Enable Textbox When Radiobuttonlist Is Selected Yes In Using Jquery Without Using Autopostback=true?

Jun 6, 2010

![<asp:RadioButtonList ID="RdoBtnHasNotified" runat="server" RepeatDirection="Horizontal" AutoPostBack="True" OnSelectedIndexChanged="RdoBtnHasNotified_SelectedIndexChanged">
<asp:ListItem Value="1">Yes</asp:ListItem>

[code]...

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TextBox And Calendar Extender When Using AutoPostBack=true Never Fires?

Jan 30, 2010

I have the following sample code

[Code]....

[Code]....

When I place a value in TextBox1 and then click inside TextBox3 (which is there to have a place to go to get out of TextBox1 and TextBox2) the value from TextBox1 remains and is displayed in the MessageBox.Show correctly.

When I pick a value from the drop down calendar extender in TextBox2 for a brief micro-second the value from the calendar displays in TextBox2 and then the MessageBox.Show displays and the value in TextBox2 returns back to the orginally set value. The MessageBox.Show shows the orginally set value.

For TextBox2 if I set AutoPostBack=false then the TextBox2 works correctly and keeps the date picked from the calendar extender but the ontextchanged="TextBox2_TextChanged" never fires.

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Selected Event Not Raised For ObjectDatasource When Enable-caching Is True?

Jan 14, 2011

I've a Gridview control using an ODS(ObjectDataSource) to fetch data. For the best performance and efficiency, I've turned-off the view state of Gridview (i.e. EnableViewstate = "false".And I've also enabled caching in the associated Objectdatasource. This eliminates as much as 50-60% performance optimization because it eliminates the DB round-trip .. courtesy ODS Caching.So, after this I got stuck into the famous "ODS sorting" issue but I managed to invent a tricky solution for it and its working fine

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Feb 24, 2010

It took me a little while to figure this out, but the AllowPaging="true" on the FormView seems to be the culprit. I don't have much experience paging from a FormView, but for this requirement the customers wants this kind of UI.I have a FormView with DefaultMode="Edit", which is bound to an EntityDataSource. One of the entity's properties, "ExternalID", determines whether some of the other properties in the entity are read-only. For example, if IsExternal==null, the FirstName, LastName, and Email fields should be rendered as TextBoxes. If IsExternal!=null, the 3 properties should be rendered in Label controls.

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How To Prevent AutoPostBack When DropDownlist Is Selected Using JQuery

Jul 21, 2010

I want to show a confirm dialog when the user selects an item in a DropDownList. If the user presses "Cancel", I want to stop the postback. Here is the function I add to the onchange event:

function imitateConfirmUnload(event) {
if (window.onbeforeunload = null)
return true;

return confirm("Are you sure you want to navigate away from this page?

You have unsaved changes

Press OK to continue or Cancel to stay on the current page.");
}

And this is the relevant bit of code in my startup script to add the handler to the event:

[code]...

The problem is that the postback occurs even if the user selects "Cancel". If I move the handler on to the click event, it works. But it feels clunky to me.

Edit

Correction: it doesn't work onclick, because the dialog prevents selection, so when the user selects OK, no change has taken place, and no postback when you want it!

Edit 2

The DropDownList is inside an UpdatePanel so that may affect behavior.

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AJAX :: RadioButtonList.SelectedIndexChanged Not Raised When The ListItem Has Selected="True" Not Working

Jun 29, 2010

I have two radiobuttons in radiobuttonlist and based on selection, i am enabling and disabling the text box.
First time i used date radiobutton and i took date in corresponding textbox and i saved it into database and then when i came back on same page i saw the date radiobutton is checked has proper value then i clicked on another radiobutton and this time page is postback and clear my all the data which was in my other controls(I have 5-6 text boxed on my page). I dont know why?, It supposed to select my other radiobutton and enable the corresponding text box

[Code]....

