JPH03116223A - Screen control system for input of variable length data - Google Patents

Abstract

PURPOSE:To prevent the mismatch between a variable length item and the length information by changing the length information on the variable length item during an editing operation. CONSTITUTION:The information on a necessary editing screen is read out of a screen data buffer 4 and displayed 204 on a display device 7. Then the data field position of the editing screen is read out of a screen definition information buffer 5 and a cursor is displayed 205 on the device 7. Then an operator inputs data via a keyboard K/B 8 and rewrites the data on the buffer 4 to carry out the editing 206. In this case, the type of data is acquired from the item definition information on the edited data. If the data shows the length information on the variable length item, the data field number of the variable length item is automatically changed. Thus the mismatch can be prevented between the variable length item and the length information.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to screen control in variable length data input, which displays variable length data on a display device and controls the input when interactive input is performed in a computer system. Regarding the method.

[Prior Art] Conventionally, a screen control method for displaying data on a display device in a computer system and inputting data in an interactive manner from a keyboard (hereinafter abbreviated as K/B) is disclosed in Japanese Patent Laid-Open No. 63-269221. As described, there is an initial screen file that stores the information of the fixed part to be displayed on the screen, and this initial screen file contains information such as the position on the screen of the input item of the screen that is 'RB', the number of digits in the format, etc. The initial screen file is developed into a screen buffer on the main memory of the computer system, the record to be edited is read and displayed on the display device, and then the screen buffer is expanded according to the input from /B. Change the data above.

Editing is performed by repeating the process of displaying on a display device. After editing is completed, the input contents are checked using the field information, and if there are errors in format etc.,
An error message was displayed, and processing such as re-input was performed, and if there were no errors in the input content, the editing result was written to the record to be edited and processing ended.

[Problems to be Solved by the Invention] The above conventional technology does not take into account the fact that the data length to be edited changes, and the length of data to be edited that can be edited with the same initial screen data file and field information file is fixed. There was a problem.

An object of the present invention is to change the length of data to be edited during editing.

A further object of the present invention is to provide a screen control method having a function of creating a variable-length data file to be edited.

[Means for solving the problem] In order to achieve the above purpose, the screen definition information that has information on the position to input data in the screen data that has the data to be displayed on the screen is rephrased during editing. This changes the number of data fields displayed on the display device.

Furthermore, in order to make the data to be edited variable in length, only the data at the data field position on the screen data indicated by the double-sided definition information is extracted to create a data file to be edited.

[Operation] In the present invention, an editing screen is displayed on the display device based on the contents of the one-screen data file, and the screen data is edited by moving the cursor to the data field shown in the screen definition information and inputting from /B. During this editing, the data type is obtained from the item definition information of the edited data, and if it is length information of a variable-length item, the number of data fields of the variable-length item is automatically changed, so it is not a variable-length item. Prevent inconsistencies in length information.

[Example] Hereinafter, an example of the present invention will be described in detail using the drawings. FIG. 1 is an overall configuration diagram according to an embodiment of the present invention. FIG. 2 is a flowchart showing the process flow of the present invention, and the same reference numerals in FIG. 1 represent the same processes.

The screen data file 1 is a file containing information on an editing screen to be displayed on the display device 7.

The screen definition information file 2 is a file having information representing the position of item names, data fields, and data field extension areas on the editing screen of the screen data file 1. The item definition information file 3 is a file containing information such as data type, permissible range, standard data, variable length item name, etc. for each item name on the editing screen of the screen data file 1.

First, screen data, screen definition information, and item definition information are read from screen data file 1, screen definition information file 2, and item definition information file 3, respectively (201,
202, 203), and are developed into a double-sided data buffer 4° screen definition information buffer 5 and an item definition information table 6 on the memory of the computer.

Next, necessary editing screen information is read from the screen data buffer 4 and displayed on the display device 7 (204).

Then, the data field position of the displayed editing screen is read from the screen definition information buffer 5 and displayed on the display device 7.
A cursor is displayed (205). Here, the operator inputs data from /B8, rewrites the data on the screen data buffer 4, and performs editing (206). Then, the permissible value of the edited data is read from the item definition information table 6, the data is checked (207), and it is determined whether the data is invalid or normal (208). If the data is invalid, display a message (
209), the same data is re-inputted.

Next, if the data is normal, it is determined whether the type of edited data is length information of a variable length item.
0), if the type of data edited as a result is length information of a variable-length item, read the variable-length item name from the item definition information table 6, search the screen definition information buffer 5, and set the number of data fields to / The data is changed to the data input from B8 (211).

