如何从表中获取旧数据，将其保存到文本框中，然后在文本框中添加新值？

Question

I'll show an example: Gridview:

                     ID Column 1 | Column 2 | Column 3 
edit,delete,select    1  Chris      22         England

If I press edit and edit a value let's say from column 1 : Chris to John I want to be added in a textbox each time something is changed, a new line like this:

ID:1 Column1 value "Chris" was changed to "John" Column2:22 Column3:England

So it's like a history of what was changed , so I can print them later . SQL Database 2008,c#,asp.net

Thanks, I really need help at this

Answer 1

You can have audit tables for that

http://www.codeproject.com/Articles/35933/Implementing-Audit-Trail-using-Trigger