C# Professional - LINQ - Exercices
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LINQ Examples
Use of Let and Select
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// {
List<Element> elements = BuildList();
// LINQ Query.
var subset = from theElement in elements
let specificElement = theElement.Name.ToLower()
where specificElement.Contains("ca")
select theElement;
foreach (Element theElement in subset)
{
Console.WriteLine(theElement.Name + " " + theElement.AtomicNumber);
}
}
private static List<Element> BuildList()
{
return new List<Element>
{
{ new Element() { Symbol="K", Name="Potassium", AtomicNumber=19}},
{ new Element() { Symbol="Ca", Name="Calcium", AtomicNumber=20}},
{ new Element() { Symbol="Sc", Name="Scandium", AtomicNumber=21}},
{ new Element() { Symbol="Ti", Name="Titanium", AtomicNumber=22}},
{ new Element() { Symbol="V", Name="Vanadium", AtomicNumber=23}},
{ new Element() { Symbol="Cr", Name="Chromium", AtomicNumber=24}}
};
}
// {
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Use of orderby/groupBy
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// {
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Useful extension methods
Cout()
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// {
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Skip()
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// {
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Join
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// {
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