若要某程式，勾選A欄位 , 另一個B欄位就不能選擇
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要在 AT SELECTION-SCREEN OUTPUT. 內修改畫面的值
範例：
1.選擇 「Sreach Single Material」時，顯示Material 、 Plant.....等欄位條件，下載格式可選擇「BOM List」或「SAP Upload List」。
1.選擇 「Sreach Single Material」時，顯示Material 、 Plant.....等欄位條件，下載格式可選擇「BOM List」或「SAP Upload List」。
2.選擇「Sreach most of Material」時，下載格式不可選擇「BOM List」或「SAP Upload List」。
首先定義欄位
*=====select-options=====*
<Radiobutton>|
PARAMETERS: p_red3 RADIOBUTTON GROUP rad4 DEFAULT 'X' USER-COMMAND rad, "Sreach
Single Material
p_red4 RADIOBUTTON GROUP rad4 . "Sreach Most of Material
Single Material
p_red4 RADIOBUTTON GROUP rad4 . "Sreach Most of Material
註：記得要在後方加上USER-COMMAND才會啟用喲! 否則需按下ENTER才會動作。
<輸入條件>
PARAMETERS:p_matnr TYPE mast-matnr MODIF ID m5. (MODIF ID M5 為畫面群組)
SELECT-OPTIONS:p_werks FOR mast-werks NO-EXTENSION NO INTERVALS MODIF ID m5,
p_chgrp FOR aenr-aenbe DEFAULT '0100' NO-EXTENSION NO INTERVALS.
SELECT-OPTIONS:p_werks FOR mast-werks NO-EXTENSION NO INTERVALS MODIF ID m5,
p_chgrp FOR aenr-aenbe DEFAULT '0100' NO-EXTENSION NO INTERVALS.
NO-EXTENSION：只能填寫區間
NO INTERVALS：只能多筆填寫
NO-EXTENSION & NO INTERVALS：只能填單筆
後續的欄位就省略囉!接下來要更改畫面
在畫面的迴圈內，使用SCREEN-GROUP1來區分，
用WHEN 'M1'來說明，在M1的群組內，若P_disp1的值為'X'，畫面則隱藏
SCREEN-ACTIVE用來控制畫面的顯示(1)或隱藏(0)
用WHEN 'M6'來說明，在M6的群組內，若P_red4的值為'X'，該畫面反灰不可修改
SCREEN-INPUT用來控制畫面能否修改，反灰(0)，可修改(1)。
AT SELECTION-SCREEN OUTPUT.
LOOP AT SCREEN.
CASE screen-group1.
WHEN 'M1' IF p_disp1 = 'X'. screen-active = '0'.
ELSEIF p_red2 = 'X'. screen-active = '0'.
ELSE. screen-active = '1'.
ENDIF.
WHEN 'M2' IF p_disp1 = 'X'. screen-active = '0'.
ELSEIF p_ext1 = 'X'. screen-active = '0'.
ELSE. screen-active = '1'.
ENDIF.
WHEN 'M3'. IF p_red1 = 'X'. screen-active = '1'.
ELSE. screen-active = '0'.
ENDIF.
WHEN 'M4'. IF p_red2 = 'X'. screen-active = '1'.
ELSE. screen-active = '0'.
ENDIF.
WHEN 'M5'. IF p_red4 = 'X'. screen-active = '0'.
ELSE. screen-active = '1'.
ENDIF.
WHEN 'M6'. IF p_red4 = 'X'. screen-input = '0'.
p_red1 = 'X'.
p_red2 = ''.
ELSE. screen-input = '1'.
ENDIF.
WHEN 'M7'. IF p_red4 = 'X'. screen-active = '1'.
ELSE. screen-active = '0'.
ENDIF.
ENDCASE.
MODIFY SCREEN.
ENDLOOP.
結果畫面
