Form Element

Summary

Methods

template::element create form_name element_name \
                        -widget widget \
                        -datatype datatype \
                        -html { attribute value attribute value ... } \
                        -validate { \
                          name { expression } { message } \
                          name { expression } { message } \
                          ... } \
                        -options { { label value } { label value } ... } \
                        -maxlength maxlength \
                        -value value \
                        -values { value value ... }
                        

Append a new element to the specified form.

• The html switch may be used to include additional HTML attributes in the input, select, or textarea tag used to ultimately render the element.
• The validate switch may be used to perform simple custom validation of each element value. type is a keyword for the type of validation being performed. This same keyword must be referenced by the formerror tag to customize the presentation and layout of the error message for this validation step. expression must be a block of arbitrary Tcl code that evaluates to 1 (valid) or 0 (not valid). The variable $value may be used in the expression to reference the element value. message is simply a string containing a message to return to the user if validation fails. The variables $value and $label may be used in the message to reference the parameter value and label (or name if no label is supplied).

template::element set_properties form_name element_name
                                 

template::element get_value form_name element_name

Example

template::element get_values form_name element_name

Note(s)