if (!Page.IsPostBack)
{
if (gvCredentialTypes.SelectedIndex >= 0)
{
CredentialType credType = CredentialType.FindCredentialType(gvCredentialTypes.SelectedValue.ToString());
if (!String.IsNullOrEmpty(credType.CredentialTypeName)) //If exists, load data
{
String expDays = credType.ExpirationLength.ToString();
DateTime expDate = Convert.ToDateTime(credType.ExpirationDate);
// Assign the value to the controls
LoadExpirationDaysDateValue(expDays, expDate);
}
}
}

private void LoadExpirationDaysDateValue(String expDays, DateTime expDate)
{
// Determines whether value for Days or Date is present
Boolean IsDays = false;
// Check if days value is present
if (String.IsNullOrEmpty(expDays) || expDays.Equals("0"))
{
txtExpirationDays.Text = String.Empty;
}
else
{
txtExpirationDays.Text = expDays;
IsDays = true;
}
if (expDate.ToShortDateString().Equals ("1/1/0001"))
{
txtExpirationDate.Text = String.Empty;
}
else
{
txtExpirationDate.Text = expDate.ToShortDateString();
IsDays = false;
}
// Set the radio button value based on whether Date or Days value is present
if (IsDays)
{
// Get ref to the 1st radio item
ListItem liExpirationInDays = rbExpiration.Items.FindByValue("rbExpirationInDays");
if (liExpirationInDays != null)
{
liExpirationInDays.Selected = true;
rbExpiration.Items.FindByValue("rbExpirationDate").Selected = false;
txtExpirationDate.Text = string.Empty;
txtExpirationDays.Text = expDays;
// Enable or disable the controls based on the radio button selection
txtExpirationDays.Enabled = true;
RequiredFieldValidator1.Enabled = true;
RangeValidator1.Enabled = true;
txtExpirationDate.Enabled = false;
RegularExpressionValidator1.Enabled = false;
CalendarExtender2.Enabled = false;
//compDateValidator.Enabled = false;
RequiredFieldValidator2.Enabled = false;
}
}
else
{
// Get ref to the 2nd radio item
ListItem liExpirationDate = rbExpiration.Items.FindByValue("rbExpirationDate");
if (liExpirationDate != null)
{
liExpirationDate.Selected = true;
rbExpiration.Items.FindByValue("rbExpirationInDays").Selected = false;
txtExpirationDays.Text = string.Empty;
txtExpirationDate.Text = expDate.ToShortDateString();
// Enable or disable the controls based on the radio button selection
txtExpirationDate.Enabled = true;
RegularExpressionValidator1.Enabled = true;
RequiredFieldValidator2.Enabled = true;
CalendarExtender2.Enabled = true;
//compDateValidator.Enabled = true;
txtExpirationDays.Enabled = false;
RequiredFieldValidator1.Enabled = false;
RangeValidator1.Enabled = false;
}
}
}

private void EnableCorrespondingTextbox()
{
switch (rbExpiration.SelectedItem.Value)
{
case "rbExpirationInDays":
txtExpirationDays.Enabled = true;
RequiredFieldValidator1.Enabled = true;
RangeValidator1.Enabled = true;
txtExpirationDate.Text = String.Empty;
txtExpirationDate.Enabled = false;
RegularExpressionValidator1.Enabled = false;
CalendarExtender2.Enabled = false;
RequiredFieldValidator2.Enabled = false;
//compDateValidator.Enabled = false;
break;
case "rbExpirationDate":
txtExpirationDate.Enabled = true;
RegularExpressionValidator1.Enabled = true;
RequiredFieldValidator2.Enabled = true;
CalendarExtender2.Enabled = true;
//compDateValidator.Enabled = true;
txtExpirationDays.Text = String.Empty;
txtExpirationDays.Enabled = false;
RequiredFieldValidator1.Enabled = false;
RangeValidator1.Enabled = false;
break;
}
}

protected void OnSelectedIndexChangedMethod(object sender, EventArgs e)
{
EnableCorrespondingTextbox();
}

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Mar 8, 2011

I am using jquery and c# to dynamically set a radiobuttonlist listitem to selected. I want to create a reset-type button to reset the radiobuttonlist selected item back to the first item in the list. jQuery/jsTree function currently reseting textbox and hidden field:

$('#ContentPlaceHolder1_hfNodeID').val('');
$('.txtPage').val('');
$('.rblContentTypesGetAll').val();
$('.contentPageForm').show(),
.rblContentTypesGetAll is the radiobuttonlist i want to reset (or select the top most listitem).
HTML of the form:
<asp:Panel ID="PagesForm" CssClass="contentPageForm" runat="server">
<asp:HiddenField ID="hfNodeID" runat="server" Value="" />
<table>
<tr>
<td>Page</td>
<td><asp:TextBox ID="txtPage" CssClass="txtPage" runat="server" /><span class="validate">*</span><br />
<asp:RequiredFieldValidator ID="rfvPage" runat="server" CssClass="validate" ControlToValidate="txtPage" Display="Dynamic" ErrorMessage="Page Name Required" ValidationGroup="page" /></td>
</tr>
<tr>
<td>Content Type</td>
<td>
<asp:RadioButtonList id="rblContentTypesGetAll" CssClass="rblContentTypesGetAll" OnLoad="rblContentTypesGetAll_Load" runat="server" >
</asp:RadioButtonList>
</td>
</tr>
<tr>
<td> <asp:Button ID="Submit" runat="server" OnClick="PageSubmit_Click" Text="Save" ValidationGroup="page" />
<asp:Button ID="Cancel" runat="server" OnClick="Cancel_Click" Text="Cancel" />
</td>
</tr>
</table>
</asp:Panel>

