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ABAPCONTROLS_TABLEVIEW - CONTROLS TABLEVIEW
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CONTROLS, TYPE TABLEVIEW
CONTROLS contrl TYPE TABLEVIEW USING SCREEN dynnr.
Effect
Declares a table control. If the type TABLEVIEW is specified in the statement CONTROLS, a deep structure is created with the name of the control and the type cxtab_control of the type pool CXTAB. In dynpro processing, the components of the structure contain the attributes of the table control. Using this structure, the attributes of the relevant table control can be changed and read.
At the top level, the deep structure cxtab_control contains components for the general attributes of the table control. The component cols is an internal table of the structure cxtab_column and contains the attributes of individual columns. The structure cxtab_column contains a structured component SCREEN of the type SCREEN. This component contains the attributes of the screen element of each column. Apart from the component current_line, all components of the structure cxtab_control can be set in the ABAP program.
dynnr expects the number of a dynpro on which a table control with the name contrl is
defined. A literal or a constant of the type n with length 4 can be specified for dynnr. When a dynpro in which a table control called contrl is defined is called for the first time, the
start values
of certain components of the structure are taken from the definition of the table control whose dynpro is specified after USING.
The Structure cxtab_control
| Component | Meaning |
| fixed_cols | Number of lead columns. The start value is taken from the definition of the table control in the dynpro dynnr. |
| LINES | Controls the vertical scroll bar of the table control. If the LOOP is executed in the dynpro flow logic without reference to an internal table, that start value of LINES is 0 and must be set in the program so that the scroll bar can be used. With reference to an internal table, LINES is set to the current number of lines in the internal table if the table control is being processed for the first time. However, since this event is not defined, the value of LINES should also be explicitly set to the number of lines of the internal table before the PBO processing in this case. |
| top_line | Top displayed line for next PBO. Set at time of PAI by the position of the vertical slider box. |
| current_line | Current line during a LOOP in the dynpro flow logic. If the addition FROM of the statement LOOP is not specified, the value of current_line corresponds to the result of sy-stepl + (top_line - 1). |
| left_col | Number of first horizontally scrollable column displayed after the lead columns. Is set at time of PAI by the position of the horizontal slider box. |
| line_sel_mode | Line selection mode: "0" if no lines can be selected, "1" if one line, "2" if multiple lines. The start value is taken from the definition of the table control in the dynpro dynnr. |
| lcol_sel_mode | Column selection mode: "0" if no columns can be selected, "1" if one column, "2" if multiple columns. The start value is taken from the definition of the table control in the dynpro dynnr. |
| line_selector | Flag ("X" or " ") indicating whether there is a selection column. The start value is taken from the definition of the table control in the dynpro dynnr. |
| h_grid | Flag ("X" or " ") indicating whether there are horizontal separators. The start value is taken from the definition of the table control in the dynpro dynnr. |
| v_grid | Flag ("X" or " ") indicating whether there are vertical separators. The start value is taken from the definition of the table control in the dynpro dynnr. |
| cols | Control table for individual columns of the structure cxtab_column. |
| invisible | Flag ("X" or " ") indicating whether the table control is visible in the GUI window. |
The Structure cxtab_column
| Component | Meaning |
| screen | Structure for the attributes of the screen element of the current column. The components can be set for the values described there either directly or using MODIFY SCREEN. MODIFY SCREEN overwrites a direct assignment. |
| index | Current position of the column in the table control. The start value is taken from the definition of the table control in the dynpro dynnr. Is set to current value at time of PAI. |
| selected | Flag ("X" or " ") indicating whether the column is selected. Is set to current value at time of PAI. |
| vislength | Visible length of the column. Start value is taken from the definition of the table control in dynpro dynnr. |
| invisible | Flag ("X" or " ") indicating whether the column is visible in the table control. |
Notes
- In a table control, it is possible to scroll vertically using a scroll bar if the component LINES of the structure cxtab_control was set to the correct line number before the PBO processing of the table control. Every time the scroll bar is scrolled, the event PAI is raised with an empty function code and the component top_line of the structure cxtab_control is automatically set to the new top line before PBO.
- For program-driven scrolling, it is sufficient to assign a value to the component top_line
of the structure cxtab_control during PBO processing. When scrolling by page, the number of lines scrolled can be taken from the system field sy-loopc in
loop executions. sy-loopc contains the number
of currently displayed lines and the component LINES of the structure cxtab_control contains the number of lines in the entire table control.
Example
If a table control is defined on the dynpro with the number 100 and the lines of this table control are defined with reference to the DDIC database table SPFLI in the ABAP Dictionary, the corresponding programming of the ABAP program can be as follows. In a PBO module prepare_tab, an internal table spfli_tab is filled with data from the database table. The number of lines of spfli_tab is assigned to the component lines of the structure flight_tab created using CONTROLS to activate the scroll bar of the table control. In a PAI module modify_tab, the line of the internal table is modified whose primary table key matches that of the interface work area spfli defined using TABLES. The PAI module modify_tab is called for every displayed line of the table control. The corresponding dynpro flow logic can be seen in the example for LOOP.
CL_GUI_FRONTEND_SERVICES - Frontend Services Addresses (Business Address Services)
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