So you’ve set the ToolTipText property of a TabPage in a TabControl.  When the user moves the mouse pointer over the tab, the text you specified is supposed to show in a tooltip. 

But what if the tooltip is not showing?  Fortunately, this problem has an easy solution:

Set the ShowToolTips property in the TabControl to true.

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When showing a form that contains a TextBox, it’s common courtesy to focus the TextBox so that the user can begin typing immediately.

To focus a TextBox when a Windows Form first loads, simply set the TabIndex for the TextBox to zero (or the lowest TabIndex for any Control on the Form).

When a Form is displayed, it automatically focuses the Control with the lowest TabIndex.  Note that if your TextBox is pre-initialized with some text, then the entire Text will be selected, as shown below:

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Sometimes it can be challenging to read the Details view in a ListView, especially if the rows are long.  This article shows how to add shading to every second row to make a ListView easier to read.

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This is one of those things that's obvious once you know it.  When dealing with COM, there is often a need to convert a WinForms Form object to an IntPtr handle, and vice versa.

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