protected override void CacheMetadata(CodeActivityMetadata metadata)
{
bool isRequired = false;
if (typeof(TOperand).GetTypeInfo().IsEnum)
{
metadata.AddValidationError(SR.TargetTypeCannotBeEnum(this.GetType().Name, this.DisplayName));
}
if (string.IsNullOrEmpty(this.PropertyName))
{
metadata.AddValidationError(SR.ActivityPropertyMustBeSet("PropertyName", this.DisplayName));
}
else
{
PropertyInfo propertyInfo = null;
Type operandType = typeof(TOperand);
propertyInfo = operandType.GetProperty(this.PropertyName);
if (propertyInfo == null)
{
metadata.AddValidationError(SR.MemberNotFound(this.PropertyName, typeof(TOperand).Name));
}
else
{
Fx.Assert(propertyInfo.GetAccessors().Length > 0, "Property should have at least 1 accessor.");
_isOperationFunctionStatic = propertyInfo.GetAccessors()[0].IsStatic;
isRequired = !_isOperationFunctionStatic;
ValidationError validationError;
if (!MemberExpressionHelper.TryGenerateLinqDelegate(this.PropertyName, false, _isOperationFunctionStatic, out _operationFunction, out validationError))
{
metadata.AddValidationError(validationError);
}
MethodInfo getMethod = propertyInfo.GetGetMethod();
MethodInfo setMethod = propertyInfo.GetSetMethod();
if ((getMethod != null && !getMethod.IsStatic) || (setMethod != null && !setMethod.IsStatic))
{
isRequired = true;
}
}
}
MemberExpressionHelper.AddOperandArgument(metadata, this.Operand, isRequired);
}
protected override void CacheMetadata(CodeActivityMetadata metadata)
{
bool isRequired = false;
if (typeof(TOperand).GetTypeInfo().IsEnum)
{
metadata.AddValidationError(SR.TargetTypeCannotBeEnum(this.GetType().Name, this.DisplayName));
}
if (string.IsNullOrEmpty(this.FieldName))
{
metadata.AddValidationError(SR.ActivityPropertyMustBeSet("FieldName", this.DisplayName));
}
else
{
FieldInfo fieldInfo = null;
Type operandType = typeof(TOperand);
fieldInfo = operandType.GetField(this.FieldName);
if (fieldInfo == null)
{
metadata.AddValidationError(SR.MemberNotFound(this.FieldName, typeof(TOperand).Name));
}
else
{
_isOperationFunctionStatic = fieldInfo.IsStatic;
isRequired = !_isOperationFunctionStatic;
ValidationError validationError;
if (!MemberExpressionHelper.TryGenerateLinqDelegate(this.FieldName, true, _isOperationFunctionStatic, out _operationFunction, out validationError))
{
metadata.AddValidationError(validationError);
}
}
}
MemberExpressionHelper.AddOperandArgument(metadata, this.Operand, isRequired);
}