If it is determined that it is not length information in the determination (210) whether it is length information, or if it is determined that it is length information and the data field is changed (211), editing is continued. If the editing is to be continued, the process from displaying the screen data (204) to changing the data field (211) is repeated.

When finishing the editing, the data at the data field position indicated by the screen definition information buffer 5 is extracted from the screen data buffer 4 to create an editing target data file 9 (21
3) Do. Then, the data in the screen data buffer 4 and the screen definition information buffer 5 are stored in the screen data file 1 and the screen definition information file (214, 215) L. The series of processes ends.

Next, changes in screen data and screen definition information will be explained.

FIG. 3 is a diagram showing an example of an editing screen displayed on the display device 7 using the screen control method of the present invention.

The edit screen is item name 3 where you enter length information for variable length items.
1 and its data field 32, variable length item name 33 and its data field 34, and data field extension area 35.

In the above example of the editing screen, the value of the data field 32 for the length information of the variable length item is set to the initial value by the input from /B8.
The changes in screen data and screen definition information when changing from 3'' to It O++ and 11571 will be explained with reference to FIG.

As shown in (a), when the value of the data field 32 of the item name 31 into which the length information of the variable length item is input is the initial value 1131+, there are three data fields 34 of the variable length item body 33, and the data There are two field expansion areas 35. Also, as shown in (b) at this time, the variable length item of the screen definition information has three pieces of information 41 representing the data field position, and information 4 representing the data field extension area position.
2 is 2 pieces. In this state, the cursor can be moved to the data field 34 of the three variable length items to edit them.

Next, as shown in (c), when the value of the data field 32 of the item name 31 into which the length information of the variable length item is input is changed to 99071 by input from the K/I 38,
Data field 3 of three variable length items in (a)
4 is rewritten to the data field extension area 35, resulting in five data field extension areas 35. At this time again (
As shown in d), the variable length items of screen definition information are shown in (b).
In the step, information 41 representing the positions of three data fields is rewritten to information 42 representing the positions of five data field extension areas. In this state, the variable length item does not have a data field 41, so editing cannot be performed by moving the cursor.

Finally, when the value of the data field 32 of the item name 31 for inputting the length information of the variable length item is changed to 5'' by the input from /B8, the data of the five variable length items is changed in (C). The field extension area 35 is rewritten into data fields 34 for five variable length items.At this time, standard data for variable length items is read from the item definition information table 6 and written in the data field 34 for variable length items. At this time, as shown in (f), in the variable length item of the one-screen definition information, the information 42 representing the five data field extension area positions is rewritten in (d) to the information 41 representing the five data field positions. In this state, the cursor can be moved to the data field 41 of the five variable length items and edited.

As described above, according to the present invention, by changing the data length information during editing, the number of data fields of a variable length item can be automatically changed.

In addition, it is possible to extract only necessary data from the data field of variable length items and create a data file to be edited.

[Effects of the Invention] According to the present invention, by changing the length information of the variable-length item during editing, the number of data fields of the variable-length item is automatically changed. This has the effect of preventing inconsistencies.

Another advantage is that it is possible to extract only necessary data from the data fields of variable-length items and create a data file to be edited whose size is minimized.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the overall configuration of an embodiment of the present invention, FIG. 2 is a flowchart showing the flow of processing in the present invention, and FIG. 3 explains an example of an editing screen displayed on the display device 7 in the present invention. FIG. 4 is a diagram for explaining changes in screen data and screen definition information in the present invention. 1...Screen data file, 2...Screen definition information file, 3...Item definition information file, 4...Screen data buffer. 5...Screen definition information buffer, 6...Item definition information table, 7...Display device, 8...K/B. 9...Data file to be edited. Figure Figure Figure Figure Screen Data Screen Definition Information (a) (b) (c) (d) (e) (f)

Claims (1)

[Scope of Claims] 1. In a screen control method for controlling a screen displayed on the display device of a system that is equipped with a display device and inputs and outputs data in an interactive manner with an operator, various types of screens displayed on the display device are provided. a screen definition information file that has information on the positions of input item names, data fields, data field extension areas, etc. on the screen corresponding to the various screens of the screen data file; An item definition information file containing information representing the type of data, permissible range, etc. for each input item on each screen of the data file, and an editing screen selected from the screen data file are displayed on the display device to display variable length items and their lengths. variable-length item, characterized in that it is comprised of an application program that executes a process of displaying length information and changing the number of data fields in screen definition information of the variable-length item when the length information is changed by input from a keyboard. Screen control method for data entry. 2. The variable length data according to claim 1, characterized by having a function of extracting variable length data of the data field from the screen data file and creating a variable length editing target data file. Screen control method for input.