FilterValues _FilterValues; // The values to compare to the FilterExpression.
#endregion Fields
#region Constructors
internal Filter(ReportDefn r, ReportLink p, XmlNode xNode)
: base(r, p)
{
_FilterExpression=null;
_FilterOperator=FilterOperatorEnum.Unknown;
_FilterValues=null;
// Loop thru all the child nodes
foreach(XmlNode xNodeLoop in xNode.ChildNodes)
{
if (xNodeLoop.NodeType != XmlNodeType.Element)
continue;
switch (xNodeLoop.Name)
{
case "FilterExpression":
_FilterExpression = new Expression(r, this, xNodeLoop, ExpressionType.Variant);
break;
case "Operator":
_FilterOperator = RDL.FilterOperator.GetStyle(xNodeLoop.InnerText);
if (_FilterOperator == FilterOperatorEnum.Unknown)
OwnerReport.rl.LogError(8, "Unknown Filter operator '" + xNodeLoop.InnerText + "'.");
break;
case "FilterValues":
_FilterValues = new FilterValues(r, this, xNodeLoop);
break;
default:
// don't know this element - log it
OwnerReport.rl.LogError(4, "Unknown Filter element '" + xNodeLoop.Name + "' ignored.");
break;
}
}
if (_FilterExpression == null)
OwnerReport.rl.LogError(8, "Filter requires the FilterExpression element.");
if (_FilterValues == null)
{
OwnerReport.rl.LogError(8, "Filter requires the FilterValues element.");
return; // some of the filter operator checks require values
}
_FilterOperatorSingleRow = true;
switch (_FilterOperator)
{
case FilterOperatorEnum.Like:
case FilterOperatorEnum.Equal:
case FilterOperatorEnum.NotEqual:
case FilterOperatorEnum.GreaterThan:
case FilterOperatorEnum.GreaterThanOrEqual:
case FilterOperatorEnum.LessThan:
case FilterOperatorEnum.LessThanOrEqual:
if (_FilterValues.Items.Count != 1)
OwnerReport.rl.LogError(8, "Filter Operator requires exactly 1 FilterValue.");
break;
case FilterOperatorEnum.TopN:
case FilterOperatorEnum.BottomN:
case FilterOperatorEnum.TopPercent:
case FilterOperatorEnum.BottomPercent:
_FilterOperatorSingleRow = false;
if (_FilterValues.Items.Count != 1)
OwnerReport.rl.LogError(8, "Filter Operator requires exactly 1 FilterValue.");
break;
case FilterOperatorEnum.In:
break;
case FilterOperatorEnum.Between:
if (_FilterValues.Items.Count != 2)
OwnerReport.rl.LogError(8, "Filter Operator Between requires exactly 2 FilterValues.");
break;
default:
OwnerReport.rl.LogError(8, "Valid Filter operator must be specified.");
break;
}
}
bool _FilterOperatorSingleRow; // false for Top/Bottom N and Percent; otherwise true
internal Filter(ReportDefn r, ReportLink p, XmlNode xNode) : base(r, p)
{
_FilterExpression = null;
_FilterOperator = FilterOperatorEnum.Unknown;
_FilterValues = null;
// Loop thru all the child nodes
foreach (XmlNode xNodeLoop in xNode.ChildNodes)
{
if (xNodeLoop.NodeType != XmlNodeType.Element)
{
continue;
}
switch (xNodeLoop.Name)
{
case "FilterExpression":
_FilterExpression = new Expression(r, this, xNodeLoop, ExpressionType.Variant);
break;
case "Operator":
_FilterOperator = RDL.FilterOperator.GetStyle(xNodeLoop.InnerText);
if (_FilterOperator == FilterOperatorEnum.Unknown)
{
OwnerReport.rl.LogError(8, "Unknown Filter operator '" + xNodeLoop.InnerText + "'.");
}
break;
case "FilterValues":
_FilterValues = new FilterValues(r, this, xNodeLoop);
break;
default:
// don't know this element - log it
OwnerReport.rl.LogError(4, "Unknown Filter element '" + xNodeLoop.Name + "' ignored.");
break;
}
}
if (_FilterExpression == null)
{
OwnerReport.rl.LogError(8, "Filter requires the FilterExpression element.");
}
if (_FilterValues == null)
{
OwnerReport.rl.LogError(8, "Filter requires the FilterValues element.");
return; // some of the filter operator checks require values
}
_FilterOperatorSingleRow = true;
switch (_FilterOperator)
{
case FilterOperatorEnum.Like:
case FilterOperatorEnum.Equal:
case FilterOperatorEnum.NotEqual:
case FilterOperatorEnum.GreaterThan:
case FilterOperatorEnum.GreaterThanOrEqual:
case FilterOperatorEnum.LessThan:
case FilterOperatorEnum.LessThanOrEqual:
if (_FilterValues.Items.Count != 1)
{
OwnerReport.rl.LogError(8, "Filter Operator requires exactly 1 FilterValue.");
}
break;
case FilterOperatorEnum.TopN:
case FilterOperatorEnum.BottomN:
case FilterOperatorEnum.TopPercent:
case FilterOperatorEnum.BottomPercent:
_FilterOperatorSingleRow = false;
if (_FilterValues.Items.Count != 1)
{
OwnerReport.rl.LogError(8, "Filter Operator requires exactly 1 FilterValue.");
}
break;
case FilterOperatorEnum.In:
break;
case FilterOperatorEnum.Between:
if (_FilterValues.Items.Count != 2)
{
OwnerReport.rl.LogError(8, "Filter Operator Between requires exactly 2 FilterValues.");
}
break;
default:
OwnerReport.rl.LogError(8, "Valid Filter operator must be specified.");
break;
}
}
