c# - 我正在创建 CRUD 函数，当我单击“删除”按钮时不断收到错误消息，我的 SQL 代码是否正确？

Question

//如果你点击一行，它将被删除

 string sqlStr = "DELETE from Members MemberID, FirstName, LastName, Phone, Mobile, Email, Address, Suburb, City, PostalCode, DateJoined;";
 sqlStr += "WHERE rowid=@Rowid;";

Answer 1

string sqlStr = "DELETE from Members WHERE rowid=@Rowid";

Answer 2

DELETE 操作的语法不需要包含列名。

DELETE FROM <table_name> WHERE <condition>

在你的情况下，

string sqlStr = "DELETE from Members WHERE rowid=@Rowid";

我假设您已经@Rowid声明并指定为SqlParameter

Answer 3

根据您的代码，您应该这样做：

string sqlStr = "DELETE from Members";
 sqlStr += " WHERE rowid=@Rowid;";

Answer 4

我认为您应该删除;第一行的 at 和。并删除这些字段名称。
只需使用

"delete from members where rowid=@Rowid"