Hi All,

I tried to change the length and width of the overlayNode with the TextBox's TextChanged event, but an error occurred while running, indicating that the diagram did not seem to be instantiated.
cs:
        private void textBoxW_TextChanged(object sender, TextChangedEventArgs e)
        {
            if (overlayNode == null)
            {
                if (double.TryParse((((TextBox)sender).Text), out overlayNodeHeight))
                {
                    if (((TextBox)sender).Text != overlayNodeHeight.ToString())
                    {
                        ((TextBox)sender).Text = overlayNodeHeight.ToString();
                        ((TextBox)sender).SelectionStart = overlayNodeHeight.ToString().Length;
                    }
                }
                var newBounds = new Rect(0, 0, overlayNodeWidth, overlayNodeHeight);
                overlayNode = diagram.Factory.CreateShapeNode(newBounds);
                diagram.InvalidateForeground();
            }
        }

        private void textBoxH_TextChanged(object sender, TextChangedEventArgs e)
        {
            if (overlayNode == null)
            {
                if (double.TryParse((((TextBox)sender).Text), out overlayNodeHeight))
                {
                    if (((TextBox)sender).Text != overlayNodeHeight.ToString())
                    {
                        ((TextBox)sender).Text = overlayNodeHeight.ToString();
                        ((TextBox)sender).SelectionStart = overlayNodeHeight.ToString().Length;
                    }
                }
                var newBounds = new Rect(0, 0, overlayNodeWidth, overlayNodeHeight);
                overlayNode = diagram.Factory.CreateShapeNode(newBounds);
                diagram.InvalidateForeground();
            }
        }

Any assistance would be appreciated.

Cheers,

JackPan

Yes, you're right. Lyubo.

Indeed, as you said, this method looks flawed because it does not follow my instructions.
I currently want to make the TextBox input the value, the mouse focus leaves the current TextBox will change the length or width of the overlayNode, use two TextBox to complete this operation to change the length and width of the overlayNode. What method is used to achieve it?

Any assistance would be appreciated.

Cheers,

JackPan

Yes, I used the method inside to achieve it.

Thank you, Lyubo.

Cheers,

Jack