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VB.NET IDictionary<TKey,TValue>.Item属性代码示例

本文整理汇总了VB.NET中System.Collections.Generic.IDictionary<TKey,TValue>.Item属性的典型用法代码示例。如果您正苦于以下问题:VB.NET IDictionary<TKey,TValue>.Item属性的具体用法?VB.NET IDictionary<TKey,TValue>.Item怎么用?VB.NET IDictionary<TKey,TValue>.Item使用的例子?那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在System.Collections.Generic.IDictionary<TKey,TValue>的用法示例。


在下文中一共展示了IDictionary<TKey,TValue>.Item属性的3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,您的评价将有助于系统推荐出更棒的VB.NET代码示例。

示例1: openWith

' The Item property is the default property, so you 
' can omit its name when accessing elements. 
Console.WriteLine("For key = ""rtf"", value = {0}.", _
    openWith("rtf"))

' The default Item property can be used to change the value
' associated with a key.
openWith("rtf") = "winword.exe"
Console.WriteLine("For key = ""rtf"", value = {0}.", _
    openWith("rtf"))

' If a key does not exist, setting the default item property
' for that key adds a new key/value pair.
openWith("doc") = "winword.exe"
开发者ID:VB.NET开发者,项目名称:System.Collections.Generic,代码行数:14,代码来源:IDictionary.Item

示例2: openWith

' The default Item property throws an exception if the requested
' key is not in the dictionary.
Try
    Console.WriteLine("For key = ""tif"", value = {0}.", _
        openWith("tif"))
Catch 
    Console.WriteLine("Key = ""tif"" is not found.")
End Try
开发者ID:VB.NET开发者,项目名称:System.Collections.Generic,代码行数:8,代码来源:IDictionary.Item

示例3:

' When a program often has to try keys that turn out not to
' be in the dictionary, TryGetValue can be a more efficient 
' way to retrieve values.
Dim value As String = ""
If openWith.TryGetValue("tif", value) Then
    Console.WriteLine("For key = ""tif"", value = {0}.", value)
Else
    Console.WriteLine("Key = ""tif"" is not found.")
End If
开发者ID:VB.NET开发者,项目名称:System.Collections.Generic,代码行数:9,代码来源:IDictionary.Item


注:本文中的System.Collections.Generic.IDictionary<TKey,TValue>.Item属性示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。