CODEWITHSUNDEEP
c#wpfxamlstackpanel
Raj De Inno
Raj De Inno

Reputation: 1224

How to remove last children from stack panel in WPF?

I am adding children to my stackpanel dynamically. What I need is, I want to remove the last children for certain scenario. Is there any option to get last children?

Here is my code:

var row = new somecontrol();           
stackpanel.Children.Add(row);

Is there any possible way to remove children.lastOrDefault()?

stackpanel.Children.Last();

Any help would be appreciated. Thanks in advance.

Upvotes: 2

Views: 2887

Answers (1)

Anders
Anders

Reputation: 1643

How about:

if(stackpanel.Children.Count != 0)
    stackpanel.Children.RemoveAt(stackpanel.Children.Count - 1);

...or if you want to use Linq, just use the OfType<> ExtensionMethod. Then you can do whatever with Linq you wish, like LastOrDefault:

var child = stackpanel.Children.OfType<UIElement>().LastOrDefault();
if(child != null)
    stackpanel.Children.Remove(child);

But, the first is probably fastest.

Or you can make your own Extension method, if you want:

class PanelExtensions
{
    public static void RemoveLast(this Panel panel)
    {
        if(panel.Children.Count != 0)
            panel.Children.RemoveAt(panel.Children.Count - 1);
    }
}

Use like this

stackpanel.Children.RemoveLast();

But Like Xeun mentions an MVVM solution with Bindings would be preferable.

Upvotes: 4

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