Attributes do not respond in Button event

supergq

I wrote the following code in the Button_onclick event:
Button btnDel = (Button) sender;
Response.Write ("<script language = javaScript> alert ('hhh'); </ script>");
// This sentence can pop up a dialog box
btnDel.Attributes ["onclick"] = "alret ('AAA')";
// but this sentence does not work

Later, I wrote <script language = javaScript> alret ("AAA_2") </ sript> on the client
Result: The "AAA_2" dialog box pops up first, and the dialog box in the click event can pop up.
What is the problem ???

3521565

btnDel.Attributes ["onclick"] = "alret ('AAA')";
 Be sure to put this sentence on PAGELIAD! Ispostback
  Inside, there must be JS code in the front desk

Can be written directly in! ISPOSTBACK of PAGELOAD

btnDel.Attributes ["onclick"] = "<script language = javaScript> alert ('hhh'); </ script>";

tmdakl

btnDel.Attributes ["onclick"] = "alret ('AAA')";
// but this sentence does not work

Because you wrote it wrong, alret was changed to alert

zhoujiyuxs

Apply ATTRIBUITE's ADD method! !! !! Of course, you can't pass values ​​directly.

akwarn

btnDel.Attributes.Add ("onclick", "alert ('AAA')")
Put this in the page_load event! !!

boy_dog

Response.Write("<script language='JavaScript'>alert('Please enter the category name!');window.location='setmenu.aspx';</script>")