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How do I leave a field unchanged when updating a row in a Gridview

Posted on 2010-01-06
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Last Modified: 2012-05-08
The gridview I'm using has 3 fields that can be updated. There is a Priority field that will be set to a different value if the user enters a close date. If the close date isn't enetered, the Priority should be unchanged.
What's happening now is that if I enter some notes and click update, the Priority gets set to null instead of retaining its original value.
Is there a way to keep the old value if there is no new value? I'm also using a sqldatasource.
Thanks
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Question by:lakhi
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LVL 96

Expert Comment

by:Bob Learned
ID: 26191565
You might be able to work around this by dynamically changing the SqlDataSource.UpdateCommand, based on whether you have a close date or not.
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Author Comment

by:lakhi
ID: 26192062
Is there an example of this somewhere? It would really be helpful.
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Accepted Solution

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Bob Learned earned 2000 total points
ID: 26192126
You need to figure out when you want to do this, but it is as easy as this:

C# example:

this.SqlDataSource1.UpdateCommand = string.Format("UPDATE Employee SET DateHired = '{0}' ",
     DateTime.Now.ToShortDateString());
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Author Closing Comment

by:lakhi
ID: 31673473
Thanks! That's just what I needed
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