VB.NET Queryable.Select方法代码示例

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本文整理汇总了VB.NET中System.Linq.Queryable.Select方法的典型用法代码示例。如果您正苦于以下问题：VB.NET Queryable.Select方法的具体用法？VB.NET Queryable.Select怎么用？VB.NET Queryable.Select使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。

在下文中一共展示了Queryable.Select方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的VB.NET代码示例。

示例1: fruits

Dim fruits() As String = {"apple", "banana", "mango", "orange", _
                      "passionfruit", "grape"}

' Project an anonymous type that contains the
' index of the string in the source array, and
' a string that contains the same number of characters
' as the string's index in the source array.
Dim query = _
    fruits.AsQueryable() _
    .Select(Function(fruit, index) New With {index, .str = fruit.Substring(0, index)})

Dim output As New System.Text.StringBuilder
For Each obj In query
    output.AppendLine(obj.ToString())
Next

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

开发者ID:VB.NET开发者，项目名称:System.Linq，代码行数:18，代码来源:Queryable.Select

输出：

{ index = 0, str =  }
{ index = 1, str = b }
{ index = 2, str = ma }
{ index = 3, str = ora }
{ index = 4, str = pass }
{ index = 5, str = grape }

示例2: List

Dim range As New List(Of Integer)(New Integer() {1, 2, 3, 4, 5, 6, 7, 8, 9, 10})

' Project the square of each int value.
Dim squares As IEnumerable(Of Integer) = _
    range.AsQueryable().Select(Function(x) x * x)

Dim output As New System.Text.StringBuilder
For Each num As Integer In squares
    output.AppendLine(num)
Next

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

开发者ID:VB.NET开发者，项目名称:System.Linq，代码行数:13，代码来源:Queryable.Select

输出：