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Hide navigation control for better control on flow


Hide navigation control for better control on flow

By : user2954787
Date : November 22 2020, 10:33 AM
I think the issue was by ths following , Is your page rendered inside of a frame? A frame by default supports Navigation. If this is the case you have to set the navigation visibility property of the frame control to hidden.
code :
<Frame Name="Frame1" NavigationUIVisibility="Hidden" >


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Control flow of the try...catch...finally control structure

Control flow of the try...catch...finally control structure


By : user2828180
Date : March 29 2020, 07:55 AM
may help you . I have a try...catch...finally block whose catch rethrows the exception: , Yes, this is the exact purpose that the finally concept was created.
What's the difference between Flow Control and Congestion Control in TCP?

What's the difference between Flow Control and Congestion Control in TCP?


By : Fabricio
Date : March 29 2020, 07:55 AM
seems to work fine As to part 1, super general overview:
Flow control is controlled by the receiving side. It ensures that the sender only sends what the receiver can handle. Think of a situation where someone with a fast fiber connection might be sending to someone on dialup or something similar. The sender would have the ability to send packets very quickly, but that would be useless to the receiver on dialup, so they would need a way to throttle what the sending side can send. Flow control deals with the mechanisms available to ensure that this communication goes smoothly.
How to hide navigation pane in embedded PDF viewer control?

How to hide navigation pane in embedded PDF viewer control?


By : Jhonatan Matias
Date : March 29 2020, 07:55 AM
it should still fix some issue Use a Web Browser Control instead. It will use the systems default PDF application to preview the files.
webBrowserControl.Navigate(filePath & "#toolbar=0&navpanes=0&scrollbar=0")
How to prevent tab navigation to a control, while allowing directional navigation to that control

How to prevent tab navigation to a control, while allowing directional navigation to that control


By : Grzegorz Smoketoomuc
Date : March 29 2020, 07:55 AM
This might help you How about that option. You stick your special button into another container and put KeyboardNavigation.TabNavigation="None" on that container. I've just tried it and it looks like I can achieve what you need.
code :
<StackPanel >
  <Button>Normal 1</Button>
  <StackPanel KeyboardNavigation.TabNavigation="None">
    <Button>Special</Button><!--This button should not tab focus, but still focus via arrow keys-->
  </StackPanel>
  <Button>Normal 2</Button>
</StackPanel>
How to control serial and parallel control flow with mapped functions?

How to control serial and parallel control flow with mapped functions?


By : Khabir Raja
Date : March 29 2020, 07:55 AM
I hope this helps . I've drawn a simple flow chart, which basically crawls some data from internet and loads them into the database. So far, I had thought I was peaceful with promises, however now I have an issue that I'm working for at least three days without a simple step. , Try something like this, if you are able to understand this:
code :
const courseCodes = ["ATA, "AKM", "BLG",... ]

//stores the tasks to be performed.
var parallelTasks = [];
var serialTasks = [];

//keeps track of courses fetched & results.
var courseFetchCount = 0;
var results = {};


//your fetch function.
fetch(course_code){
    //your code to fetch & parse.

    //store result for each course in results object
    results[course_code] = 'whatever result comes from your fetch & parse code...';
}

//your load function.
function loadCourse(results) {
    for(var index in results) {
        var result = results[index]; //result for single course;
        var task = (
            function(result) {
                return function() {
                    saveToDB(result);
                }
            }
        )(result);

        serialTasks.push(task);
    }
    //execute serial tasks for saving results to database or whatever.
    var firstSerialTask = serialTasks.shift();
    nextInSerial(null, firstSerialTask);
}

//pseudo function to save a result to database.
function saveToDB(result) {
    //your code to store in db here.
}

//checks if fetch() is complete for all course codes in your array
//and then starts the serial tasks for saving results to database.
function CheckIfAllCoursesFetched() {
    courseFetchCount++;
    if(courseFetchCount == courseCodes.length) {
        //now process courses serially
        loadCourse(results);
    }
}

//helper function that executes tasks in serial fashion.
function nextInSerial(err, result) {
    if(err) throw Error(err.message);

    var nextSerialTask = serialTasks.shift();
    nextSerialTask(result);
}

//start executing parallel tasks for fetching.
for(var index in courseCode) {
    var course_code = courseCode[index];
    var task = (
        function(course_code) {
            return function() {
                fetch(course_code);
                CheckIfAllCoursesFetched();
            }
        }
    )(course_code);
    parallelTasks.push(task);

    for(var task_index in parallelTasks) {
        parallelTasks[task_index]();
    }
}
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