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  • How to dispatch a new property value in an object to the same property of two other objects

    - by WPFadvocate
    In WPF, I've three objects exposing the same DependencyProperty (let's say it's an integer). I want all three property values to remain synchronized, i.e. that whenever the int value changes in an object, this value is propagated to the two other objects. I think of multibinding to do the job, but I don't know how to detect which object changed, thus which value should be used and propagated to the other objects. Edited: here is my tentative code for multibinding, with the false hope that it would work without additional code: // create the multibinding MultiBinding mb = new MultiBinding() { Mode = BindingMode.TwoWay, UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged }; // create individual bindings to associate object_2 and object_3 to object_1 Binding b2 = new Binding() { Source = object_2, Path = new PropertyPath("X") }; Binding b3 = new Binding() { Source = object_3, Path = new PropertyPath("X") }; // add individual bindings to multibinding mb.Bindings.Add(b2); mb.Bindings.Add(b3); // bind object_2 and _3 to object_1 BindingOperations.SetBinding(object_1, TypeObject_1.XProperty, mb); But actually, there is a runtime error, saying the binding set by the last instruction is lacking a converter. But again I don't know how to write this converter (there is nothing to convert (as this is the case in the related MS sample of code linking 3 rgb properties to a color property), only to forward the value of the property changed to the two other properties). I understand I could solve the problem by creating an X_Changed event in the 3 types and then have each object registering to the two other objects event. I don't like this "manual" way and would prefer to bind the 3 properties together.

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  • Conflict When Two Storyboards Sets the Opacity Property?

    - by kennethkryger
    Hi, Background: I have a WPF UserControl (MainControl - not shown in code below) that contains another one (called MyControl in the code below). MainControl has it's DataContext set to an object, that has a Project-property. When MainControl loads, the Project-property is always null. The problem: When MainControl loads, I want to fade in the MyControl using a special storyboard (only used this one time (this "specialFadeInStoryboard" changes Opacity-property of MyControl from 0 to 1). When the Project-property is set to a value other than null, I want the MyControl to fade out using the "fadeOutStoryboard" (changes Opacity-property of MyControl to 0) and if it's set to null afterwards I want to fade it in again this time using the "fadeInStoryboard" (changes Opacity-property of MyControl to 1). However, after adding the code for the "specialFadeInStoryboard", the MyControl is never faded out... What am I doing wrong? <local:MyControl Visibility="{Binding RelativeSource={RelativeSource Self}, Path=Opacity, Converter={StaticResource opacityToVisibilityConverter}, Mode=OneWay}"> <local:MyControl.Style> <Style> <Style.Triggers> <EventTrigger RoutedEvent="FrameworkElement.Loaded"> <BeginStoryboard Storyboard="{StaticResource specialFadeInStoryboard}"/> </EventTrigger> <DataTrigger Binding="{Binding Project, Converter={StaticResource nullToBooleanConverter}, Mode=OneWay}" Value="True"> <DataTrigger.EnterActions> <BeginStoryboard Storyboard="{StaticResource fadeOutStoryboard}"/> </DataTrigger.EnterActions> <DataTrigger.ExitActions> <BeginStoryboard Storyboard="{StaticResource fadeInStoryboard}"/> </DataTrigger.ExitActions> </DataTrigger> </Style.Triggers> </Style> </local:MyControl.Style> </local:MyControl>

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  • Problem with Binding Multiple Objects on WPF

