Basic examples for managed APIs of Pick List

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Introduction

With Pick List, users can specify predefined values from a drop down list in property definition. It is for ItemType only.
The following codes are some of the basic uses of the managed APIs for Pick List.

Basic examples:

1. To create Pick Lists
2. To load Pick Lists from a given DGN file
3. To Rename a Pick List
4. To Delete a Pick List value and a Pick List

1. To create Pick Lists:

DgnFile dgnFile = GetDgnFile();
 if(null == dgnFile)
 return false;
 PickListLibrary pickListLib = PickListLibrary.Create();
 if(null == pickListLib)
 return false;
 PickList pickList1 = pickListLib.AddPickList(“Manufacturer”, dgnFile);
 if(null == pickList1)
 return false;
 pickList1.AddValue(“Ford”);
 pickList1.AddValue(“BMW”);
 pickList1.AddValue(“Benz”);
 PickListLibrary.SavePickListLibToDgn(dgnFile, pickListLib, false);

2. To load Pick Lists from a given DGN file:

DgnFile dgnFile = Session.Instance.GetActiveDgnFile();
PickListLibrary library = PickListLibrary.Create();
PickListLibrary.GetPickListLibFromDgn(dgnFile, library);

3. To Rename a Pick List:

PickList pickList = pickListLib.GetPickListByName(“Manufacturer”);
if(null != pickList)
 pickList.Name = “Manufacturer2”;

4. To Delete a Pick List value and a Pick List:

PickList pickList = pickListLib.GetPickListByName(“Manufacturer”);
if(null == pickList)
 return false;
pickList.RemoveValue(“Ford”);
pickListLib.RemovePickListByName(“Manufacturer”));

To use these APIs, we need reference Bentley.DgnPlatformNET.dll and use namespace Bentley.DgnPlatformNET;

More examples are coming soon.

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