handling an event for a control embedded in a datalist

[wsyeager36]

I have a datagrid inside a datalist. The datalist shows parent info and the datagrid shows the child info for that parent. There is a checkbox on each row of the child datagrid. Also inside the datalist is a radiobuttonlist . When this radiobuttonlist is checked, I would like it to iterate thru each row on the child grid and either select or deselct the checkboxes (which are on each row of the child datagrid). In addition, the user can also check each of these checkboxes individually as well. btw, I made the columns that I need to access inside the datagrid template columns. For the rows that are checked, I want to save them to a dataset.

I created code below to do the above task:
Private Sub DataList1_Selec tedIndexChanged (ByVal sender As Object, ByVal e As System.EventArg s) Handles DataList1.Selec tedIndexChanged

'Capture the postback event from the radiobuttonlist

Dim rblConditions As RadioButtonList = DirectCast(Find Control("RadioB uttonList1"), RadioButtonList )

Dim dg2 As DataGrid = DirectCast(Find Control("DataGr id2"), DataGrid)

Dim chkCondition As CheckBox = DirectCast(Find Control("Condit ion"), CheckBox)

Dim lblLockNumber As Label = DirectCast(Find Control("LockNu mber"), Label)

Dim lblConditionDet ailID As Label = DirectCast(Find Control("Condit ionDetailID"), Label)

Dim lblLoanID As Label = DirectCast(Find Control("LoanID "), Label)

Dim i As Int16

If rblConditions.S electedIndex = YesNoIndex.YES Then

'check all the boxes in the child datagrid

For i = 0 To dg2.Items.Count - 1

chkCondition.Ch ecked = True

Next

Else

'uncheck all the boxes in the child datagrid

For i = 0 To dg2.Items.Count - 1

chkCondition.Ch ecked = False

Next

End If

For i = 0 To dg2.Items.Count - 1

If chkCondition.Ch ecked = True Then

Dim drSave As dsSaveCondition .dsSaveConditio nRow = DsSaveCondition 1.dsSaveConditi on.NewdsSaveCon ditionRow

drSave.Lock_Num ber = lblLockNumber.T ext

drSave.Conditio nDetailID = lblConditionDet ailID.Text

drSave.LoanID = lblLoanID.Text

DsSaveCondition 1.dsSaveConditi on.Rows.Add(drS ave)

End If

Next

If ViewState.Item( "DsSaveConditio n1") Is Nothing Then

DsSaveCondition 1.AcceptChanges ()

Else

DsSaveCondition 1 = DirectCast(View State.Item("DsS aveCondition1") , DataSet)

End If

ViewState.Item( "DsSaveConditio n1") = DsSaveCondition 1

End Sub


Since I won't be able to test this out until Monday, I'm wondering if the above code is "on target". I'm unsure of how to handle the postback event from the radiobuttonlist (autopostback is set to TRUE) which is inside the datalist as well as cycling thru the datagrid rows to check or uncheck the boxes.

Can someone please tell me if I need to do anything else?

Your help is greatly appreciated...

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[bill]

I know the datalist can respond to events from child
button controls via the ITEMCommand event, etc of the
Datalists ItemCommand event. But, can the datalist handle
events such as the one I have outlined in the previous
message, particularly selecting a child radiobutton
inside the datalist, posting the page back and responding
to which radiobutton was checked (inside the datalist)
and then programmaticall y selecting check boxes on a
child datagrid within the datalist.

I presently have the code to do this inside
the "DataList1_Sele ctedIndexChange d" event (as described
in my previous msg). If this is not the case, I would
then try to place the code inside an event that I would
set up in the HTML as follows for the radiobuttonlist :
OnSelectedIndex Changed="rblRad ioButtonList1_S electedIndexC
hanged"

I then would have an event in code-behind which will
handle this:
Protected WithEvents RadioButtonList 1 As RadioButtonList
..
..
..
Private Sub rblRadioButtonL ist1_SelectedIn dexChanged
(ByVal sender As Object, ByVal e As System.EventArg s)
Handles RadioButtonList 1.SelectedIndex Changed

Can someone please tell me if I'm target with this?

-----Original Message-----
I have a datagrid inside a datalist. The datalist shows parent info and the datagrid shows the child info for
that parent. There is a checkbox on each row of the child
datagrid. Also inside the datalist is a radiobuttonlist .
When this radiobuttonlist is checked, I would like it to
iterate thru each row on the child grid and either select
or deselct the checkboxes (which are on each row of the
child datagrid). In addition, the user can also check
each of these checkboxes individually as well. btw, I
made the columns that I need to access inside the
datagrid template columns. For the rows that are checked,
I want to save them to a dataset.
I created code below to do the above task:
Private Sub DataList1_Selec tedIndexChanged (ByVal sender As Object, ByVal e As System.EventArg s) Handles
DataList1.Selec tedIndexChanged
'Capture the postback event from the radiobuttonlist
Dim rblConditions As RadioButtonList = DirectCast (FindControl("R adioButtonList1 "), RadioButtonList )
Dim dg2 As DataGrid = DirectCast(Find Control ("DataGrid2" ), DataGrid)
Dim chkCondition As CheckBox = DirectCast (FindControl("C ondition"), CheckBox)
Dim lblLockNumber As Label = DirectCast (FindControl("L ockNumber"), Label)
Dim lblConditionDet ailID As Label = DirectCast (FindControl("C onditionDetailI D"), Label)
Dim lblLoanID As Label = DirectCast(Find Control ("LoanID"), Label)
Dim i As Int16

If rblConditions.S electedIndex = YesNoIndex.YES Then
'check all the boxes in the child datagrid

For i = 0 To dg2.Items.Count - 1

chkCondition.Ch ecked = True

Next

Else

'uncheck all the boxes in the child datagrid

For i = 0 To dg2.Items.Count - 1

chkCondition.Ch ecked = False

Next

End If

For i = 0 To dg2.Items.Count - 1

If chkCondition.Ch ecked = True Then

Dim drSave As dsSaveCondition .dsSaveConditio nRow =
DsSaveCondition 1.dsSaveConditi on.NewdsSaveCon ditionRow
drSave.Lock_Num ber = lblLockNumber.T ext

drSave.Conditio nDetailID = lblConditionDet ailID.Text
drSave.LoanID = lblLoanID.Text

DsSaveCondition 1.dsSaveConditi on.Rows.Add (drSave)
End If

Next

If ViewState.Item( "DsSaveConditio n1") Is Nothing Then
DsSaveCondition 1.AcceptChanges ()

Else

DsSaveCondition 1 = DirectCast(View State.Item ("DsSaveConditi on1"), DataSet)
End If

ViewState.Item( "DsSaveConditio n1") = DsSaveCondition 1
End Sub


Since I won't be able to test this out until Monday, I'm wondering if the above code is "on target". I'm unsure of
how to handle the postback event from the radiobuttonlist
(autopostback is set to TRUE) which is inside the
datalist as well as cycling thru the datagrid rows to
check or uncheck the boxes.
Can someone please tell me if I need to do anything else?
Your help is greatly appreciated...

************** *************** *************** ************* *************Sent via Fuzzy Software @ http://www.fuzzysoftware.com/
Comprehensiv e, categorised, searchable collection of links to ASP & ASP.NET resources....