I have found a few textboxes here and there in my program that accepts Control+A shortcut to select the entire text \"by default\" with \"no coding\".
I don\'t know
You might be looking for the ShortcutsEnabled property. Setting it to true would allow your text boxes to implement the Ctrl+A shortcut (among others). From the documentation:
Use the
ShortcutsEnabledproperty to enable or disable the following shortcut key combinations:
CTRL+Z
CTRL+E
CTRL+C
CTRL+Y
CTRL+X
CTRL+BACKSPACE
CTRL+V
CTRL+DELETE
CTRL+A
SHIFT+DELETE
CTRL+L
SHIFT+INSERT
CTRL+R
However, the documentation states:
The TextBox control does not support the CTRL+A shortcut key when the Multiline property value is true.
You will probably have to use another subclass of TextBoxBase, such as RichTextBox, for that to work.