ASP.NET (VS2013) error message "Additional information: syntax error near 'form'."

1. Problem situation:

Error message:

Code content:

2. Problem analysis:

According to the prompt that there is a grammatical error near "form", let's look for the place where the form appears and find that the only place is

At this time, I realized that it was because I made a careless typo: I mistyped "from" as "form"

3. Solution:

Bundle

string strs1 = "select * form table1";

changed to

string strs1 = "select * from table1";