# ILsmSdkTransmissionLineCollection interface

*No description yet.*

```csharp
public interface ILsmSdkTransmissionLineCollection
```

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

## Methods

| Method | Returns | Description |
| --- | --- | --- |
| [GetCount](#getcount) | `int` |  |
| [GetItem](#getitem) | [ILsmSdkTransmissionLine](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/ILsmSdkTransmissionLine.md) |  |
| [GetItemById](#getitembyid) | [ILsmSdkTransmissionLine](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/ILsmSdkTransmissionLine.md) |  |

### GetCount

*No description yet.*

```csharp
int GetCount();
```

**Returns:** `int`

### GetItem

*No description yet.*

```csharp
ILsmSdkTransmissionLine GetItem(int argIndex);
```

| Parameter | Type | Passing |
| --- | --- | --- |
| `argIndex` | `int` | value |

**Returns:** [ILsmSdkTransmissionLine](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/ILsmSdkTransmissionLine.md)

Extension method of `ILsmSdkTransmissionLineCollectionHelper` (`using PCB;`).

### GetItemById

*No description yet.*

```csharp
ILsmSdkTransmissionLine GetItemById(LsmSdkTLId argId);
```

| Parameter | Type | Passing |
| --- | --- | --- |
| `argId` | [LsmSdkTLId](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/LsmSdkTLId.md) | value |

**Returns:** [ILsmSdkTransmissionLine](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/ILsmSdkTransmissionLine.md)

Extension method of `ILsmSdkTransmissionLineCollectionHelper` (`using PCB;`).

## Returned by

[ILsmSdkStackup.TransmissionLines](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/ILsmSdkStackup.md#transmissionlines)