正在更新列表框所选索引

我有一个谷歌脚本，可以在谷歌电子表格和谷歌表单之间读写。它基本上是一个访问材料数据库的表单。

当第一次访问表单时，它会显示所有字段为空，一个填充的材料id（CW_id）的"选择器"列表框，以及选择器列表框中"新建"部分的选项。如果用户停留在"新建"上，则字段保持为空，以便用户手动填充它们，并将其作为新项目附加到数据库中。如果用户滚动"选择器"列表框并选择CW_ID，它将从电子表格中提取并用与所选CW_ID相对应的数据填充字段，供用户编辑（修改零件的详细信息）。

因为我的数据库使用SQL结构，所以我有几个链接表：

• 材料表（保存有关零件的大部分信息，包括制造商的ID[制造商ID]）

• 制造商表（链接到材料。manufacturer_ID）

目前，表单仅使用材料表填充字段，因此在"制造商"字段中，它只显示ID号。出于用户目的，我希望脚本检查材料表中显示的manufacturer_ID，进入制造商表，找到匹配项，并让制造商列表框将其显示为当前选择的索引。（或者只是在字段中显示制造商的名称）

到目前为止，这是我的脚本的一部分：

（滚动至底部"//***这是我正在处理的部分"）

function doGet() {
  var ss = SpreadsheetApp.openByUrl("https://docs.google.com/something")
  var materialsSheet = ss.getSheetByName('materials');
  var manufacturersSheet = ss.getSheetByName('manufacturers');
  var vendorsSheet = ss.getSheetByName('vendors');
  var usersSheet = ss.getSheetByName('users');
  var projectApp = UiApp.createApplication();
  projectApp.setTitle("Materials Form");
  var activeEmail = Session.getActiveUser().getEmail();
  //I create the vertical panel.
  var panel = projectApp.createVerticalPanel().setId('face'); 

  //Here is where I actually create the drop down menu, and assign the function "goSelection" to be activated whenever a selection is made.
  var selector = projectApp.createListBox(true);
  selector.setName('selectionBox').setId('selectionBox').addItem('New');
  var materialsData = materialsSheet.getDataRange().getValues();
  //do until row is less than length of 
  for (var i=0; i < materialsData.length; i++){ 
    if (materialsData [i][1] == "Email"){
      //if row in Column B does not equal gmail, skip to i++
      continue;
    }
    //add Column C (CW_ID) of current row to the selector list
    selector.addItem(materialsData [i][2]); 
  }
  selector.setSelectedIndex(0);
  var selectHandler = projectApp.createServerHandler('goSelection');
  selectHandler.addCallbackElement(panel);
  selector.addChangeHandler(selectHandler);

 //Here is where I create the drop down menu to show list of manufacturers from manufacturers sheet
  var manufSelectorLabel = projectApp.createHTML("<br><b>Manufacturer</b><br>").setWidth('100%');
  var manufSelector = projectApp.createListBox(true);
  manufSelector.setName('manufSelectionBox').setId('manufSelectionBox').addItem('New');
  var manufacturersData = manufacturersSheet.getDataRange().getValues();
  //do until row is less than length of 
  for (var i=0; i < manufacturersData.length; i++){ 
    if (manufacturersData [i][1] == "Email"){
      //if row in Column B does not equal gmail, skip to i++
      continue;
    }
    //add Column C (Manufacturers) of current row to the selector list
    manufSelector.addItem(manufacturersData [i][3]); 
  }
  manufSelector.setSelectedIndex(0);
  var manufSelected = manufSelector.SelectedItem;'
  //**I am unsure whether this should have it's own function
  //var manufSelectHandler = projectApp.createServerChangeHandler('goManuf');
  //manufSelectHandler.addCallbackElement(panel);
  //manufSelector.addChangeHandler(manufSelectHandler);

  var gmailLabel = projectApp.createHTML("<br><b>Gmail:</b><br>").setWidth('100%');
  var gmailField = projectApp.createTextArea().setSize('100%', '25px');
  gmailField.setName('gmailArea').setId('gmailArea');
  gmailField.setText(activeEmail);
  var savedLabel = projectApp.createLabel('Thank you for your submission.');
  savedLabel.setVisible(false).setId('sLabel');
  //At this point, I'm actually declaring the variables for all the fields and text for the actual form. 
  var selectorLabel = projectApp.createHTML("<br><b>Select CW_ID from list.</b>").setId('selectLabel');  

