public DateTimeDisplayFieldCollection DisplayFields {get;}

//  Please use the following namespace
//  using System.Windows.Forms;
//  using GrapeCity.Win.Editors;
//  using System.Drawing;

public void SetAlternateTextSettings()
{
    // Creates an instance of a GcDateTime control.
    GcDateTime GcDateTime1 = new GcDateTime();

    // Clear the default Fields
    GcDateTime1.Fields.Clear();

    // Sets the text of the DisplayNull property.
    // The text will displayed when the GcDateTime control lost focus.
    GcDateTime1.AlternateText.DisplayNull.Text = "Please Input here";
    // Sets the ForeColor of the DisplayNull property.
    // The text will displayed with this color.
    GcDateTime1.AlternateText.DisplayNull.ForeColor = Color.Red;
    // Sets the text of the Null property.
    // The text will displayed when the GcDateTime control got focus.
    GcDateTime1.AlternateText.Null.Text = "Now the value is null";
    // Sets the ForeColor of the Null property.
    // The text will displayed with this color.
    GcDateTime1.AlternateText.Null.ForeColor = Color.Blue;
    // Sets the DisplayEmptyEra.Text to a string for displaying when the value out of the range of Era.
    GcDateTime1.AlternateText.DisplayEmptyEra.Text = "Value is out of Era range.";
    // Sets the EmptyEra.Text to a string with a special format. 
    // The text will display the date time value according to the format "yyy/MM/dd"
    // When the value is out of the range of era, the text will shown like "1009/07/02".
    GcDateTime1.AlternateText.EmptyEra.Text = "{[yyy/MM/dd]}";

    // Defines the fields by format string.
    GcDateTime1.Fields.AddRange(@"ggg ee年MM月dd日 tt h:mm:ss");

    // Defines the display fields by format string.
    GcDateTime1.DisplayFields.AddRange(@"gg e年M月d日 tt h:mm:ss");

    // Set Font of all DateLiteralField instances.
    List<GrapeCity.Win.Editors.Fields.DateLiteralField> literalFields = GcDateTime1.Fields.FindAll<GrapeCity.Win.Editors.Fields.DateLiteralField>();
    foreach (GrapeCity.Win.Editors.Fields.DateLiteralField field in literalFields)
    {
        field.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
    }

    // Sets the value of the GcDateTime to a DateTime value that out of Era.
    GcDateTime1.Value = new System.DateTime(1009, 7, 2, 12, 21, 52, 0);
}