Top "Expression" questions

Combination of several programming symbols and values intending to produce a result

Converting Expression<T, bool> to String

I need a way to recreate dynamically generated reports at some point in the future. Long story short, I need …

c# expression dynamic-linq
Meaning of (?s) in regex

I am very new to the regular expression arena. Recently I searched for a regular expression for Powershell that allows …

regex powershell expression
expression + variable value + normal text in plot maintitle

i want to achieve an title in R plot as the following: title = "The significance level you entered is alpha = 0.05 …

r plot expression title
Conditionally add css class in polymer

I have an element inside a polymer component and want to add a css class conditionally. <div class="bottom {{…

css expression polymer
PHP use string as operator

Say I have a string, $char. $char == "*". I also have two variables, $a and $b, which equal "4" and "5" respectively. How …

php expression operator-keyword evaluate
How to use a Func in an expression with Linq to Entity Framework?

I am trying to write a linq to entity extension method that takes a Func to select a property Id …

c# linq entity-framework expression func
SSRS - Conditional Text Formatting (Expressions using Switch)

I will open this up by stating that the expressions do work within the report. The problem is they aren't …

reporting-services properties textbox expression ssrs-expression
In C#, Is Expression API better than Reflection

Nowadays, I'm exploring C# Expression APIs. So I could use some help understanding how it works, including the difference between …

c# .net reflection expression
In After Effects Expressions, how to reference a Null Object in other comp?

I am looking how to link a layer position property in one comp to a null position property that is …

expression after-effects
Infix Calculator Expression Parser

How do I parse and evaluate expressions in an infix calculator grammar? I thought of two ways. The 1st involves …

c++ parsing stack expression calculator