//添加或修改事件
protected void imgBtnSave_Click(object sender, ImageClickEventArgs e)
{
if (Page.IsValid)
{
SingleProblem singleproblem = new SingleProblem(); //创建单选题对象
singleproblem.CourseID = int.Parse(ddlCourse.SelectedValue);//为单选题对象各属性赋值
//程军添加，单选题题目不能超过1000个字符，自动截取前1000个字符.2010-4-26;
if (txtTitle.Text.Length > 1000)
{
this.Label1.Visible = true;
this.Label1.Text = "题干不能超过1000字符，自动截取前1000字符";
//程军修改，单选题自动截取前1000个字符。 2010-5-5
txtTitle.Text = txtTitle.Text.Substring(0, 1000);
//程军修改，单选题自动截取前1000个字符。 2010-5-5
singleproblem.Title = txtTitle.Text.Substring(0, 1000);
}
else
{
singleproblem.Title = txtTitle.Text;
}
if (txtAnswerA.Text.Length > 500)
{
this.Label2.Visible = true;
this.Label2.Text = "答案不能超过500字符，自动截取前500字符";
//程军修改，单选题答案自动截取前500字符。2010-5-5
txtAnswerA.Text = txtAnswerA.Text.Substring(0, 500);
//程军修改，单选题答案自动截取前500字符。2010-5-5
singleproblem.AnswerA = txtAnswerA.Text.Substring(0, 500);
}
else
{
singleproblem.AnswerA = txtAnswerA.Text;
}
if (txtAnswerB.Text.Length > 500)
{
this.Label3.Visible = true;
this.Label3.Text = "答案不能超过500字符，自动截取前500字符";
//程军修改，单选题答案自动截取前500字符。2010-5-5
txtAnswerB.Text = txtAnswerB.Text.Substring(0, 500);
//程军修改，单选题答案自动截取前500字符。2010-5-5
singleproblem.AnswerB = txtAnswerB.Text.Substring(0, 500);
}
else
{
singleproblem.AnswerB = txtAnswerB.Text;
}
if (txtAnswerC.Text.Length > 500)
{
this.Label4.Visible = true;
this.Label4.Text = "答案不能超过500字符，自动截取前500字符";
//程军修改，单选题答案自动截取前500字符。2010-5-5
txtAnswerC.Text = txtAnswerC.Text.Substring(0, 500);
//程军修改，单选题答案自动截取前500字符。2010-5-5
singleproblem.AnswerC = txtAnswerC.Text.Substring(0, 500);
}
else
{
singleproblem.AnswerC = txtAnswerC.Text;
}
if (txtAnswerD.Text.Length > 500)
{
this.Label5.Visible = true;
this.Label5.Text = "答案不能超过500字符，自动截取前500字符";
//程军修改，单选题答案自动截取前500字符。2010-5-5
txtAnswerD.Text = txtAnswerD.Text.Substring(0, 500);
//程军修改，单选题答案自动截取前500字符。2010-5-5
singleproblem.AnswerD = txtAnswerD.Text.Substring(0, 500);
}
else
{
singleproblem.AnswerD = txtAnswerD.Text;
}
//程军添加，单选题题目不能超过1000个字符，自动截取前1000个字符.2010-4-26;
//胡媛媛添加，判断备选答案是否有相同，2010-4-26
if (txtAnswerA.Text == txtAnswerB.Text || txtAnswerA.Text == txtAnswerC.Text || txtAnswerA.Text == txtAnswerD.Text)
{
lblMessage.Text = "不能有相同的备选答案！";
return;
}
else if (txtAnswerB.Text == txtAnswerC.Text || txtAnswerB.Text == txtAnswerD.Text)
{
lblMessage.Text = "不能有相同的备选答案！";
return;
}
else if (txtAnswerC.Text != "" && txtAnswerD.Text != "" && txtAnswerC.Text == txtAnswerD.Text)
{
lblMessage.Text = "不能有相同的备选答案！";
return;
}
//胡媛媛添加，判断备选答案是否有相同，2010-4-26
//singleproblem.Title = txtTitle.Text;
//singleproblem.AnswerA = txtAnswerA.Text;
//singleproblem.AnswerB = txtAnswerB.Text;
//singleproblem.AnswerC = txtAnswerC.Text;
//singleproblem.AnswerD = txtAnswerD.Text;
//程军修改，单选题维护，每改动一次标准答案，A选项所在的位置都会被替换为当前最近最新的那个选项。2010-4-26
//singleproblem.Answer = ddlAnswer.SelectedItem.Text;
if (ddlAnswer.Items.FindByValue("A").Selected)
{
singleproblem.Answer = "A";
}
if(ddlAnswer.Items.FindByValue("B").Selected)
{
singleproblem.Answer = "B";
}
//start:胡媛媛修改，答案CD没有时，不能选择该答案
if (ddlAnswer.Items.FindByValue("C").Selected)
{
if (txtAnswerC.Text != "")
{
singleproblem.Answer = "C";
}
else
{
lblMessage.Text = "没有答案C！";
return;
}
}
if (ddlAnswer.Items.FindByValue("D").Selected)
{
if (txtAnswerD.Text != "")
{
singleproblem.Answer = "D";
}
else
{
lblMessage.Text = "没有答案D！";
return;
}
}
//end:胡媛媛修改，答案CD没有时，不能选择该答案
//程军修改，单选题维护，每改动一次标准答案，A选项所在的位置都会被替换为当前最近最新的那个选项。2010-4-26
if (Request["ID"] != null) //如果是修改题目信息
{
singleproblem.ID = int.Parse(Request["ID"].ToString()); //取出试题主键
if (singleproblem.UpdateByProc(int.Parse(Request["ID"].ToString()), int.Parse(ddlCourse.SelectedValue)))//调用修改试题方法修改试题
{
lblMessage.Text = "成功修改该单选题！";
}
else
{
lblMessage.Text = "修改该单选题失败！";
}
}
else //如果是添加试题
{
if (singleproblem.InsertByProc(int.Parse(ddlCourse.SelectedValue))) //调用添加试题方法添加试题
{
lblMessage.Text = "成功添加该单选题！";
}
else
{
lblMessage.Text = "添加该单选题失败！";
}
}
}
}
