protected void GridViewBind()
{
JudgeProblem judgeproblem = new JudgeProblem(); //创建判断题对象
DataSet ds = judgeproblem.QueryJudgeProblem(int.Parse(ddlCourse.SelectedValue));//根据试卷科目查询判断题信息
GridView1.DataSource = ds.Tables[0].DefaultView; //为GridView控件指名数据源
GridView1.DataBind(); //绑定数据
}
//显示选择科目的判断题
protected void ddlCourse_SelectedIndexChanged(object sender, EventArgs e)
{
JudgeProblem judgeproblem = new JudgeProblem(); //创建单选题对象
DataSet ds = judgeproblem.QueryJudgeProblem(int.Parse(ddlCourse.SelectedValue));//根据试卷科目查询单选题信息
GridView1.DataSource = ds.Tables[0].DefaultView; //为GridView控件指名数据源
GridView1.DataBind(); //绑定数据
}
//删除试题事件
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
JudgeProblem judgeproblem = new JudgeProblem(); //创建判断题对象
int ID = int.Parse(GridView1.DataKeys[e.RowIndex].Values[0].ToString()); //取出要删除记录的主键值
if (judgeproblem.DeleteByProc(ID))
{
Page.RegisterStartupScript("", "<script language=javascript>alert('成功删除试题！')</script>");
}
else
{
Page.RegisterStartupScript("", "<script language=javascript>alert('删除试题失败！')</script>");
}
GridViewBind();//重新绑定数据
GridView1.EditIndex = -1;
}
//初始化数据
protected void InitData()
{
int judgeProblemID = int.Parse(Request["ID"].ToString()); //取出传递过来的试题编号
JudgeProblem judgeproblem = new JudgeProblem(); //创建判断题对象
if (judgeproblem.LoadData(judgeProblemID)) //如果取出题目信息，分别放在相应控件显示
{
ddlCourse.SelectedValue = judgeproblem.CourseID.ToString();
ddlDiff.SelectedValue = judgeproblem.DiffID.ToString();
txtTitle.Text = judgeproblem.Title;
rblAnswer.SelectedValue = judgeproblem.Answer.ToString().ToLower(); //注意小写化，数据库保存的True，False，首字母大写，会导致不匹配
}
else //查询出错，给出提示
{
lblMessage.Text = "加载数据出错！";
}
}
//添加或修改事件
protected void imgBtnSave_Click(object sender, ImageClickEventArgs e)
{
if (Page.IsValid)
{
JudgeProblem judgeproblem = new JudgeProblem(); //创建判断题对象
judgeproblem.CourseID = int.Parse(ddlCourse.SelectedValue);//为判断题对象各属性赋值
judgeproblem.DiffID = int.Parse(ddlDiff.SelectedValue);//为填空题对象各属性赋值
judgeproblem.Title = txtTitle.Text;
judgeproblem.Answer = bool.Parse(rblAnswer.SelectedValue);
if (Request["ID"] != null) //如果是修改题目信息
{
judgeproblem.ID = int.Parse(Request["ID"].ToString()); //取出试题主键
if (judgeproblem.UpdateByProc(int.Parse(Request["ID"].ToString())))//调用修改试题方法修改试题
{
lblMessage.Text = "成功修改该判断题！";
txtTitle.Text = "";
rblAnswer.SelectedValue = null;
}
else
{
lblMessage.Text = "修改该判断题失败！";
}
}
else //如果是添加试题
{
if (judgeproblem.InsertByProc()) //调用添加试题方法添加试题
{
lblMessage.Text = "成功添加该判断题！";
txtTitle.Text = "";
rblAnswer.SelectedValue = null;
}
else
{
lblMessage.Text = "添加该判断题失败！";
}
}
}
}
protected void txtTitle_TextChanged(object sender, EventArgs e)
{
JudgeProblem jp = new JudgeProblem();
if (jp.isReduplicated(txtTitle.Text.Trim()) == true)
{
Page.RegisterStartupScript("", "<script>alert('改题已经存在！');</script>");
txtTitle.Text = "";
}
}
//删除多条记录
protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
{
JudgeProblem judge = new JudgeProblem();//创建JudgeProblem对象
foreach (GridViewRow dr in GridView1.Rows)//对GridView中的每一行进行判断
{
if (((CheckBox)dr.FindControl("xuanze")).Checked)//如果选择了进行删除
{
int ID = int.Parse(((Label)dr.FindControl("Label1")).Text);
judge.ID = ID;
judge.DeleteByProc(ID);
}
}
}