asp.et adding onclick to a button programmatically

Question

I know this question has been asked many times, but I read the answers for other questions and my code still gives me an error

This is my code

Button loadButton = new Button();
                loadButton.Text = "Load";
                loadButton.Click += new EventHandler(this.openOutlook());

private void openOutlook()
        {}

now I got error states method names expected on this line new EventHandler(this.openOutlook());

I tried to add object sender, EventsArg arg to the header of the method.

possible duplicate of How to call Button OnCLick eventhandler in code behind with a value? — npinti
– npinti, Commented Apr 6, 2015 at 10:02
You have 2 problems: 1) Your openOutlook method does not have the signature of openOutlook(object sender, EventArgs e) and when you invoke the method in your event handler, you need to ditch the brackets, since you are passing a function pointer (delegate). — npinti
– npinti, Commented Apr 6, 2015 at 10:04

StuartLC · Accepted Answer · 2015-04-06 10:04:06Z

1

You don't need to explicitly new up the EventHandler - if the target handler method has the appropriate signature, you can add the subscription directly:

loadButton.Click += openOutlook;

private void openOutlook(object sender, EventArgs eventArgs)
{
    // ...
}

answered Apr 6, 2015 at 10:04

StuartLC

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Shyju · Accepted Answer · 2015-04-06 10:04:13Z

1

Try this,

Button loadButton = new Button();
loadButton.Text = "Load";
loadButton.Click += new EventHandler(btnOk_Click);
void btnOk_Click(object sender, EventArgs e)
{

}

When intellisence showing the click event name on button object, press the tab key twice if ur using Visual Studio IDE.

answered Apr 6, 2015 at 10:04

Shyju

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freshbm · Accepted Answer · 2015-04-06 10:07:37Z

0

Try this:

new EventHandler(this.openOutlook);

without parenthesis. Your event handler expects just method name.

and for your method

openOutlook(object sender, EventArgs eventArgs)

edited Apr 6, 2015 at 10:07

answered Apr 6, 2015 at 10:01

freshbm

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2 Comments

Jenish Rabadiya Over a year ago

method also required object sender, EventsArg arg parameters.

freshbm Over a year ago

Please check question as accepted if it helped you.

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