aspnet confirmation from Client

[sweetpotatop]

Hi,

I have a page written in C# asp.net, which allow users to select and
delete records.

Once user selects the record to be deleted, I will confirm with the
user, something like "Are you sure you want to delete the selected
records?"

If yes, I will go and delete the record from SQL. How can this
confirmation and deleting process be done?

From what I understand, I need javascript to confirm with the user,

but then how can I transfer the response back to the server and delete
those selected records from the server?

Thanks in advance. Your advice and help would be greatly appreciated.

 

[Mark Rae [MVP]]

I have a page written in C# asp.net, which allow users to select and
delete records.

How are the records presented to the user?

Once user selects the record to be deleted, I will confirm with the
user, something like "Are you sure you want to delete the selected
records?"

If yes, I will go and delete the record from SQL. How can this
confirmation and deleting process be done?

<asp:Button ID="MyButton" runat="server" Text="Delete"
OnClick="MyButton_Click" OnClientClick="return confirm('Are you sure you
want to delete this record?');" />

but then how can I transfer the response back to the server and delete
those selected records from the server?

That's what a postback is for... When the user clicks the above button, a
JavaScript alert will ask them to confirm that they want to continue. If
they don't, nothing further will happen. If they do, the server-side
MyButton_Click event will fire - that's where you write the code to delete
the record...

 

[sweetpotatop]

How are the records presented to the user?



<asp:Button ID="MyButton" runat="server" Text="Delete"
OnClick="MyButton_Click" OnClientClick="return confirm('Are you sure you
want to delete this record?');" />


That's what a postback is for... When the user clicks the above button, a
JavaScript alert will ask them to confirm that they want to continue. If
they don't, nothing further will happen. If they do, the server-side
MyButton_Click event will fire - that's where you write the code to delete
the record...

The button is setup in the way that you described above. But how do I
get the return value from the server side? What variable does the
return value go?

 

[Mark Rae [MVP]]

The button is setup in the way that you described above. But how do I
get the return value from the server side? What variable does the
return value go?

What return value are you talking about...?

 

[sweetpotatop]

What return value are you talking about...?

Return value is the actual response from the user, e.g "Yes" to
delete , or "No" (client-side respond)

Since I am going to delete the record from the server-side, is there a
server-side variable that capture the respond from the user (client-
side)?

 

[Mark Rae [MVP]]

Return value is the actual response from the user, e.g "Yes" to
delete , or "No" (client-side respond)

OnClientClick="return confirm('Are you sure...?');

Note the word "return" before "confirm"...

Since I am going to delete the record from the server-side, is there a
server-side variable that capture the respond from the user (client-
side)?

None is needed - if the user chooses not to continue, the postback doesn't
happen...