Get total from dropdown boxes

Question

HelloI have a PDF form that has dropdown boxes in a column that has a text box at the bottom that I want to display a total sum based on the letter showing in the dropdown boxes.  If an "X" is displayed in the dropdown box, then I want it to be counted and included in the total at the bottom.  In the image below there are 4 "X's" displayed in the dropdown boxes and the total at the bottom of the boxes has "4". I want to add a javascript to the "Total Hits" field that automatically adds the number of "X's" displayed in the dropdown boxes.  I will do the same thing for each Table (I, II, III, and IV).Can someone please help me with this?

try67 · Answer

Let's say the names of the drop-down fields are "Dropdown1" to ""Dropdown7".

You can use this code to perform the calculation:

var fields = ["Dropdown1", "Dropdown2", "Dropdown3", "Dropdown4", "Dropdown5", "Dropdown6", "Dropdown7"];
var total = 0;
for (var i in fields) {
    if (this.getField(fields).valueAsString=="X")
        total++;
}
event.value = total;

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