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    <p><a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.control.mousehover%28v=vs.110%29.aspx" rel="nofollow noreferrer"><code>Control.MouseHover</code></a> "occurs when the mouse pointer rests on the control."</p> <blockquote> <p>A typical use of MouseHover is to display a tool tip when the mouse pauses on a control within a specified area around the control (the "hover rectangle"). The pause required for this event to be raised is specified in milliseconds by the MouseHoverTime property.</p> </blockquote> <p>So this event is not raised only whenever the mouse is over the control - there is a delay associated. So the position is somewhat irrelevant, as the mouse could have moved somewhat during that delay.</p> <p>Do you really need to be using this event? As <a href="https://stackoverflow.com/questions/20184304/mouse-coordinates-in-mousehover-event/20184445#comment30092006_20184304">Dan-o mentioned</a>, <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.control.mousemove.aspx" rel="nofollow noreferrer"><code>MouseMove</code></a> passes a <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.mouseeventargs.aspx" rel="nofollow noreferrer"><code>MouseEventArgs</code></a> which does provide the coordinates, as you request. It may be the right option, depending on what exactly you're trying to do.</p> <p>To get the mouse position at <em>any time</em> though, you can use the <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.cursor.position.aspx" rel="nofollow noreferrer"><code>Cursor.Position</code></a> property. This will give you the <em>screen coordinates</em> of the cursor. From here, you can call the <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.control.pointtoclient.aspx" rel="nofollow noreferrer"><code>Control.PointToClient</code></a> method, to get the coordinates relative to a particular <code>Control</code>.</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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