Hello! In version 1.0.2003.3 there was an opportunity to redefine in class CustomerEntity method ToString () and property Country: public new System. String Country { get {return base. Country} }

public override ToString () { return this. Country; }

At a binding countryTextBox. DataBindings. Add ("Text", order, "Customer") result was: countryTextBox. Text = "order. Customer. Country". Whether probably to make it in version 1.0.2005.1 without reception of exception "Cannot bind to property or column Customer on DataSource "?

Egor, Can you try this please and let me know the result?

 countryTextBox. DataBindings. Add ("Text", customer, "Customer.Country") 

Good morning!

 countryTextBox. DataBindings. Add ("Text", order, "Customer.Country") 

causes exception "Cannot bind to property or column Customer on DataSource". The kind of a call is efficient only:

 countryTextBox. DataBindings. Add ("Text", order.Customer, "Country") 

why not: countryTextBox. DataBindings. Add ("Text", customer, "Country");

?

Otis wrote:

why not: countryTextBox. DataBindings. Add ("Text", customer, "Country");

?

The data from "Country" field of property "order.Customer" will be connected?

Egor wrote:

Otis wrote:

why not: countryTextBox. DataBindings. Add ("Text", customer, "Country");

?

The data from "Country" field of property "customer.Customer" will be connected?

Setting up these kind of databindings require an object, the property name and the name of the property to bind to. so if you want to bind 'Country' of a customer object to the Text property of a textbox, you should use the code I stated.

I have edited a code of a call. The call

countryTextBox. DataBindings. Add ("Text", order, "Customer.Country") 

causes exception. The call

 countryTextBox. DataBindings. Add ("Text", order.Customer, "Country") 

works.

The form of a call from MSDN 'You can also use a period-delimited navigation path when you bind to an object whose properties return references to other objects (such as a class with properties that return other class objects). For example, the following navigation paths all describe valid data fields:'

"Size.Height" "Suppliers.CompanyName" "Regions.regionsToCustomers.CustomerFirstName" "Regions.regionsToCustomers.customersToOrders.ordersToDetails.Quantity" it is not efficient?

order.Customer works because that too just returns a single object. Specifying paths in the 3rd parameter of teh Add() method only works with datasets is my understanding. At least it doesn't work always.