asynchronous, callback, dropdownlist, v2.0

[Alexander Widera]

Hi,

i have 3 DropDownLists which are all bound to a seperate SqlDataSource.
How can I realize the following problem?

The user selects a value from the first dropdownlist... after this the
other
2 dropdownlist should be updated without a PostBack...
They should be updated asynchronous with a callback.

Is this posible?

How?

Thanks a lot.

Alex

 

[Wiktor Zychla [C# MVP]]

i have 3 DropDownLists which are all bound to a seperate SqlDataSource.

How can I realize the following problem?

The user selects a value from the first dropdownlist... after this the
other
2 dropdownlist should be updated without a PostBack...
They should be updated asynchronous with a callback.

Is this posible?

this is possible and, in fact, quite easy. the trick is called "Scripting
Callbacks" and you will easily find docs and references.

Wiktor Zychla

 

[Alexander Widera]

i used now "ajax". thanks a lot.

this is possible and, in fact, quite easy. the trick is called "Scripting
Callbacks" and you will easily find docs and references.

Wiktor Zychla