private void btnBegin_Click(object sender, EventArgs e)
{
//如果没有选择科目点击开始答题，系统会提示“请选择科目”，才能答题
if (cboSubjects.SelectedIndex == -1)
{
MessageBox.Show("请选择科目！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
cboSubjects.Focus();
}
else
{
// 获得选中科目的Id
subjectId = GetSubjectId();
string str = LoginForm.str;
string sql = string.Format("select * from StudentScore where LoginId='" + str + "' and SubjectId=" + subjectId + " ");
SqlDataReader dr = null;
dr = DBHelper.getReader(sql);
if (!dr.Read())
{ // 剩余时间为20分钟
QuizHelper.remainSeconds = 1200;
AnswerQuestionForm answerQuestion = new AnswerQuestionForm(subjectId);
answerQuestion.MdiParent = this.MdiParent;
answerQuestion.Show();
this.Close();
}
else
{
MessageBox.Show("不能重复选择已答完科目，请重新选择！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
cboSubjects.Focus();
}
}
}
// 转到相应的题目
private void btnQuestion_Click(object sender, EventArgs e)
{
int questionIndex = Convert.ToInt32(((Button)sender).Tag);
if (questionIndex < 15)
{
AnswerQuestionForm answerQuestionForm = new AnswerQuestionForm();
answerQuestionForm.questionIndex = questionIndex;
answerQuestionForm.MdiParent = this.MdiParent;
answerQuestionForm.Show();
}
else if (14 < questionIndex && questionIndex < 19)
{
fillblank fillblank = new fillblank();
fillblank.questionIndex21 = questionIndex;
fillblank.MdiParent = this.MdiParent;
fillblank.Show();
}
else
{
ShortAnswer shortanswer = new ShortAnswer();
shortanswer.questionIndex31 = questionIndex;
shortanswer.MdiParent = this.MdiParent;
shortanswer.Show();
}
this.Close();
}
// 单击“开始答题”按钮
private void btnBegin_Click(object sender, EventArgs e)
{
if (cboSubjects.SelectedIndex == -1)
{
MessageBox.Show("请选择科目！", "上海电力学院在线考试系统", MessageBoxButtons.OK, MessageBoxIcon.Information);
cboSubjects.Focus();
}
else if (!iscantest())
{
MessageBox.Show("该科目已经考试过，请重新选择科目！", "上海电力学院在线考试系统", MessageBoxButtons.OK, MessageBoxIcon.Information);
QuizHelper.subjectId = 0;
cboSubjects.Focus();
}
else
{
int subjectId = QuizHelper.subjectId;
// 该科目问题总数
int allQuestionCount = GetQuestionCount(subjectId);
int allQuestionCount2 = GetQuestionCount2(subjectId);
int allQuestionCount3 = GetQuestionCount3(subjectId);
// 指定所有问题数组的长度
QuizHelper.allQuestionIds = new int[allQuestionCount];
QuizHelper.allQuestionIds2 = new int[allQuestionCount2];
QuizHelper.allQuestionIds3 = new int[allQuestionCount3];
// 指定是否选择标记的长度
QuizHelper.selectedStates = new bool[allQuestionCount];
QuizHelper.selectedStates2 = new bool[allQuestionCount2];
QuizHelper.selectedStates3 = new bool[allQuestionCount3];
// 找出该科目的所有的问题
SetAllQuestionIds(subjectId);
SetAllQuestionIds2(subjectId);
SetAllQuestionIds3(subjectId);
// 抽题
SetSelectedQuestionIds();
SetSelectedQuestionIds2();
SetSelectedQuestionIds3();
// 取出标准答案
SetRightAnswers();
SetRightAnswers2();
// 剩余时间为20分钟
QuizHelper.remainSeconds = 1200;
// 将学生答案数组初始化
for (int i = 0; i < QuizHelper.studentAnswers.Length; i++)
{
QuizHelper.studentAnswers[i] = "未回答";
}
// 打开答题窗体
AnswerQuestionForm answerQuestion = new AnswerQuestionForm();
answerQuestion.MdiParent = this.MdiParent;
answerQuestion.Show();
this.Close();
}
}
