本文整理汇总了C#中ObservableDictionary.TryAddRange方法的典型用法代码示例。如果您正苦于以下问题：C# ObservableDictionary.TryAddRange方法的具体用法？C# ObservableDictionary.TryAddRange怎么用？C# ObservableDictionary.TryAddRange使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ObservableDictionary的用法示例。
在下文中一共展示了ObservableDictionary.TryAddRange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: TryAddRangeAddsNonExistingNewItems
public void TryAddRangeAddsNonExistingNewItems(int amountOfItemsToAdd)
{
// given
var keyValuePairs = Enumerable.Range(0, amountOfItemsToAdd)
.Select(i => new KeyValuePair<int, string>(i, $"#{i}"))
.ToList();
using (var observableDictionary = new ObservableDictionary<int, string>())
{
// when
IDictionary<int, string> nonAddedKeyValuePairs;
var tryAddResult = observableDictionary.TryAddRange(keyValuePairs, out nonAddedKeyValuePairs);
// then check whether all items have been accounted for
tryAddResult.Should().Be(true);
nonAddedKeyValuePairs.Should().NotBeNull();
nonAddedKeyValuePairs.Should().BeEmpty();
observableDictionary.Count.Should().Be(amountOfItemsToAdd);
foreach (var keyValuePair in keyValuePairs)
{
observableDictionary.Should().Contain(keyValuePair);
}
}
}示例2: TryAddRangeAddsNonExistingItemsAndReportsNonAddedBack
public void TryAddRangeAddsNonExistingItemsAndReportsNonAddedBack(int amountOfInitialItems, int amountOfItemsToAdd)
{
// given
var initialKeyValuePairs = Enumerable.Range(0, amountOfInitialItems)
.Select(i => new KeyValuePair<int, string>(i, $"#{i}"))
.ToList();
var keyValuePairsToAdd = Enumerable.Range(0, amountOfItemsToAdd)
.Select(i => new KeyValuePair<int, string>(i, $"#{i}"))
.ToList();
using (var observableDictionary = new ObservableDictionary<int, string>(initialKeyValuePairs))
{
// when
IDictionary<int, string> itemsThatCouldNotBeAdded;
var tryAddResult = observableDictionary.TryAddRange(keyValuePairsToAdd, out itemsThatCouldNotBeAdded);
// then check whether all items have been accounted for
tryAddResult.Should().Be(false);
itemsThatCouldNotBeAdded.Should().NotBeNull();
itemsThatCouldNotBeAdded.Should().NotBeEmpty();
observableDictionary.Count.Should().Be(amountOfInitialItems + amountOfItemsToAdd - itemsThatCouldNotBeAdded.Count);
foreach (var keyValuePair in keyValuePairsToAdd.Except(itemsThatCouldNotBeAdded))
{
observableDictionary.Should().Contain(keyValuePair);
}
foreach (var keyValuePair in initialKeyValuePairs.Intersect(keyValuePairsToAdd))
{
itemsThatCouldNotBeAdded.Should().Contain(keyValuePair);
}
}
}