Velocity Reviews

Velocity Reviews (http://www.velocityreviews.com/forums/index.php)
-   ASP .Net (http://www.velocityreviews.com/forums/f29-asp-net.html)
-   -   Dynamic Buttons and Event Handlers, revisited (http://www.velocityreviews.com/forums/t58064-dynamic-buttons-and-event-handlers-revisited.html)

Boban Dragojlovic 06-24-2003 01:51 PM

Dynamic Buttons and Event Handlers, revisited
 
The Concept:

I dynamically create an HTML table (with many rows) each with its own
button. When the user clicks on the button, I wan't to know which row's
button they clicked.


The Details:

On the initial pass through a page (e.g. when NOT Page.isPostBack) I read a
SQL table, and for each row in the table I create a dynamic row in an HTML
table, including a button. I also assign an event handler for the new
button

b = New Button
b.Text = "Select"
b.ID = "btnSelect" & iCount
AddHandler b.Click, AddressOf SelectRow

I also record how many buttons I created in the ViewState.

When the page is posted back (within Page_Init), I recreate the buttons,
including the event handler, as follows:

For i = 1 To CInt(ViewState("nbrButtons"))
b = New Button
b.ID = "btnSelect" & i
AddHandler b.Click, AddressOf SelectRow
Next i

Yet in spite of this, I can never get the SelectRow event handler to fire.






All times are GMT. The time now is 08:57 PM.

Powered by vBulletin®. Copyright ©2000 - 2013, vBulletin Solutions, Inc.
SEO by vBSEO ©2010, Crawlability, Inc.