publicboolTryGetValue(stringkey,outSystem.Web.Mvc.ValueProviderResultvalue); 參數 key String 要取得的項目索引鍵。 value ValueProviderResult 這個方法傳回時,如果有找到指定的索引鍵,則為與該索引鍵關聯的值,否則為value參數的型別預設值。 這個參數會以未初始化的狀態傳遞。
在下文中一共展示了Dictionary::GetValueForKeyAsDictionary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,您的评价将有助于系统推荐出更棒的C++代码示例。 示例1: CreateFromStructuredData ▲点赞 9▼ SearchFilterSP SearchFilter::CreateFromStructuredData( Target ...
public bool TryGetValue( string key, out ValueProviderResult value ) Parameterskey Type: System.String The key of the element to get.value Type: System.Web.Mvc.ValueProviderResult When this method returns, the value that is associated with the specified key, if the key is found; otherwise, ...
GetDictionaryValue<TKey, TValue>.Dictionary 屬性 發行項 2015/10/27 本文內容 語法 請參閱 取得或設定要從中讀取的字典。 命名空間: Microsoft.Activities 組件: Microsoft.Activities (在 Microsoft.Activities.dll 中) 語法 C# 複製 [RequiredArgumentAttribute] public InArgument<IDictionary<TKey, T...
Dictionary<TKey,TValue> Dictionary<TKey,TValue> Constructors Properties Methods Add Clear ContainsKey ContainsValue EnsureCapacity GetAlternateLookup GetEnumerator GetObjectData OnDeserialization Remove TrimExcess TryAdd TryGetAlternateLookup TryGetValue
Dictionary<TKey,TValue> 构造函数 属性 方法 添加 清除 ContainsKey ContainsValue EnsureCapacity GetEnumerator GetObjectData OnDeserialization 删除 TrimExcess TryAdd TryGetValue 显式接口实现 EqualityComparer<T> HashSet<T>。枚举 数 HashSet<T> IAsyncEnumerable<T> ...
public bool TryGetValue( string key, out ValueProviderResult value ) Parameterskey Type: System.String The key of the element to get.value Type: System.Web.Mvc.ValueProviderResult% When this method returns, the value that is associated with the specified key, if the key is found; otherwise,...
This is because it is entirely possible to have duplicate values, whereas keys must be unique within a dictionary. Get Key-Value Pairs from a Dictionary Simultaneously We often need to retrieve the complete key-value pair (called item) from a dictionary. There are a few different ways to do...
上面解释:1)TryGetValue是根据key返回相应的数据到value,如果没有key则返回默认值到value; 2)这个方法的返回是bool值,如果dictionary里有存在相应的key为true,没有存在,则为false 例子1 usingSystem;usingSystem.Collections.Generic;namespaceTryGetValueExp ...
The above code checks whether the keybrownexists in the dictionary, and assigns the value to the variablevalueif it does. It produces a message stating that the key is missing from the dictionary if it cannot be located. 3: Using LINQ (Language-Integrated Query) ...