How to parse and convert a delegate into an expression tree
Describes how to use c# dynamics to convert a delegate into an expression tree
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Search found 8232 results on 330 pages for 'boolean expression'.
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Expression Evaluator - Basic Level
An expression evaluator that doesn't support parantheses at the beginningRead the article
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Expression Studio 4 download
Microsoft announced the general availability of Expression Studio 4 which includes upgraded versions of Expression Blend (including Sketchflow), Encoder, Web (including SuperPreview) and Design.Read the article
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Which style is preferable when writing this boolean expression?
- by Jeppe Stig Nielsen
I know this question is to some degree a matter of taste. I admit this is not something I don't understand, it's just something I want to hear others' opinion about. I need to write a method that takes two arguments, a boolean and a string. The boolean is in a sense (which will be obvious shortly) redundant, but it is part of a specification that…Read the article
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Expression Studio 4 Launch of Blend, SketchFlow, Encoder and More!
Today Expression Studio 4 (which includes Expression Blend, SketchFlow, Expression Web, Expression Design, Expression Encoder) launched at the Internet Week conference in New York City! There are a ton of new features in these products, some of which we have shown off already in some episodes of Silverlight TV a http://silverlight.tv. You can…Read the article
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Can LINQ expression classes implement the observer pattern instead of deferred execution?
- by Tormod
Hi. We have issues within an application using a state machine. The application is implemented as a windows service and is iteration based (it "foreaches" itself through everything) and there are myriads of instances being processed by the state machine. As I'm reading the MEAP version of Jon Skeets book "C# in Depth, 2nd ed", I'm wondering…Read the article
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Workaround for datadude deployment bug - NullReferenceException
- by jamiet
I have come across a bug in Visual Studio 2010 Database Projects (aka datadude aka DPro aka Visual Studio Database Development Tools aka Visual Studio Team Edition for Database Professionals aka Juneau aka SQL Server Data Tools) that other people may encounter so, for the purposes of googling, I'm writing this blog post about it. Through my…Read the article
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Why am I getting an error when return TRUE/FALSE to type Boolean?
- by phill
I wrote the following code: import java.lang.*; import DB.*; private Boolean validateInvoice(String i) { int count = 0; try { //check how many rowsets ResultSet c = connection.DBquery("select count(*) from Invce i,cust c where tranid like '"+i+"' and i.key = c.key "); while (c.next()) …Read the article
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Can I strictly evaluate a boolean expression stored as a string in Java?
- by D Lawson
I would like to be able to evaluate an boolean expression stored as a string, like the following: "hello" == "goodbye" && 100 < 101 I know that there are tons of questions like this on SO already, but I'm asking this one because I've tried the most common answer to this question, BeanShell, and it allows for the evaluation of…Read the article
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Render Silverlight Animation to video file
- by VOliveira
Hi guys I need to be able to render a silverlight storyboard animation to video. The animated content itself could be simple UIElements, Images or even two or more videos playing at the same time. Several ideas came to mind like RenderTargetBitmap on a single frame basis, but: 1) I've never tested this against video embedded content 2)…Read the article
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boolean operations on meshes
- by lathomas64
given a set of vertices and triangles for each mesh. Does anyone know of an algorithm, or a place to start looking( I tried google first but haven't found a good place to get started) to perform boolean operations on said meshes and get a set of vertices and triangle for the resulting mesh? Of particular interest are subtraction and union.…Read the article
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How to use a int2 database-field as a boolean in Java using JPA/Hibernate
- by mg
Hello... I write an application based on an already existing database (postgreSQL) using JPA and Hibernate. There is a int2-column (activeYN) in a table, which is used as a boolean (0 = false (inactive), not 0 = true (active)). In the Java application i want to use this attribute as a boolean. So i defined the attribute like this: …Read the article
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Member "TextTrimming" is not recognized in Expression Blend?
