Hi CRMAG
You can add field level validation by applying a little javascript to the onChange event of the CRM attribute you wish to control.
This script checks the data on entry against a regular expression and alerts the user if it does not match the format specified (in this case 8 numbers only).
I often use this technique for fields such as bank account numbers (8 numerical digits only) or sort codes (xx-xx-xx) etc
Here's the code, You just need to replace my 'new_attributename' with yours, and away you go.
You can also change the "quoted text" to return whatever message to the user you'd like.
Hope this helps :)
//Regular Expression for, "8 Numerical digits only"
var 8numFormat=/^\d{8}$/
//Check For Data on entry
if (crmForm.all.new_Attributename.DataValue != null)
//if data exists, check it's format against the expression
{
if (crmForm.all.new_Attributename.DataValue.search(8numFormat)==-1)
//if it does not match, Alert the user and clear the data for re-input
{
alert("Please enter a valid number using 8 numerical digits");
crmForm.all.new_Attributename.DataValue = null;
}
}
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