DataGridViewComboBoxColumn change to automatically update DataGridView

#1

I have a standard DataGridView. One of the columns is a
DataGridViewComboBoxColumn. When I select one of the ComboBox items, I want
to trap the change and add additional columns based on the item selected in
the ComboBox. I've tried using CellValueChanged for the DataGridView column,
and a bunch of other events, but none of them is fired when the
DataGridViewComboBox value is changed. What event can I trap to make this
happen? Right now as I said, I am using CellValueChanged, but of course the
event doesn't fire until I click on another cell...

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#2

Most common the change index event of a combobox is used.

"tim8w via DotNetMonster.com" <u31412@uwe> wrote

Quote:

I have a standard DataGridView. One of the columns is a
DataGridViewComboBoxColumn. When I select one of the ComboBox items, I
want
to trap the change and add additional columns based on the item selected
in
the ComboBox. I've tried using CellValueChanged for the DataGridView
column,
and a bunch of other events, but none of them is fired when the
DataGridViewComboBox value is changed. What event can I trap to make this
happen? Right now as I said, I am using CellValueChanged, but of course
the
event doesn't fire until I click on another cell...

--
Message posted via DotNetMonster.com
http://www.dotnetmonster.com/Uwe/Forums.aspx/dotnet-vb-net/201001/1

#3

Cor Ligthert,
That won't work. Don't have access to it. Here's what I had to end up doing:

Code:

Private Sub dgvClass_EditingControlShowing(ByVal sender As Object, ByVal
e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) Handles
dgvClass.EditingControlShowing
If TypeOf e.Control Is ComboBox Then
Dim combo As ComboBox = DirectCast(e.Control, ComboBox)

If combo IsNot Nothing Then
RemoveHandler combo.SelectedIndexChanged, _
New EventHandler(AddressOf ComboBox_SelectedIndexChanged)


AddHandler combo.SelectedIndexChanged, AddressOf
ComboBox_SelectedIndexChanged
End If
End If
End Sub

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#4

"tim8w via DotNetMonster.com" <u31412@uwe> a écrit dans le message de
groupe de discussion : a29f12a6a1d99 (AT) uwe (DOT) ..

Quote:

I have a standard DataGridView. One of the columns is a
DataGridViewComboBoxColumn. When I select one of the ComboBox items, I
want
to trap the change and add additional columns based on the item
selected in
the ComboBox. I've tried using CellValueChanged for the DataGridView
column,
and a bunch of other events, but none of them is fired when the
DataGridViewComboBox value is changed. What event can I trap to make
this
happen? Right now as I said, I am using CellValueChanged, but of
course the
event doesn't fire until I click on another cell...

You can have a look at this event : CurrentCellDirtyStateChanged
In the event handler, you can call CommitEdit or EndEdit.

http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.currentcelldirty statechanged.aspx

--
Fred
foleide (AT) free (DOT) fr

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DataGridViewComboBoxColumn change to automatically update DataGridView

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DataGridViewComboBoxColumn change to automatically update DataGridView - 01-24-2010 , 10:29 PM

Re: DataGridViewComboBoxColumn change to automatically update DataGridView - 01-24-2010 , 10:57 PM

Re: DataGridViewComboBoxColumn change to automatically update DataGridView - 01-25-2010 , 12:33 AM

Re: DataGridViewComboBoxColumn change to automatically update DataGridView - 01-25-2010 , 01:08 AM