How to disable "Backspace" control.?

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Hi All,

In my aspx page one text box is there. I want to disable "Backspace" button functionality for specific text box.

Thanks and Regards,
Murali.

Posted 4-Dec-12 22:34pm

Kmurali Krishna

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4 solutions

Solution 1

http://stackoverflow.com/questions/11266136/how-to-disable-the-backspace-key-for-anything-inside-body-except-inputs-and-te[^]

Posted 4-Dec-12 22:41pm

Krunal Rohit

Solution 2

http://www.dreamincode.net/forums/topic/105058-disable-key/

Posted 4-Dec-12 22:47pm

Deenuji

Updated 4-Dec-12 22:48pm

v2

Solution 3

hi dear,

check this solution.

C#

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 8)
            {
                e.Handled = true;
            }
        }

Posted 5-Dec-12 0:06am

azizulhoque.bd

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Kmurali Krishna · Accepted Answer · 2012-12-05T00:15:00

I tried like this it's working fine.

JavaScript

<script type ="text/javascript">
    function Keypress_Event() {
        // This is for Getting the Source Element..
        var objTxtBox = window.event.srcElement;
        // declare the variable for the bool value.
        var isOk = false;
        // Here we need not backspace keycode = 8 and the delete keycode 46
        isOk = (event.keyCode == 8 || event.keyCode == 46) ? false : true; event.returnValue = isOk;
    }
</script>

asp:TextBox ID="txtTest" runat="server" onkeydown="Keypress_Event()"