PropertyInfo[] properties = typeof(BPM_ContractApproval_Purchase).GetProperties();

                foreach (var property in properties)

                {

                    string text = Convert.ToString(property.GetValue(entity));

                    var dingtalkAttribute = property.GetCustomAttribute(typeof(DingTalkFormInfoAttribute)) as DingTalkFormInfoAttribute;

                    if (dingtalkAttribute != null)

                    {

                        var attribute = property.GetCustomAttribute(typeof(DisplayAttribute)) as DisplayAttribute;

                        customeAttribute.Add(new BPM_Attribute_Dto()

                        {

                            Label = attribute != null ? attribute.Name : "",

                            Text = text,

                            OrderIndex = dingtalkAttribute.Index

                        });

                    }

                }