//加载树
private void LoadTreeNodes()
{
T_CollegeDAL collegeDal = new T_CollegeDAL();
T_ClassDAL classDal = new T_ClassDAL();
var collegeRes = collegeDal.LoadCollege();
TreeNode[] nodes = new TreeNode[collegeRes.Count];
for (int i = 0; i < collegeRes.Count; i++)
{
TreeNode node = new TreeNode();
node.Text = collegeRes[i].CollegeName;
node.Tag = collegeRes[i];
nodes[i] = node;
var classRes = classDal.LoadClass(collegeRes[i].CollegeID);
if (classRes == null)
{
continue;
}
foreach (var item in classRes)
{
TreeNode node1 = new TreeNode(item.ClassName);
node1.Tag = item;
nodes[i].Nodes.Add(node1);
}
}
trvEx1.Nodes.AddRange(nodes);
}
private void LoadClass()
{
T_ClassDAL dal = new T_ClassDAL();
List <T_Class> @class = dal.LoadClass();
comClass.DataSource = @class;
comClass.SelectedIndexChanged += ComClass_SelectedIndexChanged;
ComClass_SelectedIndexChanged(comClass, null);
}
private void FrmInsertedClassSetUpCourse_Load(object sender, EventArgs e)
{
//加载学院
T_CollegeDAL dal = new T_CollegeDAL();
comCollege.DataSource = dal.LoadCollege();
//事件触发加载班级
comCollege.SelectedIndexChanged += ComCollege_SelectedIndexChanged;
comCollege.SelectedIndex = 0;
T_ClassDAL classDal = new T_ClassDAL();
comClass.DataSource = classDal.LoadClass();
comCourse.DataSource = new T_CourseDAL().ExecuteListCourseName();
comTeach.DataSource = new T_TeachDAL().GetTeches();
}
private void trvEx1_AfterSelect(object sender, TreeViewEventArgs e)
{
var college = e.Node.Tag as T_College;
if (college == null)
{
return;
}
T_ClassDAL classDAL = new T_ClassDAL();
int cur = 1;
try
{
var res = classDAL.LoadClass(college.CollegeID);
dataGridView1.DataSource = res;
cur = 1;
collegeID = college.CollegeID;
}
catch
{
cur = curIndex;
}
curIndex = cur;
}