During my work with expression trees for a few days now, I came across something that I find difficult to understand; hopefully someone will be able so shed some light here....If you code ...Expression<Func<dynamic, dynamic>> expr1 = x => 2 * x;... the co...
I'm stuck with the problem below and wondering is someone out there will be able to help. I have added comments to the code to make it self-explanatory but let me know if you need more info or if the problem is unclear....Thanks a lot in advance!...Edit: ...
Suppose I have:...class Foo {
public int Bar { get; set; }
}
public void SetThree( Foo x )
{
Action<Foo, int> fnSet = (xx, val) => { xx.Bar = val; };
fnSet(x, 3);
}
...How can I rewrite the definition of fnSet using an expression trees, e.g.:...
I have this expression : ...Expression<Func<string, bool>> f = s => s.Length < 5;
...ParameterExpression p = Expression.Parameter (typeof (string), "s");
MemberExpression stringLength = Expression.Property (p, "Length");
ConstantExpression five = Expressi...
I want to define a Lambda Expression with an ...out... parameter. Is it possible to do it? ...Below are code snippets from a C# .Net 4.0 console app that I tried....As you can see in Procedure25 I can use lambda expressions to define a delegate that has a...
I have this code which produce a delegate which multiply myNumber by 5...ParameterExpression numParam = Expression.Parameter(typeof(int), "num");
ConstantExpression five = Expression.Constant(5, typeof(int));
BinaryExpression numMultiply = Expression.Mult...
I'm struggling to build an expression tree so I can dynamically do filtering on some data....I have come up with this, but it fails at the ...var lambda =... line...foreach (var rule in request.Where.Rules)
{
var parameterExpression = Expression.Param...