private: System::Void Form1_Load(System::Object^  sender, System::EventArgs^  e) {
 String ^strPath =Application::StartupPath->Substring(0,Application::StartupPath->LastIndexOf("\\"));
    strPath += "\\helpPage.htm";
    //设置helpProvider1控件的pNamespace属性，设置帮助文件的路径
    helpProvider1->HelpNamespace = strPath;
    //设置SetShowHelp方法指定是否显示指定控件的帮助信息
    helpProvider1->SetShowHelp(this,true);
			 }