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C# Interfaces. Implicit implementation versus Explicit implementation
... = new CustomerComboBoxPresenter(this);
}
protected override void OnLoad() {
if (!Page.IsPostBack) presenter.HandleFirstLoad();
}
// Primary interface used by web page developers
public Guid ClientId {
get { return new Guid(SelectedItem.Value); }
set { S...
Handle file download from ajax post
...uest();
xhr.open('POST', url, true);
xhr.responseType = 'arraybuffer';
xhr.onload = function () {
if (this.status === 200) {
var filename = "";
var disposition = xhr.getResponseHeader('Content-Disposition');
if (disposition && disposition.indexOf('attachment') !==...
Using HTML5/Canvas/JavaScript to take in-browser screenshots
... const result = await new Promise((resolve, reject) => {
video.onloadedmetadata = () => {
video.play()
video.pause()
// from: https://github.com/kasprownik/electron-screencapture/blob/master/index.js
const canvas = document.createElemen...
'UserControl' constructor with parameters in C#
...it is also generally a good idea to put lengthy initialization code in the OnLoad() method, especially since the DesignMode property will work at load time, but not work in the constructor.
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Google Maps: how to get country, state/province/region, city given a lat/long value?
... " + status);
}
});
}
</script>
</head>
<body onload="initialize()">
</body>
</html>
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How do I pass variables and data from PHP to JavaScript?
... }
var oReq = new XMLHttpRequest(); // New request object
oReq.onload = function() {
// This is where you handle what to do with the response.
// The actual data is found on this.responseText
alert(this.responseText); // Will alert: 42
};
oReq.open("get", ...
How can I handle time zones in my webapp?
...p 1. Use the Geolocation of the user using the Geolocation API
window.onload = getMyLocation;
function getMyLocation() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(displayLocation);
} else {
alert("Oops, no geolocation supp...
Ways to circumvent the same-origin policy
...Request("get", "http://www.stackoverflow.com/");
if (request){
request.onload = function() {
// ...
};
request.onreadystatechange = handler;
request.send();
}
Note that for the CORS method to work, you need to have access to any type of server header mechanic and can't simp...
Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the La
...usly, so it doesn't lag
// the web application
var a = new FileReader();
a.onload = function(e) {
// Capture result here
console.log(e.target.result);
};
a.readAsDataURL(blob);
Allowing user to save data
Apart from obvious solution - opening new window with your dataURL as URL you can d...
list every font a user's browser can display
...cument.write( rgFonts[j] + "<BR>" );
}
</SCRIPT>
<BODY onload="getFonts()">
<OBJECT id=dlgHelper CLASSID="clsid:3050f819-98b5-11cf-bb82-00aa00bdce0b" width="0px" height="0px">
</OBJECT>
sh...