Suhas,

You can use a mask on the column for when in edit mode to enter the social security number and then use a draw filter to mask the value when it is displayed while the cell isn't in edit mode.

The following is the code that would be used to set up the column for the grid as well as adding the draw filter:

this.ultraGrid1.DataSource = this.GetEmployees(10);
this.ultraGrid1.DrawFilter = new SSNDrawFilter();
UltraGridColumn col = this.ultraGrid1.DisplayLayout.Bands[0].Columns["SSN"];
col.MaskDisplayMode = Infragistics.Win.UltraWinMaskedEdit.MaskMode.IncludeLiterals;
col.MaskInput = "###-##-####";
col.MaskDataMode = Infragistics.Win.UltraWinMaskedEdit.MaskMode.IncludeLiterals;

The following is the implementation of the draw filter:

public class SSNDrawFilter : IUIElementDrawFilter
{
    public bool DrawElement(DrawPhase drawPhase, ref UIElementDrawParams drawParams)
    {
        UltraGridCell cell = drawParams.Element.GetContext(typeof(UltraGridCell)) as UltraGridCell;
        if (cell.Column.Key == "SSN")
        {
            TextUIElement textElement = (TextUIElement)drawParams.Element;
 
            textElement.Text = "*******";
            if (cell.Text.Length > 7)
            {
                textElement.Text += cell.Text.Substring(7);
            }
        }
        return false;
    }
 
    public DrawPhase GetPhasesToFilter(ref UIElementDrawParams drawParams)
    {
        if (drawParams.Element is TextUIElement && drawParams.Element.Parent is MaskedEditUIElement)
            return DrawPhase.BeforeDrawElement;
        return DrawPhase.None;
    }
}

I have also attached a sample that you can reference.