    - by Diego Modolo Ribeiro
    Hi, I'm developing a user control called SearchBox, that will act as a replacer for ComboBox for multiple records, as the performance in ComboBox is low for this scenario, but I'm having a big binding problem. I have a base control with a DependencyProperty called SelectedItem, and my SearchControl shows that control so that the user can select the record. The SearchControl also has a DependencyProperty called SelectedItem on it, and it is being updated when the user selects something on the base control, but the UI, wich has the SearchControl, is not being updated. I used a null converter so that I could see if the property was updating, but it's not. Below is some of the code: This is the UI: <NectarControles:MaskedSearchControl x:Name="teste" Grid.Row="0" Grid.Column="1" Height="21" ItemsSource="{Binding C001_Lista}" DisplayMember="C001_Codigo" Custom:CustomizadorTextBox.CodigoCampo="C001_Codigo" ViewType="{x:Type C001:C001_Search}" ViewModelType="{x:Type C001_ViewModel:C001_ViewModel}" SelectedItem="{Binding Path=Instancia.C001_Holding, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged, Converter={StaticResource DebuggingConverter}}"> </NectarControles:MaskedSearchControl> This is the relevante part of the SearchControl: Binding selectedItemBinding = new Binding("SelectedItem"); selectedItemBinding.Source = this.SearchControlBase; selectedItemBinding.Mode = BindingMode.TwoWay; selectedItemBinding.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged; this.SetBinding(SelectedItemProperty, selectedItemBinding); ... public System.Data.Objects.DataClasses.IEntityWithKey SelectedItem { get { return (System.Data.Objects.DataClasses.IEntityWithKey)GetValue(SelectedItemProperty); } set { SetValue(SelectedItemProperty, value); if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs("SelectedItem")); } } Please someone help me... Tks...

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  • MS Access Interop - How to set print filename?

    - by Ryan
    Hi all, I'm using Delphi 2009 and the MS Access Interop COM API. I'm trying to figure out two things, but one is more important than the other right now. I need to know how to set the file name when sending the print job to the spooler. Right now it's defaulting to the Access DB's name, which can be something different than the file's name. I need to just ensure that when this is printed it enters the print spool using the same filename as the actual file itself - not the DB's name. My printer spool is actually a virtual print driver that converts documents to an image. That's my main issue. The second issue is how to specify which printer to use. This is less important at the moment because I'm just using the default printer for now. It would be nice if I could specify the printer to use, though. Does anyone know either of these two issues? Thank you in advance. I'll go ahead and paste my code: unit Converter.Handlers.Office.Access; interface uses sysutils, variants, Converter.Printer, Office_TLB, Access_TLB, UDC_TLB; procedure ToTiff(p_Printer: PrinterDriver; p_InputFile, p_OutputFile: String); implementation procedure ToTiff(p_Printer: PrinterDriver; p_InputFile, p_OutputFile: String); var AccessApp : AccessApplication; begin AccessApp := CoAccessApplication.Create; AccessApp.Visible := False; try AccessApp.OpenCurrentDatabase(p_InputFile, True, ''); AccessApp.RunCommand(acCmdQuickPrint); AccessApp.CloseCurrentDatabase; finally AccessApp.Quit(acQuitSaveNone); end; end; end.

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  • AdornedElement Properties in a Trigger

    - by Chris Nicol
    I have an Adorner in XAML that I'm using for ErrorValidation. Basically I have a grid that I want to display on two conditions (if the "AdornedElement" IsFocused or IsMouseOver). Below is a code snippet where I'm binding - successfully - to the IsFocused of the AdornedElement, but as you can tell that only solves 1/2 the conditions. Now I can't pass another binding into the converter, nor can I create a property that handles both (needs to be XAML only solution). <AdornedElementPlaceholder x:Name="errorAdorner" /> ... <Grid x:Name="ErrorDetails" Visibility="{Binding ElementName=errorAdorner, Path=AdornedElement.IsFocused, Converter={StaticResource BooleanToVisibilityConverter}}" /> ... What I want to do is use triggers to handle this, the only problem is I can't access the AdornedElement's properties on a trigger. Something like this ... <Trigger SourceName="errorAdorner" Property="AdornedElement.IsFocused" Value="True"> <Setter TargetName="ErrorDetails" Property="Visibility" Value="Visible" /> </Trigger> This would also help as part of what I want to do is trigger animations, rather than just setting the visibility. Any help would be great.

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  • The uncatchable exception

    - by chaiguy
    Another custom MarkupExtension binding question... This time, my converter is being called before DataContext is set on the target element. This isn't a big deal because it will get updated when DataContext eventually receives a value. What is causing problems is the NullReferenceException I'm getting because of DataContext being null. Even though I'm attempting to catch the exception in my value converter: try { return ( (MethodInfo)_member ).Invoke( parameter, null ); } catch { return Binding.DoNothing; } For some reason the debugger is still halting at this point. Now I'm thinking it could be because the exception is happening in another assembly from where it is being caught (I'm trying to package this in a reusable class library, and _member above points to a method in the application assembly). If I run my little test app without the debugger it works fine, however my application is a little more robust and has general exception handling which is getting triggered because of this. I'm wondering if there is just some attribute or something (or perhaps some reflection parameter I'm missing?) I can use to make the exception be caught like it's supposed to.

