asp.net get item from list in a loop

Question

I have this object like so [ { job: "ABC-123", task: "XYZ" }, { job: "ABC-333", task: "LAX" }];

That object is from an ajax call to here:

public List<VendorUpdateClass> updateVendorItem(List<VendorUpdateClass> edittedItems)
        {
            ConnectionClass jobs = new ConnectionClass();
            return jobs.updateVendors(edittedItems);
        }

which calls this class:

public List<VendorUpdateClass> updateVendors(List<VendorUpdateClass> items)
        {
            VendorUpdateCell = new List<VendorUpdateClass>();

            foreach (object objectItems in items)
            {
                VendorUpdateClass vendorUpdatedItem = new VendorUpdateClass();
                vendorUpdatedItem.job = objectItems.job;
                vendorUpdatedItem.task = objectItems.job;
                vendorUpdatedItem.vendor = objectItems.task;

                VendorUpdateCell.Add(vendorUpdatedItem);
            }


            return VendorUpdateCell;
        }

my issue is with my loop. I am trying to assign the job and task from the object to vendorUpdatedItem Here is the errors I am getting:

'object' does not contain a definition for 'job' and no extension method 'job' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?)

What am I doing wrong ?

Tim · Accepted Answer · 2015-05-27 14:32:11Z

4

On this line:

foreach (object objectItems in items)

you are specifically treating each item in the list as an object. You know the data type so you can do it with the actual data type:

foreach (VendorUpdateClass objectItems in items)

or you could just let the compiler do it for you because the compiler knows too:

foreach (var objectItems in items)

answered May 27, 2015 at 14:32

Tim

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Comments

Glorfindel · Accepted Answer · 2015-05-27 14:28:16Z

1

Change

foreach (object objectItems in items)

to

foreach (var objectItems in items)

The compiler is able to derive the correct class (VendorUpdateClass) if you use var.

answered May 27, 2015 at 14:28

Glorfindel

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Comments

mac · Accepted Answer · 2015-05-27 14:31:31Z

1

public List<VendorUpdateClass> updateVendors(List<VendorUpdateClass> items)
    {
        VendorUpdateCell = new List<VendorUpdateClass>();

        foreach (VendorUpdateClass objectItems in items)
        {
            VendorUpdateClass vendorUpdatedItem = new VendorUpdateClass();
            vendorUpdatedItem.job = objectItems.job;
            vendorUpdatedItem.task = objectItems.job;
            vendorUpdatedItem.vendor = objectItems.task;

            VendorUpdateCell.Add(vendorUpdatedItem);
        }


        return VendorUpdateCell;
    }

Change the foreach to VendorUpdateClass instead of object since you are looping over a collection of VendorUpdateClass.

answered May 27, 2015 at 14:31

mac

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