History

Commits on master to Source/Libraries/GSF.Core/ComponentModel/DefaultValueExpressionAttribute.cs6

GSF.Core: Added TypeConvertedValueExpressionAttribute and updated value expression parser to accommodate bi-directional expressions,i.e., where modeled property values can be assigned back to expressions allowing synchronization of a model with an external source, e.g., a user interface element.J. Ritchie Carroll committed 9 years agoec89a33
GSF.Web: Updated DataContext table operations to be cached per session hub-client.J. Ritchie Carroll committed 9 years agoc890f79
GSF.Core: Added UpdateValueExpression to allow for expression based updates.J. Ritchie Carroll committed 9 years agob3d39ba
GSF.Core: Added requirement to set evaluation order when using "this" keywords in DefaultValueExpressionAttribute.J. Ritchie Carroll committed 9 years ago6918d4a
GSF.Core: (1) Added "EvaluationOrderAttribute" so that custom ordering can happen when evaluating default value expressions, (2) added "Cached" property to DefaultValueExpressionAttribute so that costly expressions that do not change can be cached to prevent further evaluations, e.g.: [DefaultValueExpression("NotNull(Connection.ExecuteScalar('SELECT ID FROM SignalType WHERE Acronym=\\'CALC\\''), 10)", Cached = true)]J. Ritchie Carroll committed 9 years agof852134
GSF.Core: (1) Added DefaultValueExpressionParser and DefaultValueExpressionScopeBase so that default value expressions can be used easily in other places, (2) updated DefaultValueExpressionAttribute implementations that are used with TableOperation models to support use of "this" keyword for self-referencing field access (3) moved attributes into GSF.ComponentModel and GSF.ComponentModel.DataAnnotations - this will be a breaking change for some model implementations, (4) updated ConnectionStringParser to recognize DefaultValueExpressionAttributesJ. Ritchie Carroll committed 9 years ago24f271e