Dynamics CRM SDK过滤自定义字段的查询

Question

I am trying to pull items from the salesorder entity into my WPF Application (C#) I have created a custom field in the crm called new_xero and published. This is a two-option field. I have 4 orders, 2 with nothing set for this field, one with 'no' selected and one with 'yes' selected.

I have the following code:

QueryExpression qeLocations = new QueryExpression("salesorder");

        string[] cols = { "salesorderid", "name" };
        qeLocations.ColumnSet = new ColumnSet(cols);


        var locations = this.OrgService.RetrieveMultiple(qeLocations);

        listBox1.ItemsSource = (from location in locations.Entities
                                where location.GetAttributeValue<string>("new_xero") == "false"
                                //where (bool)location["new_xero"] == false
                                    select new
                                    {
                                        Name = location["name"],
                                        LocationID = location["salesorderid"]
                                    }).Take(5);

It seems that everything I try to do to the line where location.GetAttributeValue<string>("new_xero") == "false" I can't filter to only those where the option is set to 'no' I have tried int filtering against 0, string against 'false', 'False', 'No', 'no' but can't seem to find the right solution.

Cheers

Answer 1

Found the answer, I needed to add the field new_xero to the cols array. Then either where location.GetAttributeValue<bool>("new_xero") or where location["new_xero"].ToString() == "False" (although opposing for true and false!

Many thanks, Chris