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  • Item rendered via a DataTemplate with any Background Brush renders selection coloring behind item.

    - by Mike L
    I have a ListBox which uses a DataTemplate to render databound items. The XAML for the datatemplate is as follows: <DataTemplate x:Key="NameResultTemplate"> <WrapPanel x:Name="PersonResultWrapper" Margin="0" Orientation="Vertical" Background="{Binding Converter={StaticResource NameResultToColor}, Mode=OneWay}" > <i:Interaction.Triggers> <i:EventTrigger EventName="MouseDown"> <cmd:EventToCommand x:Name="SelectPersonEventCommand" Command="{Binding Search.SelectedPersonCommand, Mode=OneWay, Source={StaticResource Locator}}" CommandParameter="{Binding Mode=OneWay}" /> </i:EventTrigger> </i:Interaction.Triggers> <TextBlock x:Name="txtPersonName" TextWrapping="Wrap" Margin="0" VerticalAlignment="Top" Text="{Binding PersonName}" FontSize="24" Foreground="Black" /> <TextBlock x:Name="txtAgencyName" TextWrapping="Wrap" Text="{Binding AgencyName}" HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="0" FontStyle="Italic" Foreground="Black" /> <TextBlock x:Name="txtPIDORI" TextWrapping="Wrap" Text="{Binding PIDORI}" HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="0" FontStyle="Italic" Foreground="Black" /> <TextBlock x:Name="txtDescriptors" TextWrapping="Wrap" Text="{Binding DisplayDescriptors}" Margin="0" VerticalAlignment="Top" Foreground="Black"/> <Separator Margin="0" Width="400" /> </WrapPanel> </DataTemplate> Note that there is a value converter called NameResultToColor which changes the background brush of the rendered WrapPanel to gradient brush depending on certain scenarios. All of this works as I'd expect, except when you click on any of the rendered ListBox items. When you click one, there is only the slightest sign of the selection coloring (the default bluish color). I can see a trace bit of it underneath my gradient-brushed item. If I reset the background brush to "no brush" then the selection rendering works properly. If I set the background brush to a solid color, it also fails to render as I'd expect. How can I get the selection coloring to be on top? What is trumping the selection rendering?

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  • DotNetOpenAuth occasionally throws a NotImplementedException

    - by Chris Moschini
    I have DotNetOpenAuth running on a background thread making calls to Google authorized with OAuth on a regular basis. About once a day, which is about one in 10,000 calls, I get the following Exception: An unhandled exception occurred and the process was terminated. Application ID: DefaultDomain Process ID: 3316 Exception: System.NotImplementedException Message: The method or operation is not implemented. StackTrace: at DotNetOpenAuth.Messaging.ProtocolException.GetObjectData(SerializationInfo info, StreamingContext context) in c:\Users\andarno\git\dotnetopenid\src\DotNetOpenAuth\Messaging\ProtocolException.cs:line 90 at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter, SerializationBinder binder) at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.Serialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter, SerializationBinder binder) at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck) at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck) at System.Runtime.Remoting.Channels.CrossAppDomainSerializer.SerializeObject(Object obj, MemoryStream stm) at System.AppDomain.Serialize(Object o) at System.AppDomain.MarshalObject(Object o) If it was thrown and caught once a day I'd be fine, but this is a big one - I'm getting this in the Application Error log on the server, and it's crashing the process entirely - the site goes down and restarts. Has anyone else run into this? Something I'm clearly doing wrong?

