In this widget we will display the values we set to the dataloadproperties widget property.

1. Download digitalworkplace.custom.js from the “/Style Library/DigitalWorkplace/JS” folder within SharePoint.
2. Paste the Customdataload Callback within digitalworkplace.custom.js
3. Upload the updated digitalworkplace.custom.js to the “/Style Library/DigitalWorkplace/JS” folder within SharePoint
4. In the Management Apps tab of AppManager, click on the View Manager. Click “Add New”. In the left pane navigate to “/DigitalWorkplace/Content/Templates/” for the folder path. Click “Choose File”, navigate to your custom template (ListItems.html). Click “Save”.
5. In the Manage Widgets window, find the GenericList widget and click its ‘View Widget Definitions’ button. Then click on ‘Add New’. Create your widget instance with the values in the Widget Manager – Widget Instance Section. Click Save & Exit
6. Copy the Widget Snippet of your Widget Instance
7. Paste the snippet into a Content Editor Web Part on a page within the site. Publish the page.
8. Flush your cache by clicking on the Akumina icon in the left rail, clicking the refresh icon, then clicking “Refresh All Cache”
9. Refresh the page. You will see your Hello World widget.

function MyHelloWorldDataCallback(listRequest, def) {
	var me = this;

    var context = new SP.ClientContext();
	
	if (listRequest.dataLoadProperties == null || listRequest.dataLoadProperties == '') {
        listRequest.dataLoadProperties = "{'first':'Hoo','second':'Blah'}";
    }
    var dataLoadProperties = JSON.parse(listRequest.dataLoadProperties.replace(/'/g, "\""));
	
	listRequest.first = dataLoadProperties.first;
	listRequest.second = dataLoadProperties.second;


    Akumina.AddIn.Logger.logSPCall('HelloWorldCallback');
    context.executeQueryAsync(
		Function.createDelegate(me, function () { HelloWorldSuccesshandler(listRequest, def); }),
		Function.createDelegate(me, function (sender, args) {
		    Akumina.AddIn.Logger.WriteErrorLog('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
		    HelloWorldErrorhandler(listRequest, def);
		})
	);
	
}

function HelloWorldSuccesshandler(listRequest, def) {
	var result = {};
	result.Items = [];
	result.ListName = "My Hello World Customdataload";
		
	item =
	{
		"Key": listRequest.first,
		"Value": listRequest.second
	}

	result.Items.push(item);
	
	def.resolve({ response: result });
   
}
	
function HelloWorldErrorhandler(listRequest, def) {
	def.reject();
}

<div> 
	<h2>List Items from {{ListName}}</h2>
    {{#if Items}}
    <table>
        <thead>
            <tr><th>Key</th><th>Value</th></tr>
        </thead>
        {{#Items}}
            <tr><td>{{Key}}</td><td>{{Value}}</td></tr>
        {{/Items}}
    </table> 
    {{else}}
        No Items available.
	{{/if}}
</div>

As Customdataload callbacks run out of GLC widgets we will be editing the GenericList widget within the Widget Manager. We will be only ading our new view to the WidgetViews section

ListItems

/Style Library/DigitalWorkplace/Content/Templates/ListItems.html

HelloWorld – Customdatacallback

MyHelloWorldDataCallback

customdataload

{‘first’:’Hello’,’second’:’World’}

Checked

Selected

See the articles below for more on the Customdataload callback

• Accessing a List from a Different Site
• Overview
• Accessing a List
• Third Party Data