Confirmation on Dropdownlist in asp.net

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Hi guys,

in my asp.net project,

I have added some code for 'Confirmation on Dropdowlist'

Mycode:

<asp:DropDownList ID="ddlCompleted" runat="server" Width="70px" AutoPostBack="true"
                                                    CausesValidation="true" ValidationGroup="complete" OnSelectedIndexChanged="SelectedIndexChanged">
                                                    <asp:ListItem Value="0" Text="No"></asp:ListItem>
                                                    <asp:ListItem Value="1" Text="Yes"></asp:ListItem>
                                                </asp:DropDownList>
                                                <script type="text/javascript">
                                                    function ConfirmDropDownValueChange(source, arguments) {
                                                        arguments.IsValid = confirm("Once the Job: Completed, it Can't be Edit or Delete!");
                                                    }
                                                </script>
                                                <asp:CustomValidator ID="ConfirmationCumstomValidator" runat="server"
                                                 ClientValidationFunction="ConfirmDropDownValueChange" Display="Dynamic" 
                                                 ValidationGroup="complete" />

the problem here is,
on the confirmation message,
if i click on 'cancel' it is making the ddl on 'yes' instead of 'no'.

the logic is as: on the confirmation message box,
if i click on 'ok' then the ddl should be 'yes'
if i click on 'cancel' then the ddl should be 'no'[i mean, no changes in the ddl index]

can anyone plz help me.

Thanks

Posted 4-Aug-14 22:31pm

abdul subhan mohammed

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**Jaimin H. Soni** · Answer 1 · 2014-08-04T23:14:00

use some javascript like...
function handleChange(opt) {
if (!confirm('are you sure')) {

JavaScript

opt.selectedIndex = opt.oldIndex;
}
else {
__doPostBack('YourDropDown','')
}
}
and set the client side events like so....

this.YourDropDown.Attributes["onChange"] = "handleChange(this)";
this.YourDropDown.Attributes["onFocus"] = "this.oldIndex = this.selectedIndex";

Gihan Liyanage · Answer 2 · 2014-08-04T23:21:00

Solution 2

Please see the example, It may help you.

http://aspforums.net/Threads/958815/Display-Server-Side-Yes-No-Confirmation-Box-on-DropDownList-SelectedIndexChanged-in-ASPNet/[^]

Posted 4-Aug-14 23:21pm

Gihan Liyanage

ClimerChinna · Answer 3 · 2014-08-05T20:11:00

replace your code with below code it will work,

problem is you need to set EnableViewState property to true.

XML

<asp:DropDownList ID="ddlCompleted" runat="server" Width="70px" AutoPostBack="true" EnableViewState="true"
                                                    CausesValidation="true" ValidationGroup="complete" OnSelectedIndexChanged="SelectedIndexChanged">
                                                    <asp:ListItem Value="0" Text="No"></asp:ListItem>
                                                    <asp:ListItem Value="1" Text="Yes"></asp:ListItem>
                                                </asp:DropDownList>
                                                <script type="text/javascript">
                                                    function ConfirmDropDownValueChange(source, arguments) {
                                                        arguments.IsValid = confirm("Once the Job: Completed, it Can't be Edit or Delete!");
                                                    }
                                                </script>
                                                <asp:CustomValidator ID="ConfirmationCumstomValidator" runat="server"
                                                 ClientValidationFunction="ConfirmDropDownValueChange" Display="Dynamic"
                                                 ValidationGroup="complete" />

Confirmation on Dropdownlist in asp.net

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