CODEWITHSUNDEEP
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BTGMarco
BTGMarco

Reputation: 85

List of elements in a User Control or a Grid

Hello i have an user control and i need all the textbox , buttons, etc from this user control This there a way that i have all this elements? Thanks

Upvotes: 2

Views: 1890

Answers (2)

Brian
Brian

Reputation: 7146

BrokenGlass's method works for sure, but it's a bit obtuse. Here is a simplified way of doing it:

When you create a control in VisualStudio or Blend, generally you're going to get a UserControl with a grid inside.

<UserControl x:Class="RHooligan"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     Height="300" Width="300">
<Grid x:Name="RootElement>

</Grid>

Assuming your UserControl's Root element is a container control (Grid,StackPanel,Canvas, etc) and you've named it RootElement, you can do this to iterate through it's children.

      foreach(FrameworkElement element in RootElement.Children)
  {
    //do something with element
    //////////////////////////
  }

Upvotes: 1

BrokenGlass
BrokenGlass

Reputation: 160952

you can use the VisualTreeHelper to achieve this.

There's an article here that offers the following extension method to help:

public static IEnumerable<DependencyObject> GetVisuals(this DependencyObject root)
{
    int count = VisualTreeHelper.GetChildrenCount(root);
    for (int i = 0; i < count; i++)
    {
        var child = VisualTreeHelper.GetChild(root, i);
        yield return child;
        foreach (var descendants in child.GetVisuals())
        {
            yield return descendants;
        }
    }
}

You can then do the following:

foreach (var control in LayoutRoot.GetVisuals().OfType<Control>())
{
    //handle control of type <Control>
}

Upvotes: 4

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