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  • How can I enable Vista/Win 7 theming/style for a ToolTip control?

    - by Joakim Hårsman
    In Windows Vista and Windows 7, ToolTips have a new visual style or theme, they are shiny grey metallic. How can I enable the new style for a ToolTip control? Some controls, like ListViews and ToolBars, use the new tooltips automatically, but other tooltips are rendered with the old yellow XP style. I've tried sending an TTM_SETWINDOWTHEME message but nothing happens and I'm not sure what string I am supposed to use for the visual style name. SetWindowTheme doesn't work either, I've used it successfully on ListViews and TreeViews to set the "Explorer" style (see http://www.danielmoth.com/Blog/TreeViewVista.aspx), but that doesn't seem to work on ToolTips. I'm using the plain win32 C API.

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  • Why use semicolon?

    - by Art
    Are there any reasons, apart from subjective visual perception and cases where you have multiple statements on the same line, to use semicolon at the end of statements in Javascript?

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  • Last Grid Column Not Auto Resizing With Grid

    - by photo_tom
    I'm having a problem with my TextBoxs not "Auto" resizing. I'm trying to create a form that behaves and looks like the Properties Editor in Visual Studio. What appears to be happening is that the third column is not expanding to fill all of the available remaining space in the grid. Image below is how my form looks on startup. The width of the textboxs is determined by the MinWidth setting on the third ColumnDefinition statement. Also, the Width is set to "*". With any other setting, the resizing done with the GridSplitter doesn't work correctly. <StackPanel Orientation="Vertical" VerticalAlignment="Top" x:Name="Stacker" Grid.IsSharedSizeScope="True"> <Expander x:Name="Expand" IsExpanded="True" Header="This is a test of a Second Panel" Width="{Binding Width, ElementName=Stacker}"> <Grid x:Name="EditGrid1" Margin="3" > <Grid.RowDefinitions> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" MinWidth="50" SharedSizeGroup="SharedSize1" /> <ColumnDefinition Width="Auto" SharedSizeGroup="SharedSize2" /> <ColumnDefinition Width="*" MinWidth="50" x:Name="ValueCol" /> </Grid.ColumnDefinitions> <GridSplitter Grid.Column="1" x:Name="ToolBoxSplitter1" Grid.Row="1" Grid.RowSpan="6" Panel.ZIndex="1" HorizontalAlignment="Stretch" ResizeBehavior="PreviousAndNext" Width="3"/> <TextBlock MaxHeight="40" Grid.Column="0" Grid.Row="1" Text="{x:Static lex:DoSomeThingView.Name}" /> <TextBlock MaxHeight="40" Grid.Column="0" Grid.Row="2" Text="{x:Static lex:DoSomeThingView.Address}" /> <TextBlock MaxHeight="40" Grid.Column="0" Grid.Row="3" Text="{x:Static lex:DoSomeThingView.Zip}" /> <TextBlock MaxHeight="40" Grid.Column="0" Grid.Row="4" Text="{x:Static lex:DoSomeThingView.NumberOfDoors}" TextTrimming="CharacterEllipsis" Grid.IsSharedSizeScope="True" /> <TextBlock MaxHeight="40" Grid.Column="0" Grid.Row="5" Text="{x:Static lex:DoSomeThingView.DoubleNumber}" /> <TextBox Grid.Column="2" Grid.Row="1" x:Name="UserName1" MaxHeight="50" TextWrapping="Wrap" VerticalScrollBarVisibility="Auto" SpellCheck.IsEnabled="True" /> <TextBox Grid.Column="2" Grid.Row="2" x:Name="Address1" /> <TextBox Grid.Column="2" Grid.Row="3" x:Name="Zip1" /> <TextBox Grid.Column="2" Grid.Row="4" x:Name="NumberOfDoors1" /> <TextBox Grid.Column="2" Grid.Row="5" x:Name="DoubleNumber1" /> </Grid> </Expander> </StackPanel> Any suggestions on how to correct this?

