Find And Edit Row In DataTable

Question

4.00/5 (1 vote)

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Is there a better way of doing this?

VB

For Each row In licenceTable.Rows
    If row("DriveKey") = selectedKey Then
        row("Location") = selectedLocal
    End If
Next

Posted 24-Nov-11 20:27pm

MrZedSven

Updated 24-Nov-11 20:33pm

Mehdi Gholam

v2

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Comments

LanFanNinja 25-Nov-11 3:01am

Well if you only want to modify one row in the loop once it is found and modified you may want to break out of the loop. i.e.
For Each row In licenceTable.Rows
If row("DriveKey") = selectedKey Then
row("Location") = selectedLocal
Exit For
End If
Next

MrZedSven 25-Nov-11 4:13am

Exit For will help.
I was wondering if you can change the value without looping though the whole
table.
Like SELECT INTO .... WHERE .... in SQL.
This runs on Form.Load and increases the start-up time quite a bit.

thatraja 25-Nov-11 3:19am

IMO this is almost fine one. Related link

2 solutions

Solution 3

I think this might be faster.

VB

licenceTable.DefaultView.RowFilter = "DriveKey = '" + selectedKey + "'"
For Each row In licenceTable.DefaultView
    row("Location") = selectedLocal
Next

Just remember to set the RowFilter to nothing before referencing the
default view again.

VB

licenceTable.DefaultView.RowFilter = Nothing

Posted 24-Nov-11 22:58pm

MrZedSven

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Eduard Lu · Accepted Answer · 2011-11-24T22:26:00

Solution 2

I believe this one is already good enough as per performace.

Goodluck on you. Please share us if you find a better one :)

Posted 24-Nov-11 22:26pm

Eduard Lu