on submit client script

[charukamble]

we want to get data on the form from the server and after populating that field form will submit, without using getxmlwait method
how to achieve this

[sourav1999]

You can achieve this by using GlideAjax in ServiceNow. GlideAjax is a JavaScript class that allows a client-side script to call a server-side script. Here are the steps:

1. Create a Script Include that will be called from the client-side script. This Script Include should be accessible from the client-side.

javascript
var GetServerData = Class.create();
GetServerData.prototype = Object.extendsObject(AbstractAjaxProcessor, {
getServerData: function() {
var sysId = this.getParameter('sysparm_sys_id');
var gr = new GlideRecord('table_name');
if (gr.get(sysId)) {
return gr.getValue('field_name');
}
},
type: 'GetServerData'
});

2. Call the Script Include from the client-side script using GlideAjax.

javascript
var ga = new GlideAjax('GetServerData');
ga.addParam('sysparm_name', 'getServerData');
ga.addParam('sysparm_sys_id', g_form.getUniqueValue());
ga.getXML(Answer);

function Answer(response) {
var answer = response.responseXML.documentElement.getAttribute("answer");
g_form.setValue('field_name', answer);
g_form.submit();
}

In the above code:

- 'GetServerData' is the name of the Script Include.
- 'getServerData' is the function in the Script Include.
- 'sysparm_sys_id' is the parameter passed to the server-side script.
- 'field_name' is the field you want to populate with the data from the server.
- The Answer function is the callback function that is called when the server-side script returns. It sets the value of the field and submits the form.

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