private void toolStrip_edit_Click(object sender, EventArgs e)
{
//打开编辑
if (dataGridView1.SelectedRows.Count == 1)
{
string selectrow = dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[0].Value.ToString();
Form_Edit formedit = new Form_Edit();
formedit.studentid_edit = selectrow;
formedit.ShowDialog();
if (treeView1.SelectedNode != null)
{
StudentInfo Rchose = new StudentInfo();
switch (treeView1.SelectedNode.Tag.ToString())
{
//通过调用search中现有的方法完成
case "0": dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo(); break;
case "1":
Rchose.Profession = treeView1.SelectedNode.Text;
dataGridView1.DataSource = StudentInfoBLL.GetStudentInfoList(Rchose);
break;
//使用Tag标志区别选中的标签类别，可以再次扩展，这里不做了，用Tag意义不大
}
}
else
{
initContracts();
}
}
else
{
MessageBox.Show("请选中一行后再点击编辑按钮");
}
}
private void btn_search_Click(object sender, EventArgs e)
{
//查询
if (cb_searchitem.Text == string.Empty)
{
dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo();
InitHeadTitle();
}
else
{
if (txt_searchtext.Text != string.Empty)
{
StudentInfo studentsearch = new StudentInfo();
switch (cb_searchitem.SelectedIndex)
{
case 0: studentsearch.StudentId = txt_searchtext.Text; break;
case 1: studentsearch.Name = txt_searchtext.Text; break;
}
dataGridView1.DataSource = StudentInfoBLL.GetStudentInfoList(studentsearch);
InitHeadTitle();
}
else
{
MessageBox.Show("请输入要查询的" + cb_searchitem.Text);
}
}
}
private void toolStrip_add_Click(object sender, EventArgs e)
{
//打开添加窗体
Form_Add formadd = new Form_Add();
formadd.ShowDialog();
//添加删除或编辑后仍是当前选中节点的数据
if (treeView1.SelectedNode != null)
{
StudentInfo Rchose = new StudentInfo();
switch (treeView1.SelectedNode.Tag.ToString())
{
//通过调用search中现有的方法完成
case "0": dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo(); break;
case "1":
Rchose.Profession = treeView1.SelectedNode.Text;
dataGridView1.DataSource = StudentInfoBLL.GetStudentInfoList(Rchose);
break;
//使用Tag标志区别选中的标签类别，可以再次扩展，这里不做了，用Tag意义不大
}
}
else
{
initContracts();
}
}
private void professionTreeView_AfterSelect(object sender, TreeViewEventArgs e)
{
TreeNode pnode = professionTreeView.SelectedNode;
if (pnode.Text != "专业")
{
dataGridView1.DataSource = StudentInfoBLL.GetStudentInfoListByProfession(pnode.Text);
}
else
{
dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo();
}
}
private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
{
StudentInfo student = new StudentInfo();
student.Profession = treeView1.SelectedNode.Text;
if (treeView1.SelectedNode.Text == "全部")
{
dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo();
}
else
{
dataGridView1.DataSource = StudentInfoBLL.GetStudentInfoList(student);
}
}
private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
{
StudentInfo Rchose = new StudentInfo();
switch (e.Node.Tag.ToString())
{
//通过调用search中现有的方法完成
case "0": dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo(); break;
case "1": Rchose.Profession = treeView1.SelectedNode.Text;
dataGridView1.DataSource = StudentInfoBLL.GetStudentInfoList(Rchose);
break;
//使用Tag标志区别选中的标签类别，可以再次扩展，这里不做了，用Tag意义不大
}
}
void initContracts()
{
//不存在students.xml,则先行创建
if (File.Exists(AppDomain.CurrentDomain.SetupInformation.ApplicationBase + @"/Students.xml"))
{
dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo();
}
else
{
StudentInfoBLL.CreateStudentXml();
dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo();
}
dataGridView1.Columns[0].HeaderText = "学生编号";
