18. Working with Data Types and Data Display Formats : Numeric Templates : Input Masking with Numeric Templates
 
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Input Masking with Numeric Templates
When input masking is on, 0.00 is displayed in the entry field for any numeric template, including at least one zero to the left and two zeros to the right of the decimal point. It displays as many zeros to the right of the decimal point as are needed to match the template. The cursor is positioned at the decimal point for input. Enter the number as you do on a calculator, with each digit pushing previously entered digits to the left. Each digit is checked against its corresponding position in the template as you enter it. After the user enters a decimal point, digits are checked and displayed as entered, from left to right, on the right side of the decimal point. Left-justification for numeric templates is not supported with input masking.
Note:  Decimal data types are not supported with input masking.
When input masking is on, the user cannot enter a negative number unless the format template includes a negative indicator.