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C# ObservableCollection.CopyTo方法代码示例

本文整理汇总了C#中System.Collections.ObservableCollection.CopyTo方法的典型用法代码示例。如果您正苦于以下问题:C# ObservableCollection.CopyTo方法的具体用法?C# ObservableCollection.CopyTo怎么用?C# ObservableCollection.CopyTo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。您也可以进一步了解该方法所在System.Collections.ObservableCollection的用法示例。


在下文中一共展示了ObservableCollection.CopyTo方法的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C#代码示例。

示例1: CopyToTest

        public static void CopyToTest()
        {
            string[] anArray = new string[] { "one", "two", "three", "four" };
            ObservableCollection<string> collection = new ObservableCollection<string>((IEnumerable<string>)anArray);

            string[] aCopy = new string[collection.Count];
            collection.CopyTo(aCopy, 0);
            for (int i = 0; i < anArray.Length; ++i)
                Assert.Equal(anArray[i], aCopy[i]);

            // copy observable collection starting in middle, where array is larger than source.
            aCopy = new string[collection.Count + 2];
            int offsetIndex = 1;
            collection.CopyTo(aCopy, offsetIndex);
            for (int i = 0; i < aCopy.Length; i++)
            {
                string value = aCopy[i];
                if (i == 0)
                    Assert.True(null == value, "Should not have a value since we did not start copying there.");
                else if (i == (aCopy.Length - 1))
                    Assert.True(null == value, "Should not have a value since the collection is shorter than the copy array..");
                else
                {
                    int indexInCollection = i - offsetIndex;
                    Assert.Equal(collection[indexInCollection], aCopy[i]);
                }
            }
        }
开发者ID:johnhhm,项目名称:corefx,代码行数:28,代码来源:ObservableCollection_MethodsTest.cs

示例2: CopyToTest_Negative

        public static void CopyToTest_Negative()
        {
            string[] anArray = new string[] { "one", "two", "three", "four" };
            ObservableCollection<string> collection = new ObservableCollection<string>(anArray);

            int[] iArrInvalidValues = new Int32[] { -1, -2, -100, -1000, -10000, -100000, -1000000, -10000000, -100000000, -1000000000, Int32.MinValue };
            foreach (var index in iArrInvalidValues)
            {
                string[] aCopy = new string[collection.Count];
                Assert.Throws<ArgumentOutOfRangeException>(() => collection.CopyTo(aCopy, index));
            }

            int[] iArrLargeValues = new Int32[] { collection.Count, Int32.MaxValue, Int32.MaxValue / 2, Int32.MaxValue / 10 };
            foreach (var index in iArrLargeValues)
            {
                string[] aCopy = new string[collection.Count];
                Assert.Throws<ArgumentException>(() => collection.CopyTo(aCopy, index));
            }

            Assert.Throws<ArgumentNullException>(() => collection.CopyTo(null, 1));

            string[] copy = new string[collection.Count - 1];
            Assert.Throws<ArgumentException>(() => collection.CopyTo(copy, 0));

            copy = new string[0];
            Assert.Throws<ArgumentException>(() => collection.CopyTo(copy, 0));
        }
开发者ID:johnhhm,项目名称:corefx,代码行数:27,代码来源:ObservableCollection_MethodsTest.cs

示例3: Test_ObservableCollection_CopyTo

 public void Test_ObservableCollection_CopyTo()
 {
     var list = new ObservableCollection<int>() { 6, 5, 8 };
     var array = new int[5];
     list.CopyTo(array, 1);
     Assert.Equal(0, array[0]);
     Assert.Equal(6, array[1]);
     Assert.Equal(5, array[2]);
     Assert.Equal(8, array[3]);
     Assert.Equal(0, array[4]);
 }
开发者ID:fs7744,项目名称:ObjectValidator,代码行数:11,代码来源:ObservableCollection_Test.cs


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