internal void SupplyValues(Report rpt, out string[] displayValues, out object[] dataValues)
{
displayValues = null;
dataValues = null;
Rows rows = _ds.Query.GetMyData(rpt);
if (rows == null) // do we already have data?
{
// TODO: this is wasteful; likely to reretrieve the data again when report run with parameters
// should mark a dataset as only having one retrieval???
bool lConnect = _ds.Query.DataSourceDefn.IsConnected(rpt);
if (!lConnect)
{
_ds.Query.DataSourceDefn.ConnectDataSource(rpt); // connect; since not already connected
}
_ds.GetData(rpt); // get the data
if (!lConnect) // if we connected; then
{
_ds.Query.DataSourceDefn.CleanUp(rpt); // we cleanup
}
rows = _ds.Query.GetMyData(rpt);
if (rows == null) // any data now?
{
return; // no out of luck
}
}
displayValues = new string[rows.Data.Count];
dataValues = new object[displayValues.Length];
int index = 0;
object o;
foreach (Row r in rows.Data)
{
dataValues[index] = r.Data[_vField.ColumnNumber];
o = r.Data[_lField.ColumnNumber];
if (o == null || o == DBNull.Value)
{
displayValues[index] = "";
}
else
{
displayValues[index] = o.ToString();
}
index++;
}
}
