如何使用 x++ 从字符串字段自动填充查找字段？

Question

I am new at d365 Finance and Operations

I have a form and fields in it. Every time I enter a new record of one of these fields, their values should be concatenated and the combined text put to the 'Details' field. 2 fields are string and I use Modified events for them but the other field is lookup. How can I get the 'name' field in the lookup field to be written to the 'details' field? If anyone helps me with this I would be really appreciated it.

Here is my code for string fields;

[
    FormDataFieldEventHandler(formDataFieldStr(InventSite, InventSite, Field1), FormDataFieldEventType::Modified),
    FormDataFieldEventHandler(formDataFieldStr(InventSite, InventSite, Field2), FormDataFieldEventType::Modified)
   
]
public static void Field1_OnModified(FormDataObject sender, FormDataFieldEventArgs e)
    {
        // get the form DataSource
        FormDataSource dataSource = sender.datasource();
    
        // get current record
        InventSite inventSite = dataSource.cursor();
        
        
    
        // contatenate string values
        str details = strFmt("%1, %2",  inventSite.Field1, inventSite.Field2);
        

And here is my lookup field. Thank you very much in advance... My lookup field

If I need to explain more clearly, the value that I want to get is in the reference group (type: int64) I need to get its 'name(control name)' value, and Like others (field1 and field2, I need it to be written automatically in the 'details' field. please help...

Answer 1

Create static findByRecId method for your LookupTable (use class extension if it's a standard table). Then modify your code:

[
    FormDataFieldEventHandler(formDataFieldStr(InventSite, InventSite, Field1), FormDataFieldEventType::Modified),
    FormDataFieldEventHandler(formDataFieldStr(InventSite, InventSite, Field2), FormDataFieldEventType::Modified)
    FormDataFieldEventHandler(formDataFieldStr(InventSite, InventSite, Field3), FormDataFieldEventType::Modified)      
]
public static void Field1_OnModified(FormDataObject sender, FormDataFieldEventArgs e)
    {
        // get the form DataSource
        FormDataSource dataSource = sender.datasource();
    
        // get current record
        InventSite inventSite = dataSource.cursor();            
               
        // contatenate string values
        str details = strFmt("%1, %2, %3",  inventSite.Field1, inventSite.Field2, LookupTable::findByRecId(inventSite.Field3).Name);