// select the schema as the current table
bool SelectSchema()
{
_table = null;
var schema = GetSchema();
var scols = schema.Columns;
var fields = Enumerable.Range(0, scols.Count)
.Select(x => new CommonField {
Name = scols[x].ColumnName, CType = CommonConverter.TypeToCommon(scols[x].DataType)
}).ToArray();
Heading = CommonHeading.Create(fields);
return(true);
}