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Get Radiobuttonlist Selected Value In Code Behind When Using JQuery Buttonset?

Sep 20, 2010

I am using the jQueryUI buttonset on an ASP.NET radiobuttonlist. I need to get the selected value in server-side code when the page posts back. If I don't apply the jQuery buttonset, this is of course easy enough - just grab "SelectedValue". However, when I do apply jQuery buttonset, the selected value does not appear to be available on postback any longer. Is there any way around this, or do I need to get the selected value on clientside, and then pass it back myself?

<asp:RadioButtonList ID="RadioButtonList0" CssClass="ratingButtons" runat="server">
<asp:ListItem Text="Option1" Value="1"/>
<asp:ListItem Text="Option2" Value="2" />
<asp:ListItem Text="Option" Value="3" />
<asp:ListItem Text="Option4" Value="4" />
</asp:RadioButtonList>
$(function () {
$(".ratingButtons").buttonset();
$(".ratingButtons").click(function () { return false; });
});

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Mar 29, 2010

I am using an asp.net autopostback enabled dropdown list. Here i want to restrict the autopostback property fot the value "Select" in the ddl. I have used javascript for this purpose. but not working.My code look like this.

[Code]....

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Sep 23, 2010

I have three AJAX sliders and each has a:

<asp:AsyncPostBackTrigger ControlID="Slider1" EventName="TextChanged" />
<asp:AsyncPostBackTrigger ControlID="Slider2" EventName="TextChanged" />
<asp:AsyncPostBackTrigger ControlID="Slider3" EventName="TextChanged" />

When I do a TextChanged event on slider1 (by dragging the slider, changing the value), the protected void Slider1_TextChanged(object sender, EventArgs e) event FIRES, however, the TWO other sliders, protected void Slider2_TextChange, and protected void
Slider3_TextChange also FIRES. What gives? why do they fire when I am physically only sliding the slider1 across. The two other sliders values did not change on the webform, yet the event fired.

In order for the event to fire for slider1, I had to insert "Autopostback=true" in the <asp:TextBox ID="Slider1" autopostback="true" OnTextChanged="Slider1_TextChanged">. For <asp:TextBox2> and <asp:Textbox3> I did not put the autopostback event for now.

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Jun 29, 2010

I have a checkboxlist with autopostback set to true, the checkbox list inside a panel and together they are inside an update panel.

when I first check one item everything is fine but when I try to check another one a javascrip error fires.

"Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerServerErrorException: Specified argument was out of the range of valid values. "

this is my code:

[Code]....

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Aug 25, 2009

I have a javascript function that disables the enter key on a textbox. This function works perfectly except when the textboxes autopostback property is set to true. Is there a way to disable the enter key on a textbox who's autopostback is true? Here is the javascript.

[Code]....

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Mar 22, 2011

I've got a server control that renders out a series of dropdownlist and a checkbox that all have autopostback set to true. When the control renders the onchange event binding is not written out!

Controls are defined as protected, named and added to the controls collection in OnInit, and rendered via RenderControl(writer). Page.requiresPostback is also set.

ANy ideas why this might be? I'm scratching my head.

/* chopped version of the code in question */

[Code]....

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Feb 3, 2011

I am getting the following error as Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation. when an invalid value is passed in dropdown with autopostback=true. What should I do. I want the solution with "EventValidation=true" and "ValidateRequest=true" in the Page directives. Also without any Custom Error Pages Enabled in web.config file i.e Custom Error Pages are off in web.config file.

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Apr 29, 2010

i have some question about the autopostback. when i set a drop down menu to autopostback to true, the content editor in the same formview is disappear..

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i have two dropdownlist in my webform both are filled dynamically in the page_load event

[Code]....

