In a way, the DataSourceView provides the structure of the data for the data-bound control. The corresponding methods are: Insert, Select, Update, and Delete. A DataSourceView provides create, read, update, and delete (CRUD) operations for working with the underlying raw data. Creating a custom data-bound control will probably involve creating a custom DataSourceView. The DataSourceView is a base class and is used by the control for data operations. Specifically, GetData() returns a DataSourceView. This instance will remain until the OnDataPropert圜hanged method signals that the data source has changed. Calling these methods retrieves an IDataSource instance that is cached by the DataBoundControl object. The GetData method calls GetDataSource() internally. When working with binding in the custom control the data is accessed by calling GetData().
#GETDATA CODE#
I’m going to add the Shipment Date and the Shipment Method Code to the report in the report. In this example, I’m modifying report 5703 (Transfer Order) report. The data source can be such things as files and database entities as previously implied. One of the most important aspects of the Form type report when you’re trying to edit the standard report is 2 functions: SetData and GetData. The data source is generally set by the user of the control. There is one important question to answer regarding data: What is the data? Is it a file? Is it a table in a database? If it is a file, what format is it in: CSV, XML, text, pdf? Is it a collection of related data or a single piece? Knowing what the raw data is its structure its format is essential to be able to use it as the underlying data for the data source of the custom control.Ī data-bound control will need a data source. It contains methods such as GetData() and GetDataSource() to help with the data-binding implementation of the custom control.Ī data-bound control by definition will need to bind to data. DataBoundControl, GetData(), DataSourceView, and GetDataSource() are a few methods and classes involved in custom data-bound controls.ĭataBoundControl is the base class used to implement custom data-bound controls.
When creating a custom data-bound control, the data-binding abilities must be implemented. i have an SQL database with several customer tables over different. The question implies the necessity of a custom data-bound control. make a function to getdata from different databases.
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