# ISubLibraryData interface

*No description yet.*

```csharp
public interface ISubLibraryData
```

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

## Methods

| Method | Returns | Description |
| --- | --- | --- |
| [FindComponentByGUID](#findcomponentbyguid) | [ILibraryComponentData](https://altiumdeveloper.github.io/ad-sdk-docs/reference/sch/ILibraryComponentData.md) |  |
| [First](#first) | [ILibraryComponentData](https://altiumdeveloper.github.io/ad-sdk-docs/reference/sch/ILibraryComponentData.md) |  |
| [GetKeyField](#getkeyfield) | `string` |  |
| [GUID](#guid) | `string` |  |
| [KeyFieldCount](#keyfieldcount) | `int` |  |
| [Name](#name) | `string` |  |
| [Next](#next) | [ILibraryComponentData](https://altiumdeveloper.github.io/ad-sdk-docs/reference/sch/ILibraryComponentData.md) |  |

### FindComponentByGUID

*No description yet.*

```csharp
ILibraryComponentData FindComponentByGUID(string argGUID);
```

| Parameter | Type | Passing |
| --- | --- | --- |
| `argGUID` | `string` | value |

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

Extension method of `ISubLibraryDataHelper` (`using SCH;`).

### First

*No description yet.*

```csharp
ILibraryComponentData First();
```

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

Extension method of `ISubLibraryDataHelper` (`using SCH;`).

### GetKeyField

*No description yet.*

```csharp
string GetKeyField(int argIndex);
```

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

**Returns:** `string`

### GUID

*No description yet.*

```csharp
string GUID();
```

**Returns:** `string`

### KeyFieldCount

*No description yet.*

```csharp
int KeyFieldCount();
```

**Returns:** `int`

### Name

*No description yet.*

```csharp
string Name();
```

**Returns:** `string`

### Next

*No description yet.*

```csharp
ILibraryComponentData Next();
```

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

Extension method of `ISubLibraryDataHelper` (`using SCH;`).

## Returned by

[ISubLibraryDataList.GetSubLibraryData](https://altiumdeveloper.github.io/ad-sdk-docs/reference/sch/ISubLibraryDataList.md#getsublibrarydata)