How do I say, if a textbox doesn't equal the proper date format (mm/dd/yyyy) than throw an error.

I have tried Try and Catch statement but it is not working the way I want it to.

For Ex:
I have txtDOB.text, if txtDOB.text <> mm/dd/yyyy (some date) then
response.write an error message.

Any help is greatly appricated.

Thanks,
MGR

A normal query asked is to validate the date in a specific format. The sample code demonstrates to validate a date in a specific given format. Sample Below checks for the date given in mm/dd/yy or mm/dd/yyyy format.

The Namspace used in the demonstration is System.Globalization

Step 1: main.aspx

<asp:Button id="btnValidate" runat="server" Text="Validate Date"></asp:Button>
<asp:Label id="Label1" runat="server">Enter Date</asp:Label>
<asp:TextBox id="txtDate" runat="server"></asp:TextBox>


Step 2: main.aspx.vb

Private Sub btnValidate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnValidate.Click

Try
     Dim myDateTimeUS As System.DateTime
     Dim format As New System.Globalization.CultureInfo("en-US", True)
     myDateTimeUS = System.DateTime.Parse(txtDate.Text, format)
     Response.Write("Valid Date")

Catch ex As Exception

     Response.Write(ex.Message)
     Response.Write("Not Valid Date")

End Try

(not tested)

Yippie Ki Yea, Mr. Falcon.

hey stu9820, thanks for the reply.

However I am still having alittle trouble getting this to work from a checkDate function or on Page_Load instead of running it from a button as you have shown. I get it working from a button, with no troubles.

Thanks again,
Mark