Lock Extended Cost

Question

How can extended cost be locked, so that it cannot be keyed over? Currently, a qty and a unit cost calculate, but the extended cost can be changed. View of Changed Cost

Answer 1

Create a graph extension for POOrderEntry (I am assuming this is the PO Order Screen)

Add a cache attached handler as follows:

[PXUIField(DisplayName = "Ext. Cost", Enabled = false)]
[PXMergeAttributes(Method = MergeMethod.Merge)]
protected virtual void _(Events.CacheAttached<POLine.curyExtCost> e)
{
}