- by emalamisura
So I am using Silverlight 4.0 I have the following code but its giving me the following error: "The member "TextTrimming" is not recognized or is not accessible", but it works fine when I run in Visual Studio 2010. <TextBlock Margin="0,30,28.789,50.455" TextWrapping="Wrap" TextTrimming="WordEllipsis" HorizontalAlignment="Right"…Read the article
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Expression Studio 4 Premium & SketchFlow: Am I screwed?
- by Refracted Paladin
Through work I have an Visual Studio Premium with MSDN subscription that I love. However, my biggest disappointment of the last 12 months was discovering that our 2nd from the top level subscription was not enough to get me Sketchflow! This sucks and I am borderline distraught! What are my options? Upgrading to an Ultimate…Read the article
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Big problem with regular expression in Lex (lexical analyzer)
- by Nazgulled
Hi, I have some content like this: author = "Marjan Mernik and Viljem Zumer", title = "Implementation of multiple attribute grammar inheritance in the tool LISA", year = 1999 author = "Manfred Broy and Martin Wirsing", title = "Generalized Heterogeneous Algebras and Partial…Read the article
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Left to right expression evaluation
- by David
In C# is it guaranteed that expressions are evaluated left to right? For example: myClass = GetClass(); if (myClass == null || myClass.Property > 0) continue; Are there any languages that do not comply?Read the article
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Regular Expression to split "/n"
- by Gnaniyar Zubair
I want to split the /n from my string in Java. For example, I have one String field which has 2 lines space ( /n). I have to find out lines ( wherever mopre than one lines is coming) and should replace with one line spaces. "This is Test Message thanks Zubair " From the above example, there are more spaces between…Read the article
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Regular expression to validate whether the data contains numeric ( or empty is also valid)
- by VinnaKanna
Hi all, i have to validate the data contains numeric or not and if it is not numeric return 0 and if it is numeric or empty return 1. Below is my query i tried in SQL SELECTdbo.Regex('^[0-9]','123') --- This is returning 1 SELECTdbo.Regex('^[0-9]','') -- this is not returning 1 but i want to return as 1 and i try to…Read the article
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Expression Versus Statement
- by Michael Wolfenden
I'm asking with regards to c#, but I assume its the same in most other languages. Does anyone have a good definition of expressions and statements and what the differences are. Thanks in advance.Read the article
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Does Expression Web produce semantically correct html?
- by CodeToGlory
I am usng Expressoin Web to design some pages and wondering if it generates xhtml that is compatible with all browsers.Read the article
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Error in ternary expression
- by Bipul
Consider the following code which shows compile time error : #include <stdio.h> int main(int argc, char** argv) { int x=5,y=0,z=2; int a=z?x,y?x:(y); // but z?x,y?x:y:z is not showing any error printf("%d",a); return 0; } Please help me explain the reason why z?x,y?x:y:z is not showing any error?Read the article
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Expression Studio 4 Premium & SketchFlow question; WTH
- by Refracted Paladin
Through work I have an Visual Studio Premium with MSDN subscription that I love. However, my biggest disappointment of the last 12 months was discovering that our 2nd from the top level subscription was not enough to get me Sketchflow! This is, most decidedly, NOT SHINY, and I am borderline distraught! What are my…Read the article
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Expression Blend 3 (Silverlight) gives me nothing on project compile
- by Buginator
When I press F5 the project compiles, and the new web page launches. However, the silverlight control loads (the standard load counter counts to 100%) but then the whole control just disappear. Only the left default menu bar (feedback etc) is visible. It's a very small project, my first actually. This also happened…Read the article
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Doubts on Expression Engine
- by bparanj
Is EE better than Plone? Is there a way to allow guest bloggers to post content in EE? Is anyone interested in attending the EE conference this year? There is a discount if we sign up as a group. Please contact me directly if you are interested bparanj at gmail.Read the article
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Datagrid custom header in Expression blend
- by Shalvius
Hello, i want DataGridCollumnHeader to look like this: http://yfrog.com/f/j3howgg/ (so i want to divide title to two(or more) subtitles) any ideas? thanksRead the article
