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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. |
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