Avoid Sending Unchanged Data Back to the Server For Updating

Avoid Sending Unchanged Data Back to the Server For Updating

One of the best ways to improve performance in a distributed application is to avoid sending unchanged data back to the server for updating. I use the following strategy to determine if a disconnected recordset needs to be sent back to the server. Declare module level string and Boolean variables:

 Private sRecord as StringPrivate bDirty as Boolean

When you first land on a new record, read it into the variable by calling SetRecord rsMyRecordset. SetRecord reads only the current record as shown:

 Private Function SetRecord(rs As ADODB.Recordset) As Boolean    '   Saves entire record as a single value for later comparison    Dim i As Integer sRecord =

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