a question about MaskedTextBox component

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C#

.NET

I wanna use MaskedTextBox to achive some function.

I set MaskedTextBox.Mask = @"\X##########\Y##########\Z##########"，so i key press '123',the compenent can support,then i key press . it prevent me to key press down.
i just wanna the MasketTextBox can suppose float type,and the format can't limit the . position except X,Y,Z .

please do not use textbox,thanks for answer.

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improve my quetion:
x y z means x axis,y axis, z axis（it's step motor）;i set the value in MasketTextBox as below:
X234.1 Y23.123 Z457.928357
so the step motor will reach the value position.