Using SAP connector 3.0 on an MVC application

When working with SAP connector 3.0 in an MVC application, you may encounter issues when trying to set values in table parameters. A common solution is to try adding a new row before calling SetValue.

Adding Rows to SAP Table Parameters

To properly add data to a table parameter in SAP connector 3.0, you need to append a new row first and then set the values. Here's the correct approach ?

employeeHoli.Append();
employeeHoli.SetValue("ColumnName", "0000345");

Understanding Table Parameters

When you use a table parameter in SAP, it can hold multiple lines of data. Table parameters are structured data containers that allow you to pass multiple records between your MVC application and the SAP system.

The process works as follows: You have to append new lines using the Append() method, which returns a structure object. Once you have this structure, you can fill it with the required data using the SetValue() method.

Complete Example

Here's a more comprehensive example showing how to add multiple records to a table parameter ?

// Adding first employee record
employeeHoli.Append();
employeeHoli.SetValue("EMPLOYEE_ID", "0000345");
employeeHoli.SetValue("HOLIDAY_DATE", "2024-01-15");

// Adding second employee record
employeeHoli.Append();
employeeHoli.SetValue("EMPLOYEE_ID", "0000346");
employeeHoli.SetValue("HOLIDAY_DATE", "2024-01-16");

Each call to Append() creates a new row in the table parameter, and subsequent SetValue() calls populate the columns for that specific row.

Conclusion

Always remember to call Append() before SetValue() when working with SAP table parameters in connector 3.0, as this ensures proper row creation and data population in your MVC application.