C#•2y ago

❔ WPF edit Label Content

Hey, I want to set the label on a random position. After this I want to edit the content of the label, buy how can I do that if my label are object or UIElement

foreach (var OR UIElement label in RememberScreen.Children)
                if (typeof(Label).IsInstanceOfType(label))
                {
                    while (true)
                    {
                        // increment i
                        i++;
                        // set position from left
                        posL ......
                        // set position from top
                        posT = .....
                        Debug.WriteLine(posL + " " + posT);

                        if (oldPosT.Contains(posT) != true)
                        {
                            label.Content = $"{i}"; // HERE IS THE ERROR
                            Canvas.SetLeft(labels[i], posL);
                            Canvas.SetTop(labels[i], posT);
                            label.Visibility = Visibility.Visible;
                            // add the position to the list
                            oldPosT.Add(posT);
                            Debug.WriteLine(oldPosT[i]);
                            break;
                        }

foreach (var OR UIElement label in RememberScreen.Children)
                if (typeof(Label).IsInstanceOfType(label))
                {
                    while (true)
                    {
                        // increment i
                        i++;
                        // set position from left
                        posL ......
                        // set position from top
                        posT = .....
                        Debug.WriteLine(posL + " " + posT);

                        if (oldPosT.Contains(posT) != true)
                        {
                            label.Content = $"{i}"; // HERE IS THE ERROR
                            Canvas.SetLeft(labels[i], posL);
                            Canvas.SetTop(labels[i], posT);
                            label.Visibility = Visibility.Visible;
                            // add the position to the list
                            oldPosT.Add(posT);
                            Debug.WriteLine(oldPosT[i]);
                            break;
                        }

Can I replace the label from my canvas with a new label than it's exactly the same with different content?

7 Replies

ero•2y ago

foreach (UIElement element in RememberScreen.Children)
{
  if (element is not Label label)
    continue;

  // do things with `label`
}

foreach (UIElement element in RememberScreen.Children)
{
  if (element is not Label label)
    continue;

  // do things with `label`
}

EinfachNurBaumOP•2y ago

You get only the UIElement of the labels and UIElement has not Content. This is the shit

ero•2y ago

which is why you cast it to Label like i did in the code i sent

EinfachNurBaumOP•2y ago

what? every element is a UIElement, can I just make (Label) like (int) or what do you mean?

ero•2y ago

you can just do what i posted

EinfachNurBaumOP•2y ago

c# is strange but looks like it works but thank you

Accord•2y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ WPF edit Label Content