Can a JavaScript function be handed to a constructor for an event handler?

Question

Can a JavaScript function be handed to a constructor for an event handler?

The JavaScript function provided:

function ShowFax() {
    $.ajax({
        type: "POST",
        contentType: "application/json; charset=utf-8",
        url: "WebServices/SendFaxService.asmx/SaveFaxData",
        data: "{}",
        dataType: "json",
        success: function (data) {
            $('#<%=cSendFax.FindControl("dDIVFax").ClientID %>').show();
        },
        error: function (result) {
            alert("Error");
        }
    });
}

Should be included as a parameter in the event handler constructor below:

Navigation.PHQ2_SendFax += new Navigation.CommunicationsEventHandler();

javascript c#asp.net

Answer 1

Answer №1

One way to easily incorporate a function as an argument is by referencing the function's name directly:

EventManager.notify += new EventManager.EventHandler(DisplayNotification);

Alternatively, you can assign the function to a variable and then call it using that variable:

EventHandler = function(action)
{
    action();
}

Answer 2

One way to easily incorporate a function as an argument is by referencing the function's name directly:

EventManager.notify += new EventManager.EventHandler(DisplayNotification);

Alternatively, you can assign the function to a variable and then call it using that variable:

EventHandler = function(action)
{
    action();
}

Answer 3

Answer №2

My unconventional solution to the problem was to create a method in the code behind that calls a JavaScript function, which I then used as an argument.

Here is the code for the method in the code behind:

protected void ShowFax(object sender, EventArgs e)
{
    Page.ClientScript.RegisterStartupScript(this.GetType(), "", "ShowFax();", true);
}

And here is how I set up the Event Handler constructor:

Navigation.PHQ2_SendFax += new Navigation.CommunicationsEventHandler(ShowFax);

Answer 4

My unconventional solution to the problem was to create a method in the code behind that calls a JavaScript function, which I then used as an argument.

Here is the code for the method in the code behind:

protected void ShowFax(object sender, EventArgs e)
{
    Page.ClientScript.RegisterStartupScript(this.GetType(), "", "ShowFax();", true);
}

And here is how I set up the Event Handler constructor:

Navigation.PHQ2_SendFax += new Navigation.CommunicationsEventHandler(ShowFax);

Can a JavaScript function be handed to a constructor for an event handler?

Answer №1

Answer №2

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