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Check if a SortedList is read-only in C#
To check if a SortedList is read-only, the code is as follows −
Example
using System;
using System.Collections;
public class Demo {
public static void Main(String[] args) {
SortedList list = new SortedList();
list.Add("One", "IT");
list.Add("Two ", "Operations");
list.Add("Three", "Marketing");
list.Add("Four", "Purchase");
list.Add("Five", "Sales");
list.Add("Six", "Finance");
Console.WriteLine("SortedList elements...");
foreach(DictionaryEntry d in list) {
Console.WriteLine(d.Key + " " + d.Value);
}
Console.WriteLine("
List of values...SortedList");
IList col = list.GetValueList();
foreach(string res in col) {
Console.WriteLine(res);
}
Console.WriteLine("
SortedList is read-only? = "+list.IsReadOnly);
}
}Output
This will produce the following output −
SortedList elements... Five Sales Four Purchase One IT Six Finance Three Marketing Two Operations List of values...SortedList Sales Purchase IT Finance Marketing Operations SortedList is read-only? = False
Example
Let us see another example −
using System;
using System.Collections;
public class Demo {
public static void Main(String[] args) {
SortedList list = new SortedList();
list.Add("One", "Finance");
list.Add("Two", "Marketing");
list.Add("Three", "Sales");
list.Add("Four", "Purchase");
list.Add("Five", "Operations");
list.Add("Six", "IT");
Console.WriteLine("SortedList elements...");
foreach(DictionaryEntry d in list) {
Console.WriteLine(d.Key + " " + d.Value);
}
Console.WriteLine("
Index at key One = "+list.IndexOfKey("One"));
ICollection col = list.Keys;
Console.WriteLine("
Collection of Keys...");
foreach(string res in col)
Console.WriteLine(res);
Console.WriteLine("
SortedList is read-only? = "+list.IsReadOnly);
}
}Output
This will produce the following output −
SortedList elements... Five Operations Four Purchase One Finance Six IT Three Sales Two Marketing Index at key One = 2 Collection of Keys... Five Four One Six Three Two SortedList is read-only? = False
Updated on: 06-Dec-2019
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