private void QuesItem_SelectionChanged(object sender, SelectionChangedEventArgs e) //显示问题详情与回答
{
if (QuesItem.SelectedIndex < 0)
{
return;
}
CurrentQuesIndex = QuesItem.SelectedIndex;
CurrentQuestion = QuestionList[QuesItem.SelectedIndex];
this.ques_info.DataContext = QuestionList[QuesItem.SelectedIndex];
this.DisplayAnswers = new List <DisplayAnswer>();
foreach (Answer answer in QuestionList[QuesItem.SelectedIndex].Answers)
{
DisplayAnswer displayAnswer = new DisplayAnswer();
displayAnswer.convert(answer);
if (QuestionList[QuesItem.SelectedIndex].UserId == User.UserId && QuestionList[QuesItem.SelectedIndex].Solved == false)
{
displayAnswer.ShowAdoptBtn = true;
}
else
{
displayAnswer.ShowAdoptBtn = false;
}
if (answer.UserId == User.UserId)
{
displayAnswer.IsMyAnswer = true;
}
else
{
displayAnswer.IsMyAnswer = false;
}
this.DisplayAnswers.Add(displayAnswer);
}
this.AnsItem.ItemsSource = this.DisplayAnswers;
}
private void Answer_Click(object sender, RoutedEventArgs e) //回答
{
if (CurrentQuestion == null)
{
return;
}
else if (User.UserId == null)
{
tipWindow warning = new tipWindow("请先登录");
warning.ShowDialog();
return;
}
else if (CurrentQuestion.UserId == User.UserId)
{
tipWindow warning = new tipWindow("不能回答自己的提问");
warning.ShowDialog();
return;
}
else if (AnswerContent.Text == null || AnswerContent.Text == "")
{
tipWindow warning = new tipWindow("回答不能为空");
warning.ShowDialog();
return;
}
else if (DisplayAnswers.Count >= 15)
{
tipWindow warning = new tipWindow("回答已满");
warning.ShowDialog();
return;
}
bool success = User.Answer(AnswerContent.Text, CurrentQuestion.QuestionId);
if (success)
{
Answer newAnswer = new Answer(AnswerContent.Text, DateTime.Now, User.UserId, false, -1, 0);
QuestionList[CurrentQuesIndex].Answers.Add(newAnswer);
DisplayAnswer disp = new DisplayAnswer();
disp.convert(newAnswer);
disp.ShowAdoptBtn = false;
disp.IsMyAnswer = true;
this.DisplayAnswers.Add(disp);
AnswerContent.Text = "";
this.AnsItem.ItemsSource = null;
this.AnsItem.ItemsSource = this.DisplayAnswers;
}
else
{
tipWindow warning = new tipWindow("未知错误");
warning.ShowDialog();
return;
}
}
