CancelCommand Event Handler Not Firing

2 Mar 2005 9:11 PM

Scott M.

I have an asp:DataGrid control with EnableViewState=False. I am calling
DataBind on both the non-postback and the postback. I am persisting the
state of the grid myself and restoring the state (selectedItem, editItem,
sortCommand, etc.). Everything is working just fine EXCEPT the
CancelCommand event is not firing. All the other events ARE firing.

Here is the CancelCommand:

Private Sub dg_CancelCommand(ByVal source As Object, ByVal e As
System.Web.UI.WebControls.DataGridCommandEventArgs) Handles dg.CancelCommand
    viewstate.Add("editItem", -1)
    dg.EditItemIndex = -1
    RestoreState()
End Sub

Private Sub RestoreState()
    'Call this method in each DataGrid event handler
    'to restore the new grid back to its previous state
    If Not IsNothing(viewstate.Item("editItem")) Then
        dg.EditItemIndex = CType(viewstate.Item("editItem"), Integer)
    End If
    If Not IsNothing(viewstate.Item("currentPage")) Then
        dg.CurrentPageIndex = CType(viewstate.Item("currentPage"), Integer)
    End If
    If Not IsNothing(viewstate.Item("currentSelection")) Then
        dg.SelectedIndex = CType(viewstate.Item("currentSelection"),
Integer)
    End If
    If Not IsNothing(viewstate.Item("currentSort")) Then
        Dim dv As New DataView(ds.Tables(0))
        dv.Sort = CType(viewstate.Item("currentSort"), String)
        dg.DataSource = dv
    End If
    dg.DataBind()
End Sub

4 Mar 2005 7:33 PM

Ken Charles MCSD

Hi,

This is obvious but have you confirmed that your event handler is set
up properly in InitializeComponent?

Ken

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"=?Utf-8?B?U2NvdHQgTS4=?=" <s-mar@nospam.nospam> wrote in message news:<088697EC-2183-4710-81DF-FB5937FE4E6C@microsoft.com>...
> I have an asp:DataGrid control with EnableViewState=False. I am calling
> DataBind on both the non-postback and the postback. I am persisting the
> state of the grid myself and restoring the state (selectedItem, editItem,
> sortCommand, etc.). Everything is working just fine EXCEPT the
> CancelCommand event is not firing. All the other events ARE firing.
>
> Here is the CancelCommand:
>
> Private Sub dg_CancelCommand(ByVal source As Object, ByVal e As
> System.Web.UI.WebControls.DataGridCommandEventArgs) Handles dg.CancelCommand
>     viewstate.Add("editItem", -1)
>     dg.EditItemIndex = -1
>     RestoreState()
> End Sub
>
> Private Sub RestoreState()
>     'Call this method in each DataGrid event handler
>     'to restore the new grid back to its previous state
>     If Not IsNothing(viewstate.Item("editItem")) Then
>         dg.EditItemIndex = CType(viewstate.Item("editItem"), Integer)
>     End If
>     If Not IsNothing(viewstate.Item("currentPage")) Then
>         dg.CurrentPageIndex = CType(viewstate.Item("currentPage"), Integer)
>     End If
>     If Not IsNothing(viewstate.Item("currentSelection")) Then
>         dg.SelectedIndex = CType(viewstate.Item("currentSelection"),
> Integer)
>     End If
>     If Not IsNothing(viewstate.Item("currentSort")) Then
>         Dim dv As New DataView(ds.Tables(0))
>         dv.Sort = CType(viewstate.Item("currentSort"), String)
>         dg.DataSource = dv
>     End If
>     dg.DataBind()
> End Sub

4 Mar 2005 8:13 PM

Scott M.

Forgive me, but I'm not sure I know what you mean. What is there to set up?
I didn't have to set anything up to get all the other events to fire
correctly (and all the other events do fire).

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"Ken Charles MCSD" <kenneth.w.char***@gmail.com> wrote in message
news:6302a08f.0503041133.7a720156@posting.google.com...
> Hi,
>
> This is obvious but have you confirmed that your event handler is set
> up properly in InitializeComponent?
>
> Ken
>
>
> "=?Utf-8?B?U2NvdHQgTS4=?=" <s-mar@nospam.nospam> wrote in message
> news:<088697EC-2183-4710-81DF-FB5937FE4E6C@microsoft.com>...
>> I have an asp:DataGrid control with EnableViewState=False. I am calling
>> DataBind on both the non-postback and the postback. I am persisting the
>> state of the grid myself and restoring the state (selectedItem, editItem,
>> sortCommand, etc.). Everything is working just fine EXCEPT the
>> CancelCommand event is not firing. All the other events ARE firing.
>>
>> Here is the CancelCommand:
>>
>> Private Sub dg_CancelCommand(ByVal source As Object, ByVal e As
>> System.Web.UI.WebControls.DataGridCommandEventArgs) Handles
>> dg.CancelCommand
>>     viewstate.Add("editItem", -1)
>>     dg.EditItemIndex = -1
>>     RestoreState()
>> End Sub
>>
>> Private Sub RestoreState()
>>     'Call this method in each DataGrid event handler
>>     'to restore the new grid back to its previous state
>>     If Not IsNothing(viewstate.Item("editItem")) Then
>>         dg.EditItemIndex = CType(viewstate.Item("editItem"), Integer)
>>     End If
>>     If Not IsNothing(viewstate.Item("currentPage")) Then
>>         dg.CurrentPageIndex = CType(viewstate.Item("currentPage"),
>> Integer)
>>     End If
>>     If Not IsNothing(viewstate.Item("currentSelection")) Then
>>         dg.SelectedIndex = CType(viewstate.Item("currentSelection"),
>> Integer)
>>     End If
>>     If Not IsNothing(viewstate.Item("currentSort")) Then
>>         Dim dv As New DataView(ds.Tables(0))
>>         dv.Sort = CType(viewstate.Item("currentSort"), String)
>>         dg.DataSource = dv
>>     End If
>>     dg.DataBind()
>> End Sub

5 Mar 2005 12:51 AM

awbacker

I think someone has auto-c#-answer turned on. Unless you need to
explicitly bind (or even can) them in vB.

5 Mar 2005 1:28 AM

Scott M.

You do not need to explicitly bind an eventhandler to it's object in VB.NET
(unless we are talking about custom objects - which we aren't).

<awbac***@gmail.com> wrote in message
Show quoteHide quote

news:1109983878.452251.148030@o13g2000cwo.googlegroups.com...
>I think someone has auto-c#-answer turned on. Unless you need to
> explicitly bind (or even can) them in vB.
>