我创建了一个表格，用于跟踪在特定日期注册计算机实验室的学生人数。我的问题是当个人开始注册并且学生人数超过可用计算机数量时，我希望表单生成一条消息，无论是个人还是与该特定日期已经注册的人数相结合.
我还想让它告诉他们如果没有填满，实验室里还剩下多少个位置。
我的问题是，我想知道当太多人注册实验室时，我会添加什么代码来创建消息。我不知道从哪里开始或如何去做
现在我所做的就是跟踪注册人数。
//Create the GUI form
function doGet() {
var app = UiApp.createApplication().setTitle('DHS: Kurzweil Calendar');
//Create a panel which holds all the form elelemnts
var vertMainPanel = app.createVerticalPanel().setId('vertMainPanel');
//Create the form elelemnts
var lblTeacherName = app.createLabel('Teacher Name:');
var txtTeacherName = app.createTextBox().setName('txtTeacherName');
var lblExt = app.createLabel('Ext:');
var txtExt = app.createTextBox().setName('txtExt');
var lblDate = app.createLabel('Date:');
var boxDate = app.createDateBox().setId('boxDate').setName('boxDate');
var lbxSubject = app.createListBox().setId('lbxSubject').setName('lbxSubject');
lbxSubject.setVisibleItemCount(5);
lbxSubject.addItem('-- Select One --');
lbxSubject.addItem('Algebra I (OCS)');
lbxSubject.addItem('Algebra II');
lbxSubject.addItem('Algebra II (Honors)');
lbxSubject.addItem('Agriscience Applications');
lbxSubject.addItem('Agriscience Applications (OCS)');
lbxSubject.addItem('Anatomy and Physiology');
lbxSubject.addItem('Anatomy and Physiology (Honors)');
lbxSubject.addItem('Animal Science');
lbxSubject.addItem('American Sign Language II');
lbxSubject.addItem('Apparel I');
lbxSubject.addItem('Art History (AP)');
lbxSubject.addItem('Advanced Functions and Modeling');
lbxSubject.addItem('Automotive Computer System Diagnostics');
lbxSubject.addItem('Automotive Brakes');
lbxSubject.addItem('Automotive Service');
lbxSubject.addItem('Automotive Service (OCS)');
lbxSubject.addItem('Benchmarks');
lbxSubject.addItem('Bible History');
lbxSubject.addItem('Biology');
lbxSubject.addItem('Biology (AP)');
lbxSubject.addItem('Biology (Honors)');
lbxSubject.addItem('Biology (OCS)');
lbxSubject.addItem('Biomedical Technology');
lbxSubject.addItem('Biotechnology and Agriscience');
lbxSubject.addItem('Calculus AB (AP)');
lbxSubject.addItem('Calculus BC (AP)');
lbxSubject.addItem('Carpentry I');
lbxSubject.addItem('Carpentry I (OCS)');
lbxSubject.addItem('Carpentry III');
lbxSubject.addItem('Chemistry');
lbxSubject.addItem('Chemistry (AP)');
lbxSubject.addItem('Chemistry (Honors)');
lbxSubject.addItem('Choral Arts (Beginning)');
lbxSubject.addItem('Civics and Economics');
lbxSubject.addItem('Civics and Economics (Honors)');
lbxSubject.addItem('Computer Programming I');
lbxSubject.addItem('Computer Science (AP)');
lbxSubject.addItem('Computer Technology');
lbxSubject.addItem('Concert Band II (Beginning)');
lbxSubject.addItem('Concert Band II (Proficient)');
lbxSubject.addItem('Core and Sustainable Construction');
lbxSubject.addItem('Core and Sustainable Construction (OCS)');
lbxSubject.addItem('Digital Media I');
lbxSubject.addItem('Digitial Media I (OCS)');
lbxSubject.addItem('Digital Media II');
lbxSubject.addItem('Discrete Mathematics');
lbxSubject.addItem('Drafting I');
lbxSubject.addItem('Drafting Architecture II (Honors)');
lbxSubject.addItem('Drafting Architecture III (Honors)');
lbxSubject.addItem('Earth and Environmental Science');
lbxSubject.addItem('Earth and Environmental Sceince (AP)');
lbxSubject.addItem('Earth and Environmental Science (Honors)');
lbxSubject.addItem('Early Childhood Ed I');
lbxSubject.addItem('eCommerce I (Honors)');
lbxSubject.addItem('English I');
lbxSubject.addItem('English I (Honors)');
lbxSubject.addItem('English II');
lbxSubject.addItem('English II (Honors)');
lbxSubject.addItem('English II (OCS)');
lbxSubject.addItem('English III');
lbxSubject.addItem('English III (Honors)');
lbxSubject.addItem('English III (OCS)');
lbxSubject.addItem('English IV');
lbxSubject.addItem('English IV (Honors)');
lbxSubject.addItem('English IV (OCS)');
lbxSubject.addItem('English Lang and Comp (AP)');
