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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.
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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