RadPropertyGrid visual configuration

Hi Carl,

1. The white space on the left is reserved for the expander element that only appears on complex properties (classes, structs - e.g. Padding or Size). You can remove it by setting el.ExpanderElement.Visibility to ElementVisibility.Collapsed. Be aware that by disabling the expander element you are only able to expand any complex property via the context menu. If you disable both, you are not able to expand it, at all.

2. You need to also set el.TextElement.DrawFill to true in order to draw the elements background. Then you can/should adjust the corresponding GradientStyle. Be aware that by enabling the elements background you need to handle the mouse hover background yourself via further events.

3. I don't see a vertical ellipse in your screenshot. If you mean the 3 vertical dots, they are indicating that a change has been made on the corresponding property.

Code:

// override the forms OnLoad() method
protected override void OnLoad(EventArgs e) {
  base.OnLoad(e);

  // assign the form to the property grid to use/adjust its properties
  propertyGrid.SelectedObject = this;

  // format the property grid items
  propertyGrid.ItemFormatting += (sender, e) => {
    if (e.VisualElement is PropertyGridItemElement element) {
      element.ExpanderElement.Visibility = ElementVisibility.Collapsed;
      element.TextElement.BackColor      = Color.FromArgb(255, 36, 0, 0);
      element.TextElement.DrawFill       = true;
      element.TextElement.ForeColor      = Color.FromArgb(255, 180, 200, 220);
      element.TextElement.GradientStyle  = GradientStyles.Solid;
    }
  };
}

Here, I adjusted the MinimumSize which results in the "3 dots change indicator" for the MinimumSize property.

Hello Carl,

@M. S., the provided information is greatly appreciated. 

@Carl, for questions 1 and 2 you can use the approaches above that M.S gave. Setting the DrawFill property indicates whether the element should paint its background. To remove the white space that appear on the left before the text element you can manage the ExpanderElement.Visibility. 

3. If I understand you correctly you would like to remove the three vertical dots that appear after a current cell is edited. The following code snippet demonstrates how you can achieve this:

private void RadPropertyGrid1_ItemFormatting(object sender, PropertyGridItemFormattingEventArgs e)
{
    PropertyGridItemElement el = e.VisualElement as PropertyGridItemElement;

    if (el.IsModified == true)
    {
        el.ExpanderElement.IsExpanded = false;
        PropertyGridTextElement textElemet = el.TextElement as PropertyGridTextElement;
        textElemet.PropertyValueButton.Visibility = ElementVisibility.Collapsed;
    }
}

You can refer to the following article for more information: Customization - RadPropertyGrid - Telerik UI for WinForms 

I hope this information helps. If you have any other questions, please don't hesitate to contact me. 

Regards,
Nadya
Progress Telerik