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4 results in tag: asp.net

Tree of Expressions

My understanding of expression tree is :...Expression trees are in-memory representation of expression like arithmetic or boolean expression.The expressions are stored into the parsed tree.so we can easily transalate into any other language....Linq to SQL...
asp.net c# expression-trees
asked by user274364

Combine Expressions instead of using multiple queries in Entity Framework

I have following generic queryable (which may already have selections applied):...IQueryable<TEntity> queryable = DBSet<TEntity>.AsQueryable(); ...Then there is the ...Provider... class that looks like this:...public class Provider<TEntity> { public E...
asp.net c# entity-framework expression-trees iqueryable
asked by Sebastian Krogull

C# 7.0 Value Tuple compile error?

When I am trying to compile the following code:...var post = iPostService.GetAll().Select(x => (x.Title, x.Author)); ...I get the compiler error: 'An expression tree may not contain a tuple literal.'...So I also tried this: ...var post = iPostService.GetA...
asp.net c#-7.0 expression-trees linq-to-entities valuetuple
asked by Tấn Sang

C# Expression Tree with Ignore Case or tolower

I want to create expression.Equal() with ignore case. Sample code:...if (!string.IsNullOrEmpty(request.BrandCode)) { MemberExpression me = Expression.Property(parmExpression, "BrandCode"); ConstantExpression constant = Expression.Constant(request...
.net asp.net c# expression-trees
asked by RajGan

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