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Oct 13, 2010

My dropdownlist having data from database added with the following item:

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May 27, 2010

In the postback option class, the autopostback property is not functioning (for true or false) to forcibly set the the post back event on web page load as defined at the MSDN Url http://msdn.microsoft.com/en-us/library/system.web.ui.postbackoptions.aspx

A client side validation retrieves the GetPostBackEvent reference successully but fails to to load the page as a forced post back event. The options being set are a) ActionURL, Autpostback , RequiresJavaScriptProtocol and perform validation.

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Oct 7, 2010

I have the following code:

.aspx
<asp:DropDownList ID="ddlCountries" AutoPostBack="true" runat="server">
</asp:DropDownList>

[code]...

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Jan 8, 2011

I am having a problem with dropdownlist auto post back set to true...

In my project I have to hide and display two other dropdown lists depends on selected index change of a main dropdown..

I set the auto postback to true and I am hiding and displaying the dropdowns on user selection...Everthing is working fine..

But I am having a very hard time when user types when the dropdown got focus..this is very annoying situation..if type one word its doing a postback and they are unable to type further...

is there any way to fire this onselectedindex change event on blur or on enter key press...is there a way of doing it with java script or jquery...

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Nov 9, 2010

I am using a radiobuttonlist in my project. Where i want to hide one of radiobuttonlist item visible true or false. according to the selection of the country. I am able to hide the radiobutton but the corresponding text is still displayed. How to hide both radiobutton and also the related text.

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Aug 5, 2010

Not sure if this can be done. The requirement is to change the font for part of the text in a textbox when a semi-colon (keyCode 186) is typed. This is an ASP.NET 3.5 app. Our corporate environment only uses IE so there are no cross-browser compatability issues. I have written this much so far in jQuery:

[Code]....

This is pretty close. As soon as the first semi-colon is typed, the font of the entire textbox changes to italics. As soon as the second semi-colon is typed, the font changes back. The requirement is that the font be normal until the first semi-colon is typed and then everything between the first and second semi-colon must be in italics. After the second semi-colon, the remaining characters must revert back to normal. This is an example of the text correctly formatted: This is the start; of the string and this is; the end of the string.

Is it possible to change the font style of only the middle part of the text string? If so, it probably involves creating a range that starts with is the whatever character position of the first semi-colon + 1 and ending at the second semi-colon, right? I just can't seem to wrap my head around this one.

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Jan 28, 2011

I have a scenario where a RadioButtonList needs to be in disabled mode by default and then on some event on client side, say, when a checkbox is checked, it needs to be enabled.

But once I disable it from code-behind, the javascript part of enabling it doesn't work.

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Nov 12, 2009

I am trying to have a radiobuttonlist control enable and disable certain drop down boxes depending on the item selected. The problem I am having is that the radiobuttonlist is also a server/ASP control that is bound to a database field. Thus I cannot mix server and client-side code. (Head-slapping compile errors ensue).

From what I can tell I have 2 options:

1. Make the button list control a client side control and use javascript to enable and disable the appropriate dropdown boxes. 2. Use code behind to set the Enabled attributes of the dropdown box.

The problem with 1 is how to get the value of the radiobuttonlist into the SQLDatasource. Would it make sense to put a line in the javascript to set the value of the radiobuttonlist to text box that is set as Visible="false" and is bound to the SQLDatasource field? The problem with 2 is that it really doesn't make sense do a postback roundtrip for a purely client action.

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Jan 10, 2011

i am using JQuery UI Autocomplete with asp.net textbox.AutoComplete works right.but how can i assign selected ID of returned Data to an hiddenField?My server Side Function returned list of objects that contains (this is an example) :

public List<Employee> GetEmployeeList()
{
List<Employee> empList = new List<Employee>();
empList.Add(new Employee() { ID = 1, Email = "Mary@somemail.com" });
empList.Add(new Employee() { ID = 2, Email = "John@somemail.com" });
empList.Add(new Employee() { ID = 3, Email = "Amber@somemail.com" });
empList.Add(new Employee() { ID = 4, Email = "Kathy@somemail.com" });
empList.Add(new Employee() { ID = 5, Email = "Lena@somemail.com" });
empList.Add(new Employee() { ID = 6, Email = "Susanne@somemail.com" });
empList.Add(new Employee() { ID = 7, Email = "Johnjim@somemail.com" });
empList.Add(new Employee() { ID = 8, Email = "Jonay@somemail.com" });
empList.Add(new Employee() { ID = 9, Email = "Robert@somemail.com" });
empList.Add(new Employee() { ID = 10, Email = "Krishna@somemail.com" });
return empList;
}
and this is ASPX Code :
<form id="form1" runat="server">
<div class="demo">
<div class="ui-widget">
<label for="tbAuto">
Enter Email:
</label>
<asp:TextBox ID="tbAuto" class="tb" runat="server">
</asp:TextBox>
</div>
</div>
<asp:TextBox ID="TextBox1" runat="server">
</asp:TextBox>
<asp:Label runat="server" ID="lbl" Text=""></asp:Label>
<asp:HiddenField runat="server" ID="hidid" />
<asp:Button ID="Button1" runat="server" Text="Button" />
</form>

here is my jquery Code :

