I want the textbox to have red borders

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How to make textbox border red in colour when the user submits the form without specifying a value in the textbox, I want the textbox to have red borders.

Posted 6-Mar-13 0:24am

Ramkumar K

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Raje_ 8-Mar-13 7:12am

Why are you down voting the answers? If you down vote any answer then please write a comment about your reason for down voting.

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Treat my content as plain text, not as HTML

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Raje_ · Answer 1 · 2013-03-06T00:40:00

you can try this:
your html code:

ASP.NET

 <asp:textbox id="txtName" runat="server"></asp:textbox>
 <asp:button id="btnSave" runat="server" text="Save"
             OnClientClick="return validate();" />
</asp:button>

your javascript function:

JavaScript

function validate() {
    var txt = document.getElementById('<%= txtName.ClientID %>');
    if (txt.value == "") {
        txt.style.border = "1px solid Red";
        return false;
    }
 }

Good luck.

_Amy · Answer 2 · 2013-03-06T00:51:00

When validation fails for a control - it'll add a css class to the control in the html. Look at your rendered html(Right click on browser --> View Source) and check out the class for TextBox. Then edit your css to include a new style for the failed validation.
Like this:

CSS

input.input-validation-error,
textarea.input-validation-error,
select.input-validation-error
{
    background: #FEF1EC;
    border: 1px solid #CD0A0A;
}

--Amit

I want the textbox to have red borders

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