Question

I have a dynamically created table and in some of the cells i have an image button associated with the redBall_Click() handler

(here is the code behind)

    TableCell cellOK = new TableCell();     cellOK.Style.Add(HtmlTextWriterStyle.TextAlign, 'Center');     cellOK.Width = new Unit('3%');     ImageButton redBall = new ImageButton();     redBall.CausesValidation = false;     redBall.ID = id;     redBall.ImageUrl = '~/App_Themes/DotRed.png';      redBall.Click += new ImageClickEventHandler(redBall_Click);     cellOK.Controls.Add(redBall); 

My problem is that the redBall_Click() method is never called (neither after the PostBack)

How can i solve this?

P.S. : I can’t use a static link because every ImageButton is associated with a specific ID that i must pass to the page i call (for example as a Session object)

Answer 1

I finally resolved (just yesterday).

I guess I was building my buttons too late: in the Page_PreRender (after the event was to be fired) maybe if i put the creation in Page_Load (yes, I create everything also on PostBack) it would handle the click, but I think I won’t try since I found a workaround.

I’ll explain for anyone who could have the same problem:

private TableCell cellOK(string id) {     TableCell cellOK = new TableCell();     cellOK.Style.Add(HtmlTextWriterStyle.TextAlign, 'Center');     Image redBall = new Image();     redBall.ID = id; // useless     redBall.ImageUrl = 'redball.gif';     HyperLink hl = new HyperLink();     hl.Controls.Add(redBall);     hl.NavigateUrl = MyPage + '?id=' + id;     cellOK.Controls.Add(hl);     return cellOK; } 

and in Page_Init()

string m_QueryStringId = Request.QueryString.Get('id'); if (!string.IsNullOrEmpty(m_QueryStringId)) {     // Do something }