private void btnAdd_Click(object sender, System.EventArgs e)
{
Question q = new Question();
q.Text = this.txtQuestion.Text;
for (int i = 0; i < this.txtAnswers.Lines.Length; i++) {
if (this.txtAnswers.Lines[i] != "") {
string[] line = this.txtAnswers.Lines[i].Split('|');
Answer a = new Answer(line[0], Int32.Parse(line[1]));
q.Answers.Add(a);
}
}
this.questions.Add(q);
this.listQuestions.Items.Add(q.Text);
this.txtAnswers.Clear();
this.txtQuestion.Clear();
this.txtQuestion.Focus();
}
public override void CopyTo(Answer[] array)
{
m_collection.CopyTo(array);
}
public override bool Contains(Answer x)
{
return m_collection.Contains(x);
}
public override void Insert(int pos, Answer x)
{
rwLock.AcquireWriterLock(timeout);
try {
collection.Insert(pos,x);
}
finally {
rwLock.ReleaseWriterLock();
}
}
public abstract void DisplayAnswer(Answer answer);
public override int IndexOf(Answer x)
{
int result = 0;
rwLock.AcquireReaderLock(timeout);
try {
result = collection.IndexOf(x);
}
finally {
rwLock.ReleaseReaderLock();
}
return result;
}
public override bool Contains(Answer x)
{
bool result = false;
rwLock.AcquireReaderLock(timeout);
try {
result = collection.Contains(x);
}
finally {
rwLock.ReleaseReaderLock();
}
return result;
}
public override void Remove(Answer x)
{
throw new NotSupportedException("This is a Read Only Collection and can not be modified");
}
/// <summary>
/// Returns the zero-based index of the first occurrence of a <see cref="Answer"/>
/// in the <c>AnswerCollection</c>.
/// </summary>
/// <param name="item">The <see cref="Answer"/> to locate in the <c>AnswerCollection</c>.</param>
/// <returns>
/// The zero-based index of the first occurrence of <paramref name="item"/>
/// in the entire <c>AnswerCollection</c>, if found; otherwise, -1.
/// </returns>
public virtual int IndexOf(Answer item)
{
for (int i=0; i != m_count; ++i)
if (m_array[i].Equals(item))
return i;
return -1;
}
/// <summary>
/// Copies the entire <c>AnswerCollection</c> to a one-dimensional
/// <see cref="Answer"/> array, starting at the specified index of the target array.
/// </summary>
/// <param name="array">The one-dimensional <see cref="Answer"/> array to copy to.</param>
/// <param name="start">The zero-based index in <paramref name="array"/> at which copying begins.</param>
public virtual void CopyTo(Answer[] array, int start)
{
if (m_count > array.GetUpperBound(0) + 1 - start)
throw new System.ArgumentException("Destination array was not long enough.");
Array.Copy(m_array, 0, array, start, m_count);
}
/// <summary>
/// Copies the entire <c>AnswerCollection</c> to a one-dimensional
/// <see cref="Answer"/> array.
/// </summary>
/// <param name="array">The one-dimensional <see cref="Answer"/> array to copy to.</param>
public virtual void CopyTo(Answer[] array)
{
this.CopyTo(array, 0);
}
/// <summary>
/// Determines whether a given <see cref="Answer"/> is in the <c>AnswerCollection</c>.
/// </summary>
/// <param name="item">The <see cref="Answer"/> to check for.</param>
/// <returns><c>true</c> if <paramref name="item"/> is found in the <c>AnswerCollection</c>; otherwise, <c>false</c>.</returns>
public virtual bool Contains(Answer item)
{
for (int i=0; i != m_count; ++i)
if (m_array[i].Equals(item))
return true;
return false;
}
/// <summary>
/// Adds the elements of a <see cref="Answer"/> array to the current <c>AnswerCollection</c>.
/// </summary>
/// <param name="x">The <see cref="Answer"/> array whose elements should be added to the end of the <c>AnswerCollection</c>.</param>
/// <returns>The new <see cref="AnswerCollection.Count"/> of the <c>AnswerCollection</c>.</returns>
public virtual int AddRange(Answer[] x)
{
if (m_count + x.Length >= m_array.Length)
EnsureCapacity(m_count + x.Length);
Array.Copy(x, 0, m_array, m_count, x.Length);
m_count += x.Length;
m_version++;
return m_count;
}
/// <summary>
/// Adds a <see cref="Answer"/> to the end of the <c>AnswerCollection</c>.
