"e.cancel" gives Build Error in DataGridView CellValidating Event

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When I Build my project, I get the following error on my e.cancel statement:

'cancel' is not a member of 'System.Windows.Forms.DataGridViewCellEventArgs'

Here's the code in my event:

VB

Private Sub dgvPhysCME_CellValidating(ByVal sender As System.Object, ByVal e As DataGridViewCellEventArgs) Handles dgvPhysCME.CellValueChanged

    'Bypass CellValidation when building/showing DataGridView
    If e.RowIndex = -1 Then Exit Sub

    'Clear ErrorText before testing cell value
    dgvPhysCME.Rows(e.RowIndex).ErrorText = ""

    'If cell is not null, exit sub
    If Not IsDBNull(dgvPhysCME.Rows(e.RowIndex).Cells(e.ColumnIndex).Value) Then Exit Sub

    dgvPhysCME.Rows(e.RowIndex).ErrorText = "Field must not be empty"

    '*** This is where I'm getting the Build Error ***
    e.cancel = True

End Sub

Posted 5-Feb-11 2:54am

Eddie Niebruegge

Updated 5-Feb-11 3:52am

Henry Minute

v3

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Estys · Accepted Answer · 2011-02-05T03:05:00

Solution 2

You handle the wrong event.
It must be :

private void dgvPhysCME_CellValidating(object sender, DataGridViewCellValidatingEventArgs e) Handles dgvPhysCME.CellValidating

The DataGridViewCellValidatingEventArgs has a Cancel property.

Cheers

Posted 5-Feb-11 3:05am

Estys

Comments

Eddie Niebruegge 5-Feb-11 9:57am

Thanks, Estys. That fixed the problem. If I remember correctly, I first created the event from the Properties/Event table, then edited what it gave me (obviously in error). Can you give me a reference point where I can go to see what properties other ...EventArgs have? Thanks again, Eddie

Estys 5-Feb-11 10:35am

Specific for your ..Args :
http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridviewcellvalidatingeventargs.aspx
You can navigate from there in the System.Windows.Forms namespace.
Or just google the ..EventArgs you want to look at, the are millions of them and not only in this namespace.

Eddie Niebruegge 5-Feb-11 11:24am

Thanks again, Eddie

OriginalGriff · Accepted Answer · 2011-02-05T03:02:00

Solution 1

Try e.Cancel instead: C# and VB are case sensitive.
Additionally, you are using the wrong eventargs: DataGridViewCellValidatingEventArgs is what you should have. See MSDN[^] for details.

Posted 5-Feb-11 3:02am

OriginalGriff

Updated 5-Feb-11 3:03am

v2

Comments

Eddie Niebruegge 5-Feb-11 9:51am

Thanks, OriginalGriff. You were half right. Changing the eventargs fixed the problem... thanks, again. However, although C# is case sensitive, VB isn't. Eddie

OriginalGriff 5-Feb-11 9:56am

No you are right - it just should be! :laugh:

"e.cancel" gives Build Error in DataGridView CellValidating Event

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"e.cancel" gives Build Error in DataGridView CellValidating Event

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