private void AddItemIntoTreeView(ObservableCollection <MenuTreeItem> root, MenuTreeItem child)
{
trvMain.Dispatcher.Invoke(new Action(() =>
{
root.Add(child);
}));
}
private void btnLoadData_Click(object sender, RoutedEventArgs e)
{
Thread t = new Thread(
() =>
{
var url = "Learn";
var html = GetHtml(url);
var stringRegex = @"(?<=<div class=""col-md-6 col-xl-3"">).*?(?=<div class=""col-md-6 col-xl-3"">)";
var coursesHtml = Regex.Matches(html, stringRegex, RegexOptions.Singleline);
foreach (var item in coursesHtml)
{
string getCourseNameRegex = @"(?<=h4 class=""font-size-default font-w600 mb-10 text-overflow-dot"" title="")(.*?)(?="">)";
string getCourseLinkRegex = @"(?<=data-href=""/).*?(?="" data-action)";
string courseName = Regex.Match(item.ToString(), getCourseNameRegex).ToString();
string courseLink = Regex.Match(item.ToString(), getCourseLinkRegex).ToString();
MenuTreeItem menu = new MenuTreeItem();
menu.Name = courseName;
menu.URL = courseLink;
AddItemIntoTreeView(TreeItems, menu);
string courseID = courseLink.Substring(courseLink.LastIndexOf('-') + 1);
string htmlCourse = GetHtml("https://www.howkteam.vn/learn/lecturelist?courseId=" + courseID);
string lectureRegex = @"(?<=<span class=""font-w600"">).*?(?=</a>)";
string lectureLinkRegex = @"(?<=href=""/).*?(?="")";
var lecturesHtml = Regex.Matches(htmlCourse, lectureRegex, RegexOptions.Singleline);
var lectureLinks = Regex.Matches(htmlCourse, lectureLinkRegex, RegexOptions.Singleline);
for (int i = 0; i < lecturesHtml.Count; i++)
{
var lectureName = lecturesHtml[i].ToString().Replace(@"</span>
", "");
var lectureLink = lectureLinks[i].ToString().Trim();
var lecture = new MenuTreeItem();
lecture.Name = lectureName;
lecture.URL = lectureLink;
AddItemIntoTreeView(menu.Items, lecture);
}
}
}
);
t.Start();
}