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  • PHP beautifiers (libraries for formatting code)

    - by takeshin
    Previously, my intention was to ask: Do you know any open source SQL formatter/beautifier library for PHP projects? But I think, I'd better ask: Which code formatting libraries written in PHP are the best? Let's list them all in one place. My types: for CSS syntax: Css Tidy for PHP: PEAR's PHP_Beautifier for HTML syntax: Tidy

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  • XML: When to use attributes instead of child nodes?

    - by Rosarch
    For tree leaves in XML, when is it better to use attributes, and when is it better to use descendant nodes? For example, in the following XML document: <?xml version="1.0" encoding="utf-8" ?> <savedGame> <links> <link rootTagName="zombies" packageName="zombie" /> <link rootTagName="ghosts" packageName="ghost" /> <link rootTagName="players" packageName="player" /> <link rootTagName="trees" packageName="tree" /> </links> <locations> <zombies> <zombie> <positionX>41</positionX> <positionY>100</positionY> </zombie> <zombie> <positionX>55</positionX> <positionY>56</positionY> </zombie> </zombies> <ghosts> <ghost> <positionX>11</positionX> <positionY>90</positionY> </ghost> </ghosts> </locations> </savedGame> The <link> tag has attributes, but it could also be written as: <link> <rootTagName>trees</rootTagName> <packageName>tree</packageName> </link> Similarly, the location tags could be written as: <zombie positionX="55" positionY="56" /> instead of: <zombie> <positionX>55</positionX> <positionY>56</positionY> </zombie> What reasons are there to prefer one over the other? Is it just a stylistic issue? Any performance considerations?

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  • Moving to .net 4 results in System.Transactions Critical: 0

    - by john
    Hi I have fully working project in .net 3.5SP1, with EF 1 ORM. I tried to upgrade to .net 4. No issue while upgrading... Then i ran the project and got a NullExecptionError, with no stack trace... and no way to debug. Looking at the output windows i can read this: System.Transactions Critical: 0 : <TraceRecord xmlns="http://schemas.microsoft.com/2004/10/E2ETraceEvent/TraceRecord" Severity="Critical"><TraceIdentifier>http://msdn.microsoft.com/TraceCodes/System/ActivityTracing/2004/07/Reliability/Exception/Unhandled</TraceIdentifier><Description>Unhandled exception</Description><AppDomain>OTCSouscriptions.vshost.exe</AppDomain><Exception><ExceptionType>System.NullReferenceException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType><Message>Object reference not set to an instance of an object.</Message><StackTrace> at System.Windows.StyleHelper.GetInstanceValue(UncommonField`1 dataField, DependencyObject container, FrameworkElement feChild, FrameworkContentElement fceChild, Int32 childIndex, DependencyProperty dp, Int32 i, EffectiveValueEntry&amp;amp; entry) at System.Windows.FrameworkTemplate.ReceivePropertySet(Object targetObject, XamlMember member, Object value, DependencyObject templatedParent) at System.Windows.FrameworkTemplate.&amp;lt;&amp;gt;c__DisplayClass6.&amp;lt;LoadOptimizedTemplateContent&amp;gt;b__4(Object sender, XamlSetValueEventArgs setArgs) at System.Xaml.XamlObjectWriter.OnSetValue(Object eventSender, XamlMember member, Object value) at System.Xaml.XamlObjectWriter.Logic_ApplyPropertyValue(ObjectWriterContext ctx, XamlMember prop, Object value, Boolean onParent) at System.Xaml.XamlObjectWriter.Logic_DoAssignmentToParentProperty(ObjectWriterContext ctx) at System.Xaml.XamlObjectWriter.Logic_AssignProvidedValue(ObjectWriterContext ctx) at System.Xaml.XamlObjectWriter.WriteEndObject() at System.Xaml.XamlWriter.WriteNode(XamlReader reader) at System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlReader templateReader, XamlObjectWriter currentWriter) Any help appreciated... Thanks John

