"Anonymous" <anonymous@discussions.microsoft.com> wrote in message
news:053f01c3d4b2$15a025b0$a301280a@phx.gbl...
> This is a pretty dumb question but I can't seem to find
> answer.
>
> How do you check to see if a datatype of a variable is
> correct? Eg in Visual Basic:
>
> Dim datevar
> datevar= "1a/2/2004"
>
> If IsDate(datevar) <> true then
> msgbox "The value in variable 'datevar' is not a date."
> End if
>
> Thanks.

>-----Original Message-----
>
>"Anonymous" <anonymous@discussions.microsoft.com> wrote
in message
>news:053f01c3d4b2$15a025b0$a301280a@phx.gbl...
>> This is a pretty dumb question but I can't seem to find
>> answer.
>>
>> How do you check to see if a datatype of a variable is
>> correct? Eg in Visual Basic:
>>
>> Dim datevar
>> datevar= "1a/2/2004"
>>
>> If IsDate(datevar) <> true then
>> msgbox "The value in variable 'datevar' is not a
date."
>> End if
>>
>> Thanks.
>
>First, declaring a variable as a specific type is a good
idea. That helps
>with the process of checking input. Here is a simple
VB.NET routine to do
>what you want:
>(this is from a button click event handler once the user
has entered a date
>(hopefully) in TextBox1)
>Dim dateVar As Date
>
>Try
>
> dateVar = TextBox1.Text
>
>Catch ex As Exception
>
> 'We get here if the entry was not a date
>
> TextBox1.Text = ""
>
> TextBox1.Focus()
>
> MessageBox.Show("please enter a date")
>
>End Try
>
>This is very basic, but it should get you started with
try - catch blocks.
>
>
>--
>Peter [MVP Academic]
>
>
>.