I have three radio buttons in a group on a form.
I bind these to three boolean properties of a business object.This binding
changes the behavior of the buttons.
Let's say button1 is selected. When I click one time on button2, then

Hello, sorry for my english, i'm from Italy
I have the following scenario: a form with controls binded to a
bindingsource that is binded to a typed-dataset-table.
I must have the form (and the control) in a readonly mode to prevent

I have a WinForm application that has Textbox controls bound to a model with
SQL server columns of data type, money. I only want to allow values like
45.33 to be entered, and not 45.336.
What is the best way to limit input to two decimal points of precision?

I have a DataGridView bound to a DataTable via a BindingSource object.
Is there a way I can control how the sort comparisons are done when
columns in the DataGridView are clicked?
I can't see where the sorting is done.  My guess is in the default

How to call a form from other form and only display information with the same
Key as the caller form?
Ex: If I have a form with codproduct and want to call another form to only
display information that contains as foreign key the same codproduct as the

In a windows form I have 2 comboboxes. One depends on the values selected in
the other. In a one-to-many relation. This is done by setting the datasource
of the other to the relation between the two. It all works unless I change
the value of only the first combobox. Then the ...

I have bound the form's Location property to a userSettings setting
"WindowLocation" using the configuration settings dialogs in vs2005. I
can't within a few minutes figure out how to write out the setting on
FormClosing event. I find the few docs on this totally obtuse. Can you

I've databound the SelectedObject property of a PropertyGrid to a list of
objects that i have. When i select different objects the data appears fine
in my PropertyGrid. However, I want to perform some checking on the object
each time it changes. Because I had bound the data to ...

I have a quite complicated problem which I hope that I can explain right.
I have a very simple form with three text boxes, one binding source and one
binding navigator. The three text boxes are bound to the FirstName, LastName
and the Age property on the Employee class which you ...

I would like to know what's the best way to implement a business logic
layer between my user interface and my database.
I would say I'd make a dll-project for the business logic layer and make
classes that represent objects/tables. For example, if I have a table

I have a windowsform (not an ASP .net) aplication with a data layer, a
business layer, and a presentation layer.
one business class  has 5 metods; GetEmployees, GetEmployeeByID,
DeleteEmployee, UpdateEmployee, and AddEmployee.

I have a custom business object that implements INotifyPropertyChanged
and IEditableObject.  The collection of these objects inherits from
BindingList<T>.  I created a BindingSource from which a grid (list of
objects) and a detail groupbox where bunch of textboxes are bound to

Hello, World!
Good day to you!
I am using VS 2005 and I have a listbox that is data bound to a column in a
table on a SQL Express database.  When I select the "New" button it calls an

I have a simple Windows form bound to one SQL Server table using the
BindingSource control. I would like to use the BindingNavigator
control to navigate through records. One text box holds a required
field. When I click the AddNew button on the BindingNavigator, a new