/// <summary>
/// Creates a copy of the current instance that is read-only.
/// <seealso cref="IsReadOnly"/>
/// </summary>
/// <returns>A read-only instance.</returns>
public NameValueCollectionEx ToReadOnly()
{
NameValueCollectionEx result = new NameValueCollectionEx();
result.Add(this);
result.IsReadOnly = true;
return result;
}
public void ToReadOnlyTest()
{
NameValueCollectionEx target = new NameValueCollectionEx();
target.Add("name", "value");
NameValueCollectionEx actual = target.ToReadOnly();
actual.Add("exception", "here");
}
/// <summary>
/// Creates a copy of the current instance that is read-only.
/// </summary>
/// <param name="value">Specifies the collection to convert to read-only.</param>
/// <returns>A read-only instance.</returns>
public static NameValueCollection ToReadOnly(this NameValueCollection value)
{
Contract.Requires<ArgumentNullException>(value != null, "value is null.");
NameValueCollectionEx result = new NameValueCollectionEx();
result.Add(value);
return result.ToReadOnly();
}
/// <summary>
/// Creates a copy of the current instance that is read-only.
/// </summary>
/// <param name="value">Specifies the collection to convert to read-only.</param>
/// <returns>A read-only instance.</returns>
public static NameValueCollection ToReadOnly(this NameValueCollection value)
{
if (value == null)
throw new ArgumentNullException("value", "value is null.");
NameValueCollectionEx result = new NameValueCollectionEx();
result.Add(value);
return result.ToReadOnly();
}