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    <p>The <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.combobox.aspx" rel="noreferrer"><code>ComboBox</code></a> control inherits from the <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.listcontrol.aspx" rel="noreferrer"><code>ListControl</code></a> control.</p> <p>The <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.combobox.selecteditem.aspx" rel="noreferrer"><code>SelectedItem</code></a> property is a proper member of the <code>ComboBox</code> control. The event that is fired on change is <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.combobox.selectionchangecommitted.aspx" rel="noreferrer"><code>ComboBox.SelectionChangeCommitted</code></a></p> <p><strong>ComboBox.SelectionChangeCommitted</strong></p> <blockquote> <p>Occurs when the selected item has changed and that change is displayed in the ComboBox.</p> </blockquote> <p>The <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.listcontrol.selectedvalue.aspx" rel="noreferrer"><code>SelectedValue</code></a> property is inherited from the <code>ListControl</code> control. As such, this property will fire the <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.listcontrol.selectedvaluechanged.aspx" rel="noreferrer"><code>ListControl.SelectedValueChanged</code></a> event.</p> <p><strong>ListControl.SelectedValueChanged</strong></p> <blockquote> <p>Occurs when the SelectedValue property changes.</p> </blockquote> <p>That said, they won't fire the <a href="http://msdn.microsoft.com/en-us/library/system.componentmodel.inotifypropertychanged.aspx" rel="noreferrer"><code>INotifyPropertyChanged</code></a>.<a href="http://msdn.microsoft.com/en-us/library/system.componentmodel.inotifypropertychanged.propertychanged.aspx" rel="noreferrer"><code>PropertyChanged</code></a> event the same, but they will anyway. The only difference is in the firing event. <code>SelectedValueChanged</code> is fired as soon as a new selection is made from the list part of the ComboBox, and <code>SelectedItemChanged</code> is fired when the item is displayed in the TextBox portion of the ComboBox.</p> <p>In short, they both represent something in the list part of the ComboBox. So, when binding either property, the result is the same, since the <code>PropertyChanged</code> event is fired in either case. And since they both represent an element from the list, the they are probably treated the same.</p> <p>Does this help?</p> <p><strong>EDIT #1</strong></p> <p>Assuming that the list part of the ComboBox represents a property (as I can't confirm since I didn't write the control), binding either of <code>SelectedItem</code> or <code>SelectedValue</code> affects the same collection inside the control. Then, when this property is changed, the same occurs in the end. The <code>INotifyPropertryPropertyChanged.PropertyChanged</code> event is fired on the same property.</p>
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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