Display an alert when a value is removed from list collector variable

[Amit Rao]

Hello Experts,

We have a requirement to show an alert whenever values are removed from List collector variable.

Example: below is a variable of type list collector having ids in it.

so if ID -33524 is removed then it should show an alert ('Caution: you are removing this ID');

How can we achieve this requirement? 

[Samaksh Wani]

Hello @Amit Rao 

You need to write the below onChange Client Script :-

function onChange(control, oldValue, newValue, isLoading) {

alert("Caution: you are removing this" +oldvalue)

}

Plz mark my solution as Accept, If you find it helpful.

Regards,

Samaksh

[piyushsain · Accepted solution]

Do this by calling Glide Ajax from the OnChange Client Script on the List Collector Variable.

var ga = new GlideAjax('GetData');
    ga.addParam('sysparm_name', 'getValueList');
    ga.addParam('sysparm_value', newValue);
    ga.addParam('sysparm_old_value', oldValue);
    ga.addParam('sysparm_table', 'tablename');//add the table name List Collector is refering to
    ga.getXML(ajaxResponse);
}

function ajaxResponse(serverResponse) {
    // Make all requested updates to the form
    var result = serverResponse.responseXML.getElementsByTagName('result');
    alert ('Caution: you are removing this ID ':result);

}

Script Include :

getValueList: function() {
    var table = this.getParameter('sysparm_table');
    var newValue = this.getParameter('sysparm_value');
    var oldValue = this.getParameter('sysparm_old_value');

    newValue = newValue.split(',');
    oldValue = oldValue.split(',');
    var arr = new ArrayUtil();
    var duplicatesRemoved = arr.diff(oldValue, newValue);
    var dispVal = [];
    for (var i in duplicatesRemoved) {
        var tableGR = new GlideRecord(table);
        tableGR.get(duplicatesRemoved[i]);
        dispVal.push(tableGR.name); // whatever field it is that you want to display
    }
    return dispVal;
},