Queryable.Skip<TSource>(IQueryable<TSource>, Int32) 方法

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static System::Linq::IQueryable<TSource> ^ Skip(System::Linq::IQueryable<TSource> ^ source, int count);

public static System.Linq.IQueryable<TSource> Skip<TSource>(this System.Linq.IQueryable<TSource> source, int count);

[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Enumerating collections as IQueryable can require creating new generic types or methods, which requires creating code at runtime. This may not work when AOT compiling.")]
public static System.Linq.IQueryable<TSource> Skip<TSource>(this System.Linq.IQueryable<TSource> source, int count);

static member Skip : System.Linq.IQueryable<'Source> * int -> System.Linq.IQueryable<'Source>

[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Enumerating collections as IQueryable can require creating new generic types or methods, which requires creating code at runtime. This may not work when AOT compiling.")>]
static member Skip : System.Linq.IQueryable<'Source> * int -> System.Linq.IQueryable<'Source>

<Extension()>
Public Function Skip(Of TSource) (source As IQueryable(Of TSource), count As Integer) As IQueryable(Of TSource)

类型参数

参数

返回

一个 IQueryable<T> 包含输入序列中指定索引之后发生的元素。

属性

RequiresDynamicCodeAttribute

例外

示例

下面的代码示例演示如何用于 Skip<TSource>(IQueryable<TSource>, Int32) 跳过排序数组中的指定数量的元素并返回其余元素。

int[] grades = { 59, 82, 70, 56, 92, 98, 85 };

// Sort the grades in descending order and
// get all except the first three.
IEnumerable<int> lowerGrades =
    grades.AsQueryable().OrderByDescending(g => g).Skip(3);

Console.WriteLine("All grades except the top three are:");
foreach (int grade in lowerGrades)
    Console.WriteLine(grade);

/*
    This code produces the following output:

    All grades except the top three are:
    82
    70
    59
    56
*/

Dim grades() As Integer = {59, 82, 70, 56, 92, 98, 85}

' Sort the grades in descending order and
' get all except the first three.
Dim lowerGrades = grades.AsQueryable() _
    .OrderByDescending(Function(g) g) _
    .Skip(3)

Dim output As New System.Text.StringBuilder
output.AppendLine("All grades except the top three are:")
For Each grade As Integer In lowerGrades
    output.AppendLine(grade)
Next

' Display the output.
MsgBox(output.ToString())

' This code produces the following output:

' All grades except the top three are:
' 82
' 70
' 59
' 56

注解

该方法Skip<TSource>(IQueryable<TSource>, Int32)生成一个表示调用Skip<TSource>(IQueryable<TSource>, Int32)自身为已构造泛型方法的一MethodCallExpression个方法。 然后，它将传递给MethodCallExpressionCreateQuery(Expression)由参数属性source表示Provider的方法IQueryProvider。

执行表示调用 Skip<TSource>(IQueryable<TSource>, Int32) 的表达式树导致的查询行为取决于参数类型的 source 实现。 预期行为是它跳过第source一个count元素并返回其余元素。