Call C# code behind function from programatically created button

Question

In my webform I created button from my code behind:

Button btnShowCase = new Button();
btnShowCase.ID = "btnShowCase_" + ticketNumber;
btnShowCase.CssClass = "BtnShowCase";
btnShowCase.Text = "Display";
btnShowCase.OnClientClick = "ShowCase";

On client click I want to execute function

protected void ShowCase(object sender, EventArgs e)
{
Do something
}

OnClientClick do not call ShowCase. What I am doing wrong?

John Wu · Accepted Answer · 2017-05-11 17:00:17Z

5

Instead of

btnShowCase.OnClientClick = "ShowCase";

Try

btnShowCase.OnClick += ShowCase;

ClientClick invokes Javascript that runs within the browser; the string argument is the name of a Javascript function. Click causes a postback and invokes a server-side method; the argument is a method that matches the delegate for the event type.

edited May 11, 2017 at 17:00

answered May 11, 2017 at 15:05

John Wu

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2 Comments

Arkady Karasin Over a year ago

When tried OnClick, I got error: button.onclick inaccesible duo to its protection level. I tried this: 'btnShowCase.Click += new EventHandler(ShowCase);'

Arkady Karasin Over a year ago

Unfortunately never arrived to Showcase function. in Crome dev tools on client it is appear like this: href="javascript:__doPostBack('btnShowCase_CAS-17125','')"

ThePerplexedOne · Accepted Answer · 2017-05-11 15:06:32Z

-1

OnClientClick is an event handler, and should be set like this:

btnShowCase.OnClientClick += "ShowCase";

instead of

btnShowCase.OnClientClick = "ShowCase";

answered May 11, 2017 at 15:06

ThePerplexedOne

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