How to stop GridViewMaskBoxColumn from autofilling the current date?

Hello Mark,

Thank you for the provided details.

In general, the business object property to which the column is pointing needs to accept null values. For example, here is my test class with nullable DateTime property.

public class GridItem 
{
    private DateTime? currentDate;

    public DateTime? CurrentDate
    {
        get { return currentDate; }
        set { currentDate = value;}
    }       
}

Now let's set up the column:

GridViewMaskBoxColumn maskBoxColumn = new GridViewMaskBoxColumn();
maskBoxColumn.Name = "CurrentDate";
maskBoxColumn.FieldName = "CurrentDate";
maskBoxColumn.HeaderText = "Current Date";
maskBoxColumn.MaskType = MaskType.DateTime;
maskBoxColumn.Mask = "d";
maskBoxColumn.EnableNullValueInput = true;
radGridView1.MasterTemplate.Columns.Add(maskBoxColumn);

Upon running the project and deleting the cell value using the CTRL+DEL, the cell becomes null.

You can check in your application if the property which the column is bound for is accepting null values. If yes, can you modify the attached project so that I can have a better look at your set-up you mentioned that you have custom logic in several RadGridView events.

Regards,
Dinko | Tech Support Engineer
Progress Telerik