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  • Calling a datatrigger for a radio button inside a datagrid

    - by Farax
    I have a datagrid with one column having a radio button. I want to set the GroupName when a certain condition is reached. Below is the code <Custom:DataGrid.Columns> <!-- ONLY ENABLED WHEN THE ITEM TYPE IS SINGLESELECT OR SINGLESELECT WITH ADDIOTIONAL DATA--> <Custom:DataGridTemplateColumn CanUserResize="False" MinWidth="20" > <Custom:DataGridTemplateColumn.CellTemplate> <DataTemplate> <RadioButton IsChecked="{Binding IsChecked}" d:DesignWidth="16" d:DesignHeight="16" GroupName="SingleChoiceSelection" Template="{DynamicResource RadioButtonTemplate}" Background="{DynamicResource BackgroundNew}" BorderBrush="#FF7A7171" Foreground="#FF6C6C6C" Margin="0" /> </DataTemplate> </Custom:DataGridTemplateColumn.CellTemplate> </Custom:DataGridTemplateColumn> <Custom:DataGridTextColumn Header="Choices" Binding="{Binding ChoiceText}" CellStyle="{DynamicResource DataGridCellStyle2}" MinWidth="150" /> </Custom:DataGrid.Columns> </Custom:DataGrid> The ItemSource contains a property called isChecked and I want to change the foreground color when isChecked is changed to true. How do i do this with a datatrigger?

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  • MVVM: Thin ViewModels and Rich Models

    - by Dan Bryant
    I'm continuing to struggle with the MVVM pattern and, in attempting to create a practical design for a small/medium project, have run into a number of challenges. One of these challenges is figuring out how to get the benefits of decoupling with this pattern without creating a lot of repetitive, hard-to-maintain code. My current strategy has been to create 'rich' Model classes. They are fully aware that they will be consumed by an MVVM pattern and implement INotifyPropertyChanged, allow their collections to be observed and remain cognizant that they may always be under observation. My ViewModel classes tend to be thin, only exposing properties when data actually needs to be transformed, with the bulk of their code being RelayCommand handlers. Views happily bind to either ViewModels or Models directly, depending on whether any data transformation is required. I use AOP (via Postsharp) to ease the pain of INotifyPropertyChanged, making it easy to make all of my Model classes 'rich' in this way. Are there significant disadvantages to using this approach? Can I assume that the ViewModel and View are so tightly coupled that if I need new data transformation for the View, I can simply add it to the ViewModel as needed?

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  • Access objects in button event handler

    - by developer
    How to access list of observable collection objects that I create in my constructor to bind to the UI, in the Save button event handler. I have created a observable collection of objects in my constructor and then I bind that in the UI. Now how will I access those objects, as I want to save them in the database. I tried doing ProgramViewModel newtest = DataContext as ProgramViewModel; But newtest is always null. Though I can see the data in when I hover my mouse over DataContext while debugging..

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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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  • Win32 API Programming - Is it worth ?

    - by nXqd
    Now I code win32 api windows explorer . But it seems quite hard to me.I've a month to do it. But through the time I code, I wonder is it worth that I code win32 api ? . When we can create GUI easily with MFC or even easier with C#. What should I do ? 1- Keep coding with win32 api to deeply understand about them. 2- Just learn and code some programs to understand how they work. Can you determine how many time does it take in each choice ( or how many projects ). Thx for reading, as a 2nd student of IT University I really want your advice in this. My purpose is becoming a good and effective programmer :) PS: recommended books are really appreciated.

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  • How do I get the ListBox from a ListBoxItem?

    - by Shimmy
    Sub FindAncestor(Of TParent, reference As DependencyObject) As TParent 'find the parent ListBox container End Sub 'Usage Sub Handle(lbi As ListBoxItem) Dim lb = GetListBox(lbi) End Sub I have a button in a ListBoxItem datatemplate, I want in the handler of the button to access the parent ListBox (this is the way I want to access it, since it's all nested in other DataTemplates, ItemsControls and stuff).

