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You will also notice that it lists some fields that you haven"t added. These are system fields. in Software Embed PDF 417 in Software You will also notice that it lists some fields that you haven"t added. These are system fields.

3. use software pdf417 printer toget pdf-417 2d barcode in software 2/5 Industrial You will also notice that it lists some fields that you haven"t added. These are system fields. Field name dataAreaId recVe rsion Information This field will store the company account the record was created in. The first time a record is created it will have record version = 1. Any changes done to the record will cause the recVersion to get a new random integer value.

The field is used to make sure that two processes cannot overwrite the same record. The RecId is a unique identifier set by the system for each table in AX. In older versions, the RecId was unique per company account but from version 4.

0 it was changed to be unique per table. As described in the table properties section, these system fields can be added to a table to see when a record was created or modified and who created or modified it. A transaction ID can also be added for both the creation and modification.

Only the last change to the record will be stored by the modified fields. Optional No No. RecId Modified, Created By/Date Time/ TransId [ 87 ]. Storing Data Relations There are two different way s of creating primary and foreign keys in AX. One of them is to create a relation on an extended data type. This can be done only if the primary key consists of only one field and it should always be used when the key consists of only one field.

The second option was already explained under the Tables section in this chapter. To create a primary key that consists of one field, you have to create an extended data type that will be used for the field in the key. In our example, we will use the EDT created in the previous section.

Expand the extended data type node in the AOT, right-click on the Relations node, and select New . Normal. [ 88 ]. 3 . Open the Properties window and select the table that will host the field as a primary key and the field that represents the primary key as shown below:. Now you can save the extend pdf417 for None ed data type. You have now created a primary key as the field in the table that refers to an extended data type and the extended data type refers back to the field in the table. All other tables that have fields that use this extended data type will now have foreign keys pointing to this primary key.

However, these foreign keys will not be shown in the Table relations list.. Summary. In this chapter, you have r pdf417 2d barcode for None ead about how tables are created in AX, how to set up an extended data type, and how to create fields in tables based on extended data types. You have also read how to enforce referential integrity by adding delete actions, how to create indexes to ensure uniqueness of data, and how to create relations between tables to link related information. You should now be ready to create data storage for your tables in AX and set them up according to best practices.

In the next chapter, you will learn how to create forms that enable users to see data from tables and enter and update data and navigation pages that are used to display data. You will also learn how to create reports in both X++ and by using the .NET and Reporting Services integration in AX.

Finally, you will learn how to create menu items to be used as buttons in forms and as items in menus, and how to create new menus.. [ 89 ]. Data-User Interaction Data is no good unless it c an be entered by, and shown to, the user. In this chapter, you will learn how to create tools for user interaction by creating a form that has both one data source and two data sources related to each other, showing data from both data sources, and linking the report to the selected record in the form by using menu items. You will also be able to create a menu and a navigation page consisting of menu items that will open the form and the report.

The chapter will also show you how to create Reporting Services reports in Visual Studio using the new Reporting Service extensions. We will look at the following topics in this chapter: Forms Reports Menu items Navigation pages Menus.
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