private FilterExpressionOrOperatorNode CreateFilterExpressionForGroup(int startIndex, int endIndex)
{
Debug.Assert(this.filterRulePanelItems.Count > 0, "greater than 0");
Debug.Assert(startIndex >= 0, "greater than or equal to 0");
Debug.Assert(this.filterRulePanelItems.Count >= endIndex, "greater than or equal to endIndex");
FilterExpressionOrOperatorNode groupNode = new FilterExpressionOrOperatorNode();
for (int i = startIndex; i < endIndex; i++)
{
FilterRule rule = this.filterRulePanelItems[i].Rule;
if (rule.IsValid)
{
groupNode.Children.Add(new FilterExpressionOperandNode(rule.DeepCopy()));
}
}
return(groupNode);
}
private FilterExpressionNode CreateFilterExpression()
{
List <FilterExpressionNode> groupNodes = new List <FilterExpressionNode>();
for (int i = 0; i < this.filterRulePanelItems.Count;)
{
int endIndex = this.GetExclusiveEndIndexForGroupStartingAt(i);
FilterExpressionOrOperatorNode operatorOrNode = this.CreateFilterExpressionForGroup(i, endIndex);
if (operatorOrNode.Children.Count > 0)
{
groupNodes.Add(operatorOrNode);
}
i = endIndex;
}
if (groupNodes.Count == 0)
{
return(null);
}
return(new FilterExpressionAndOperatorNode(groupNodes));
}
private FilterExpressionOrOperatorNode CreateFilterExpressionForGroup(int startIndex, int endIndex)
{
Debug.Assert(this.filterRulePanelItems.Count > 0);
Debug.Assert(startIndex >= 0);
Debug.Assert(this.filterRulePanelItems.Count >= endIndex);
FilterExpressionOrOperatorNode groupNode = new FilterExpressionOrOperatorNode();
for (int i = startIndex; i < endIndex; i++)
{
FilterRule rule = this.filterRulePanelItems[i].Rule;
if (rule.IsValid)
{
groupNode.Children.Add(new FilterExpressionOperandNode(rule.DeepCopy()));
}
}
return groupNode;
}
