How do I set a part of text non editable and the rest editable in a textbox aspx?

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I'm doing a webform, where i need to select a row from a table eg an ip 10.0.0.*. That * would be the editable part in the textbox "tb_ip" which the "10.0.0." would be in gray and the last digit of the ip editable and black..

This is my code:

ASP.NET

<div class="diver">
                <asp:Label ID="Label2" runat="server" Text="Seleccione grupo IP"></asp:Label></div>
            <div class="diver">
                <asp:DropDownList ID="DropDownList3" runat="server">
                </asp:DropDownList>
            </div>
            <div class="diver">
                <asp:Label ID="Label4" runat="server" Text="Asigne una IP"></asp:Label> </div>
            <div class="diver">
                <asp:TextBox ID="tb_ip" runat="server"></asp:TextBox></div>

Thank you !

Posted 20-Aug-14 5:51am

ronalboard

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Sergey Alexandrovich Kryukov · Accepted Answer · 2014-08-20T05:58:00

Solution 1

You cannot. You may choose to create two separate text boxes, on of them read-only. Also, just think about it: if what you wanted was possible, how confusing and irritating it could be for your customers. You need to think about better UI design, not unnatural tricks.

—SA

Posted 20-Aug-14 5:58am

Sergey Alexandrovich Kryukov

v2

Comments

ronalboard 20-Aug-14 12:06pm

Hi, thank you for your response. Would be better if I use this kind of solution? http://www.codeproject.com/Articles/201099/AutoComplete-With-DataBase-and-AjaxControlToolkit

Sergey Alexandrovich Kryukov 20-Aug-14 12:46pm

It totally depends on your goals (which I don't know) and is a separate unrelated question. If you need auto-complete, use it, why not?
I answered your original question...
—SA