使用OData在Dynamics CRM中检索多个实体

Question

I have a ribbon button command which executes a javascript function and passes in the selected rows in a grid. I am looping through that list to create a $select filter to make a RetrieveMultiple request. The problem is everytime I get the following error

400: Bad Request: No Property 'id' exists in type 'Microsoft.Xrm.Sdk.Entity' at position 1

I have tried with id instead of Id but I still get the same error. My code is below

function approveMultipleApplications(selectedApplicationReferences) {
    if (selectedApplicationReferences && selectedApplicationReferences.length > 0) {
        var filter = '';
        for (var i = 0; i < selectedApplicationReferences.length; i++) {
            filter += '(id eq guid\'' + selectedApplicationReferences[i].Id + '\')';
            if (i < selectedApplicationReferences.length - 1) {
                filter += ' or ';
            }
        }

        var options = "$select=new_assessmentcount,new_requiredassessmentcount&$filter=" + filter;
        try {
            SDK.REST.retrieveMultipleRecords("new_application", options, retrieveApplicationsCallBack, function (error) {
                alert(error.message);
            }, retrieveComplete);
        }
        catch (ex) {
            Xrm.Utility.alertDialog('Something went wrong, please try again or contact your administrator ' + ex, null);
        }
    }
    else {
        Xrm.Utility.alertDialog('You must select at least one application to approve', null);
    }
}

The selectedApplicationReferences[i].Id is in this format {guid-value} Any help or guidance is appreciated

Answer 1

The error message is pretty much spot on: Use LogicalNameId instead of just Id . In your case that would be new_applicationId :

filter += '(new_applicationId eq guid\'' + selectedApplicationReferences[i].Id + '\')';

It can be a bit confusing since there is actually no Id -field in the database. If you use eg early bound classes, the Id field is set for you behind the scenes, so that might have confused you. The Id field is not returned by the OData endpoint.