CompareValidator is always valid

[RobS23]

Okay, I admit in advance I am well out of practice.

But this is driving me mad. I want to check for a valid date on my webform. It can be US or UK/European formats so I'm adding .CultureInvariantValues = True.

But whatever gibberish I type in the textbox is accepted as valid.

What on earth am I missing?


Dim datecheck As New CompareValidator

With datecheck
.ControlToValidate = Me.visitdate.Text
.Type = ValidationDataType.Date
.Operator = ValidationCompareOperator.DataTypeCheck
.CultureInvariantValues = True
End With

If datecheck.IsValid Then
'Me.lblnodate.Visible = False
Stop
Exit Sub
Else
'Me.lblnodate.Visible ="Invalid"
stop
end if

 

[jmeckley]

I would start here

datecheck.ControlToValidate = Me.visitdate.[COLOR=red]Text[/color]

text is the value of the control, not the control itself

datecheck.ControlToValidate = Me.visitdate.[COLOR=blue]Id[/color]

second, this is better suited for the webforms markup than code behind since the values are static.

<asp:CompareValidator runat="server" id="..." ControlToValidate="TheDate" Operator="DataTypeCheck" Type="Date" CultureInvariantValues="True" />
<asp:TextBox Id="TheDate" runat="server" />

Jason Meckley
Programmer

faq855-7190
faq732-7259

 

[RobS23]

Thanks for your prompting. Being bloody minded and always trying to find my own way of doing things I played with it and ended up, as is so often the case, coming up with a hybrid solution at 3.00am.


1.EnableClientScript="False" on the webform I could then
call DateCheck.Validate() in my code at will

2. This also meant that I could wrap it in an If block of related controls. See if the 'visit' chkbox is checked and whether 'visitdate' was an empty string then set DateCheck.IsValid = False before calling DateCheck.Validate() This way I could then change the error message to something user friendly set focus and so on at will.

Once again thanks for your answer.