Here is my image tag. The image is graph that is generated dynamically from the database. The amount of data involved can vary by a lot. Sometimes it loads in less than a second and other times it can be up to 6 or 7 seconds until the graph image is returned and displayed. What I want to do is display a simple place holder gif until that actual image in loaded.
<img src="@Url.Action("Graph", new { id = Model.ID })" alt="Graph is Loading..." />
Disregarding your ASP completely, you can add the element with the loader as the source and the real image as a data attribute, then load the image with javascript, and swap images once the real image has loaded:
<img src="loader.gif" data-src="/images/menubar.png" />
JS preloading
$('img').each(function() {
var self = this,
src = $(self).data('src'), // get the data attribute
img = new Image(); // create a new image
img.onload = function() { // onload
self.src = this.src; // swap the source
}
img.src = src; // set source of new image
if (this.complete) $(this).load();
});
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