CommaDelimitedStringCollection Class
Represents a collection of string elements separated by commas. This class cannot be inherited.
Assembly: System.Configuration (in System.Configuration.dll)
System.Collections.Specialized.StringCollection
System.Configuration.CommaDelimitedStringCollection
| Name | Description | |
|---|---|---|
![]() | CommaDelimitedStringCollection() | Creates a new instance of the CommaDelimitedStringCollection class. |
| Name | Description | |
|---|---|---|
![]() | Count | Gets the number of strings contained in the StringCollection.(Inherited from StringCollection.) |
![]() | IsModified | Gets a value that specifies whether the collection has been modified. |
![]() | IsReadOnly | Gets a value indicating whether the collection object is read-only. |
![]() | IsSynchronized | Gets a value indicating whether access to the StringCollection is synchronized (thread safe).(Inherited from StringCollection.) |
![]() | Item[Int32] | Gets or sets a string element in the collection based on the index. |
![]() | SyncRoot | Gets an object that can be used to synchronize access to the StringCollection.(Inherited from StringCollection.) |
| Name | Description | |
|---|---|---|
![]() | Add(String) | Adds a string to the comma-delimited collection. |
![]() | AddRange(String[]) | Adds all the strings in a string array to the collection. |
![]() | Clear() | Clears the collection. |
![]() | Clone() | Creates a copy of the collection. |
![]() | Contains(String) | Determines whether the specified string is in the StringCollection.(Inherited from StringCollection.) |
![]() | CopyTo(String[], Int32) | Copies the entire StringCollection values to a one-dimensional array of strings, starting at the specified index of the target array.(Inherited from StringCollection.) |
![]() | Equals(Object) | Determines whether the specified object is equal to the current object.(Inherited from Object.) |
![]() | GetEnumerator() | Returns a StringEnumerator that iterates through the StringCollection.(Inherited from StringCollection.) |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetType() | |
![]() | IndexOf(String) | Searches for the specified string and returns the zero-based index of the first occurrence within the StringCollection.(Inherited from StringCollection.) |
![]() | Insert(Int32, String) | Adds a string element to the collection at the specified index. |
![]() | Remove(String) | Removes a string element from the collection. |
![]() | RemoveAt(Int32) | Removes the string at the specified index of the StringCollection.(Inherited from StringCollection.) |
![]() | SetReadOnly() | Sets the collection object to read-only. |
![]() | ToString() | Returns a string representation of the object.(Overrides Object.ToString().) |
| Name | Description | |
|---|---|---|
![]() ![]() | ICollection.CopyTo(Array, Int32) | Copies the entire StringCollection to a compatible one-dimensional Array, starting at the specified index of the target array.(Inherited from StringCollection.) |
![]() ![]() | IEnumerable.GetEnumerator() | Returns a IEnumerator that iterates through the StringCollection.(Inherited from StringCollection.) |
![]() ![]() | IList.Add(Object) | Adds an object to the end of the StringCollection.(Inherited from StringCollection.) |
![]() ![]() | IList.Contains(Object) | Determines whether an element is in the StringCollection.(Inherited from StringCollection.) |
![]() ![]() | IList.IndexOf(Object) | Searches for the specified Object and returns the zero-based index of the first occurrence within the entire StringCollection.(Inherited from StringCollection.) |
![]() ![]() | IList.Insert(Int32, Object) | Inserts an element into the StringCollection at the specified index.(Inherited from StringCollection.) |
![]() ![]() | IList.Remove(Object) | Removes the first occurrence of a specific object from the StringCollection.(Inherited from StringCollection.) |
![]() ![]() | IList.IsFixedSize | Gets a value indicating whether the StringCollection object has a fixed size.(Inherited from StringCollection.) |
![]() ![]() | IList.IsReadOnly | Gets a value indicating whether the StringCollection object is read-only.(Inherited from StringCollection.) |
![]() ![]() | IList.Item[Int32] | Gets or sets the element at the specified index.(Inherited from StringCollection.) |
| Name | Description | |
|---|---|---|
![]() | AsParallel() | Overloaded. Enables parallelization of a query.(Defined by ParallelEnumerable.) |
![]() | AsQueryable() | Overloaded. Converts an IEnumerable to an IQueryable.(Defined by Queryable.) |
![]() | Cast<TResult>() | Casts the elements of an IEnumerable to the specified type.(Defined by Enumerable.) |
![]() | OfType<TResult>() | Filters the elements of an IEnumerable based on a specified type.(Defined by Enumerable.) |
This class represents a string collection that is serialized as a comma-delimited list of string elements.
The following code example demonstrates how to use the CommaDelimitedStringCollection type.
using System; using System.Collections.Generic; using System.Text; using System.Configuration; using System.Collections; using System.Web; using System.Web.Configuration; using System.Collections.Specialized; namespace Samples.AspNet.Config { class CommaDelimitedStrCollection { static void Main(string[] args) { // Display title and info. Console.WriteLine("ASP.NET Configuration Info"); Console.WriteLine("Type: CommaDelimitedStringCollection"); Console.WriteLine(); // Set the path of the config file. string configPath = "/aspnet"; // Get the Web application configuration object. Configuration config = WebConfigurationManager.OpenWebConfiguration(configPath); // Get the section related object. AuthorizationSection configSection = (AuthorizationSection)config.GetSection("system.web/authorization"); // Get the authorization rule collection. AuthorizationRuleCollection authorizationRuleCollection = configSection.Rules; // Create a CommaDelimitedStringCollection object. CommaDelimitedStringCollection myStrCollection = new CommaDelimitedStringCollection(); for (int i = 0; i < authorizationRuleCollection.Count; i++) { if (authorizationRuleCollection.Get(i).Action.ToString().ToLower() == "allow") { // Add values to the CommaDelimitedStringCollection object. myStrCollection.AddRange( authorizationRuleCollection.Get(i).Users.ToString().Split( ",".ToCharArray())); } } Console.WriteLine("Allowed Users: {0}", myStrCollection.ToString()); // Count the elements in the collection. Console.WriteLine("Allowed User Count: {0}", myStrCollection.Count); // Call the Contains method. Console.WriteLine("Contains 'userName1': {0}", myStrCollection.Contains("userName1")); // Determine the index of an element // in the collection. Console.WriteLine("IndexOf 'userName0': {0}", myStrCollection.IndexOf("userName0")); // Call IsModified. Console.WriteLine("IsModified: {0}", myStrCollection.IsModified); // Call IsReadyOnly. Console.WriteLine("IsReadOnly: {0}", myStrCollection.IsReadOnly); Console.WriteLine(); Console.WriteLine("Add a user name to the collection."); // Insert a new element in the collection. myStrCollection.Insert(myStrCollection.Count, "userNameX"); Console.WriteLine("Collection Value: {0}", myStrCollection.ToString()); Console.WriteLine(); Console.WriteLine("Remove a user name from the collection."); // Remove an element of the collection. myStrCollection.Remove("userNameX"); Console.WriteLine("Collection Value: {0}", myStrCollection.ToString()); // Display and wait Console.ReadLine(); } } }
Available since 2.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.




