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**AssignLeftToBuffer**

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The **AssignLeftToBuffer **method copies the contents of each "left" field to its corresponding "buffer" field in the RealList property.

**Implementation:**

The "left" field is the //first //(left) parameter of the AddPair method. The "right" field is the //second //(right) parameter of the AddPair method. The BufferedPairsClass automatically supplies the "buffer" field.

**Example:**

** Fields.AddPair(CUST:Name,  CustQ.Name)  !establish Name pair**

** Fields.AddPair(CUST:Phone, CustQ.Phone) !establish Phone pair**

** Fields.AddPair(CUST:ZIP,  CustQ.ZIP)    !establish ZIP pair**

** !some code**

** IF ~Fields.EqualRightBuffer             !compare QUEUE fields to save buffer**

**  CASE MESSAGE('Abandon Changes?',,,BUTTON:Yes+BUTTON:No)**

**  OF BUTTON:No**

**   Fields.AssignRightToLeft**

**  OF BUTTON:Yes**

**   Fields.AssignLeftToBuffer**

**  END**

** END**

**See Also:     **[[addpair  add a field pair bufferedpairsclass .htm| AddPair]], [[reallist  recognized field pairs .htm|RealList]]