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  • Call to undefined function 'Encrypt' - Attempting to Link OMF Lib

    - by Changeling
    I created a DLL using Visual Studio 2005 VC++ and marked a function for export (for testing). I then took the .LIB file created, and ran it through the COFF2OMF converter program bundled with Borland C++ Builder 5 and it returns the following: C:\>coff2omf -v -lib:ms MACEncryption.lib MACEncryption2.lib COFF to OMF Converter Version 1.0.0.74 Copyright (c) 1999, 2000 Inprise Corporat ion Internal name Imported name ------------- ------------- ??0CMACEncryptionApp@@QAE@XZ ?Decrypt@CMACEncryptionApp@@QAEXXZ Encrypt Encrypt@0 I added the MACEncryption2.lib file to my C++ Builder 5 Project by going to Project-Add to Project.. and selecting the library. The application links, but it cannot find the Encrypt function that I am declaring for export as follows in the VC++ code: extern "C" __declspec(dllexport) BSTR* __stdcall Encrypt() { CoInitialize(NULL); EncryptionManager::_EncryptionManagerPtr pDotNetCOMPtr; HRESULT hRes = pDotNetCOMPtr.CreateInstance(EncryptionManager::CLSID_EncryptionManager); if (hRes == S_OK) { BSTR* str = new BSTR; BSTR filePath = (BSTR)"C:\\ICVER001.REQ"; BSTR encrypt = (BSTR)"\"test"; pDotNetCOMPtr->EncryptThirdPartyMessage(filePath, encrypt, str); return str; } return NULL; CoUninitialize (); } C++ Builder Code: __fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner) { Encrypt(); } (Yes I know I am encapsulating another DLL.. I am doing this for a reason since Borland can't 'see' the .NET DLL definitions) Can anyone tell me what I am doing wrong so I can figure out why Builder cannot find the function Encrypt() ?

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  • Binding ListBox ItemCount to IvalueConverter

    - by Ben
    Hi All, I am fairly new to WPF so forgive me if I am missing something obvious. I'm having a problem where I have a collection of AggregatedLabels and I am trying to bind the ItemCount of each AggregatedLabel to the FontSize in my DataTemplate so that if the ItemCount of an AggregatedLabel is large then a larger fontSize will be displayed in my listBox etc. The part that I am struggling with is the binding to the ValueConverter. Can anyone assist? Many thanks! XAML Snippet <DataTemplate x:Key="TagsTemplate"> <WrapPanel> <TextBlock Text="{Binding Name, Mode=Default}" TextWrapping="Wrap" FontSize="{Binding ItemCount, Converter={StaticResource CountToFontSizeConverter}, Mode=Default}" Foreground="#FF0D0AF7"/> </WrapPanel> </DataTemplate> <ListBox x:Name="tagsList" ItemsSource="{Binding AggregatedLabels, Mode=Default}" ItemTemplate="{StaticResource TagsTemplate}" Style="{StaticResource tagsStyle}" Margin="200,10,16.171,11.88" /> AggregatedLabel Collection using (DB2DataReader dr = command.ExecuteReader()) { while (dr.Read()) { AggregatedLabelModel aggLabel = new AggregatedLabelModel(); aggLabel.ID = Convert.ToInt32(dr["LABEL_ID"]); aggLabel.Name = dr["LABEL_NAME"].ToString(); LabelData.Add(aggLabel); } } Converter public class CountToFontSizeConverter : IValueConverter { #region IValueConverter Members public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { const int minFontSize = 6; const int maxFontSize = 38; const int increment = 3; int count = (int)value; if ((minFontSize + count + increment) < maxFontSize) { return minFontSize + count + increment; } return maxFontSize; } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } #endregion } AggregatedLabel Class public class AggregatedLabelModel { public int ID { get; set; } public string Name { get; set; } } CollectionView ListCollectionView labelsView = new ListCollectionView(LabelData); labelsView.GroupDescriptions.Add(new PropertyGroupDescription("Name"));

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  • 404 when getting private YouTube video even when logged in with the owner's account using gdata-pyth

