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If you have an editable column in List Grid and would like it to auto calculate and display the result in the List Grid.

Steps

Add a Custom HTML element into the form and insert the code below.


Code
<script>
       $(function() {
           
           //calculate
            $(".grid.form-element").change( function(){
    		    var cell = $(this).find(".hover"); 
                var row = $(cell).parents("tr");
        
                  if($(row).find("td")){
                    firstColumnValue = $(row).find("td:nth-child(2) span span").text(); // quantity
                    secondColumnValue = $(row).find("td:nth-child(3) span span").text(); //amount 
        
                    //perform computation
                    value = firstColumnValue * secondColumnValue; // total = amount x quantity
        
                    if(!isNaN(value)){
                        
                        //update hidden json definition
                        json = $(row).find("textarea").val();
                        obj = eval("["+json+"]")[0];
                        fieldId = $(row).find("td:nth-child(4)>span>span").attr("column_key"); // total
                        if(fieldId){
                          obj[fieldId] = value;
                          newJson = JSON.stringify(obj);
                          $(row).find("textarea").val(newJson);
        
                          //update visible column value
                          $(row).find("td:nth-child(4)>span").text(value); // total
                          
                        }
                    }
                  }
            });
        });
</script>

Download Demo App

Download the demo app with examples of using EnjoyHint. It also includes customizable hints from a lookup table as well.


APP_calcListGrid.jwa

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