打印选定的学生数据 [英] printing selected student data

问题描述

是否可以打印多个学生数据.我有50个成员要打印，但是我想同时打印30个成员.先打印10个，然后再打印10个，再打印10个.如果是这样，请告诉我如何...谢谢...


或者我可以使用一个功能来打印除这5个成员以外的所有成员.

请帮助我...谢谢:)

Is it possible to print multiple student data. I have 50 members to print, but i want to print 30 of them simultaneously. print first 10, then next another 10, then another 10.. if so, please tell me how... thanks...


or can I have a function that prints all members except this 5 members..??


please help me... thanks :)

推荐答案

使用SQL查询，您可以在SELECT查询中使用NOT IN或EXISTS/NOT EXISTS.

例如

Using SQL query you can use NOT IN or EXISTS/NOT EXISTS in your SELECT query.

Ex.

SELECT * FROM [tblStudent] WHERE StudentID NOT IN (1,2,3,4,5)
SELECT * FROM [tblResult] WHERE StudentID EXISTS (SELECT * FROM tblStudent WHERE Result='PASS')

>
在C#中，可以对数组使用String.Contains方法

In C#, you can use String.Contains method with array

string[] fruits = {"apple", "banana", "mango", "orange", "cherry", "grape"};
string fruit = "mango";
bool hasMango = fruits.Contains(fruit);

您也可以使用循环来检查值的存在.

Also you can use loops to check the existence of values.

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