/// </summary>
/// <param name="item">The <see cref="Answer"/> to be added to the end of the <c>AnswerCollection</c>.</param>
/// <returns>The index at which the value has been added.</returns>
public virtual int Add(Answer item)
{
if (m_count == m_array.Length)
EnsureCapacity(m_count + 1);
m_array[m_count] = item;
m_version++;
return m_count++;
}
public override void Remove(Answer x)
{
rwLock.AcquireWriterLock(timeout);
try {
collection.Remove(x);
}
finally {
rwLock.ReleaseWriterLock();
}
}
public override void CopyTo(Answer[] array, int start)
{
m_collection.CopyTo(array,start);
}
public override int IndexOf(Answer x)
{
return m_collection.IndexOf(x);
}
/// <summary>
/// Inserts an element into the <c>AnswerCollection</c> at the specified index.
/// </summary>
/// <param name="index">The zero-based index at which <paramref name="item"/> should be inserted.</param>
/// <param name="item">The <see cref="Answer"/> to insert.</param>
/// <exception cref="ArgumentOutOfRangeException">
/// <para><paramref name="index"/> is less than zero</para>
/// <para>-or-</para>
/// <para><paramref name="index"/> is equal to or greater than <see cref="AnswerCollection.Count"/>.</para>
/// </exception>
public virtual void Insert(int index, Answer item)
{
ValidateIndex(index, true); // throws
if (m_count == m_array.Length)
EnsureCapacity(m_count + 1);
if (index < m_count) {
Array.Copy(m_array, index, m_array, index + 1, m_count - index);
}
m_array[index] = item;
m_count++;
m_version++;
}
public override int AddRange(Answer[] x)
{
int result = 0;
rwLock.AcquireWriterLock(timeout);
try {
result = collection.AddRange(x);
}
finally {
rwLock.ReleaseWriterLock();
}
return result;
}
/// <summary>
/// Removes the first occurrence of a specific <see cref="Answer"/> from the <c>AnswerCollection</c>.
/// </summary>
/// <param name="item">The <see cref="Answer"/> to remove from the <c>AnswerCollection</c>.</param>
/// <exception cref="ArgumentException">
/// The specified <see cref="Answer"/> was not found in the <c>AnswerCollection</c>.
/// </exception>
public virtual void Remove(Answer item)
{
int i = IndexOf(item);
if (i < 0)
throw new System.ArgumentException("Cannot remove the specified item because it was not found in the specified Collection.");
++m_version;
RemoveAt(i);
}
public override void CopyTo(Answer[] array, int start)
{
rwLock.AcquireReaderLock(timeout);
try {
collection.CopyTo(array, start);
}
finally {
rwLock.ReleaseReaderLock();
}
}
/// <summary>
/// Removes the element at the specified index of the <c>AnswerCollection</c>.
/// </summary>
/// <param name="index">The zero-based index of the element to remove.</param>
/// <exception cref="ArgumentOutOfRangeException">
/// <para><paramref name="index"/> is less than zero</para>
/// <para>-or-</para>
/// <para><paramref name="index"/> is equal to or greater than <see cref="AnswerCollection.Count"/>.</para>
/// </exception>
public virtual void RemoveAt(int index)
{
ValidateIndex(index); // throws
m_count--;
if (index < m_count) {
Array.Copy(m_array, index + 1, m_array, index, m_count - index);
}
// We can't set the deleted entry equal to null, because it might be a value type.
// Instead, we'll create an empty single-element array of the right type and copy it
// over the entry we want to erase.
Answer[] temp = new Answer[1];
Array.Copy(temp, 0, m_array, m_count, 1);
m_version++;
}
public override void DisplayAnswer(Answer answer)
{
this.state = GameState.Display;
this.output = answer.Text + " (" + answer.Votes + ")";
}
/// <summary>
/// Initializes a new instance of the <c>AnswerCollection</c> class
/// that contains elements copied from the specified <see cref="Answer"/> array.
/// </summary>
/// <param name="a">The <see cref="Answer"/> array whose elements are copied to the new list.</param>
public AnswerCollection(Answer[] a)
{
m_array = new Answer[a.Length];
AddRange(a);
}
public override int AddRange(Answer[] x)
{
throw new NotSupportedException("This is a Read Only Collection and can not be modified");
}
public override void DisplayAnswer(Answer answer)
{
this.controlForm.AddAnswer(answer.Text);
this.gameDisplay.AddAnswer(answer.Text, answer.Votes);
}
