Javascript 谷歌硬盘表单数据验证

我正在开发一个谷歌驱动器表单，它将验证输入并在提交时发送电子邮件。问题是将处理程序附加到Google创建的表单控件。有些人创建控件并将其添加到UiApp实例中，并在附加处理程序后从函数返回该对象。我曾尝试在FormOpen上调用这样的函数，但它不起作用，但我能够在提交时调用这样的函数

function sendFormByEmail(e) 
{ 
  var email = "some@email.com"; 
  var subject = "Form Results"; 
  var message = ""; for(var field in e.namedValues) 
  { 
    message += field + ' :: ' + e.namedValues[field].toString() + "\n\n";
  } 
  MailApp.sendEmail(email, subject, message); 

}

但是，我想进行客户端和服务器端验证。我的脑海中浮现出这样的想法：我只想看看html对控件有什么样的属性，也许我可以通过这种方式找到控件，但我不知道谷歌在任何时候都不会为此更改id、类或名称。下面是我上次尝试使用并返回UiApp实例的代码，但我更喜欢抓住控件并按自己的方式处理它们

function doGet(){
  //create app
  var app = UiApp.createApplication();
  //controls
  var txtbAccountNumber = app.createTextBox().setId('tbAccountNumber').setName('tbnAccountNumber');
  var txtbOwnerEmail = app.createTextBox().setId('tbOwnerEmail').setName('tbnOwnerEmail');
  var txtbAccountAdjustment = app.createTextBox().setId('tbAccountAdjustment').setName('tbnAccountAdjustment');
  var btnSubmit = app.createButton("Submit").setEnabled(false);
  var lblEmailFailed = app.createLabel("The email was not valid");
  var lblAccountNumber = app.createLabel("The account number was not valid");
  var lblAccountAdjustment = app.createLabel("The account adjustment was not valid");
  //handler for submit click
  var handler = app.createServerHandler("validateInput")
  .validateEmail(txtbOwnerEmail)
  .validateNumber(txtbAccountNumber)
  .validateNumber(txtbAccountAdjustment)
  .addCallbackElement(txtbAccountNumber)
  .addCallbackElement(txtbOwnerEmail)
  .addCallbackElement(txtbAccountAdjustment);

  //callback control handlers
  var validEmail = app.createClientHandler()
  .validateEmail(txtbOwnerEmail)
  .forTargets(txtbOwnerEmail)
  .setStyleAttribute("color","black")
  .forTargets(btnSubmit)
  .setEnabled(true)
  .forTargets(lblEmailFailed)
  .setVisible(false);

  var validAccountNumber = app.createClientHandler()
  .validateNumber(txtbAccountNumber)
  .forTargets(txtbAccountNumber)
  .setStyleAttribute("color","black")
  .forTargets(btnSubmit)
  .setEnabled(true)
  .forTargets(lblAccountNumber)
  .setVisible(false);

  var validAccountAdjustment = app.createClientHandler()
  .validateNumber(txtbAccountAdjustment)
  .forTargets(txtbAccountAdjustment)
  .setStyleAttribute("color","black")
  .forTargets(btnSubmit)
  .setEnabled(true)
  .forTargets(lblAccountAdjustment)
  .setVisible(false);

  var invalidEmail = app.createClientHandler()
  .validateEmail(txtbOwnerEmail)
  .forTargets(txtbOwnerEmail)
  .setStyleAttribute("color","red")
  .forTargets(btnSubmit)
  .setEnabled(false)
  .forTargets(lblEmailFailed)
  .setVisible(true);

  var invalidAccountNumber = app.createClientHandler()
  .validateNumber(txtbAccountNumber)
  .forTargets(txtbAccountNumber)
  .setStyleAttribute("color","red")
  .forTargets(btnSubmit)
  .setEnabled(false)
  .forTargets(lblAccountNumber)
  .setVisible(true);

  var invalidAccountAdjustment = app.createClientHandler()
  .validateNumber(txtbAccountAdjustment)
  .forTargets(txtbAccountAdjustment)
  .setStyleAttribute("color","red")
  .forTargets(btnSubmit)
  .setEnabled(false)
  .forTargets(lblAccountAdjustment)
  .setVisible(true);

  txtbOwnerEmail.addBlurHandler(validEmail);
  txtbOwnerEmail.addBlurHandler(invalidEmail);
  txtbAccountNumber.addBlurHandler(validAccountNumber);
  txtbAccountNumber.addBlurHandler(invalidAccountNumber);
  txtbAccountAdjustment.addBlurHandler(validAccountAdjustment);
  txtbAccountAdjustment.addBlurHandler(invalidAccountAdjustment);
  btnSubmit.addClickHandler(handler);

  app.add(txtbOwnerEmail);
  app.add(txtbAccountNumber);
  app.add(txtbAccountAdjustment);
  app.add(lblEmailFailed);
  app.add(lblAccountNumber);
  app.add(lblAccountAdjustment);

  return app;
}

function validateInput(e){
 var app = UiApp.getActiveApplication();
  var pattern = /^[a-zA-Z0-9._]+@[a-zA-Z0-9._]+\.[a-zA-Z0-9._]{2,4}/;
  return pattern.test(e.parameter.txtbOwnerEmail);   
}

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如何将处理程序和验证字段附加到GoogleDoc生成的表单

这是不可能的。您必须使用UiApp或HtmlService自己创建表单。目前，您可以与Google表单进行的唯一交互是可以绑定到onFormSubmit（）。

我确实认为这是可能的，但这需要大量额外的Javascript，而且有点麻烦。