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  • Display LOV (List Of Values) Using Show_Lov In Oracle Forms

    Show_Lov Function is used to display list of values (LOV) in Oracle Forms. It returns TRUE if the user selects a value from the list, and FALSE if user not selects the value.

    Syntax

    You can pass the LOV ID to Show_Lov function to display the LOV.

    SHOW_LOV(lov_id LOV);

    You can pass the x and y coordinates with LOV ID to display lov at specific location.

    SHOW_LOV (lov_id LOV, x NUMBER, y NUMBER);

    Display LOV by passing the LOV Name.

    SHOW_LOV (lov_name VARCHAR2);

    By passing LOV Name with X and Y coordinates.

    SHOW_LOV (lov_name VARCHAR2, x NUMBER, y NUMBER);


    Example

    When-Button-Pressed trigger to display LOV (list of values):

    Begin

       If Show_Lov('My_Lov') Then

          Message('Value Choosen.');

       Else

          Message('Value Not Choosen');

       End If;

    End;


    OR

    Declare

    v_choosen boolean;

    Begin

       v_choosen := Show_Lov('My_Lov');

       If v_choosen Then

          Message('Value Choosen.');

       Else

          Message('Value Not Choosen');

       End If;

    End;

     

    Below is the example given to call Show_Lov function by passing LOV ID as parameter, by using Find_Lov and ID_Null functions.

    Declare

    lv_id LOV;

    v_choosen Boolean;

    Begin

    lv_id := Find_LOV('My_LOV');

    If Not Id_Null(lv_id) THEN

    v_choosen := Show_LOV(lv_id,10,20);

     End If;

    If v_choosen Then

        Message('Value Choosen.');

    Else

        Message('Value Not Choosen');

     End If;

    End;

     

     

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  • 原文地址:https://www.cnblogs.com/quanweiru/p/6219379.html
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