Hi @Tshwarelo
I usually create a client script (since cannot change State via list) and script include to accomplish this. Here's an example, but please take into account if translations are needed for the alert or message that appears. This example does not.
function onChange(control, oldValue, newValue, isLoading, isTemplate) {
if (isLoading || newValue === '') {
return;
}
if(newValue==3) { //Closed Complete
var ga = new GlideAjax('ICHRScriptInclude');
ga.addParam('sysparm_name', 'validateChildTasks');
ga.addParam('sys_id', g_form.getUniqueValue());
ga.getXML(setValues);
}
function setValues(response) {
var answer = response.responseXML.documentElement.getAttribute('answer');
if(answer == "true") {
alert("Please complete all of the child tasks before closing this case.");
g_form.setValue('state',oldValue);
} else {
g_form.setValue('state',newValue);
}
}
}
validateChildTasks: function(){
var sys_id = this.getParameter('sys_id');
var flag = false;
var taskRec = new GlideRecord('task');
taskRec.addQuery('parent', sys_id);
taskRec.addActiveQuery();
taskRec.query();
while (taskRec.next()) {
flag = true;
}
return flag;
},
