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  • What are some examples of MemberBinding linq expressions?

    - by michielvoo
    There are three possibilities, but I can't find examples: System.Linq.Expressions.MemberAssignment System.Linq.Expressions.MemberListBinding System.Linq.Expressions.MemberMemberBinding I want to write some unit tests to see if I can handle them, but I don't know how to write them except for the first one, which seems to be new Foo { Property = "value" } where Property = "value" is an expression of type MemberAssignment. See also this MSDN article.

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  • Regular expressions

    - by Infinity
    Hello guys! I need a regular expression for findin a pattern. This is the pattern: id|name|code|mobile I created a pattern for this if I want to search by id (if id = 1): .*1.*|.*|.*|.* But it matches every pattern that contains number 1. What's the problem with it?

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  • Microsoft Blend 3 - Add Silverlight SDK Themes

    - by photo_tom
    I'm working on my first WPF project and would like to use one of the themes that I see in the Silverlight Tool Kit. All the help I've found is for Expression 2 and they show a different version of the Asset Tab. Can someone advise me how to do this. It looks like it should be simple, but I'm not seeing it.

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  • Where to find Helpful Silverlight Tutorial (interactive)

    - by mw
    I want to be able to create an interactive type program where a user can pin point plots on a graph, so if a user clicks anywhere on the map a dot of some sort will be plotted. I just need a helpful tutorial on silverlight to help me do this sort of thing. I have tried looking up google but I am not finding exactly what I want. ****I am using expression blend****** Thanks

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  • how to get a part of a video

    - by George2
    Hello everyone, I am using VSTS 2008 + C# + .Net 3.5 on Windows 7. I want to use Expression Encoder 3 to get a part of a video (original video in wmv format), in more details, in more details, I want to get the beginning 30 seconds of video (and save the 30-second video into another wmv file), and want to get the last 30 seconds of video (and save the 30-second video into another wmv file). Any reference code? I did not find MSDN provides too much reference sample code. thanks in advance, George

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  • generating thumbnail image for video

    - by George2
    Hello everyone, I am using VSTS 2008 + C# + .Net 3.5 on Windows 7. I want to use Expression Encoder 3 to generate thumbnail image for video (wmv format) every 30 seconds -- e.g. for a 5 minutes video, there will be 10 thumbnails which reflects video at the time of 0 second, 30 second, 1 minute, 1 minute and 30 seconds, etc. Any reference code? thanks in advance, George

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  • Remove dash from a phone number

    - by zoom_pat277
    What regular expression using java could be used to filter out dashes '-' and open close round brackets from a string representing phone numbers... so that (234) 887-9999 should give 2348879999 and similarly 234-887-9999 should give 2348879999. Thanks,

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  • Silverlight Project - Slide-in and out Panel - How?

    - by user118190
    I don't know what exactly this feature is, but I would like to simulate this in my Silverlight project. I am a C# developer and am moving to Silverlight and Expression Studio (Blend) for richer UX. Let's say I have some user controls and would like them to come into the screen (slide-in and out) as shown in the following site I found: http://www.templatemonster.com/silverlight-templates/28722.html On the menu, as one clicks on the menu item, the 'screen' slides to the left and then a new 'screen' slides in from the left to right. I really want to learn this stuff, but don't know what these 'features' are called? For example what are these 'screens' called in the xaml world? Also, what is the 'slide-in/out' called in the xaml world? Can someone point me to a good article/whitepaper? Thanks in advance for any advice.

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  • Visual Studio 2010 RC with .net 4 beta 2

    - by aip.cd.aish
    Does anyone know if it is possible to use Visual Studio 2010 RC with the beta 2 version of the .NET 4 framework? The reason I need to use the beta 2 version and not the RC is that there isn't an Expression Blend that can support the .NET 4 RC. I uninstalled the .NET 4 framework that installed with Visual Studio 2010, then I reinstalled the .NET 4 version Beta 2. But now when I launch Visual Studio, I get an error message saying "The operation could not be completed" and it shuts down. How can I make this work? Thanks!

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  • java.util.regex.Pattern matching the beginning of a String

    - by Pierre
    Hi all, Is it possible to know if a stream/string contains an input that could match a regular expression. For example String input="AA"; Pattern pat=Pattern.compile("AAAAAB"); Matcher matcher=pat.matcher(input); //<-- something here returning true ? or String input="BB"; Pattern pat=Pattern.compile("AAAAAB"); Matcher matcher=pat.matcher(input); //<-- something here returning false ? Thanks

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  • Blend 4 breaks VS2010 for Silverlight

    - by Adrian
    Hi, I had VS2010 running fine with Silverlight development. Then I installed Expression Blend 4. Now when I run VS2010 and try to debug a silverlight app I get an error saying "Unable to start debugging. The silverlight developer runtime is not installed. Please install a matching version." I've tried uninstalling silverlight tools, and reinstalling them from scratch (the latest april version). But I still get the same message. So basically I'm now unable to do VS2010 SL development. I'm on the verge of just rolling back to my last system restore point and giving up on Blend. But if I do that I'd be worried that Product Activation would never allow me to reinstall it in the future, since the MSDN download page implies I'm only ever allowed to install it on a single machine. Any help appreciated. Thanks

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  • When to use UserControl vs. Control in Silverlight?

