Validate

Edit Field - Validate Method

Uses simple repository field and table rules to validate field

Member of Edit Field (PRIM_MD.EditField)

Parameters

Name	Type	Data Type	Description
Valid	*Result (Optional)	Boolean	Returns true if field passes the validation rules
Operation	*Input	Enumeration	The operation for the field to be validated against(insert, update and delete)
Table	*Input (Optional)	PRIM_OBJT	Table to be used for validation

Details

The Validate method allows for the use of table and field rules to be used for Edit Fields in the Visual LANSA Web runtime.
 
Validate operation allows for the validation usage on insert, update and deletion.
 
If valid is returned as false the field property HasError will be set to true.
 
Validating against a LANSA table requires the table name to be prefixed with '#'.
 
Complex logic and look up rules are not implemented for use in the validate method.

Example

This example shows the validating xEmployeeSurname against the xEmployee table for insert, update and deletion.
 
xEmployeeSurname uses a simple logic check to validate it is not blank.

Begin_Com Role(*EXTENDS #PRIM_WEB) Theme(#SYS_THEME) Layoutmanager(#Layout1)
    Define_Com Class(#PRIM_TBLO) Name(#Layout1)
    Define_Com Class(#PRIM_TBLO.Row) Name(#Layout1Row1) Displayposition(1) Parent(#Layout1)
    Define_Com Class(#PRIM_TBLO.Column) Name(#Layout1Column1) Displayposition(1) Parent(#Layout1)
    Define_Com Class(#PRIM_TBLO.Item) Name(#Layout1Item1) Alignment(TopLeft) Column(#Layout1Column1) Manage(#Insert) Parent(#Layout1) Row(#Layout1Row1) Sizing(None) Flow(Down)
    Define_Com Class(#PRIM_TBLO.Item) Name(#Layout1Item2) Alignment(TopLeft) Column(#Layout1Column1) Manage(#Update) Parent(#Layout1) Row(#Layout1Row1) Sizing(None) Flow(Down)
    Define_Com Class(#PRIM_TBLO.Item) Name(#Layout1Item3) Alignment(TopLeft) Column(#Layout1Column1) Manage(#Delete) Parent(#Layout1) Row(#Layout1Row1) Sizing(None) Flow(Down)
    Define_Com Class(#PRIM_TBLO.Item) Name(#Layout1Item4) Alignment(TopLeft) Column(#Layout1Column1) Parent(#Layout1) Row(#Layout1Row1) Sizing(None) Flow(Down)
    Define_Com Class(#PRIM_TBLO.Item) Name(#Layout1Item5) Alignment(TopLeft) Column(#Layout1Column1) Manage(#EmployeeSurname) Parent(#Layout1) Row(#Layout1Row1) Sizing(None) Flow(Down)
 
    Define_Com Class(#xEmployeeSurname.EditField) Name(#EmployeeSurname) Displayposition(1) Left(0) Parent(#COM_OWNER) Tabposition(1) Top(0) Width(505)
    Define_Com Class(#PRIM_MD.FlatButton) Name(#Delete) Caption('Validate on Delete') Parent(#COM_OWNER) Displayposition(4) Tabposition(4) Top(147) Left(0) Width(513)
    Define_Com Class(#PRIM_MD.FlatButton) Name(#Update) Caption('Validate on Update') Parent(#COM_OWNER) Displayposition(3) Tabposition(3) Top(111) Left(0) Width(513)
    Define_Com Class(#PRIM_MD.FlatButton) Name(#Insert) Caption('Validate on Insert') Parent(#COM_OWNER) Displayposition(2) Tabposition(2) Top(75) Left(0) Width(513)
 
        Evtroutine Handling(#Insert.Click)
 
            #EmployeeSurname.Validate( Insert #xEmployee )
 
        Endroutine
 
        Evtroutine Handling(#Update.Click)
 
            #EmployeeSurname.Validate( Update #xEmployee )
 
        Endroutine
 
        Evtroutine Handling(#Delete.Click)
 
            #EmployeeSurname.Validate( Delete #xEmployee )
 
        Endroutine
 
End_Com

Parameters

Details

Example

See also