/// <summary>
/// Initializes a new instance of <see cref="SearchTextParseResult"/> with the specified <see cref="FilterRule"/>.
/// </summary>
/// <param name="rule">The rule that resulted from parsing the search text.</param>
/// <exception cref="ArgumentNullException">The specified value is a null reference.</exception>
public SearchTextParseResult(FilterRule rule)
{
if (rule == null)
{
throw new ArgumentNullException("rule");
}
this.FilterRule = rule;
}
/// <summary>
/// Initializes a new instance of the FilterExpressionOperandNode
/// class.
/// </summary>
/// <param name="rule">
/// The FilterRule to hold for evaluation.
/// </param>
public FilterExpressionOperandNode(FilterRule rule)
{
if (null == rule)
{
throw new ArgumentNullException("rule");
}
this.Rule = rule;
}
/// <summary>
/// Called when the SelectedValue within AvailableRules changes.
/// </summary>
/// <param name="oldValue">
/// The old FilterRule.
/// </param>
/// <param name="newValue">
/// The new FilterRule.
/// </param>
protected void OnSelectedValueChanged(FilterRule oldValue, FilterRule newValue)
{
FilterRuleCustomizationFactory.FactoryInstance.ClearValues(newValue);
FilterRuleCustomizationFactory.FactoryInstance.TransferValues(oldValue, newValue);
FilterRuleCustomizationFactory.FactoryInstance.ClearValues(oldValue);
newValue.EvaluationResultInvalidated += new EventHandler(this.SelectedValue_EvaluationResultInvalidated);
oldValue.EvaluationResultInvalidated -= new EventHandler(this.SelectedValue_EvaluationResultInvalidated);
this.NotifyEvaluationResultInvalidated();
}
/// <summary>
/// Initializes a new instance of the FilterRulePanelItem class.
/// </summary>
/// <param name="rule">
/// The FilterRule to store in this FilterRulePanelItem.
/// </param>
/// <param name="groupId">
/// A string which identifies which group this
/// item belongs to.
/// </param>
public FilterRulePanelItem(FilterRule rule, string groupId)
{
if (null == rule)
{
throw new ArgumentNullException("rule");
}
if (String.IsNullOrEmpty(groupId))
{
throw new ArgumentNullException("groupId");
}
this.Rule = rule;
this.GroupId = groupId;
}
/// <summary>
/// Adds the specified rule, using the rule's display name as its group name.
/// </summary>
/// <param name="rule">The rule to add.</param>
/// <exception cref="ArgumentNullException">The specified value is a null reference.</exception>
public void AddRule(FilterRule rule)
{
if (rule == null)
{
throw new ArgumentNullException("rule");
}
this.AddFilterRulePicker.ShortcutFilterRules.Add(new AddFilterRulePickerItem(new FilterRulePanelItem(rule, rule.DisplayName)));
}
/// <summary> /// Clears the values from the filter rule. /// </summary> /// <param name="rule"> /// The rule to clear. /// </param> public abstract void ClearValues(FilterRule rule);
/// <summary> /// Transfers the values from the old rule into the new rule. /// </summary> /// <param name="oldRule"> /// The old filter rule. /// </param> /// <param name="newRule"> /// The new filter rule. /// </param> public abstract void TransferValues(FilterRule oldRule, FilterRule newRule);
private bool TryTransferValuesAsSingleValueComparableValueFilterRule(FilterRule oldRule, FilterRule newRule)
{
Debug.Assert(oldRule != null && newRule != null, "oldrule and newrule are not null");
bool areCorrectType = this.IsSingleValueComparableValueFilterRule(oldRule) && this.IsSingleValueComparableValueFilterRule(newRule);
if (!areCorrectType)
{
return(false);
}
object value = this.GetValueFromValidatingValue(oldRule, "Value");
this.SetValueOnValidatingValue(newRule, "Value", value);
return(true);
}