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use the onselectedIndexchanged method,<br />
<br />
You can invoke it like:<br />
<br />
&lt;asp: dropdownlist id=&quot;someName&quot; ruant=&quot;server&quot; onselectedIndexchanged=&quot;Yo<wbr />urSubOrFun<wbr />ctionHere&quot;<wbr />&gt;<br />
<br />
Fritz the Blank
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use the onselectedIndexchanged method,

You can invoke it like:

<asp: dropdownlist id="someName" ruant="server" onselectedIndexchanged="YourSubOrFunctionHere">

Fritz the Blank

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typo, should be:<br />
<br />
&lt;asp: dropdownlist id=&quot;someName&quot; runat=&quot;server&quot; onselectedIndexchanged=&quot;Yo<wbr />urSubOrFun<wbr />ctionHere&quot;<wbr />&gt;<br />

</div>


typo, should be:

<asp: dropdownlist id="someName" runat="server" onselectedIndexchanged="YourSubOrFunctionHere">


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This code doesn't work if your control is link to as data set!<br />
<br />
I need to refresh a second dropdown list control based on the change of another control!<br />

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This code doesn't work if your control is link to as data set!

I need to refresh a second dropdown list control based on the change of another control!


<div>
This might help:<br />
<br />
<a href="http://www.aspfree.com/authors/Mohammed_Mudassir/nomoreremotescripting.aspx" rel="ugc">http://www.aspfree.com/authors/Mohammed_Mudassir/nomoreremotescripting.aspx</a><br />
<br />
You will just need to change the second control, but this might get you started at least.<br />
<br />
Fritz the Blank
</div>


This might help:

http://www.aspfree.com/authors/Mohammed_Mudassir/nomoreremotescripting.aspx [http://www.aspfree.com/authors/Mohammed_Mudassir/nomoreremotescripting.aspx]

You will just need to change the second control, but this might get you started at least.

Fritz the Blank

<div>
No comment has been added lately, so it's time to clean up this TA.<br />
I will leave a recommendation in the Cleanup topic area that this question is:<br />
[PAQ with NO REFUND]<br />
<br />
Please leave any comments here within the next seven days.<br />
<br />
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!<br />
<br />
hongjun<br />
EE Cleanup Volunteer
</div>


No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:
[PAQ with NO REFUND]

Please leave any comments here within the next seven days.

PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!

hongjun
EE Cleanup Volunteer

<div>
<a href="http://www.aspfree.com/authors/Mohammed_Mudassir/nomoreremotescripting.aspx" rel="ugc">http://www.aspfree.com/authors/Mohammed_Mudassir/nomoreremotescripting.aspx</a> is dead.
</div>


http://www.aspfree.com/authors/Mohammed_Mudassir/nomoreremotescripting.aspx [http://www.aspfree.com/authors/Mohammed_Mudassir/nomoreremotescripting.aspx] is dead.

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<div class="content wysiwyg-content">
How can I trap a ChangeItem event of a Databound Dropdownlist control in ASP.net
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How can I trap a ChangeItem event of a Databound Dropdownlist control in ASP.net

Dropdownlist OnChange event

Active Server Pages (ASP) is Microsoft’s first server-side engine for dynamic web pages. ASP’s support of the Component Object Model (COM) enables it to access and use compiled libraries such as DLLs. It has been superseded by ASP.NET, but will be supported by Internet Information Services (IIS) through at least 2022.