Dropdown list to textbox

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Hello, I have a drop down list and few panels having textboxes in my design. In the dropdown list, I have embedded few branch names. My procedure is I'll select any branch and write some information in textboxes, then save it.
Its working fine.

Suppose when I select branch1, and write some information in textboxes, in the middle of the process, I will change branch1 to branch2, then when I select different branch in the midst of the process, I need to clear all the controls in my design page. How can I do it? Please do help.

Thank You

Posted 17-Jan-13 18:32pm

Bhargav.456

Updated 13-May-16 22:15pm

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Comments

Sumit_Kumar_Sinha 18-Jan-13 1:16am

You use dropdownlist OnIndexChanging then clear controls values...

Bhargav.456 18-Jan-13 1:32am

Thanks, Suppose if I have 40 textboxes, how can I do?

2 solutions

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

AdityaPratapSingh · Answer 1 · 2013-01-17T19:14:00

Solution 1

1.add event as Dropdown_SelectedIndexChanged
2.then

C#

textbox.text=String.Empty;

like example

C#

protected void DropDownProducts_SelectedIndexChanged(object sender, EventArgs e)
        {
textbox.text=String.Empty;
}

Posted 17-Jan-13 19:14pm

AdityaPratapSingh

Comments

Bhargav.456 18-Jan-13 1:32am

Thanks, Suppose if I have 40 textboxes, how can I do?

AdityaPratapSingh 18-Jan-13 1:52am

then you should use this code
protected void DropDownProducts_SelectedIndexChanged(object sender, EventArgs e)
{
foreach (var item in form1.Controls)
{
if (item is TextBox)
{
((TextBox)item).Text = "";
}
}
}

Rajesh Londhe · Answer 2 · 2016-05-13T22:15:00

Use javascript to clear all fields when value in dropdownlist changed.

JavaScript

<script type="text/javascript">
       function onValueChange()
       {
           try {
               document.getElementById('<%=TextBox_Name.ClientID%>').value="";

           }
           catch(e){alert(e.message);}
       }
   </script>

Call this function on

HTML

onchange='onValueChange();'

event of dropdownlist.

Must add

HTML

ClientIDMode="Static"

attribute to textbox which you want to make clear.

Dropdown list to textbox

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Dropdown list to textbox

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