MaskedTextProvider.Add Method (String)
Adds the characters in the specified input string to the end of the formatted string.
Assembly: System (in System.dll)
Return ValueType: System.Boolean
true if all the characters from the input string were added successfully; otherwise false to indicate that no characters were added.
The method adds the characters from the input string to the formatted string, starting with the first available position after LastAssignedPosition. This method will fail for any of the following reasons:
Any of the characters in the input value, input, are not printable, or the input value does not match its corresponding mask element.
There are not enough available edit positions in the formatted string after the last assigned position.
If this method fails, no additions are made and the method returns false.