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See more: Gridview sqldatasource Errors , +
i have this gridview, and i use sqldatasource
 
this is my select command
 
    SELECT Date.dateAvailable FROM LessonDate INNER JOIN Date ON LessonDate.dateID = Date.dateID WHERE (LessonDate.lessonID = @lessonID)
however when i want to update the dateAvailable column
 
  UPDATE       Date
    SET                dateAvailable = @dateAvailable
    FROM            Date INNER JOIN
                             LessonDate ON Date.dateID = LessonDate.dateID
    WHERE        (LesssonDate.dateID = @LessonDateID)
 
however it when i click on excute query it give me error conversion failed when converting date and/or time from character string
 
so what wrong?
Posted 31-Jan-12 1:22am

1 solution

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Solution 1

@LessonDateID is probably of varchar type.
 
Try using CAST or CONVERT and convert[^] this varchar to DateTime.
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Comments
cutexxbaby at 31-Jan-12 6:35am
   
can you show me how?
Abhinav S at 31-Jan-12 6:38am
   
Try convert(datetime, @LessonDateID).
cutexxbaby at 31-Jan-12 6:40am
   
you mean the LessonDateID not the dateAvailable
Abhinav S at 31-Jan-12 6:45am
   
Try both.

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