# TLayerConstant enumeration

*No description yet.*

```csharp
public enum TLayerConstant
```

**Namespace:** PCB · **Assembly:** Altium.SDK

## Values

| Name | Value | Description |
| --- | --- | --- |
| `eNoLayer` | 0 |  |
| `eIgnoreLayer` | 1 |  |
| `eTopLayer` | 2 |  |
| `eMidLayer1` | 3 |  |
| `eMidLayer2` | 4 |  |
| `eMidLayer3` | 5 |  |
| `eMidLayer4` | 6 |  |
| `eMidLayer5` | 7 |  |
| `eMidLayer6` | 8 |  |
| `eMidLayer7` | 9 |  |
| `eMidLayer8` | 10 |  |
| `eMidLayer9` | 11 |  |
| `eMidLayer10` | 12 |  |
| `eMidLayer11` | 13 |  |
| `eMidLayer12` | 14 |  |
| `eMidLayer13` | 15 |  |
| `eMidLayer14` | 16 |  |
| `eMidLayer15` | 17 |  |
| `eMidLayer16` | 18 |  |
| `eMidLayer17` | 19 |  |
| `eMidLayer18` | 20 |  |
| `eMidLayer19` | 21 |  |
| `eMidLayer20` | 22 |  |
| `eMidLayer21` | 23 |  |
| `eMidLayer22` | 24 |  |
| `eMidLayer23` | 25 |  |
| `eMidLayer24` | 26 |  |
| `eMidLayer25` | 27 |  |
| `eMidLayer26` | 28 |  |
| `eMidLayer27` | 29 |  |
| `eMidLayer28` | 30 |  |
| `eMidLayer29` | 31 |  |
| `eMidLayer30` | 32 |  |
| `eBottomLayer` | 33 |  |
| `eTopOverlay` | 34 |  |
| `eBottomOverlay` | 35 |  |
| `eTopPaste` | 36 |  |
| `eBottomPaste` | 37 |  |
| `eTopSolder` | 38 |  |
| `eBottomSolder` | 39 |  |
| `eInternalPlane1` | 40 |  |
| `eInternalPlane2` | 41 |  |
| `eInternalPlane3` | 42 |  |
| `eInternalPlane4` | 43 |  |
| `eInternalPlane5` | 44 |  |
| `eInternalPlane6` | 45 |  |
| `eInternalPlane7` | 46 |  |
| `eInternalPlane8` | 47 |  |
| `eInternalPlane9` | 48 |  |
| `eInternalPlane10` | 49 |  |
| `eInternalPlane11` | 50 |  |
| `eInternalPlane12` | 51 |  |
| `eInternalPlane13` | 52 |  |
| `eInternalPlane14` | 53 |  |
| `eInternalPlane15` | 54 |  |
| `eInternalPlane16` | 55 |  |
| `eDrillGuide` | 56 |  |
| `eKeepOutLayer` | 57 |  |
| `eMechanical1` | 58 |  |
| `eMechanical2` | 59 |  |
| `eMechanical3` | 60 |  |
| `eMechanical4` | 61 |  |
| `eMechanical5` | 62 |  |
| `eMechanical6` | 63 |  |
| `eMechanical7` | 64 |  |
| `eMechanical8` | 65 |  |
| `eMechanical9` | 66 |  |
| `eMechanical10` | 67 |  |
| `eMechanical11` | 68 |  |
| `eMechanical12` | 69 |  |
| `eMechanical13` | 70 |  |
| `eMechanical14` | 71 |  |
| `eMechanical15` | 72 |  |
| `eMechanical16` | 73 |  |
| `eDrillDrawing` | 74 |  |
| `eMultiLayer` | 75 |  |
| `eConnectLayer` | 76 |  |
| `eBackGroundLayer` | 77 |  |
| `eDRCErrorLayer` | 78 |  |
| `eDRCDetailLayer` | 79 |  |
| `eHighlightLayer` | 80 |  |
| `eGridColor1` | 81 |  |
| `eGridColor10` | 82 |  |
| `ePadHoleLayer` | 83 |  |
| `eViaHoleLayer` | 84 |  |
| `eTopPadMasterPlot` | 85 |  |
| `eBottomPadMasterPlot` | 86 |  |
| `eV7MidLayers` | 87 |  |
| `eAllLayers` | 88 |  |
| `eSignalLayers` | 89 |  |
| `eInternalPlaneLayersConst` | 90 |  |
| `eElectricalLayers` | 91 |  |
| `eMechanicalLayersConst` | 92 |  |

## Accepted by

[V7_Layer.LayerConstantToString](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/V7_Layer.md#layerconstanttostring)