public static LogicExpression AllEqVarParam(this IEnumerable <IColumnExpression> cols)
{
IFilterExpression filter = null;
LogicExpression logic = null;
foreach (var col in cols)
{
if (filter == null)
{
filter = col.EqVarParam();
}
else
{
logic = filter.And(col.EqVarParam());
filter = logic;
}
//filter = filter == null ? col.EqVarParam() as IFilterExpression : filter.And(col.EqVarParam());
}
return(logic);
}
public static LogicExpression AllEq(this IEnumerable <IColumnExpression> cols, IEnumerable <IValueExpression> values)
{
IFilterExpression filter = null;
LogicExpression logic = null;
var em = values.GetEnumerator();
foreach (var col in cols)
{
em.MoveNext();
if (filter == null)
{
filter = col.Eq(em.Current);
}
else
{
logic = filter.And(col.Eq(em.Current));
filter = logic;
}
//filter = filter == null ? col.Eq(em.Current) as IFilterExpression : filter.And(col.Eq(em.Current));
}
return(logic);
}
public IRecordWhere And(IFilterExpression <string, object> expression)
{
filter = filter.And(expression);
return(this);
}