如何将在文本框中输入的文本与表格中的字段匹配? [英] How to match the text entered in a textbox with a field in a table?

问题描述

我在网络表单中有一个文本框.我必须检查在该文本框中输入的文本是否与表格中的字段相同，该怎么办?

I have one textbox in a webform. I have to check if the text entered in that textbox is same as in the field in a table, how can I do that?

推荐答案

您不能只比较两者吗字符串(插入文本框中的一个和从表中读取的一个)?
您指的是哪种桌子"?
:)

Cannot you just compare the two strings (the one inserted in the text box and the one read from the table)?
What kind of ''table'' are you referring to?
:)

如果按表表示数据库表，那么答案显然是SQL.从myTable中选择count(*)，其中myfield =''mytext''

当然，您应该在数据层中执行此操作，而不是通过字符串混搭来构建SQL.

If by table you mean database table, the answer is obviously SQL. select count(*) from myTable where myfield=''mytext''

Of course, you should do this in your data layer and not build your SQL by string mashing.

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