dataGridView1.Columns[1].HeaderText = "学生姓名";
dataGridView1.Columns[2].HeaderText = "学生性别";
dataGridView1.Columns[3].HeaderText = "学生年龄";
dataGridView1.Columns[4].HeaderText = "出生日期";
dataGridView1.Columns[5].HeaderText = "手机号码";
dataGridView1.Columns[6].HeaderText = "家庭地址";
dataGridView1.Columns[7].HeaderText = "电子邮箱";
dataGridView1.Columns[8].HeaderText = "专 业";
}
void initContracts()
{
//如果存在Students.xml，查询所有学生信息，如果不存在，则创建该文件后再查询
if (File.Exists(AppDomain.CurrentDomain.SetupInformation.ApplicationBase + @"/xml/Students.xml"))
{
dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo();
}
else
{
StudentInfoBLL.CreateStudentXml();
dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo();
}
//初始化数据表格dataGridView1的列标题
dataGridView1.Columns[0].HeaderText = "学生编号";
dataGridView1.Columns[1].HeaderText = "学生姓名";
dataGridView1.Columns[2].HeaderText = "学生性别";
dataGridView1.Columns[3].HeaderText = "学生年龄";
dataGridView1.Columns[4].HeaderText = "出生日期";
dataGridView1.Columns[5].HeaderText = "手机号码";
dataGridView1.Columns[6].HeaderText = "家庭住址";
dataGridView1.Columns[7].HeaderText = "电子邮箱";
dataGridView1.Columns[8].HeaderText = "专 业";
}
void initContracts()
{
//if "Students.xml" is esixt,Check all student's information.else create a document and check
if (File.Exists(AppDomain.CurrentDomain.SetupInformation.ApplicationBase + @"/xml/Students.xml"))
{
dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo();
}
else
{
StudentInfoBLL.CreateStudentXml();
dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo();
}
dataGridView1.Columns[0].HeaderText = "学生编号";
dataGridView1.Columns[1].HeaderText = "学生姓名";
dataGridView1.Columns[2].HeaderText = "学生性别";
dataGridView1.Columns[3].HeaderText = "学生年龄";
dataGridView1.Columns[4].HeaderText = "出生日期";
dataGridView1.Columns[5].HeaderText = "手机号码";
dataGridView1.Columns[6].HeaderText = "家庭地址";
dataGridView1.Columns[7].HeaderText = "电子邮箱";
dataGridView1.Columns[8].HeaderText = "专业学科";
updateProfessionTreeView();
}
private void toolStrip_delete_Click(object sender, EventArgs e)
{
//删除信息
if (dataGridView1.SelectedRows.Count == 1)
{
if (MessageBox.Show("确定要删除此学生信息？", "确认信息", MessageBoxButtons.YesNo, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button2) == DialogResult.Yes)
{
string selectrow = dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[0].Value.ToString();
if (StudentInfoBLL.DeleteStudentInfo(selectrow))
{
MessageBox.Show("删除学生信息成功！");
if (treeView1.SelectedNode != null)
{
StudentInfo Rchose = new StudentInfo();
switch (treeView1.SelectedNode.Tag.ToString())
{
//通过调用search中现有的方法完成
case "0": dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo(); break;
case "1":
Rchose.Profession = treeView1.SelectedNode.Text;
dataGridView1.DataSource = StudentInfoBLL.GetStudentInfoList(Rchose);
break;
//使用Tag标志区别选中的标签类别，可以再次扩展，这里不做了，用Tag意义不大
}
}
else
{
initContracts();
}
}
else
{
MessageBox.Show("删除学生信息失败，请检查是否选中学生信息！");
if (treeView1.SelectedNode != null)
{
StudentInfo Rchose = new StudentInfo();
switch (treeView1.SelectedNode.Tag.ToString())
{
//通过调用search中现有的方法完成
case "0": dataGridView1.DataSource = StudentInfoBLL.GetAllStudentInfo(); break;
case "1":
Rchose.Profession = treeView1.SelectedNode.Text;
dataGridView1.DataSource = StudentInfoBLL.GetStudentInfoList(Rchose);
break;
//使用Tag标志区别选中的标签类别，可以再次扩展，这里不做了，用Tag意义不大
}
}
else
{
initContracts();
}
}
}
else
{
MessageBox.Show("请选中一行后再点击删除按钮！");
}
}
}
