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reference gridview dataitem in rowediting event

Posted on 2008-06-18
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2,714 Views
Last Modified: 2013-11-07
Ok I have a gridview bound to a sql datasource, on of the fields it returns is a pipe delimited string.
I use a template control with a label in the item template that sends the string to a function that splits it and displays a ul.

now in the edit item template i have a checkbox list. When the user clicks the edit button, I want to reference the control and the dataitem, loop through it and select certain checkboxes.

I can reference the checkbox list fine, but how can i get the dataitem?
Or is there a better way to do this?
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Question by:Dustin Hopkins
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6 Comments
 
LVL 22

Expert Comment

by:prairiedog
ID: 21822089
>>>I want to reference the control and the dataitem,
Which control do you want to reference? The label?
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Author Comment

by:Dustin Hopkins
ID: 21826454
No i want to reference the checkboxlist, did that with no problem.

Its the dataitem thats giving me the problem, i tried using the eval.databinder method like you would use in the onrowdatabound event, but its throwing object reference not set to an instance of the object.
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LVL 22

Expert Comment

by:prairiedog
ID: 21826527
Can you post the code that you reference the checkboxlist and the code you use to get the dataitem?
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Accepted Solution

by:
Dustin Hopkins earned 0 total points
ID: 21828328
Ok, I got it working, I just had to add this to my datarowbound event
If e.Row.RowState = DataControlRowState.Edit Or _
 (e.Row.RowState = (DataControlRowState.Alternate Or DataControlRowState.Edit)) Then
 
            Dim cbl As CheckBoxList = CType(e.Row.FindControl("cblComp"), CheckBoxList)
            If DataBinder.Eval(e.Row.DataItem, "reqComp").ToString() <> "" Then
                Dim traincomp() As String = DataBinder.Eval(e.Row.DataItem, "ReqComp").ToString.Split("|")
                For Each s As String In traincomp
                    cbl.Items.FindByValue(s).Selected = True
                Next
            End If
        End If

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LVL 10

Expert Comment

by:Smart_Man
ID: 22590835
do you mean to access the gridview.rowediting event ?

http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.rowediting.aspx

waiting for your reply
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LVL 14

Author Comment

by:Dustin Hopkins
ID: 22592269
No, I was having problems referencing the dataitem associtated with a row during the rowediting event. I didn't realize that that was done in the rowdatabound event. As the row rebinds when switching to an editing view. Basically i was storing a string of data in a single db column, seperated by pipes. Such as "one|two|three". Then I took this and broke it down and used it to fill a checkboxlist. Thanks though.
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