public Expression2SqlCore <T> Count(Expression <Func <T, object> > expression = null)
{
this._sqlPack.Clear();
this._sqlPack.IsSingleTable = true;
if (expression == null)
{
this._sqlPack.Sql.AppendFormat("select count(*) from {0}", typeof(T).Name);
}
else
{
Expression2SqlProvider.Count(expression.Body, this._sqlPack);
}
return(this);
}
protected override SqlPack Count(UnaryExpression expression, SqlPack sqlPack)
{
Expression2SqlProvider.Count(expression.Operand, sqlPack);
return(sqlPack);
}