void BinderColleges()
{
islock = true;
DataTable colleges = TreeViewBLL.GetCollegesBLL();
this.cmbBoxCollege.DataSource = colleges;
this.cmbBoxCollege.DisplayMember = "College_Name";
this.cmbBoxCollege.ValueMember = "College_ID";
islock = false;
}
void bindTreeView()
{
try
{
DataTable colleges = TreeViewBLL.GetCollegesBLL();
tvColleges.Nodes.Clear();
foreach (DataRow row in colleges.Rows)
{
TreeNode tn = new TreeNode(row["College_Name"].ToString());
tn.Name = row["College_ID"].ToString();
tn.Tag = "colleges";
tvColleges.Nodes.Add(tn);
DataTable speciality = TreeViewBLL.GetSpecBLL(row["College_ID"].ToString());
foreach (DataRow specrow in speciality.Rows)
{
TreeNode spec = new TreeNode(specrow["Speciality_Name"].ToString());
spec.Name = specrow["Speciality_ID"].ToString();
spec.Tag = "Speciality";
tn.Nodes.Add(spec);
DataTable classes = TreeViewBLL.GetClassesBLL(specrow["Speciality_ID"].ToString());
foreach (DataRow classrow in classes.Rows)
{
TreeNode classe = new TreeNode(classrow["Classes_Name"].ToString());
classe.Name = classrow["Classes_ID"].ToString();
classe.Tag = "Classes";
spec.Nodes.Add(classe);
}
}
}
}
catch (Exception)
{
MessageBox.Show("异常！");
}
}