protected void btnJudge_Click(object sender, EventArgs e)
{
//得到用户输入的答案
int userAnswer = Convert.ToInt32(txtResult.Text);
//创建一个Question类型的对象（用于作为参数传递给GetAnswer()方法）
CaculationService.Question question = new CaculationService.Question();
//将“操作数1”文本框中的数值作为question对象的“操作数1”属性
question.Operand1 = Convert.ToInt32(txtNumber1.Text);
//将“操作数2”文本框中的数值作为question对象的“操作数2”属性
question.Operand2 = Convert.ToInt32(txtNumber2.Text);
//将运算符字符串标签中的数值作为question对象的“运算符字符串”属性
question.OperatorString = lblOperator.Text;
//创建一个Web引用类型的对象
CaculationService.Caculation caculationService = new CaculationService.Caculation();
//调用Web Service的GetAnswer()方法，得到一个Answer类型的对象
CaculationService.Answer answer = caculationService.GetAnswer(question, userAnswer);
//判断answerHistory泛型是否为空
if (answerHistory == null)
{
//若为空（表示没有任何数据），则创建对象
answerHistory = new List <CaculationService.Answer>();
}
//将answer对象添加到泛型中
answerHistory.Add(answer);
//将泛型作为GridView的DataSource
gdvQuestions.DataSource = answerHistory;
//调用GridView的DataBind()方法，显示数据
gdvQuestions.DataBind();
Reset(); //清空页面
}
protected void btnJudge_Click(object sender, EventArgs e)
{
//得到用户输入的答案
int userAnswer = Convert.ToInt32(txtResult.Text);
//创建一个Question类型的对象（用于作为参数传递给GetAnswer()方法）
CaculationService.Question question = new CaculationService.Question();
//将“操作数1”文本框中的数值作为question对象的“操作数1”属性
question.Operand1 = Convert.ToInt32(txtNumber1.Text);
//将“操作数2”文本框中的数值作为question对象的“操作数2”属性
question.Operand2 = Convert.ToInt32(txtNumber2.Text);
//将运算符字符串标签中的数值作为question对象的“运算符字符串”属性
question.OperatorString = lblOperator.Text;
//创建一个Web引用类型的对象
CaculationService.Caculation caculationService = new CaculationService.Caculation();
//调用Web Service的GetAnswer()方法，得到一个Answer类型的对象
CaculationService.Answer answer = caculationService.GetAnswer(question, userAnswer);
//判断answerHistory泛型是否为空
if (answerHistory == null)
{
//若为空（表示没有任何数据），则创建对象
answerHistory = new List<CaculationService.Answer>();
}
//将answer对象添加到泛型中
answerHistory.Add(answer);
//将泛型作为GridView的DataSource
gdvQuestions.DataSource = answerHistory;
//调用GridView的DataBind()方法，显示数据
gdvQuestions.DataBind();
Reset(); //清空页面
}
protected void btnGenerate_Click(object sender, EventArgs e)
{
//创建一个Web引用类型的对象
CaculationService.Caculation caculationService = new CaculationService.Caculation();
CaculationService.Question question = caculationService.GetQuestion();
//调用Web Service的GetQuestion()方法，得到一个Question类型的对象
//将question对象的操作数1属性显示在相应文本框中
txtNumber1.Text = question.Operand1.ToString();
//将question对象的运算符字符串属性显示在相应标签中
lblOperator.Text = question.OperatorString;
//将question对象的操作数2属性显示在相应文本框中
txtNumber2.Text = question.Operand2.ToString();
}
/// <remarks/>
public void GetAnswerAsync(Question question, int userAnswer, object userState) {
if ((this.GetAnswerOperationCompleted == null)) {
this.GetAnswerOperationCompleted = new System.Threading.SendOrPostCallback(this.OnGetAnswerOperationCompleted);
}
this.InvokeAsync("GetAnswer", new object[] {
question,
userAnswer}, this.GetAnswerOperationCompleted, userState);
}
/// <remarks/>
public void GetAnswerAsync(Question question, int userAnswer) {
this.GetAnswerAsync(question, userAnswer, null);
}
public Answer GetAnswer(Question question, int userAnswer) {
object[] results = this.Invoke("GetAnswer", new object[] {
question,
userAnswer});
return ((Answer)(results[0]));
}
