making a textbox visible depending on Dropdown list selection

Question

I have a dropdownlist with options and the last option is Other. If the user selects Other I have to make a text box visible.

I did it using asp.net and made the autopostback=true for ddlchanged event. When I follow this when ever the user selects other the page flickers and going to the top.

somebody told me that I can use jquery to do it with out loading the page again. can you tell me how? Also it should also check the required field validation.

Samich · Accepted Answer · 2011-10-11 20:04:25Z

3

Using jquery it will looks like:

$('#dropdown').change(function() {
   if ($(this).val() == 'Other')
    {
      $('#textbox').show();
    }
    else
    {
      $('#textbox').hide();
    }

});

Code: http://jsfiddle.net/8Ct5r/

answered Oct 11, 2011 at 20:04

Samich

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3 Comments

SmilingLily Over a year ago

SmilingLily Over a year ago

<asp:TextBox runat="server" ID="txtOther" style="display:none;" > </asp:TextBox>

Samich Over a year ago

What it should do? :) The only thing I noticed that this is server controls and in javascript ID of the control can be different, like ctrl01_txtOther, etc...

JoshYates1980 · Accepted Answer · 2015-10-19 16:27:11Z

0

 $('#dropdownID').change(function () {
        var dropdownValue = $('#dropdownID').val();

        if (dropdownValue == 71) {
            $('#TextboxID').show();
        }
        else {
            $('#TextboxID').hide();
        }
    })

edited Oct 19, 2015 at 16:27

answered Oct 19, 2015 at 16:07

JoshYates1980

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1 Comment

Max Leske Over a year ago

While this code may answer the question, providing additional context regarding how and/or why it solves the problem would improve the answer's long-term value.

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