定义格式化的类：

public class EnableFormat : IFormatProvider, ICustomFormatter
{
public object GetFormat(Type formatType)
{
if (formatType == typeof(ICustomFormatter))
{
return this;
}
else return null;
}

public string Format(string format, object arg, IFormatProvider formatProvider)
{
return arg.ToString().Equals("Y") ? "启用" : "停用";
}
}

页面引用：

gridView1.Columns["EnableFlag"].DisplayFormat.FormatType = DevExpress.Utils.FormatType.Custom;

gridView1.Columns["EnableFlag"].DisplayFormat.Format = new EnableFormat();