Text Controls
WPF provides controls for editing and displaying text. The
simplest text editing control is TextBox. By default, it allows a single line
of text to be edited, but by setting AcceptsReturn to true, it can edit multiple
lines. It provides basic text editing facilities: selection support,
system clipboard integration (cut, paste, etc.), and multilevel undo
support.
Example 5-8 shows two TextBox elements, one with default settings
and one in multiline mode.Figure 5-9
shows the results. (To illustrate the multiline text box, I typed
"Enter" in the middle of the text before taking the screenshot.) Example 5-8 and Figure 5-9 also show PasswordBox, which is similar to TextBox, but is designed for entering
passwords. As you can see, the text in the PasswordBox has been displayed as a line of
identical symbols. This is common practice to prevent passwords from
being visible to anyone who can see the screen. You can set the symbol
with the PasswordChar property. The
PasswordBox also opts out of the
ability to copy its contents to the clipboard.
Example 5-8. TextBox and PasswordBox
<StackPanel Orientation="Horizontal">
<TextBox Margin="5" VerticalAlignment="Center" Text="Single line textbox" />
<TextBox AcceptsReturn="True" Margin="5" Height="50"
VerticalScrollBarVisibility="Visible"
VerticalAlignment="Center" Text="Multiline textbox" />
<PasswordBox Margin="5" VerticalAlignment="Center" Password="Un5ecure" />
</StackPanel>Figure 5-9. TextBox and PasswordBox
TextBox and PasswordBox ...