ASP.NET how to call a button web control's OnClientClick event from code-behind (server-side)

1
votes

Using ASP.NET 4.0 (c#), I want to call a button's OnClientClick event from code-behind (server-side). How do I code that in the code-behind file so that when the page is rendered again, the OnClientClick event is fired like the user clicked the button?

2
asp.net

2 Answers

1
votes

Add a little JQuery to the page...

<head>
  <!-- Add the jquery library to your page -->
  <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>          

  <!-- Document.ready runs when the page is loaded -->
  <script type="text/javascript">                                         
    $(document).ready(function () {
      $('#MyButtonID').click();  // Find the button and click it.
    });
  </script>                                                               
</head>
1
votes

Here are two ways to "call" the javascript alert function from code behind. You may be able to replace the alert function with your function:

public static void ShowAlert(Page page, String message)
{
    String Output;
    Output = String.Format("alert('{0}');",message);
    page.ClientScript.RegisterStartupScript(page.GetType(), "Key", Output, true);
}

public static void ShowAlert(HttpResponse response, String message)
{
    String Output;
    Output = String.Format("<Script Language='javascript'> alert('{0}');</script>", message);
    response.Write(Output);
}