Solved

Index was out of range.  DataKeys(GridView1.EditIndex).Value

Posted on 2010-11-09
5
407 Views
Last Modified: 2012-05-10
In the VB behind a GridView I've got the DataBound method below.

The .aspx page loads as long as a row happens to already be in Edit mode, but if I click Cancel or Save, I get:
Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
on row 2 below.
It seems that the "EditIndex" is Nothing when it's not in Edit mode and throwing the out of range error.  How can I avoid the error when the GridView is not in Edit mode?
Protected Sub GridView1_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.DataBound

    Dim iReqID As Integer = CType(GridView1.DataKeys(GridView1.EditIndex).Value, Integer)        'CInt(GridView1.DataKeys(GridView1.EditIndex).Value)

    Dim iModifiedBy As String = iUserName

    Call SendModifiedByToRequisition(iModifiedBy, iReqID)

End Sub

Open in new window

0
Comment
Question by:megnin
5 Comments
 
LVL 20

Assisted Solution

by:Daniel Van Der Werken
Daniel Van Der Werken earned 100 total points
ID: 34093227
Can you put the code that executes in an "if" statement?

I'm not a VB.NET person, but it would be something like this:

if GridView1.EditIndex != Nothing then
   Dim iReqID = ...etc.
   Dim iModifiedBy = etc.
   Call etc..
Else -- don't do anything..

0
 
LVL 52

Accepted Solution

by:
Carl Tawn earned 300 total points
ID: 34093233
Actualy EditIndex should be -1 if not in Edit mode, so you could try:
Protected Sub GridView1_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.DataBound

    If GridView1.EditIndex <> -1 Then

        Dim iReqID As Integer = CType(GridView1.DataKeys(GridView1.EditIndex).Value, Integer)        'CInt(GridView1.DataKeys(GridView1.EditIndex).Value)

       Dim iModifiedBy As String = iUserName

       Call SendModifiedByToRequisition(iModifiedBy, iReqID)

    End If

End Sub

 

Open in new window

0
 
LVL 1

Author Comment

by:megnin
ID: 34093255
Oh, that's right.  The EditIndex is -1 when it's in Edit Mode.  
0
 
LVL 32

Assisted Solution

by:Erick37
Erick37 earned 100 total points
ID: 34093284
If GridView1.EditIndex IsNot Nothing AndAlso GridView1.EditIndex > -1 Then
...
0
 
LVL 1

Author Closing Comment

by:megnin
ID: 34093310
Thank you, all thee.  Carl's solution was exactly right.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction This article shows how to use the open source plupload control to upload multiple images. The images are resized on the client side before uploading and the upload is done in chunks. Background I had to provide a way for user…
Problem Hi all,    While many today have fast Internet connection, there are many still who do not, or are connecting through devices with a slower connect, so light web pages and fast load times are still popular.    If your ASP.NET page …
When you create an app prototype with Adobe XD, you can insert system screens -- sharing or Control Center, for example -- with just a few clicks. This video shows you how. You can take the full course on Experts Exchange at http://bit.ly/XDcourse.
This video explains how to create simple products associated to Magento configurable product and offers fast way of their generation with Store Manager for Magento tool.

914 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now