Interface IInterpretsExpressionResult
An object which interprets the result of a TALES expression, for the purposes of TAL.
Namespace: ZptSharp.Tal
Assembly: ZptSharp.Abstractions.dll
Syntax
public interface IInterpretsExpressionResult
Methods
| Improve this Doc View SourceCoerceResultToBoolean(Object)
Gets a value which is the boolean representation of the specified result, following the rules of boolean type coercion for ZPT. This is used by various TAL attributes to determine whether a value is 'truthy' or 'falsey'.
Declaration
bool CoerceResultToBoolean(object expressionResult)
Parameters
Type | Name | Description |
---|---|---|
System.Object | expressionResult | An expression result. |
Returns
Type | Description |
---|---|
System.Boolean |
|
Remarks
This method will return false
if the expressionResult
is equal
to the default of its data-type, otherwise it returns true
.
For any data-type, the default of the type is what would be returned by default(T)
for that
type T.
Examples
For System.String
this method returns false
if the value is null
, otherwise
it returns true
.
For System.Int32
this method returns false
if the value is equal to zero, otherwise
it returns true
.
DoesResultAbortTheAction(Object)
Gets a value which indicates whether or not the expression result cancels the current action. See also: AbortZptActionToken.
Declaration
bool DoesResultAbortTheAction(object expressionResult)
Parameters
Type | Name | Description |
---|---|---|
System.Object | expressionResult | Expression result. |
Returns
Type | Description |
---|---|
System.Boolean |
|