children – Tarik Billa

WPF Canvas, how to add children dynamically with MVVM code behind

January 4, 2024 by Tarik

ItemsControl is your friend: <Grid> <Image Source=”…”/> <ItemsControl ItemsSource=”{Binding Points}”> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <Canvas/> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> <ItemsControl.ItemContainerStyle> <Style> <Setter Property=”Canvas.Left” Value=”{Binding X}”/> <Setter Property=”Canvas.Top” Value=”{Binding Y}”/> </Style> </ItemsControl.ItemContainerStyle> <ItemsControl.ItemTemplate> <DataTemplate> <Border BorderBrush=”Red” BorderThickness=”1″ Width=”{Binding Width}” Height=”{Binding Height}”/> </DataTemplate> </ItemsControl.ItemTemplate> </ItemsControl> </Grid> The above assumes your VM exposes a collection of points via a Points property, and … Read more

CSS hover on a div, but not if hover on his children [duplicate]

January 1, 2024 by Tarik

You can simply achieve this by adding this property to the child class CSS. pointer-events: none; This worked for me.

Why React.Children.only?

December 6, 2023 by Tarik

As pointed out in the docs Verifies that children has only one child (a React element) and returns it. Otherwise this method throws an error. So now why is it helpful over just using props.children? The main reason is it’s throwing an error, thus halting the whole dev flow, so you cannot skip it. This … Read more

How to select first child?

August 21, 2023 by Tarik

In plain JavaScript you would use something like: // Single document.querySelector(“.onediv”).classList.add(“red”); // Multiple (deeply nested) document.querySelectorAll(“.onediv:first-child”).forEach(EL => EL.classList.add(“red”)); Or by Parent Element using Element.firstElementChild: // Single Parent document.querySelector(“.alldivs”).firstElementChild.classList.add(“red”); // Multiple parents document.querySelector(“.alldivs”).forEach(EL => EL.firstElementChild.classList.add(“red”)); jQuery get first child Use: $(“.onediv”).eq(0) Other examples of selectors and methods targeting the first LI inside an UL: Syntax Type … Read more

Suitable environment for a 7 year old [closed]

August 11, 2023 by Tarik

There is actually a browser-based Logo interpreter in Javascript. http://logo.twentygototen.org/

How do I make this loop all children recursively?

June 10, 2023 by Tarik

function allDescendants (node) { for (var i = 0; i < node.childNodes.length; i++) { var child = node.childNodes[i]; allDescendants(child); doSomethingToNode(child); } } You loop over all the children, and for each element, you call the same function and have it loop over the children of that element.

How can I get the child windows of a window given its HWND?

June 7, 2023 by Tarik

Here you have a working solution: public class WindowHandleInfo { private delegate bool EnumWindowProc(IntPtr hwnd, IntPtr lParam); [DllImport(“user32”)] [return: MarshalAs(UnmanagedType.Bool)] private static extern bool EnumChildWindows(IntPtr window, EnumWindowProc callback, IntPtr lParam); private IntPtr _MainHandle; public WindowHandleInfo(IntPtr handle) { this._MainHandle = handle; } public List<IntPtr> GetAllChildHandles() { List<IntPtr> childHandles = new List<IntPtr>(); GCHandle gcChildhandlesList = GCHandle.Alloc(childHandles); IntPtr … Read more

Suggestions on starting a child programming [closed]

May 29, 2023 by Tarik

I would suggest LEGO Mindstorm, it provides an intuitive drag and drop interface for programming and because it comes with hardware it provides something tangible for a child to grasp. Also, because it is “LEGO” they might think of it as more of a game then a programming exercise.

css all divs vs direct child divs

May 10, 2023 by Tarik

Actually I was searching this: Selects the divs that are direct children of Root: .Root > div { border: 1px solid red; } Selects all the divs under Root: .Root div { color:green; }

How to select a node’s first child name? XPath

April 15, 2023 by Tarik

You wrote: I have to select the first child of Department node You could use: /Employee/Department/*[1] Then, you also wrote: I have an XML from which I have to select the name of the child of one of the nodes So, you could use: name(/Employee/Department/*[1])