<script type="text/javascript">
$(function () {
$(".tb").autocomplete({
select: function( event, ui ) {
// now assign the id of the selected element into your hidden field
$("#<%= hidid.ClientID %>").val( ui.item.ID );
},
source: function (request, response) {
$.ajax({
url: "Default.aspx/FetchEmailList",
data: "{ 'mail': '" + request.term + "' }",
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
dataFilter: function (data) { return data; },
success: function (data) {
response($.map(data.d, function (item) {
return {
value: item.Email
}
}
)
)
}
,
error: function (XMLHttpRequest, textStatus, errorThrown) {
alert(textStatus);
alert(errorThrown);
}
});
},
minLength: 1
});
});
</script>

And this is My WEb Method Side Code :

<WebMethod()> _
Public Shared Function FetchEmailList(ByVal mail As String) As List(Of Employee)
Dim emp = New Employee()
Dim fetchEmail = emp.GetEmployeeList()
Return fetchEmail
End Function

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Jan 25, 2011

Buenos nachos, to be brief, my question is: is it possible to allow users to add new items to a combobox at runtime without having the autopostback property set to true? I understand it needs to postback if a new item is added, but I do not want the box to postback if the user simply selects a different value!

The tag I currently have is below. Without having the autopostback="true", the comboxbox doesn't allow the user to add new items to the box >_<' Any thoughts?

<ajx:ComboBox ID="cbCompany" runat="server" Width="226px" DropDownStyle="DropDown"
OnItemInserted="addCompany" AutoCompleteMode="SuggestAppend">
</ajx:ComboBox>

I know I could add a few more controls and do an easy workaround, just wondering if it is possible to do it this way.

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Aug 31, 2010

I have following *.aspx page

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Test.aspx.cs" Inherits="Admin_Test" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">

[code]....

When I change the value in dropdownList (in browser), it does PostBack, but it selects the first item of list after PostBack - it doesn't save my value.

GetAllDepartments(isDeleted) is a stored procedure, it returns a List of objects with two properties - FieldKey and Name.

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Mar 17, 2011

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[Code]....

While testing this on normal computer using IE7 IE8 it fires the AutoPostBack Control.BUT TESTING IN IPHONE THIS DOES NOT FIRES....ALSO THE DISPLAY IS WIERD BECAUSE A SEPARATE BOX APPEARS AT THE BOTTOM TO SELECT THE LIST.

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Nov 6, 2009

Markup:

[Code]....

Code behind

[Code]....

After spending nearly all day trying to get this event to fire in Firefox, I've all but given up. It works in IE just fine.

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May 13, 2010

IAm using ASP.NET Ajax.
Iam having a Update Panel with DropDownList with AutoPostBack="True"
I dont want to postback it, but it going postback, i dont want AutoPostBack="false"
.

Here my code:
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePartialRendering ="true" >
</asp:ScriptManager>
<br />
<br />
<div>
</div>
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack ="true" OnSelectedIndexChanged ="DropDownList1_SelectedIndexChanged" >
<asp:ListItem Value="0">----Select----</asp:ListItem>
<asp:ListItem Value="101">General Admin</asp:ListItem>
<asp:ListItem Value="102">Admin Assistant</asp:ListItem>
<asp:ListItem Value="103">Software</asp:ListItem>
<asp:ListItem Value="104">Recruiting</asp:ListItem>
</asp:DropDownList>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode ="Conditional" >
<ContentTemplate >
<asp:DropDownList
ID="DropDownList2" runat="server">
<asp:ListItem Value="0">----Select----</asp:ListItem>
<asp:ListItem></asp:ListItem>
</asp:DropDownList>
</ContentTemplate>
<Triggers >
<asp:AsyncPostBackTrigger ControlID ="DropDownList1" EventName ="SelectedIndexChanged" />
</Triggers>
</asp:UpdatePanel>
</form>

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