Hello,

Here is a very simple sample, please try it out:

namespace WindowsFormsApplication409
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            ultraGrid1.CreationFilter = new CF();
        }
    }

    class CF : IUIElementCreationFilter
    {
        public void AfterCreateChildElements(UIElement parent)
        {
            if (parent is CellUIElement)
            {
                if (((CellUIElement)parent).Cell.Column.Index == 0)
                    parent.Rect = new Rectangle(parent.Rect.X, parent.Rect.Y, 20, parent.Rect.Height);
            }
        }

        public bool BeforeCreateChildElements(UIElement parent)
        {
            return false;
        }
    }
}

Also, please take a look at the following link:

Hello,

After some research, the "Ability to resize each column regardless of same "spanX" in RowLayout with CardView" has been determined to be a new product idea. I have sent your idea directly to our product management team.

Our product team chooses new ideas for development based on popular feedback from our customer base. Infragistics continues to monitor application development for all of our products, so as trends appear in requested features, we can plan accordingly.

We value your input, and our philosophy is to enhance our toolset based on customer feedback. If your idea is chosen for development, you will be notified at that time.

Your reference number for this product idea is PI13010097.