Property FieldMerging
FieldMerging
Gets or sets a hook called for every merge field, before its value is written.
public Action<MergeFieldEventArgs>? FieldMerging { get; set; }
Property Value
Remarks
The host may substitute the value, supply one the data source does not have, or leave the field alone. This is the seam for anything policy-shaped — masking, lookups, per-field formatting — that does not belong in the engine.