lbxSubject.addItem('English Language Arts II');
lbxSubject.addItem('English Language Arts III');
lbxSubject.addItem('Engish Literature (AP)');
lbxSubject.addItem('European History (AP)');
lbxSubject.addItem('Fashion Merchandising');
lbxSubject.addItem('Financial Management (OCS)');
lbxSubject.addItem('Foods I');
lbxSubject.addItem('Foods I (OCS)');
lbxSubject.addItem('Foods II - Enterprise');
lbxSubject.addItem('Foods II - Advanced (OCS)');
lbxSubject.addItem('French I');
lbxSubject.addItem('French II');
lbxSubject.addItem('French III (Honors)');
lbxSubject.addItem('Functional Finances');
lbxSubject.addItem('Geometry');
lbxSubject.addItem('Geometry (Honors)');
lbxSubject.addItem('German I');
lbxSubject.addItem('German II');
lbxSubject.addItem('German III (Honors)');
lbxSubject.addItem('Health and Physical Education');
lbxSubject.addItem('Health Sciences (Advanced Studies)');
lbxSubject.addItem('Health Team Relations');
lbxSubject.addItem('Human Geography (AP)');
lbxSubject.addItem('Holocaust and Peace Studies');
lbxSubject.addItem('Horticulture I');
lbxSubject.addItem('Horticulture I (OCS)');
lbxSubject.addItem('Horticulture II');
lbxSubject.addItem('Horticulture II (OCS)');
lbxSubject.addItem('Integrated Math I');
lbxSubject.addItem('Interior Design I');
lbxSubject.addItem('Introduction to Math');
lbxSubject.addItem('Japanese I');
lbxSubject.addItem('JROTC I');
lbxSubject.addItem('JROTC II');
lbxSubject.addItem('JROTC III');
lbxSubject.addItem('JROTC IV');
lbxSubject.addItem('Latin I');
lbxSubject.addItem('Latim II');
lbxSubject.addItem('Latin III (Honors)');
lbxSubject.addItem('Leadership Development');
lbxSubject.addItem('Marketing Management');
lbxSubject.addItem('Masonry I');
lbxSubject.addItem('Masonry I (OCS)');
lbxSubject.addItem('Masonry III');
lbxSubject.addItem('Microsoft Excel and Access');
lbxSubject.addItem('Microsoft Word PowerPoint and Publisher');
lbxSubject.addItem('Multimedia and Webpage Design');
lbxSubject.addItem('Music Business and Recording (Beginning)');
lbxSubject.addItem('Occupational Preparations I');
lbxSubject.addItem('Occupational Preparations II');
lbxSubject.addItem('Occupational Preparations III');
lbxSubject.addItem('Occupational Preparations IV');
lbxSubject.addItem('Parent and Child Development');
lbxSubject.addItem('Parent and Child Development (OCS)');
lbxSubject.addItem('Personal Finance');
lbxSubject.addItem('Personal Finance (OCS)');
lbxSubject.addItem('Physical Science');
lbxSubject.addItem('Physics (Honors)');
lbxSubject.addItem('Pre-Calculus (Honors)');
lbxSubject.addItem('Professional Management and Leadership I');
lbxSubject.addItem('Professional Management and Leadership II');
lbxSubject.addItem('Psychology');
lbxSubject.addItem('Physcology (AP)');
lbxSubject.addItem('Psychology (Honors)');
lbxSubject.addItem('SAT Preparation');
lbxSubject.addItem('Science and Technical Visualization I');
lbxSubject.addItem('Science and Technical Visualization II');
lbxSubject.addItem('Social Studies (OCS)');
lbxSubject.addItem('Spanish I');
lbxSubject.addItem('Spanish II');
lbxSubject.addItem('Spanish III (Honors)');
lbxSubject.addItem('Spanish IV (Honors)');
lbxSubject.addItem('Special Topics of Mathematics');
lbxSubject.addItem('Symphonic Band II (Beginning)');
lbxSubject.addItem('Symphonic Band II (Intermediate)');
lbxSubject.addItem('Symphonic Band II (Proficient)');
lbxSubject.addItem('Technology Engineering and Design');
lbxSubject.addItem('Theatre Arts (Beginning)');
lbxSubject.addItem('Theatre Arts (Intermediate)');
lbxSubject.addItem('US History');
lbxSubject.addItem('US History (AP)');
lbxSubject.addItem('US History (Honors)');
lbxSubject.addItem('Visual Arts (Beginning)');
lbxSubject.addItem('Visual Arts (Intermediate)');
lbxSubject.addItem('Visual Arts (Proficient)');
lbxSubject.addItem('Visual Arts (Advanced)');
lbxSubject.addItem('Visual Arts Specialization in Ceramics (Advanced)');
