Customization of leads screen

I don’t work in that screen, but I do have some combo boxes that I override the list.  Just be sure you don’t need to account for business logic for different options.

When the record is selected, use SetList from PXStringListAttribute to replace the allowed values and allowed labels.  Then add a class for your new selection list and inherit from PXStringListAttribute.  Add an array for the allowed values and another for their respective labels.  See below for an example.

#region MyDAC_RowSelected
protected void _(Events.RowSelected<MyDAC> e)
{
	MyDAC row = (MyDAC)e.Row;
	SelectableDispositions listattr = new();
	PXStringListAttribute.SetList<MyDAC.disposition>(e.Cache, row, listattr.AllowedValues, listattr.AllowedLabels);
}
#endregion

#region SelectableDispositions
public class SelectableDispositions : PXStringListAttribute
{
	public class ListAttribute : PXStringListAttribute
	{
		public ListAttribute() : base(
			new[]
			{
			Pair(MyDAC.Dispositions.None, MyNS.IN.Messages.None),
			Pair(MyDAC.Dispositions.Disp1, MyNS.IN.Messages.Disp1),
			Pair(MyDAC.Dispositions.Disp2, MyNS.IN.Messages.Disp2),
			Pair(MyDAC.Dispositions.Disp3, MyNS.IN.Messages.Disp3),
			})
		{ }

	}

	public string[] AllowedLabels = new string[]
	{
			MyNS.IN.Messages.None,
			MyNS.IN.Messages.Disp1,
			MyNS.IN.Messages.Disp2,
			MyNS.IN.Messages.Disp3
	};

	public string[] AllowedValues = new string[]
	{
			MyDAC.Dispositions.None,
			MyDAC.Dispositions.Disp1,
			MyDAC.Dispositions.Disp2,
			MyDAC.Dispositions.Disp3
	};
}
#endregion

In my case, I define the combo box list with all my options initially, but then I want to remove certain options for the user to select, so I override the list using the code sample above to define only the options I want the user to select at the time.

@Naveen Boga Thank you so much for the reply. I am following steps you said but cannot find the SOURCE field on the fields tab. I need to add it manually and when I get it as new field and not inherited. And new field does not have the option COMBO BOX VALUES, while the old ones Status and Resolution do have them.

@Naveen Boga this worked thank you.

@Brian Stevens @Naveen Boga 

I think both of the ways are applicable if you have only one dropdown. But I came to know that there are multiple places where this dropdown is used. So I need to find all the instances where this was used and do all the process. I looked into source code and found that they have created an attribute for the source field [CRMSources] and there they are declaring the options in PXStringList If by any way we can override that we don’t need to make changes at multiple places.

@Brian Stevens only for leads class. As for your solution I will still have to add this code on multiple places. Can we update CRMSources in any way directly ?