    - by Gonzalo
    If a YouTube video is set as private and I try to fetch it using the gdata Python API a 404 RequestError is raised, even though I have done a programmatic login with the account that owns that video: from gdata.youtube import service yt_service = service.YouTubeService(email=my_email, password=my_password, client_id=my_client_id, source=my_source, developer_key=my_developer_key) yt_service.ProgrammaticLogin() yt_service.GetYouTubeVideoEntry(video_id='IcVqemzfyYs') --------------------------------------------------------------------------- RequestError Traceback (most recent call last) <ipython console> /usr/lib/python2.4/site-packages/gdata/youtube/service.pyc in GetYouTubeVideoEntry(self, uri, video_id) 203 elif video_id and not uri: 204 uri = '%s/%s' % (YOUTUBE_VIDEO_URI, video_id) --> 205 return self.Get(uri, converter=gdata.youtube.YouTubeVideoEntryFromString) 206 207 def GetYouTubeContactFeed(self, uri=None, username='default'): /usr/lib/python2.4/site-packages/gdata/service.pyc in Get(self, uri, extra_headers, redirects_remaining, encoding, converter) 1100 'body': result_body} 1101 else: -> 1102 raise RequestError, {'status': server_response.status, 1103 'reason': server_response.reason, 'body': result_body} 1104 RequestError: {'status': 404, 'body': 'Video not found', 'reason': 'Not Found'} This happens every time, unless I go into my YouTube account (through the YouTube website) and set it public, after that I can set it as private and back to public using the Python API. Am I missing a step or is there another (or any) way to fetch a YouTube video set as private from the API? Thanks in advance.

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  • How can I modify a scalar reference passed to a subroutine reference

    - by Mark
    I have a function to convert documents into different formats, which then calls another function based on the type document. It's pretty straight forward for everything aside from HTML documents which require a bit of cleaning up, and that cleaning up is different based on where it's come from. So I had the idea that I could pass a reference to a subroutine to the convert function so the caller has the opportunity to modify the HTML, kinda like so (I'm not at work so this isn't copy-and-pasted): package Converter; ... sub convert { my ($self, $filename, $coderef) = @_; if ($filename =~ /html?$/i) { $self->_convert_html($filename, $coderef); } } sub _convert_html { my ($self, $filename, $coderef) = @_; my $html = $self->slurp($filename); $coderef->(\$html); #this modifies the html $self->save_to_file($filename, $html); } which is then called by: Converter->new->convert("./whatever.html", sub { s/<html>/<xml>/i }); I've tried a couple of different things along these lines but I keep on getting 'Use of uninitialized value in substitution (s///)'. Is there any way of doing what I'm trying to do? Thanks

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  • How to add a service to the type descriptor context of a property grid in .Net?

    - by Jules
    I have an app that allows the user to choose an image, at design time, either as a straight image, or from an image list. All cool so far, except that this is not happening from the visual studio property browser, its happening from a property grid that is a part of a type editor. My problem is, both the image picker (actually resource picker), and the imagelist type converter rely on some design-time services to get the job done. In the case of imagelist, its the IReferenceService and in the case of the resource picker its a service called _DTE. In the first instance of an edit from the visual studio property browser, I could get a reference to these services but (1) how can I add them to the type descriptor context of my property grid? It would be better, for future proofing, if I could just copy a reference to all of the services in the type descriptor context. (2) Where does the property browser get these services from in the first place? ETA: I still don't know how to do it, but I now know it is possible. (1) Sub-class control and add a property whose type is an array of buttons. (2) Add it to a form. (3) Select the new control on the design service and edit the new property in the property browser. (4) The collection editor dialog pops-up (5) Add a button (6) Edit image and image list - the type editor and type converter, respectively, behave as they should.

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  • binding image with 2 values with convertor

    - by prince23
    hi, is it possiable to set 2 data field for an image control whiling binding **<Image Source="{Binding ItemID, Converter={StaticResource IDToImageConverter}}" Height="50" />** now here i need to add one more value Price now. need to send even price as an paramter for IDToImageConverter function how can i do it? now i need to check first price value there are 3 condition i neeed to check in my IDToImageConverter function if( price> 5o) { // then get the ItemID based on the value bind image here if(ItemID >20) { // bind image1 } if(ItemID >50) { // bind image2 } } if( price> 100) { // as above codition we do here } now how can i add these above functionality in IDToImageConverter ? any idea how i can solve it <Image Source="{Binding ItemID, Converter={StaticResource IDToImageConverter}}" Height="50" /> </DataTemplate> </data:DataGridTemplateColumn.CellTemplate> </data:DataGridTemplateColumn> </data:DataGrid.Columns> </data:DataGrid> public class IDToImageConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { Uri uri = new Uri("~/Images/" + value.ToString()+ ".jpg", UriKind.Relative); return new BitmapImage(uri); } thanks in advance. for anyhelp you provide prince

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  • Limiting the width of a TextBlock in Silverlight