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  • Avoid the collapsing effect on TreeView after updating data

    - by Manolete
    I have a TreeView used to display events. It works great, however every time new events are coming in and populating the tree collapse the tree again to the original position. That is very annoying when the refresh time is less than 1 second and it does not allow the user to interact with the items of the tree. Is there any way to avoid this behaviour? <TreeView Margin="1" BorderThickness="0" Name="eventsTree" ItemsSource="{Binding EventAlertContainers}" Background="#00000000" ScrollViewer.VerticalScrollBarVisibility="Auto" FontSize="14" VirtualizingStackPanel.IsVirtualizing="True"> <TreeView.Resources> <HierarchicalDataTemplate DataType="{x:Type C:EventAlertContainer}" ItemsSource="{Binding EventAlerts}"> <StackPanel Orientation="Horizontal"> <Image Width="20" Height="20" Margin="3,0" Source="Resources\Process_info_32.png" /> <TextBlock FontWeight="Bold" FontSize="16" Text="{Binding Description}" /> </StackPanel> </HierarchicalDataTemplate> <HierarchicalDataTemplate DataType="{x:Type C:EventAlert}" ItemsSource="{Binding Events}"> <StackPanel Orientation="Horizontal"> <Image Width="20" Height="20" Margin="0,0" Source="Resources\clock2_32.jpg" /> <TextBlock FontWeight="DemiBold" FontSize="14" Text="{Binding Name}" /> </StackPanel> </HierarchicalDataTemplate> <HierarchicalDataTemplate DataType="{x:Type C:Event}"> <StackPanel Orientation="Horizontal"> <Image Width="20" Height="20" Margin="0,0" Source="Resources\Task_32.png" /> <StackPanel Orientation="Vertical"> <TextBlock FontSize="12" Text="{Binding Name}" /> </StackPanel> </StackPanel> </HierarchicalDataTemplate> </TreeView.Resources> </TreeView>

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  • something like INotifyCollectionChanged fires on xml file changed

    - by netmajor
    It's possible to implement INotifyCollectionChanged or other interface like IObservable to enable to bind filtered data from xml file on this file changed ? I see examples with properties or collection, but what with files changes ? I have that code to filter and bind xml data to list box: XmlDocument channelsDoc = new XmlDocument(); channelsDoc.Load("RssChannels.xml"); XmlNodeList channelsList = channelsDoc.GetElementsByTagName("channel"); this.RssChannelsListBox.DataContext = channelsList;

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  • Why does my IMultiBindingConverter get an array of strings when used to set TextBox.Text?

    - by mcohen75
    Hi- I'm trying to use a MultiBinding with a converter where the child elements also have a converter. The XAML looks like so: <TextBlock> <TextBlock.Text> <MultiBinding Converter="{StaticResource localizedMessageConverter}" ConverterParameter="{x:Static res:Resources.RecordsFound}" > <Binding Converter="{StaticResource localizedMessageParameterConverter}" ConverterParameter="ALIAS" Path="Alias" Mode="OneWay" /> <Binding Converter="{StaticResource localizedMessageParameterConverter}" ConverterParameter="COUNT" Path="Count" Mode="OneWay" /> </MultiBinding> </TextBlock.Text> The problem I'm facing here is, whenever this is used with a TextBlock to specify the Text property, my IMultiValueConverter implementation gets an object collection of strings instead of the class returned by the IValueConverter. It seems that the ToString() method is called on the result of the inner converter and passed to the IMultiValueConverter. If used to specify the Content property of Label, all is well. It seems to me that the framework is assuming that the return type will be string, but why? I can see this for the MultiBinding since it should yield a result that is compatible with TextBlock.Text, but why would this also be the case for the Bindings inside a MultiBinding? If I remove the converter from the inner Binding elements, the native types are returned. In my case string and int.

