SAPUI5 suspend / resume oData binding not triggering

[adamharkus]

I need to setup oData binding in a view so that, by default the items aggregation of a table (containing products) is 'suspended' until I click a button that 'resumes' the binding and loads in the products.

Example is here UI5 Tips: Use of Binding Suspend | SAP Blogs but when I try to apply this to the items aggregation of a table, the resume() does nothing, and no products are shown.

 <Table id="productsTable"
     items="{path: 'Products', suspended: true }"

 onProductSearchAll: function (oEvent) {
                    const oView = this.getView();
                    const table = oView.byId("productsTable");
                    const binding = table.getBinding("items");
                    binding.resume();
}

For now, the workaround has been to NOT include the items aggregation in the view, and to unbind/bind the items aggregation in the controller.

This is a more cumbersome solution, so would be good to confirm why the cleaner suspend/resume solution fails in this scenario.

[Marian_Zeis]

does a "binding.refresh()" after "binding.resume()" help?

[adamharkus]

marianzeis Unfortunately not.

I can see that the binding has a property of bSuspended: true, so the suspend works.

It's just the resume() part that seems to do nothing.

[Marian_Zeis]

Here is the documentation for it :
https://ui5.sap.com/#/topic/b0f5c531e5034a27952cc748954cbe39

They talk a lot about V4, do you have a V2 List Binding?

In the documentation they also link a sample app with using this suspended. You may find a solution there?

// resume binding to BusinessPartnerList to trigger request when dialog is opened

if (oBPListBinding.isSuspended()) {

oBPListBinding.filter(new Filter("BusinessPartnerRole", FilterOperator.EQ, "01"));

oBPListBinding.sort(new Sorter("CompanyName"));

oBPListBinding.resume();

}

[boghyon]

Is the default model an ODataModel in the first place? Or is it a client-side model (e.g. JSONModel)?

[adamharkus]

boghyon-sap It's an ODataModel

[adamharkus]

20eed143c19f4b82bc4cf049916102cb

It's v2.

And I've implemented it exactly as prescribed... the resume() appears to do nothing.

[boghyon]

And if you remove suspended: true from the binding definition, does the ListBinding fetch the entities? If not, then you might have got the binding path wrong as suggested by Jun in the answer.

[boghyon]

I just added an answer at https://stackoverflow.com/a/76809592/5846045. If it helped, please consider removing this duplicate question.

[junwu]

You can only suspend absolute bindings or bindings which are quasi-absolute.

does your binding satisfy that condition?

[adamharkus]

junwu

My data source is...

   "dataSources": {
            "productService": {
                "uri": "/sap/opu/odata/itcp/product_srv/",
                "type": "OData",
                "settings": {
                    "odataversion": "2.0",
                    "localUri": "localService/metadata.xml"
                }
            }

and the binding is...

  <Table id="productsTable"
                items="{path: 'Products', suspended: true }"

So what exactly is an absolute/quasi-absolute binding? And does this qualify?

Note* It looks like the resume() is the issue, not the suspend. The suspend appears to work as no oData is returned. The issue is that I can't resume() and load the oData.

[junwu]

absolute binding starts with /. yours doesn't look like absolute binding

{path: '/Products', suspended: true }