  var descriptionLabel = projectApp.createHTML("<br><b>Description</b><br>").setWidth('100%');
  var descriptionField = projectApp.createTextArea().setSize('100%', '100px');
  descriptionField.setName('descriptionArea').setId('descriptionArea');    
  var manufacturerLabel = projectApp.createHTML("<br><b>Manufacturer</b></br>").setWidth('100%');
  var manufacturerField = projectApp.createTextArea().setSize('100%x', '25px');
  manufacturerField.setName('manufacturerArea').setId('manufacturerArea');    
  var manufacturerListLabel = projectApp.createHTML("<br><b>ManufacturerList</b></br>").setWidth('100%');
  var manufacturerListField = projectApp.createTextArea().setSize('100%x', '25px');
  manufacturerListField.setName('manufacturerListArea').setId('manufacturerListArea');
  var modelnumberLabel = projectApp.createHTML("<br><b>Model Number</b><br>").setWidth('100%');
  var modelnumberField = projectApp.createTextArea().setSize('100%', '25px');
  modelnumberField.setName('modelnumberArea').setId('modelnumberArea');   

  //Next, i create the save button and assign the function "saved" to be activated whenever the button is pressed.
  var saveButton = projectApp.createButton('Save');
  var saveHandler = projectApp.createServerHandler('saved');
  saveHandler.addCallbackElement(panel);
  saveButton.addClickHandler(saveHandler);
  //Now that all the componentes of the form have been declared and set up, I'm going to assemble them on the panel.
  panel.setSpacing(6);
  panel.add(nameLabel);
  panel.add(nameField);
  panel.add(gmailLabel);
  panel.add(gmailField);  
  panel.add(selectorLabel);
  panel.add(selector);
  panel.add(descriptionLabel);
  panel.add(descriptionField);
  panel.add(manufSelectorLabel);
  panel.add(manufSelector);
  panel.add(manufacturerLabel);
  panel.add(manufacturerField);
  panel.add(modelnumberLabel);
  panel.add(modelnumberField);
  panel.add(saveButton);
  panel.add(savedLabel);
  projectApp.add(panel);
  return projectApp;
}

  //This function looks to see what has been selected in the drop down menu, and then pulls the appropriate data from the spreadsheet to display in the fields.
   function goSelection(e){
  var activeEmail = Session.getActiveUser().getEmail();
  var app = UiApp.getActiveApplication();
  var gmailField = app.getElementById('gmailArea');
  var nameField = app.getElementById('nameArea');
  var chosen = e.parameter.selectionBox;
  var ss = SpreadsheetApp.openByUrl("https://docs.google.com/something")
  var materialsSheet = ss.getSheetByName('materials');
  var manufacturersSheet = ss.getSheetByName('manufacturers');
  var vendorsSheet = ss.getSheetByName('vendors');
  var materialsData = materialsSheet.getDataRange().getValues();
  var manufacturersData = manufacturersSheet.getDataRange().getValues();
  var vendorsData = vendorsSheet.getDataRange().getValues();
  var panel = app.getElementById('face');
  var standardpartField = app.getElementById('standardpartArea');
  var descriptionField = app.getElementById('descriptionArea');
  var manufacturerField = app.getElementById('manufacturerArea');
  var manufacturerListField = app.getElementById('manufSelectionBox');
  var modelnumberField = app.getElementById('modelnumberArea');
if (chosen != 'New') {
 for (var i=1; i < materialsData.length; i++){
    if (materialsData [i][1] == "Email"){
  //if row in Column B does not equal gmail, skip to i++
  continue;
   }
   if (materialsData [i][2] != chosen){
    continue;
    }
    nameField.setText(materialsData [i][0]);
    gmailField.setText(materialsData [i][1]);
    standardpartField.setText(materialsData [i][3]);
    descriptionField.setText(materialsData [i][4]);

    //****THIS IS THE PART I'M WORKING ON
    //set manufacturerField to manufacturer of current row
    //loop through manufacturer sheet until row matches with manufacturersField
    //when a match is found, selector box index to same row
    manufacturerField.setText(materialsData [i][5]);      
    for (var i=1; i < manufacturersData.length; i++){
      if (manufacturersData [i][1] == "Email"){
      //if row in Column B does not equal Email, skip to i++
        continue;
      }
      if (manufacturersData [i][2] != manufacturerField){
        continue;
      }
     manufacturerListField.setSelectedIndex(i);
    }
    modelnumberField.setText(materialsData [i][6]);
    }
}

这对我来说很有道理，但不起作用。我点击选择器列表框中的一个零件，所有信息都会填充到字段中，正如我所希望的那样。然而，制造商列表框并没有跳转到正确的制造商（如制造商字段中所填充的），它只是停留在那里并保持原样。

（查看图片以了解表单的外观）

http://oi61.tinypic.com/6h6tqp.jpg

制造商列表框和字段显示，但现在，只有制造商字段更改以显示选择零件时的数据）

如有任何帮助，我们将不胜感激！：）