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  • Java operator overloading

    - by nimcap
    Not using operators makes my code obscure. (aNumber / aNother) * count is better than aNumber.divideBy(aNother).times(count) After 6 months of not writing a single comment I had to write a comment to the simple operation above. Usually I refactor until I don't need comment. And this made me realize that it is easier to read and perceive math symbols and numbers than their written forms. For example TWENTY_THOUSAND_THIRTEEN.plus(FORTY_TWO.times(TWO_HUNDERED_SIXTY_ONE)) is more obscure than 20013 + 42*261 So do you know a way to get rid of obscurity while not using operator overloading in Java? Update: I did not think my exaggeration on comments would cause such trouble to me. I am admitting that I needed to write comment a couple of times in 6 months. But not more than 10 lines in total. Sorry for that. Update 2: Another example: budget.plus(bonusCoefficient.times(points)) is more obscure than budget + bonusCoefficient * points I have to stop and think on the first one, at first sight it looks like clutter of words, on the other hand, I get the meaning at first look for the second one, it is very clear and neat. I know this cannot be achieved in Java but I wanted to hear some ideas about my alternatives.

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  • How to make XmlnsDefinition work on the local assembly?

    - by Scott Bilas
    I've started using the XmlnsDefinition attribute to tie together some CLR namespaces into a single xmlns for convenience in XAML. Unfortunately, it seems that this only works when using foreign assemblies. If I have a XAML file in the same assembly as the types that are in the namespace I'm referencing from XmlnsDefinition, then it says the type does not exist in the xmlns I am defining. Moving the type to a foreign assembly fixes the problem. Is there a way to use XmlnsDefinition on an assembly and have it be used from within that assembly via XAML?

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  • Binding to XMLDataProvider in Code Behind

    - by Robert Vernunft
    Hello, i have a problem moving a XMLDataprovider Binding with XPath from Xaml to code behind. Labels.xml <?xml version="1.0" encoding="utf-8" ?> <Labels> <btnOne Label="Button1"/> <btnTwo Label="Button2"/> </Labels> MainWindow.xaml <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" x:Class="bindings.MainWindow" Title="MainWindow" Height="350" Width="525"> <Window.Resources> <XmlDataProvider x:Key="XMLLabels" Source="Labels.xml" XPath="Labels"/> </Window.Resources> <Grid> <Button Content="{Binding Source={StaticResource XMLLabels}, XPath=btnOne/@Label}" Height="23" HorizontalAlignment="Left" Margin="12,12,0,276" Name="btnOne" Width="75" /> <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="93,12,0,276" Name="btnTwo" Width="75" Loaded="btnTwo_Loaded" /> </Grid> </Window> MainWindow.xaml.cs ... private void btnTwo_Loaded(object sender, RoutedEventArgs e) { String Type = sender.GetType().Name; if (Type == "Button") { Button btn = sender as Button; Binding label = new Binding("XMLBind"); XmlDataProvider xmlLabels = (XmlDataProvider)this.FindResource("XMLLabels"); label.Source = xmlLabels; label.XPath = "btnTwo/@Header"; btn.SetBinding(Button.ContentProperty, label); } } ... The binding to content of btnOne works as aspected "Button1". But btnTwo is set to an empty string. The Output shows no errors. Thanks for any advice.

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  • How do I add VisualStateManager to my Surface project?

    - by AskAboutGadgets
    I have a surface project and I would like to use controls designed in Blend. I added these controls to my microsoft surface project, but I receive an error when I try to compile it. Error 1 The tag 'VisualStateManager.VisualStateGroups' does not exist in XML namespace 'http://schemas.microsoft.com/winfx/2006/xaml/presentation'. Line 12 Position 4. UserControl1.xaml 12 4 How can I solve this issue? Can I use the VisualStateManager in Surface application at all?

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