events: {
onLoad: Silverlight.createDelegate(scene, scene.handleLoad),
onError: function(sender, args) {
var errorDiv = document.getElementById("errorLocation");
if (errorDiv != null) {
var errorText = args.errorType + "- " + args.errorMessage;
if (args.ErrorType == "ParserError") {
errorText += "<br>File: " + args.xamlFile;
errorText += ", line " + args.lineNumber;
errorText += " character " + args.charPosition;
}
else if (args.ErrorType == "RuntimeError") {
errorText += "<br>line " + args.lineNumber;
errorText += " character " + args.charPosition;
}
errorDiv.innerHTML = errorText;
}
}
}
// 函数对象的定义和取得
Silverlight.createObject = function(events)
{
for (var name in events)
{
if ( events[name])
{
if ( name == "onLoad" && typeof events[name] == "function" && events[name].length != 1 )
{
var onLoadHandler = slEvents[name];
events[name]=function (sender){ return onLoadHandler(document.getElementById(id), userContext, sender)};
}
var handlerName = Silverlight.__getHandlerName(events[name]);
if ( handlerName != null )
{
slProperties[name] = handlerName;
events[name] = null;
}
else
{
throw "typeof events."+name+" must be 'function' or 'string'";
}
}
}
}
for...in 语句
对应于一个对象的每个
，或一个数组的每个元素
，执行一个或多个语句。(可用于遍历对象)
for (variable in [object | array])
statements
参数
variable
必选项。一个变量，它可以是 object 的任一属性或 array 的任一元素。
object, array
可选项。要在其上遍历的对象或数组。
statement
可选项。相对于 object 的每个属性或 array 的每个元素，都要被执行的一个或多个语句。可以是复合语句。
// 在DOM对象Windows对象为临时函数分配名称
Silverlight.__getHandlerName = function (handler)
{
var handlerName = "";
if ( typeof handler == "string")
{
handlerName = handler;
}
else if ( typeof handler == "function" )
{
if (Silverlight._silverlightCount == 0)
{
if (window.addEventListener)
{
window.addEventListener('onunload', Silverlight.__cleanup , false);
}
else
{
window.attachEvent('onunload', Silverlight.__cleanup );
}
}
var count = Silverlight._silverlightCount++;
handlerName = "__slEvent"+count;
window[handlerName]=handler;
}
else
{
handlerName = null;
}
return handlerName;
}