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How To Check Previous And Next Record Values

Hi all,

I wanted to check the previous and next record values.

For example:

sKey NextKey PreviousKey

1 2 Null
2 8 1
8 5 2
5 null 8

I wanted to check the value of NextKey of Prev record and Skey of Next record.

Any idea?


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How To Check Previous And Next Record Values
Hi all,

I wanted to check the previous and next record values.

For example:

sKey NextKey PreviousKey

1            2           Null
2            8            1
8            5            2
5           null          8

Ex : In the first record of the table, the NextKey is pointing to 2.
So the next record of Skey will be 2. The Next Key for this record is 8. Like wise the next record of this should have the Skey as 8.

Now I need to check whether the NextKey and SKey are correct for all rows.

For that I need to check the previous record of "Next key" and next record of "Skey".

Any idea?


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Here is the current code for the data source control.
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|EventInsider.mdf;Integrated Security=True;User Instance=True"
ProviderName="System.Data.SqlClient" SelectCommand="SELECT Events_Groups.GroupName, Events_Groups.GroupID FROM Events_GroupMembership INNER JOIN Events_Groups ON Events_GroupMembership.GroupID = Events_Groups.GroupID WHERE (Events_GroupMembership.UserID = @UserID)">
<asp:SessionParameter Name="UserID" SessionField="UserID" />
 But I have no idea what the code behind would be to check it on page_load.  If there is no way to particularly do this, do you have to do it per control?  Like dropdownbox's or gridviews?  I am just confused on how to check to make sure there is data to be displayed.

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