将内部联接更新语句添加到SQLdatasource

Question

I've got a Gridview connected to an sqldatasource connected to sqlserver, I have added the Select statement to be this, and it works like i want it.

SELECT S.[ID], S.[Survey_Name], S.[Start_Date], S.[End_Date], C.[Category_Name], S.[Username], S.[Picture],S.[Audience] FROM [Survey] S
Inner Join
Category C On S.Category_ID = C.ID

I now need to add an Update statement to just update the fields above when the user tries to edit the gridview, I tried this:

UPDATE 
         Survey S
INNER JOIN
         Category C
                  On S.Category_ID = C.ID
 SET
 S.Survey_Name=@Survey_Name,
S.Start_Date=@Start_Date,
S.End_Date = @End_Date, 
C.Category_Name =@Category_Name,
S.Username = @Username,
S.Audience=@Audience 

Where
 ID=@ID

But it just wont work, and keeps giving me errors like Invalid syntax "S", or Invalid Syntax "Inner"...

Answer 1

Your update statement is incorrect:

UPDATE Survey
 SET
 Survey.Survey_Name=@Survey_Name,
 Survey.Start_Date=@Start_Date,
 Survey.End_Date = @End_Date, 
 C.Category_Name = @Category_Name,
 Survey.Username = @Username,
 Survey.Audience=@Audience 
FROM Survey S
INNER JOIN Category C 
 On S.Category_ID = C.ID
Where
 S.ID=@ID

EDIT

UPDATE Survey
 SET
 Survey_Name=@Survey_Name,
 Start_Date=@Start_Date,
 End_Date = @End_Date, 
 Category_ID =C.ID,
 Username = @Username,
 Audience=@Audience 
FROM Survey S
INNER JOIN Category C 
 On C.Category_Name = @Category_Name
WHERE
 S.ID=@ID