplicationWillChangeStatusBarFrameNotification object:nil]; But the notification never seems to be sent in that case, either on the Simulator by using the "Toggle In-Call Status Bar" option or on the device when a call ends with the application open. In addition, the similar UIApplicationDelegate method is not called. According to the documentation, UIApplicationWillChangeStatusBarFrameNotification Posted when the application is about to change the frame of the status bar. The userInfo dictionary contains an NSValue object that encapsulates a CGRect structure expressing the location and size of the new status bar frame. Use UIApplicationStatusBarFrameUserInfoKey to access this value. Can anyone explain why this notification is not being sent in response to the in-call status bar being shown or hidden? According to the documentation, it should be.

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• key value coding-compliant for NSObject class?

  - by 4thSpace

  I've created a singleton class that loads a plist. I keep getting this error when I try to set a value: '[ setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key test.' I have one key in the plist file. The key is named "test" and has no value associated with it. I set the value like this: [[PlistManager sharedManager].plist setValue:@"the title value" forKey:@"test"]; I look at the set plist dictionary and see this from within PlistManager: po self.plistDictionary { test = ""; } I get the error just as I'm leaving PlistManager in the debugger. PlistManager is of type NSObject. So no xibs. Any ideas on what I need to do?

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• Windows Workflow and sql script in declarative config like InRule

  - by Satish

  We have been using InRule for our Rule needs we have found that it does not scale well and so are investigating the Windows Work Flow. Within InRule we could configure pretty much have any task for example our sql scripts and stored procedures where all part of a separate rule config file, I am wondering if there is a similar functionality within windows work flow where I could just call a declarative task and pass it a bunch of parameters – This task should contain the sql script I would be executing , we should be able to change the script at runtime without recompilation to the WF code. Is this possible in Windows Work flow – How can I accomplish this within work flow. Additionally for sql execution within Work Flow, how does it get the connection string. Should it be passed from the calling program – is passing it as input parameter from the Calling app via the Dictionary object the best way or can the work flow code have visibility to my calling program app.config and get the connection string ?

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• Assignment in python for loop possible?

  - by flyingcrab

  I have a dictionary d (and a seperate sorted list of keys, keys). I wanted the loop to only process entries where the value is False - so i tried the following: for key in keys and not d[key]: #do foo I suppose my understanding of python sytax is not what i thought it was - because the assignment doesnt suppose to have happened above, and a i get an instanciation error. The below works of course, but I'd really like to be able to use something like the code above.. possible? for key in keys: if d[key]: continue #foo time! Thanks!

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