Null Validation for multiple fields in lotus notes

Here   is a simple way to validate mandatory fields, if they a more. Don't waste your time to write a separate code for each and every fields.

I have done a simple validation in javascript for checking that the field not be null.


Step 1: Create a hidden field and name it as of your wish (name of the field may be "MandatoryFields").


Step 2: Give all the mandatory field names with comma separator as the default value of the hidden field as shown below.

Step 3: Put the following function in JSHeader.


function validateSupplier()
{
var f=document.forms[0];
var   fieldsString= f.MandatoryFields.value;
var MandatoryFields = fieldsString.split(",");
var ValidatedFields=0;
for(var i=0; i<MandatoryFields.length;i++)
{
var fieldValue = eval('f.'+MandatoryFields[i]+'.value');
if(trim(fieldValue)=="")
{
alert("Please fill all the mandatory fields for Supplier Information");
eval('f.'+MandatoryFields[i]+'.focus()');
return false;
break;
}
else
{
ValidatedFields=ValidatedFields+1;
if(ValidatedFields==MandatoryFields.length)
{
return true;
}
}
}
}
/* Function used to trim string */
function trim(str)
{
if(!str || typeof str != 'string')
return "";


return str.replace(/^[\s]+/,'').replace(/[\s]+$/,'').replace(/[\s]{2,}/,' ');
}
/**********      Trim Ends *******/


Step 4: Write the following code in "onclick()" of a submit button.


var success = validateSupplier();
if(success)
{
document.forms[0].submit();
}

Its the smarter way to validate similar validation for multiple fields.
We can also validate for the datatypes in the same way.