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

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  • Select on multiple criteria with XPath

    - by Matt Thrower
    I have an XML document which looks something like this: <meadinkent> <record> <comp_div>MENSWEAR</comp_div> <sty_ret_type>ACCESSORIES</sty_ret_type> <sty_pdt_type>BELTS</sty_pdt_type> <pdt_category>AWESOME_BELTS</pdt_category> </record> <medinkent> I want to useXPath to select nodes which match all four elements and I'm having trouble getting the boolean syntax right. I'm trying this to match the first two just as a test: "/meadinkent/record/comp_div[.='" & comp_div & "'] and /meadinkent/record/sty_ret_type[.='" & sty_ret_type & "']" Which is failing, saying no nodes are returned. Obviously I'm being very stupid - what am I doing wrong? Cheers, mAtt

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  • typesafe NotifyPropertyChanged using linq expressions

    - by bitbonk
    Form Build your own MVVM I have the following code that lets us have typesafe NotifyOfPropertyChange calls: public void NotifyOfPropertyChange<TProperty>(Expression<Func<TProperty>> property) { var lambda = (LambdaExpression)property; MemberExpression memberExpression; if (lambda.Body is UnaryExpression) { var unaryExpression = (UnaryExpression)lambda.Body; memberExpression = (MemberExpression)unaryExpression.Operand; } else memberExpression = (MemberExpression)lambda.Body; NotifyOfPropertyChange(memberExpression.Member.Name); } How does this approach compare to standard simple strings approach performancewise? Sometimes I have properties that change at a very high frequency. Am I safe to use this typesafe aproach? After some first tests it does seem to make a small difference. How much CPU an memory load does this approach potentially induce?

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  • Sketchflow component target parent state

    - by user186106
    Hi, I'm using Sketchflow in Expression Blend 4 RC (although this is relevant to Blend 3 too). I have a screen with a datagrid on it (MainScreen) and there's a "New" button. I have a component screen that has a generic form (GenericForm) and a "Save and close" button. I have two states on MainScreen: State1 (and default): GenericForm visibility set to Hidden State2: GenericForm visibility set to Visible The "New" button on MainScreen has: Active State = State2, meaning when the "New" button is pressed, it changes the state of MainScreen to State2 (where the GenericForm component is visible). My problem is that I cannot link the "Save and close" button on GenericForm to State1 on MainScreen. In effect I would like to be able to press "Save and close" and for the MainScreen to set its state to State1. Any ideas?

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  • Xaml not WPF

    - by xan
    I am interested in using Xaml with expression blend for creating user interfaces in an application. However, because of the limitations of the target architecture, I cannot use WPF or C#. So, what I am interested in is in any examples / existing projects or advice from anyone who has experiance of this technology on the use of Xaml in it's "Pure" form as a specification language not tied to WPF. Specific questions: 1) Is it possible to use Blend + Xaml without the WPF elements, or without C# backing classes? 2) Are there any other implementations of Xaml parsers etc. which use different architectures, and can they work with blend or similar tools. 3) Are there alternative editor / designer tools which can help in this situation? I am aware of the MyXaml and MycroXaml projects, and have found a lot of resources on the web about Xaml, but 99% of it relates directly to WPF. This is fine for understanding the concepts of Xaml, but doesn't help with the implimentation I need. Many thanks!

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  • The property 'IsDataSource' was not found in type 'ViewModelLocator

    - by dieter-preconsult-be
    Hello I have the following code: <UserControl x:Class="TestApp.View.ViewAlarmLog" 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:Custom="http://schemas.microsoft.com/wpf/2008/toolkit" xmlns:mvvm="clr-namespace:Test.ViewModel"> <UserControl.Resources> <ResourceDictionary > <ResourceDictionary.MergedDictionaries> </ResourceDictionary.MergedDictionaries> <mvvm:ViewModelLocator x:Key="Locator" d:IsDataSource="True"/> </ResourceDictionary> </UserControl.Resources> the problem is dat i always get an error: The property 'IsDataSource' was not found in type 'ViewModelLocator'. " What could be the problem here ? Redgards Dieter

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  • How do I programmatically set property of control in aspx file ?

    - by Thomas Wanner
    This may be a very dumb question but I can't seem to get it working. I use at many places the following syntax for dynamically binding a property of a control in aspx file to the resource entry, e.g. <SomeFunnyControl Text="<%$ Resources : ResClass, ResEntry %>" /> I want to do a similar thing with a class containing some constants, something like <SomeFunnyControl Text="<%= MyConstantsClass.MyStringConstant %>" /> But this doesn't seem to work, it simply sets the text to the exact expression without evaluating it. I am using ASP.NET 3.5 btw. I have tried the databinding approach but I get an HttpParseException saying Databinding expressions are only supported on objects that have a DataBinding event.

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  • Java Counting # of occurrences of a word in a string

    - by Doug
    I have a large text file I am reading from and I need to find out how many times some words come up. For example, the word "the". I'm doing this line by line each line is a string. I need to make sure that I only count legit "the"'s the the in other would not count. This means I know I need to use regular expressions in some way. What I was trying so far is this: numSpace += line.split("[^a-z]the[^a-z]").length; I realize the regular expression may not be correct at the moment but I tried without that and just tried to find occurrences of the word the and I get wrong numbers to. I was under the impression this would split the string up into an array and how many times that array was split up was how many times the word is in the string. Any ideas I would be grateful.

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