The aim of the restriction constraint is to port all the data type restrictions from xsd to the MForm control.

When generating the form from the schema, the restrictions will appear in the Additions property of the corresponding item.

The Restriction control has two important properties:

• RestrictionType - the restriction type
• Value - the value that the restriction will consume

There are several constraint types, most of them corresponding to the xml schema restriction types:

• MaxLength - the maximal field length
• MinLength - the minimal field length
• Length - the exact field length
• MinInclusive - the field value parsed as number cannot be lower than or equal the specified value
• MinExclusive - the field value parsed as number cannot be lower than the specified value
• MaxInclusive - the field value parsed as number cannot be higher than or equal the specified value
• MaxExclusive - the field value parsed as number cannot be higher than the specified value
• Pattern - the field value must match the specified pattern (the pattern should be written in the Value property)
• TotalDigits - the field value parsed as number cannot have more total number of digits than the specified value
• FractionDigits - the field value parsed as number cannot have more fraction digits than the specified value