Can 1 TextBox have 2 RegularExpressionValidator?

Question

I'm trying to validate a TextBox used for the username in the user registration page. The conditions are:

First character should be an uppercase letter.
Length should be a maximum of 8 characters.

I'm using a RegularExpressionValidator to check both conditions at the same time but this results in the same error message: "Username should be maximum 8 characters long and start with an uppercase letter.".

I would like to display specific error messages based on the above conditions, say:

Condition 1: Username should start with an uppercase letter.
Condition 2: Username should be maximum 8 characters long.

I want both error messages to appear if both conditions are not satisfied.

Here is my present code:

<asp:TextBox ID="username" runat="server" CssClass="InputText"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvUsername" runat="server"
    ControlToValidate="username" Display="Dynamic"
    EnableClientScript="true">Username is required
</asp:RequiredFieldValidator>
<asp:RegularExpressionValidator
    ID="revUsername" runat="server" Display="Dynamic"  
    ControlToValidate="username"
    ValidationExpression="[A-Z][A-Z0-9]{0,7}" >
        Username should be max 8 characters long
        and should start with an alphabet.
</asp:RegularExpressionValidator>

How do I achieve this?

And having 2 separate validators attached to the same element doesn't work for you? — Icarus, Aug 01 '13 at 13:43
no it does not. I even tried adding CustomValidator for the second condition even then it does not give required output. — hima, Aug 01 '13 at 13:46
It works for me. I just tested it. If I submit the form leaving the username field empty I get: `Username is required`. If i enter something and submit the form, I get: `Username should be max 8 characters long and should start with an alphabet.` — Icarus, Aug 01 '13 at 13:47
sorry you got me wrong. I want to display 2 different error messages. Please read the question carefully. Hope my question is clear. — hima, Aug 01 '13 at 13:49
You want to **display both error messages when the username field is empty**, then. The way you phrased your question does not express this clearly. — Icarus, Aug 01 '13 at 13:58
Oh no. When condition 1 fails display: Username should start with and alphabet. When condition 2 fails display: Username should be max 8 characters. — hima, Aug 01 '13 at 14:00
that's exactly what I tested and it works fine (at least on my PC). What error, if any, do you get specifically? What do you see when you run the code you posted? — Icarus, Aug 01 '13 at 14:15
let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/34634/discussion-between-hima-and-icarus) — hima, Aug 01 '13 at 14:23

score 1 · Accepted Answer · edited May 23 '17 at 11:56

1

<asp:TextBox ID="username" runat="server" MaxLength="8" CssClass="InputText"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvUsername" runat="server"
    ControlToValidate="username" Display="Dynamic"
    EnableClientScript="true">Username is required
</asp:RequiredFieldValidator>

for first letter uppercase Regex to check if the first character is uppercase

edited May 23 '17 at 11:56

Community

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answered Aug 13 '13 at 15:56

senthilkumar2185

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Can 1 TextBox have 2 RegularExpressionValidator?

1 Answers1