    - by Druzil
    The obvious MaxWidth gets ignored and the text in the "DisplayBox" TextBlock displays the whole text even if this text continues past the parent container controls (to the edge of the silverlight area. <win:HierarchicalDataTemplate x:Key="hierarchicalTemplate" ItemsSource="{Binding _children}"> <Border BorderThickness="0" BorderBrush="Orange" HorizontalAlignment="Stretch" Background="{Binding Converter={StaticResource BackgroundConverter}}"> <toolkit:DockPanel LastChildFill="True" Width="{Binding HeirarchyLevel, Converter={StaticResource WidthConverter}}" Height="20"> <Canvas toolkit:DockPanel.Dock="Right" Width="20" MouseLeftButtonUp="Arrow_MouseLeftButtonDown"> <Rectangle Width="20" Height="20" Fill="Transparent" /> <Line Stroke="Black" X1="5" Y1="10" X2="17" Y2="10" /> <Line Stroke="Black" X1="11" Y1="5" X2="17" Y2="10" /> <Line Stroke="Black" X1="11" Y1="15" X2="17" Y2="10" /> </Canvas> <Ellipse Canvas.Top="5" Width="10" Height="10" Fill="Green" toolkit:DockPanel.Dock="Right" MouseLeftButtonDown="Ellipse_MouseLeftButtonDown" /> <Canvas Width="Auto" Loaded="TextArea_Loaded"> <TextBlock Name="DisplayBox" FontFamily="Arial" FontSize="17" Foreground="Black" Width="Auto" Text="{Binding TaskName}" MouseLeftButtonUp="TextBlock_MouseLeftButtonUp" /> <TextBox Name="EditBox" FontFamily="Arial" FontSize="10" Foreground="Black" Height="20" Text="{Binding TaskName}" Visibility="Collapsed" LostFocus="TextBox_LostFocus" /> <Line Stroke="Black" X1="0" Y1="10" X2="202" Y2="10" Width="Auto" /> </Canvas> </toolkit:DockPanel> </Border> </win:HierarchicalDataTemplate>

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  • Custom progress bar label text via binding

    - by Alexander K
    I was playing with progress bar customization in Silverlight application. What I want to reach is to have progress bar label to show current its state in the following format: "Value / Maximum". So, user will see what is the current value, and what is the maximum possible value. Here is a style for progress bar I use: <Style x:Key="ProgressBarStyle" TargetType="ProgressBar"> <Setter Property="Width" Value="97.21" /> <Setter Property="Height" Value="19" /> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="ProgressBar"> <Canvas x:Name="LevelField" Width="99" Height="21"> ... <TextBlock ... DataContext="{TemplateBinding Value}" Text="{Binding Converter={StaticResource DecNumberToStringConverter}}"/> </Canvas> </ControlTemplate> </Setter.Value> </Setter> </Style> The way I want to implement this, is to have a value converter, that will convert current value and maximum possible into the proper string. It does work properly, if it is written like above. However, I also need to provide ConverterParameter for Convertor, but not sure how to make it. When I write like this: , ConvertParameter={Binding Maximum}, it shows error on start, that Text attribute is not found in TextBlock. I was also trying to set DataContext as {RelativeSource Self}, but then it didn't displays error that DataContext attribute is not found. How to make the described progress bar label properly?

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  • <h:selectOneMenu> ValueChangeListener Problem

