ASP.Net DropDownList event handler even when user selects the same item

Question

I have a DropDownList that allows users to make selections. These selections result in a table being populated.

This all works fine when users select different values. However, I woudl like to refresh the table even when the user selects the same value.

Does anyone know what event on the ASP.Net DropDownList that I can use for this?

My DropDownList looks like:

<asp:DropDownList ID="ddlClient" runat="server" AutoPostBack="True">
    <asp:ListItem Value="1">1</asp:ListItem>
    <asp:ListItem Value="2">2</asp:ListItem>
    <asp:ListItem Value="3">3</asp:ListItem>
    <asp:ListItem Value="4">4</asp:ListItem>
</asp:DropDownList>

Thanks
Alan

Akram Shahda · Accepted Answer · 2011-05-25T08:19:55.047

1

You can place a refresh Button next to the DropDownList and write your logic inside its Click event handler too.

It would be easier to the user to click the Button than selecting the same item from the DropDownList.

edited May 25 '11 at 08:19

answered May 25 '11 at 07:54

Akram Shahda

14,655
4
45
65

Out of the answers linked below and this question, this is the best answer. ie: It cannot be done directly via asp.net and code-behind as there is no trigger to issue a postback. The user has to click something else to force the dropdownlist to "reset". – Fandango68 Jun 25 '15 at 04:00

score 0 · Answer 2 · edited May 23 '17 at 11:44

0

Here is your answer:

DropDownList annoyance: same value won't trigger event

edited May 23 '17 at 11:44

Community

1
1

answered May 25 '11 at 07:53

Alex Aza

76,499
26
155
134

Thanks but my values are all unique. In my case when the user selects "option 1" then clicks "option 1" again I want the event handler for the DropDownList to be triggered. – May 25 '11 at 08:00

ASP.Net DropDownList event handler even when user selects the same item

2 Answers2