/// <summary>
/// 总计
/// </summary>
/// <param name="expression"></param>
/// <returns></returns>
public SqlExpressionCore <T> Sum(Expression <Func <T, object> > expression)
{
sqlGenerate.Clear();
SqlExpressionProvider.Sum(expression, sqlGenerate);
return(this);
}
protected override SqlGenerate Sum(UnaryExpression expression, SqlGenerate sqlGenerate)
{
SqlExpressionProvider.Sum(expression.Operand, sqlGenerate);
return(sqlGenerate);
}
protected override SqlGenerate Sum(LambdaExpression expression, SqlGenerate sqlGenerate)
{
SqlExpressionProvider.Sum(expression.Body, sqlGenerate);
return(sqlGenerate);
}
