UpdatePanel does not start when I press enter

Question

I have a panel with several text fields and a submit button, as well as an update panel that will be activated when the button is clicked.

If I press the button, it will be ok. However, if I click on the control, it returns the whole page.

I set the button as the default button in the panel, but it still returns the whole page. Any ideas?

Answer 1

Setting a single button on a panel by default is always a bit complicated. I saved the method in a shared library just for this problem:

public static void EnterOnKeyDown(WebControl targetControl, WebControl controlToPress)
{
    targetControl.Attributes.Add("onkeydown",
        "if(event.which || event.keyCode){if ((event.which == 13)" +
        "|| (event.keyCode == 13)) {document.getElementById('" +
        controlToPress.ClientID + "').click();return false;}} else {return true};");
}

You can place this method anywhere and call it like this:

EnterOnKeyDown(someTextBoxInYourPanel, yourSubmitButton);

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Answer 2

UpdatePanel :

ChildrenAsTriggers = True UpdateMode = Always

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