A bit rusty in C#
I need to pass in a callback to a method:
void InvokeScript(string jsScript, Action<object> resultCallback);
In my class I have created a method to pass in to the method:
public void callback(System.Action<object> resultCallback)
{
}
Error message 1:
Resco.UI.IJavascriptBridge.InvokeScript(string, System.Action<object>)' has some invalid arguments
Error message 2:
cannot convert from 'method group' to 'System.Action<object>'
Thanks in advance
Your callback should be:
public void callback(object value)
You need to make the parameter your passing an object.
Either you create a method matching the signature of the Action<object> delegate, such as
public void someMethod(object parameter) { }
and then pass it,
or you can use a lambda:
InvokeScript("stuff",
param => {
Blah(param);
MoreBlah();
});
Try
Action<object> myCallBack = delegate
{
// do something here
};
InvokeScript("some string", myCallBack);
The method delegate needs to take an object and not return any value. That's what Action<object> means. You can use the built-in Action delegate as I've shown, or you can create a new method and pass it as delegate:
public void MyMethod(object myParameter)
{
// do something here.
}
InvokeScript("some string", MyMethod);
The signature of the callback should be the following:
void MethodName(object parameter);
You also may use lambda expression even without creating a separate method:
InvokeScript(
"some string",
p =>
{
// the callback's logic
});
