PreSaveAction for Sharepoint Form Fields Validations

HI All,

 Today I will share you one very useful in-built JavaScript functionality, which is used for validating the form fields. Obviously u can go for “Calculated columns”, “Column Validations”, “List Validations” for some validations and required result.

But,,,,,,, Sometimes, the requirement could be quite complicated..

Eg :

#“Start Date” less than “End Date”

##Out of two fields, if one is filled then save the item else cancel.

Likewise this can be used for many validations which we cannot do OOTB.

Ok, now I will give the basic code,

if the requirement is “End date” should not be earlier than “Start Date”..

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<script language=”javascript” type=”text/javascript”>

function PreSaveAction()

{

var date1 = getTagFromIdentifierAndTitle(“INPUT”,”DateTimeFieldDate”,”Start Date”);

var date2 = getTagFromIdentifierAndTitle(“INPUT”,”DateTimeFieldDate”,”End Date”);

var arrDate1 = date1.value.split(“/”);

var useDate1 = new Date(arrDate1[2], arrDate1[1]-1, arrDate1[0]);

var arrDate2 = date2.value.split(“/”);

var useDate2 = new Date(arrDate2[2], arrDate2[1]-1, arrDate2[0]);

if(useDate1 > useDate2)

{

alert(“The End Date cannot happen earlier than the Start Date”);

return false; // Cancel the item save process

}

return true; // OK to proceed with the save item

}

function getTagFromIdentifierAndTitle(tagName, identifier, title) {

var len = identifier.length;

var tags = document.getElementsByTagName(tagName);

for (var i=0; i < tags.length; i++) {

var tempString = tags[i].id;

if (tags[i].title == title && (identifier == “” || tempString.indexOf(identifier) == tempString.length – len)) {

return tags[i];

}

}

return null;

}

</script>

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U can just do some simple tweaks in this piece of code and can do magicsss :)

See you next time… byyyeee..:)