lbxSubject.addItem('Vocal Ensemble (Intermediate)');
lbxSubject.addItem('Vocal Ensemble (Proficient)');
lbxSubject.addItem('Wind Ensemble II (Intermediate)');
lbxSubject.addItem('Wind Ensemble II (Proficient)');
lbxSubject.addItem('Wind Ensemble II (Advanced)');
lbxSubject.addItem('World Geography');
lbxSubject.addItem('World History');
lbxSubject.addItem('World History');
lbxSubject.addItem('World History (Honors)');
var lbxPeriod = app.createListBox().setId('lbxPeriod').setName('lbxPeriod');
lbxSubject.setVisibleItemCount(1);
lbxPeriod.addItem('-- Select One --');
lbxPeriod.addItem('1st Period');
lbxPeriod.addItem('2nd Period');
lbxPeriod.addItem('3rd Period');
lbxPeriod.addItem('4th Period');
var lblStudentNum = app.createLabel('Number of Students:');
var txtStudentNum = app.createTextBox().setName('txtStudentNum');
var radSource1 = app.createRadioButton('group1', 'Hard-Copy').setFormValue('Hard-Copy').setName('Hard-Copy').setId('Hard-Copy');
var radSource2 = app.createRadioButton('group1', 'Electronic-Copy').setFormValue('Electronic-Copy').setName('Electronic-Copy').setId('Electronic-Copy');
var radSource3 = app.createRadioButton('group2', 'Teacher-Made Exam').setFormValue('Teacher-Made Exam').setName('Teacher-Made').setId('Teacher-Made');
var radSource4 = app.createRadioButton('group2', 'Elements Exam').setFormValue('Elements Exam').setName('Elements').setId('Elements');
var radSource5 = app.createRadioButton('group2', 'Quia Exam').setFormValue('Quia Exam').setName('Quia').setId('Quia');
var btnCreate = app.createButton('Create Event');
//Create handler which will execute 'createEvents(e)' on clicking the button
var evtHandler = app.createServerClickHandler('createEvents');
evtHandler.addCallbackElement(vertMainPanel);
//Add this handler to the button
btnCreate.addClickHandler(evtHandler);
//Add all the elemnts to the panel
vertMainPanel.add(lblTeacherName)
.add(txtTeacherName)
.add(lblExt)
.add(txtExt)
.add(lblDate)
.add(boxDate)
.add(lbxSubject)
.add(lbxPeriod)
.add(lblStudentNum)
.add(txtStudentNum)
.add(radSource1)
.add(radSource2)
.add(radSource3)
.add(radSource4)
.add(radSource5)
.add(btnCreate);
//Add this panel to the application
app.add(vertMainPanel);
//Return the application
return app;
}
function createEvents(e){
//Get the active application
var app = UiApp.getActiveApplication();
try{
//Get the entries
var ssTeacher = e.parameter.txtTeacherName;
var ssExt = e.parameter.txtExt;
var ssSubject = e.parameter.lbxSubject;
var ssPeriod = e.parameter.lbxPeriod;
var ssStudentNum = e.parameter.txtStudentNum;
var ssSource = "";
var ssType = "";
var eventDate = e.parameter.boxDate;
var eventCalSubject = ssPeriod + ": " + ssTeacher + " (" + ssStudentNum + ")";
var eventCalDetails = "Extension: " + ssExt + "\n" +
"Subject: " + ssSubject + "\n\n" +
"Source: " + ssSource + "\n" +
"Type: " + ssType + "\n";
//Get the calendar
var cal = CalendarApp.getCalendarById('davie.k12.nc.us_d2mv2eb8aspuant1vb5j6r3sis@group.calendar.google.com');//Change the calendar id
//Create the events
cal.createAllDayEvent(eventCalSubject, Utilities.formatDate(eventDate, 'EST', 'MM/DD/YYYY'), {description:eventCalDetails});
//Log the entries in a spreadsheet
var ss = SpreadsheetApp.openById('0Aur3owCpuUY-dGJIOGZ1LXhqT2FNMGVXSGNJazFnUmc#gid=0');//Change the spreadhseet key to yours
var sheet = ss.getSheets()[0];
sheet.getRange(sheet.getLastRow()+1, 1, 1, 10).setValues([[new Date(), eventDate, ssTeacher, ssExt, ssSubject, ssPeriod, ssSource, ssType, ssStudentNum, 'Event created']]);
//Show the confirmation message
app.add(app.createLabel('Kurzweil Calendar Event created successfully...'));
//Make the form panel invisible
app.getElementById('vertMainPanel').setVisible(false);
return app;
}
//If an error occurs, show it on the panel
catch(e){
app.add(app.createLabel('Error occured: '+ e));
return app;
}
}