internal override AttributeBinding Evaluate(AjaxPage page)
{
IEnumerable <KeyValuePair <string, object> > arguments = page.Context.Variables.Concat(new KeyValuePair <string, object>[] {
new KeyValuePair <string, object>("$dataItem", page.Context.DataItem),
new KeyValuePair <string, object>("$index", page.Context.Index),
new KeyValuePair <string, object>("$context", page.Context),
new KeyValuePair <string, object>("$id", (Func <string, string>)(id => page.Context.GetInstanceId(id))),
});
if (!isValid)
{
return(new AttributeBinding(Attribute, BindingResult.Invalid));
}
else
{
if (script == null)
{
lock (this)
{
if (script == null)
{
script = new JavaScript.ScriptFunction(Page.ScriptEngineFactory, arguments.Select(a => a.Key), Path);
}
}
}
try
{
return(new AttributeBinding(Attribute, new BindingResult()
{
Value = script.Evaluate(arguments.Select(a => a.Value), Page.ScriptMarshaller), IsValid = true
}));
}
catch
{
isValid = false;
return(new AttributeBinding(Attribute, BindingResult.Invalid));
}
}
}
internal override AttributeBinding Evaluate(AjaxPage page)
{
IEnumerable<KeyValuePair<string, object>> arguments = page.Context.Variables.Concat( new KeyValuePair<string, object>[] {
new KeyValuePair<string, object>("$dataItem", page.Context.DataItem),
new KeyValuePair<string, object>("$index", page.Context.Index),
new KeyValuePair<string, object>("$context", page.Context),
new KeyValuePair<string, object>("$id", (Func<string, string>)(id => page.Context.GetInstanceId(id))),
});
if (!isValid)
return new AttributeBinding(Attribute, BindingResult.Invalid);
else
{
if (script == null)
{
lock (this)
{
if (script == null)
script = new JavaScript.ScriptFunction(Page.ScriptEngineFactory, arguments.Select(a => a.Key), Path);
}
}
try
{
return new AttributeBinding(Attribute, new BindingResult() { Value = script.Evaluate(arguments.Select(a => a.Value), Page.ScriptMarshaller), IsValid = true });
}
catch
{
isValid = false;
return new AttributeBinding(Attribute, BindingResult.Invalid);
}
}
}
