Gets or sets the caption for the New button in a System.Web.UI.WebControls.CommandField field.
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When the ButtonFieldBase.ButtonType property of a System.Web.UI.WebControls.CommandField object is set to ButtonType.Button or ButtonType.Link, use the CommandField.NewText property to specify the text to display for the New button.
As an alternative to displaying text for the New button, you can display an image by first setting the ButtonFieldBase.ButtonType property to ButtonType.Image and then setting the CommandField.NewImageUrl property.
The value of this property, when set, can be saved automatically to a resource file by using a designer tool. For more information, see System.ComponentModel.LocalizableAttribute and ASP.NET Globalization and Localization.