    - by Ehsun
    I have two <h:selectOneMenu> tags on my form like this: <h:outputText value="#{lbls.incomeType}:"/> <h:selectOneMenu id="incomeType" label="#{lbls.incomeType}" onchange="submit();" valueChangeListener="#{price.earnTypeValueChanged}" immediate="true"> <f:selectItems value="#{price.earnTypes}"/> <f:converter converterId="ir.khorasancustoms.EarnTypeConverter"/> </h:selectOneMenu> <h:message for="incomeType" infoClass="info" errorClass="error" warnClass="warning" fatalClass="fatal"/> <h:outputText value="#{lbls.earnAttribute}:"/> <h:selectOneMenu id="earnAttribute" label="#{lbls.earnAttribute}" value="#{price.price.earnAttribute}"> <f:selectItems value="#{price.earnAttributes}"/> <f:converter converterId="ir.khorasancustoms.EarnAttributeConverter"/> </h:selectOneMenu> <h:message for="incomeType" infoClass="info" errorClass="error" warnClass="warning" fatalClass="fatal"/> <h:messages globalOnly="true" layout="table" infoClass="info" warnClass="warning" errorClass="error" fatalClass="fatal"/> <h:button value="#{lbls.cancel}" outcome="index"/> <h:commandButton value="#{lbls.ok}" action="#{price.save}"/> the handler in the bean looks like this: public void earnTypeValueChanged(ValueChangeEvent event) { EarnType newEarnType = (EarnType) event.getNewValue(); earnAttributes = newEarnType.getAttributes(); FacesContext.getCurrentInstance().renderResponse(); } Everything works fine, except the user needs to press the OK button twice because the first one fires the earnTypeValueChanged. How is that caused and how can I fix it? Update 1: public void earnTypeValueChanged(ValueChangeEvent event) { EarnType oldEarnType = (EarnType) event.getOldValue(); EarnType newEarnType = (EarnType) event.getNewValue(); earnAttributes = newEarnType.getAttributes(); if (!newEarnType.equals(oldEarnType)) { FacesContext.getCurrentInstance().renderResponse(); } }

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  • What am I doing wrong with my ItemsControl & databinding?

    - by Joel
    I'm reworking my simple hex editor to practice using what I've recently learned about data binding in WPF. I'm not sure what I'm doing wrong here. As I understand it, for each byte in the collection "backend" (inherits from ObservableCollection), my ItemsControl should apply the DataTemplate under resources. This template is just a textbox with a binding to a value converter. So I'm expecting to see a row of textboxes, each containing a string representation of one byte. When I use this XAML, all I get is a single line of uneditable text, which as far as I can tell doesn't use a textbox. What am I doing wrong? I've pasted my XAML in below, with the irrelevant parts (Menu declaration, schema, etc) removed. <Window ...> <Window.Resources> <local:Backend x:Key="backend" /> <local:ByteConverter x:Key="byteConverter" /> <DataTemplate DataType="byte"> <TextBox Text="{Binding Converter={StaticResource byteConverter}}" /> </DataTemplate> </Window.Resources> <StackPanel> <ItemsControl ItemsSource="{Binding Source={StaticResource backend}}"> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <WrapPanel /> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> </ItemsControl> </StackPanel> </Window>

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  • Convert Markdown text to RTF, using Ruby and Pandoc?

    - by niteshade
    Playing with Ruby and Ruby-Pandoc. Seems like a nice tool, if I can get it to work. I'd like to convert some Markdown text (with embedded lists and other fanciness) to Rich Text. Here's the text I'm converting: Title === This is a paragraph. Hallelujah. Here comes a nested list. --- * List item 1 * List item 1.1 * List item 1.2 * List item 2 * List item 2.1 Here's my Ruby code... require 'pandoc-ruby' input = File.read(test.md) converter = PandocRuby.new(input, from: :markdown, to: :rtf) puts converter.convert ... which (after saving the output to a file) produces a document without anything but a title: Here's the code of the RTF file: {\pard \ql \f0 \sa180 \li0 \fi0 \b \fs36 Title\par} {\pard \ql \f0 \sa180 \li0 \fi0 This is a paragraph. Hallelujah.\par} {\pard \ql \f0 \sa180 \li0 \fi0 \b \fs32 Here comes a nested list.\par} {\pard \ql \f0 \sa0 \li360 \fi-360 \bullet \tx360\tab List item 1\par} {\pard \ql \f0 \sa0 \li360 \fi-360 \bullet \tx360\tab List item 1.1\par} {\pard \ql \f0 \sa0 \li360 \fi-360 \bullet \tx360\tab List item 1.2\par} {\pard \ql \f0 \sa0 \li360 \fi-360 \bullet \tx360\tab List item 2\par} {\pard \ql \f0 \sa0 \li360 \fi-360 \bullet \tx360\tab List item 2.1\sa180\par} In addition, even if it did show up in my RTF viewer (Mac TextEdit), the RTF code seems to have lost all list nesting. I don't know how to diagnose this, whether I have not stated necessary header information or something in Ruby-Pandoc. Thanks in advance!

