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reading newvalues

Posted on 2008-11-03
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Last Modified: 2012-05-05
I have a gridview and I used the following code to read the new values when updating data

string test = e.NewValues[3].ToString();

i got the following error.

Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
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Question by:Mr_Shaw
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8 Comments
 
LVL 53

Expert Comment

by:Dhaest
ID: 22867602
How many columns does your gridview contains ? Remember that an index starts at 0 and not at 1

Perhaps this solves the problem: string test = e.NewValues[2].ToString();
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LVL 53

Expert Comment

by:Dhaest
ID: 22867619
if e.NewValues.Count >= 4 then
    string test = e.NewValues[3].ToString()
end if
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Author Comment

by:Mr_Shaw
ID: 22867634
15 column of text, 1 hidden column and a edit/delet button/colum.

A screen shot is below.
gridview.bmp
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LVL 53

Expert Comment

by:Dhaest
ID: 22867645
Did you try something like this:
e.NewValues["MyColumnName"].ToString()
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Author Comment

by:Mr_Shaw
ID: 22867720
I tried

string test = e.NewValues["record_name"].ToString();

and got an error saying 'Object reference not set to an instance of an object.'

i ran a test to see how many columns the code thinks is present. I used

e.NewValues.Count

My result equaled 0

Therefore string test = e.NewValues[3].ToString() would never work. I am really stuck on this one!

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LVL 53

Accepted Solution

by:
Dhaest earned 500 total points
ID: 22867749
in what event are you trying to capture your newvalues ?

Creating Audit Functionality Using ASP.NET 2.0
http://www.codeproject.com/KB/applications/CreateAuditFunction.aspx
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Author Comment

by:Mr_Shaw
ID: 22867758
GridViewUpdateEventArgs
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Author Comment

by:Mr_Shaw
ID: 22868081
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