asked on 5/13/2011

I need help with a RequiredFieldValidator control in ASP.net 3.5

Hi Experts,
I need assistance using a RequiredFieldValidator control in my ASP.Net 3.5 application. Currently the RequiredFieldValidator is checking to see if the file selected in my FileUpload control contains the words 'Year', and 'Report' in it (see attached code).

I want the RequiredFieldValidator to make sure (validate) that the file selected in my FileUpload control also contains my DropDownList control's text value (DropDownList.SelectedItem.Text). How can I do this?

Thanks in advance,
mrotor

<asp:RegularExpressionValidator 
ID="RegularExpressionValidator1" runat="server"
ErrorMessage="Incorrect PSBD12 File."
ControlToValidate="fulPriorYearRSBD12"
ValidationExpression="^(?=.*?Year)(?=.*?PSBD12).*$" Font-Names="Arial" Font-Size="X-Small"/>

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ASP.NET .NET Programming Visual Basic.NET

Last Comment

mainrotor

5/18/2011

dejaanbu

5/13/2011

you to have to add a custom validator ..in client function u should check the equality

mainrotor

5/13/2011

ASKER

How would I use the CustomValidator deejanbu? Can you provide an Example?

Nasir Razzaq

5/13/2011

Using the custom validator control

http://www.4guysfromrolla.com/articles/073102-1.aspx

ASKER CERTIFIED SOLUTION

baiju_nagori

5/13/2011

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dejaanbu

5/13/2011

try @baiju_nagori's code and let us know

mainrotor

5/16/2011

ASKER

baiju
I get the following error when I try your code:

'ClientID' is not a member of 'System.Web.UI.WebControls.DropDownList'.

I don't know if this has to do with the fact that I am creating my ddl at runtime and not at designtime like this:

ddl.DataValueField = "ClientID"
ddl.DataTextField = "ClientCode"
ddl.DataSource = GetData()

Also in your code, will the following line of code:
var fileName = filePath.substring(filePath.lastIndexOf('\\') + 1);

be affected if my file paths look like this:
C:\TestSpreadSheet\AnnualRGBReport.xls

Is the line of code expecting the double backslash in the filepath? ('\\')

Thanks,
mrotor

baiju_nagori

5/16/2011

Can you post entire code along with ASPX?

mainrotor

5/17/2011

ASKER

Okay, will do.

mainrotor

5/18/2011

ASKER

Baiju, I figured it out. Here is what I did. I added the code below to my FileUpload Control source:
<asp:CustomValidator ID="CustomValidator1" runat="server"
ControlToValidate="FileUpload1"
ErrorMessage="Incorrect file format."
OnServerValidate ="CheckYearValidation">*</asp:CustomValidator>

Then I added a validation procedure in my codebehind:
Public Sub CheckYearValidation(ByVal source As Object, ByVal args As ServerValidateEventArgs)
args.IsValid = (args.Value.Contains("Year") _
And args.Value.Contains("PSBD12") _
And args.Value.Contains(ddlClient.SelectedItem.Text))
End Sub

That worked. Thanks baiju for your help.

mrotor