Insert a TextGrid question into a SingleGrid Question

Challenge

1. Insert a Text Grid question into a Single Grid
2. If radio button on Answer1 is click, text box on the same row is enabled accordingly
3. If a text box is enable and empty, user cannot go to the next question

Solution

Precondition:
1. We have a TextGrid dummy question: TEXTGRID1
2. We have a Single Grid: SINGLEGRID
Solution:
1. Create an Object that contains TEXTGRID1 info
2. Insert this Object to SINGLEGRID
3. Save and Verify when user manipulates on our question

Code

function GridTextQuestion(argSingleQuestion, argSelectedValues, argtext)
{
  // initialize an object that contains TextGrid Question info
   this.label = "QUESTION." + argSingleQuestion.label;
   this.text = argtext;
   this.numberOfSubQuestion = argSingleQuestion.questions.length;
   this.selectedValues = argSelectedValues;
}

quest.createTextGrid = function(argQuestion, argSelectedValues, argGridPos)
{
   // declare variables
   var arglabel = argQuestion.label;
   var argtext = argQuestion.text;
   var numberOfQuestions = this.questions.length;
   var numberOfAnswers = quest.questions[1].options.length;

  // get the main table
   var mytable =  $("table[class='grid_inner']");

 // set Header for GridText column
   var gridHeader = $("<td>")
         .addClass("grid_answeroption_text")
         .attr("id","grid_answeroption_text_" + numberOfAnswers + argGridPos)
         .css("text-align", "center");
   gridHeader.append("<nobr><p>" + argtext + "</p></nobr>");
   mytable.find("tr:first").append(gridHeader);

  // append to the main table
   var appendElement = mytable.find("tr:first").next();

  // Create text boxes inside the main table
   var firstRadioButton;
   for (var i=0; i< numberOfQuestions ; i++)
   {
      var position ="even";
      if (i%2!=0)
         position = "odd";
          
      var gridText = $("<td>")
         .addClass("grid_subquestion_" + position)
         .width("1px")
         .css("vertical-align", "top");
      
      var gridTextname = "QUESTION.TEXTGRID1."  + i ;
      
      var gridInput = $("<input type='text'/>")
            .attr("name", gridTextname)
            .attr("value", argSelectedValues[i]);
      
      // if the Radio button on the first column is checked  -> disable all the textbox on the first row
      // now firstRadioButton is a HTML element, if we wanna use val() function, we have to select object by $
     firstRadioButton = appendElement.find("input[type='radio']")[0];		
      if ($(firstRadioButton).is(':checked')==false)
      {
         gridInput.attr("disabled", "enabled");
      }     

      // append textbox to the cell
      gridText.append(gridInput);

     // append cell to the main table
      appendElement.append(gridText);
      appendElement = appendElement.next();
   }
}

quest.onInit = function()
{
   // Declare TextGrid Header name and values
   var textGridHeaderName = "TextGridHeader1";	
   var numberOfQuestions = this.questions.length;
   var selectedValues = new Array(numberOfQuestions);
   selectedValues[0] = "{{TEXTGRID1[0].Value}}";
   selectedValues[1] = "{{TEXTGRID1[1].Value}}";
   selectedValues[2] = "{{TEXTGRID1[2].Value}}";
   
   //create new GridTextQuestion object to contains GridText values
   var q= new GridTextQuestion(this, selectedValues, textGridHeaderName);

  // render this Question
   this.createTextGrid(q, selectedValues, 1);
  
  // if the radio buttons on first column are checked, textboxes on the same row are enabled accordingly 
  // Otherwise, textboxes are disabled
   $("input:radio").each(
  		function(i)
  		{
                        $(this).click(function (){
                           if ($(this).val()== "1"){
                              $(this).parent().parent().find("input[type='text']").removeAttr('disabled'); 
                              var thietkothetinduoc = $(this).attr("disabled");
                           }
                           else{
                              $(this).parent().parent().find("input[type='text']").attr("disabled", "enabled");
                           }
                        });
  		}
  	);
}

this.questioncheck = function(){
   // if there's a textbox which is enable and empty, user cannot go to the next question and a warning message will be displayed   
   ErrorMessages.getInstance().clearErrorMessages();
   var isValid = true; 
   var textboxes = $("input:text");
   for (var i=0; i < textboxes.length ; i ++)
   {
      if (($(textboxes[i]).val()=="") && ($(textboxes[i]).is(":disabled") == false))
      {
         isValid = false;
      }
   }

   if (!isValid)
      ErrorMessages.getInstance().showErrorMessage("YOU NEED TO FILL ALL ANSWER BEFORE GOING NEXT"); 

   return isValid;
}