List<QueryParameter> _Items; // list of QueryParameter
#endregion Fields
#region Constructors
internal QueryParameters(ReportDefn r, ReportLink p, XmlNode xNode)
: base(r, p)
{
_ContainsArray = false;
QueryParameter q;
_Items = new List<QueryParameter>();
// Loop thru all the child nodes
foreach(XmlNode xNodeLoop in xNode.ChildNodes)
{
if (xNodeLoop.NodeType != XmlNodeType.Element)
continue;
switch (xNodeLoop.Name)
{
case "QueryParameter":
q = new QueryParameter(r, this, xNodeLoop);
break;
default:
q=null; // don't know what this is
// don't know this element - log it
OwnerReport.rl.LogError(4, "Unknown QueryParameters element '" + xNodeLoop.Name + "' ignored.");
break;
}
if (q != null)
_Items.Add(q);
}
if (_Items.Count == 0)
OwnerReport.rl.LogError(8, "For QueryParameters at least one QueryParameter is required.");
else
_Items.TrimExcess();
}
private string ParameterValue(Report rpt, QueryParameter qp)
{
if (!qp.IsArray)
{
// handle non-array
string svalue = qp.Value.EvaluateString(rpt, null);
if (svalue == null)
svalue = "null";
else switch (qp.Value.Expr.GetTypeCode())
{
case TypeCode.Char:
case TypeCode.DateTime:
case TypeCode.String:
// need to double up on "'" and then surround by '
svalue = svalue.Replace("'", "''");
svalue = "'" + svalue + "'";
break;
}
return svalue;
}
StringBuilder sb = new StringBuilder();
ArrayList ar = qp.Value.Evaluate(rpt, null) as ArrayList;
if (ar == null)
return null;
bool bFirst = true;
foreach (object v in ar)
{
if (!bFirst)
sb.Append(", ");
if (v == null)
{
sb.Append("null");
}
else
{
string sv = v.ToString();
if (v is string || v is char || v is DateTime)
{
// need to double up on "'" and then surround by '
sv = sv.Replace("'", "''");
sb.Append("'");
sb.Append(sv);
sb.Append("'");
}
else
sb.Append(sv);
}
bFirst = false;
}
return sb.ToString();
}
