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DataTransfer.AddConstantValue(Any, Integer) Method

  • Статья

Version: Available or changed with runtime version 10.0.

Specifies the given value is to be set in the given field in the destination table.

Syntax

 DataTransfer.AddConstantValue(Value: Any, DestinationField: Integer)

Parameters

DataTransfer
 Type: DataTransfer
An instance of the DataTransfer data type.

Value
 Type: Any
The value to set in the destination field.

DestinationField
 Type: Integer
The destination table field.

Remarks

The DataTransfer object can only be used in upgrade code and it will throw an runtime error if used outside of upgrade codeunits.

Use this method to set a constant value for a field when copying data in rows or fields of table to another table. For more information, see Transferring Data Bewteen Tables.

Example

In this code example, you copy the PK and S3 fields in the Source table for all rows where S2 equals A and add them as new rows in the Destination table. You use AddConstantValue method to give the field D2 the value X in the inserted rows.

local procedure CopyRows()
var
    dt: DataTransfer;
    src: Record Source;
    dest : Record Destination;
begin
    dt.SetTables(Database::Source, Database::Destination);
    dt.AddFieldValue(src.FieldNo("PK"), dest.FieldNo("PK"));
    dt.AddFieldValue(src.FieldNo("S3"), dest.FieldNo("D3"));
    dt.AddConstantValue('X', dest.FieldNo(D2));
    dt.AddSourceFilter(src.FieldNo("S2"), '=%1', 'A');
    dt.CopyRows();
end;

DataTransfer Data Type
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