No events for handling the dropdownlist in ASP.NET

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I have a DropDownList control in my Asp.net page.

<asp:DropDownList ID="DDUserList" CausesValidation="true"  
									 OnTextChanged="DropDownChange" runat="server" CssClass="DropDown" AppendDataBoundItems="True" />

The List is Load it in the control but when I.m trying to Select one Item then there no any event to cache it.

Is any solution to this issue?

What I have tried:

Finally I saw an event raise.
And that is the

DDUserList.SelectedIndexChanged

But NOT when I need it. It raise when I made a new selection in the control and trying to leave that Panel and go somewhere else; in the same page.
Then the event raises.
But that is not what I want.
Problem remains.

Posted 9-Dec-18 10:20am

Lefteris Gkinis

Updated 9-Dec-18 20:13pm

v2

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2 solutions

Solution 1

I think the issue is solved.
But I don't know if that is the right one.
I add the AutoPostBack="True" in my as.net area and the event raises.
If that is the right solution please answer.
Thank you

Posted 9-Dec-18 11:04am

Lefteris Gkinis

Comments

PRAKASH9 10-Dec-18 1:04am

for calling SelectedIndexChanged event of DropDownList in Asp.net You must have to set AutoPostBack property to 'True'

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Vincent Maverick Durano · Accepted Answer · 2018-12-09T20:13:00

Solution 2

The SelectedIndexChanged event will only fire once you set AutoPostback to True. It's false by default.

Posted 9-Dec-18 20:13pm

Vincent Maverick Durano