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法律研究在 C# 中检查 StringCollection 是否为只读
如要检查 StringCollection 是否为只读，代码如下所示 −
示例
using System;
using System.Collections.Specialized;
public class Demo {
public static void Main() {
StringCollection stringCol = new StringCollection();
String[] arr = new String[] { "100", "200", "300", "400", "500" };
Console.WriteLine("Array elements...");
foreach (string res in arr) {
Console.WriteLine(res);
}
stringCol.AddRange(arr);
Console.WriteLine("Is the StringCollection read-only? = "+stringCol.IsReadOnly);
Console.WriteLine("Does the specified string is in the StringCollection? = "+stringCol.Contains("800"));
}
}输出
将产生以下输出 −
Array elements... 100 200 300 400 500 Is the StringCollection read-only? = False Does the specified string is in the StringCollection? = False
示例
我们再看一个示例 −
using System;
using System.Collections.Specialized;
public class Demo {
public static void Main() {
StringCollection stringCol = new StringCollection();
String[] arr = new String[] { "John", "Tim", "Kevin", "Bradman", "Katie", "Tom", "Nathan" };
Console.WriteLine("String array elements...");
foreach (string res in arr) {
Console.WriteLine(res);
}
stringCol.AddRange(arr);
Console.WriteLine("Is the StringCollection read-only? = "+stringCol.IsReadOnly);
Console.WriteLine("Does the specified string is in the StringCollection? = "+stringCol.Contains("Tim"));
}
}输出
将产生以下输出 −
String array elements... John Tim Kevin Bradman Katie Tom Nathan Is the StringCollection read-only? = False Does the specified string is in the StringCollection? = True
更新于：05-12-2019
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