Inheriting RadTextbox with Multiline problems

[superold]

Hi,

I am upgrading from an old solution, see http://www.telerik.com/community/forums/winforms/ui-controls/labelmultilinetextbox-with-validation.aspx, since this version is missing some functionality which I now need.

My class inherits from RadTextBox where I override CreateChildItems and create my own.

I follow the logic from your source and it all works perfectly. Except the multiline property, how can I implement it?

I use the following controls.

        private readonly RadTextBoxItem textBox = new RadTextBoxItem();

        private readonly TextPrimitive title = new TextPrimitive();

        private readonly TextPrimitive validation = new TextPrimitive();

A cut down version of CreateChildItems

            BoxLayout layoutTexts = new BoxLayout();

            layoutTexts.Orientation = Orientation.Horizontal;

            layoutTexts.StretchVertically = false;  // when true the control is drawn differently

            layoutTexts.Children.Add(title);

            layoutTexts.Children.Add(validation);

            BoxLayout layout = new BoxLayout();

            layout.Orientation = Orientation.Vertical;

            layout.Children.Add(layoutTexts);

            base.InitializeTextElement();

            layout.Children.Add(textBoxElement);

            RootElement.Children.Add(layout);

            Size = new Size(425, 34); // default size

Thanks

- jorge

[Peter]

Hi Jorge Delgado-Lopez,

Thank for writing.

You should set the Control's AutoSize property to false

  public LabelMultilineTextBox()
  {
       this.AutoSize = false;

Also, override InitializeRootElement and set the RootElement's Stretch Property to True

 protected override void InitializeRootElement(RootRadElement rootElement)
 {
       base.InitializeRootElement(rootElement);
       rootElement.StretchVertically = true;
 }

Please refer the attached project.

Greetings,
Peter
the Telerik team

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