Ensure that if text box A is filled in, text box B must also be filled in before submitting. Vice versa, if text box B is filled in, make sure text box A has data as well. Is it possible to loop this check for multiple text boxes? For example, if row A of text boxes has data, verify that the corresponding text boxes in row B also have data. Not all text boxes in row A need to be filled in. Thank you.
Your inquiry seems a bit complex to grasp; could you please provide more clarity on your exact needs? There is no requirement for specific conditions; simply follow these steps:
<script>
function checkForm() {
if (!isEmpty(document.myForm.checkA.value)
&& !isEmpty(document.myForm.checkB.value))
return true;
else
return false;
}
function isEmpty(text) {
return text.length == 0 || !text.match(/[^\s]/))
}
</script>
<form name="myForm" onSubmit="return checkForm();">
<input name="textA" type="text" />
<input name="textB" type="text" />
<input type="submit" value="Submit!" />
</form>
If you want a simple solution, consider using an array to store references to your text boxes. For instance, let's assume you have a grid layout of 5 columns and 3 rows:
var col = new Array(5);
var row = new Array(3);
// First row
col[0] = document.myForm.checkA1;
col[1] = document.myForm.checkB1;
// Continue for remaining columns
row[0] = col;
// Second row
col = new Array(5);
col[0] = document.myForm.checkA2;
col[1] = document.myForm.checkB2;
// Continue for remaining columns
row[1] = col;
// Third row
col = new Array(5);
col[0] = document.myForm.checkA3;
col[1] = document.myForm.checkB3;
// Continue for remaining columns
row[2] = col;
You can iterate over the elements in row[0] and check if, for example, row[0][2] contains text by verifying that row[1][2] also holds text.
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