Unable to add attribute to html text input

Question

I have ASP.NET web form there is html input text:

<input type="text" class="input" runat="server" id="txtFirstName"/>

i want to change width this way but it does not works

protected void btnRegister_Click(object sender, EventArgs e) 
    {
        if (txtFirstName.Value.Length > 15)
        {
            txtFirstName.Attributes.Add("width", "15px");
        }
    }

p.s. i have access on this text input. Im inputting more than 15 characters and if works good

Royi Namir · Accepted Answer · 2012-02-04 13:58:40Z

2

txtFirstName.style["width"]= "15px";

answered Feb 4, 2012 at 13:58

Royi Namir

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