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  • Python OOP - object has no attribute

    - by user1744269
    I am attempting to learn how to program. I really do want to learn how to program; I love the building and design aspect of it. However, in Java and Python, I have tried and failed with programs as they pertain to objects, classes, methods.. I am trying to develop some code for a program, but im stumped. I know this is a simple error. However I am lost! I am hoping someone can guide me to a working program, but also help me learn (criticism is not only expected, but APPRECIATED). class Converter: def cTOf(self, numFrom): numFrom = self.numFrom numTo = (self.numFrom * (9/5)) + 32 print (str(numTo) + ' degrees Farenheit') return numTo def fTOc(self, numFrom): numFrom = self.numFrom numTo = ((numFrom - 32) * (5/9)) return numTo convert = Converter() numFrom = (float(input('Enter a number to convert.. '))) unitFrom = input('What unit would you like to convert from.. ') unitTo = input('What unit would you like to convert to.. ') if unitFrom == ('celcius'): convert.cTOf(numFrom) print(numTo) input('Please hit enter..') if unitFrom == ('farenheit'): convert.fTOc(numFrom) print(numTo) input('Please hit enter..')

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  • Text Wrapping in SSRS

    - by anna
    Hi, How do I accomplish text wrapping of table fields in SSRS Report, and proper landscaping when rendering the report to PDF format Thanks in advance Anna

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  • make folder structure at device side in iphone

    - by Ekra
    Hi friends, I have a folder structure at server side. Inside the folders there are files of all format like .txt, .pdf. I get the structure in XML format. Now I want to create the same folder structure that is present in server side at my iphone documents folder with only the names of files inside it and not the content of the files. eg: folder1 1.text(it is inside folder1) folder2 2.pdf(it is inside folder2) folder3 subFolder3 (it is inside folder3) 3.txt (it is inside subFolder3) folder4 4.txt How I need to handle the overall approach. Any help would be highly appreciated. Waiting for your reply

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  • Acrobat Reader ActiveX in WebBrowser stealing focus [C#]

    - by Maciej
    I'm using webBrowser.Navigate(url) control to display page. I noticed this action steals focus from current control (grid) and than I have problem to focus grid back (tired myGrid.Focus, .Select etc...) This is really annoying behaviour of browser... Does anyone knows how to prevent focus stealing by Browser or (if not) hot to force to focus control back ? EDIT: I've also tried webBrowser.DocumentCompleted event to focus back to grid EDIT 2 Good case to test this is openning PDF files webBrowser.Navigate(@"C:\TEMP\test.pdf") I believe this is ActiveX issue. On first glance it looks that this is not problem with focusing control but loosing entire Form focus... EDIT 3 I tried another approach: Form keyPress event: I thought I can capture form's keyPress and move focus from WebBrowser / AdobeReader ActiveX to my control. But surprisingly event is not fired! Looks Reader taken all control and there is no way to do anything programically until you do mouse click on (at least) form's caption Any advice (s) ?

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  • Read half precision float (float16 IEEE 754r) binary data in matlab

    - by Michael
    you have been a great help last time, i hope you can give me some advise this time, too. I read a binary file into matlab with bit16 (format = bitn) and i get a string of ones and zeros. bin = '1 00011 1111111111' (16 bits: 1. sign, 2-6. exponent, 7-16. mantissa) According to ftp://www.fox-toolkit.org/pub/fasthalffloatconversion.pdf it can be 'converted' like out = (-1)^bin(1) * 2^(bin(2:6)-15) * 1.bin(7:16) [are exponent and mantissa still binary?] Can someone help me out and tell me how to deal with the 'eeeee' and '1.mmmmmmmmmm' as mentioned in the pdf, please. Thanks a lot! Michael

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  • Documenting applications - automation / semi-automation for screenshots?

    - by bguiz
    For me one of the biggest bores of being a developer is writing user documentation. (I am referring to the stuff that gets exported into PDF files files that ship with the product, not comments in code here). The task off adding or updating new bits of text to the existing documentation is OK. However having to take screenshots of select screens can be quite a tedious process. Is there a way to automate or even semi-automate the process of taking screenshots? The main requirement is the ability to crop images such that they contain only the window, including window manager areas (such as the title bar). The secondary requirement is that any format is OK, so long as it can be exported to PDF. EDIT: Any more biters?

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