Avoiding the __doPostBack function from triggering to the server prior to the completion of the entire page load

Question

Avoiding the __doPostBack function from triggering to the server prior to the completion of the entire page load

How can I ensure that __doPostBack waits for the page to fully load before sending data to the server?

Our users sometimes click on controls at the top of the page before it is completely loaded, resulting in incomplete form submissions.

I am exploring options with Sys.WebForms.PageRequestManager to possibly add an event handler or configure it in a way that checks if the page is loaded and then waits if not.

This is for an ASP.NET 3.5 application.

One solution could be to have controls call "__doPostBack_WhenLoaded" method that checks and adds the __doPostBack call to the onLoad event if necessary, but I'm hoping for a more efficient approach :).

javascript asp.net

Answer 1

Answer №1

After struggling with extending the PageRequestManager, I had to come up with a unique solution. My approach involved creating a custom __doPostBack function. This function performs checks before either executing the actual function immediately or queuing it for processing upon page load:

    var WebPageFullyLoaded = false;

    $(function() {
        WebPageFullyLoaded = true;
    });
    var oldDoPostBack = __doPostBack;
    __doPostBack = function (eventTarget, eventArgument) {
        if (!WebPageFullyLoaded) {
            $(function () {
                oldDoPostBack(eventTarget, eventArgument);
            });
        }
        else {
            oldDoPostBack(eventTarget, eventArgument);
        }
    }

Answer 2

After struggling with extending the PageRequestManager, I had to come up with a unique solution. My approach involved creating a custom __doPostBack function. This function performs checks before either executing the actual function immediately or queuing it for processing upon page load:

    var WebPageFullyLoaded = false;

    $(function() {
        WebPageFullyLoaded = true;
    });
    var oldDoPostBack = __doPostBack;
    __doPostBack = function (eventTarget, eventArgument) {
        if (!WebPageFullyLoaded) {
            $(function () {
                oldDoPostBack(eventTarget, eventArgument);
            });
        }
        else {
            oldDoPostBack(eventTarget, eventArgument);
        }
    }

Answer 3

Answer №2

Do you have experience with utilizing jQuery? If so, one method to consider is activating the page controls once the document has completed loading.Check out this example on jsfiddle.net

Enabling Page Control

<input type="submit" name="name" id="controlID" disabled="true">

Javascript Snippet

$(document).ready(function(){
    $('#controlID').prop('disabled', false);
});

Answer 4

Do you have experience with utilizing jQuery? If so, one method to consider is activating the page controls once the document has completed loading.Check out this example on jsfiddle.net

Enabling Page Control

<input type="submit" name="name" id="controlID" disabled="true">

Javascript Snippet

$(document).ready(function(){
    $('#controlID').prop('disabled', false);
});

Avoiding the __doPostBack function from triggering to the server prior to the completion of the entire page load

Answer №1

Answer №2

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