我怎么能创建数据网格，但是在静脉中。有人可以帮帮我吗？ [英] How can I create datagrid, but in vein. Please can some one help me?

问题描述

 con.ExecuteINSERT INTO BOOK（BookID，BookName，Author，MemberID）VALUES（& txtBookID&，& txtBookN&'，'& txtAuthor &'，& txtMID&）

我正在创建图书馆管理系统，我希望将数据嵌入到datagrid中，但在上面提到的代码中得到错误。

有人可以帮我这个吗？



我尝试了什么：



我想在gridview中显示该数据，但不能。

解决方案

 con .Execute   INSERT INTO BOOK（BookID，BookName，Author，MemberID）VALUES（& txtBookID& ;  ，'& txtBookN&  '，'& txtAuthor&  '，& txtMID&  ） 

不是你问题的解决方案，而是你遇到的另一个问题。

永远不要通过连接字符串来构建SQL查询。迟早，您将使用用户输入来执行此操作，这会打开一个名为SQL注入的漏洞，这对您的数据库很容易并且容易出错。

名称中的单引号你的程序崩溃。如果用户输入像Brian O'Conner这样的名称可能会使您的应用程序崩溃，那么这是一个SQL注入漏洞，崩溃是最少的问题，恶意用户输入，并且它被提升为具有所有凭据的SQL命令。

SQL注入 - 维基百科 [ ^ ]

SQL注入 [ ^ ]

按示例进行SQL注入攻击 [ ^ ]

PHP：SQL注入 - 手册 [ ^ ]

SQL注入预防备忘单 - OWASP [ ^ ]

con.Execute "INSERT INTO BOOK (BookID, BookName, Author, MemberID) VALUES (" & txtBookID & ", '" & txtBookN & "','" & txtAuthor & "', " & txtMID & ")"

I am creating Library Management System, from that I wanna inset data into datagrid, but getting error on the code mentioned above.
Can some one help me to this?

What I have tried:

I want to show that data in gridview, but can't.

解决方案

con.Execute "INSERT INTO BOOK (BookID, BookName, Author, MemberID) VALUES (" & txtBookID & ", '" & txtBookN & "','" & txtAuthor & "', " & txtMID & ")"

Not a solution to your question, but another problem you have.
Never build an SQL query by concatenating strings. Sooner or later, you will do it with user inputs, and this opens door to a vulnerability named "SQL injection", it is dangerous for your database and error prone.
A single quote in a name and your program crash. If a user input a name like "Brian O'Conner" can crash your app, it is an SQL injection vulnerability, and the crash is the least of the problems, a malicious user input and it is promoted to SQL commands with all credentials.
SQL injection - Wikipedia[^]
SQL Injection[^]
SQL Injection Attacks by Example[^]
PHP: SQL Injection - Manual[^]
SQL Injection Prevention Cheat Sheet - OWASP[^]

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