> ## Documentation Index
> Fetch the complete documentation index at: https://easyaf.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# ColumnMetadata

> Contains metadata about a column in a table.

## Definition

**Assembly:** CloudNimble.BlazorEssentials.TursoDb.dll

**Namespace:** CloudNimble.BlazorEssentials.TursoDb.Schema

**Inheritance:** System.Object

## Syntax

```csharp theme={"dark"}
CloudNimble.BlazorEssentials.TursoDb.Schema.ColumnMetadata
```

## Summary

Contains metadata about a column in a table.

## Constructors

### <Icon icon="hammer" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> .ctor

Initializes a new instance of the [ColumnMetadata](/blazoressentials/api-reference/CloudNimble/BlazorEssentials/TursoDb/Schema/ColumnMetadata) class.

#### Syntax

```csharp theme={"dark"}
public ColumnMetadata(System.Reflection.PropertyInfo property, string columnName, string sqliteType, bool isPrimaryKey, bool autoIncrement, bool isNullable, string defaultValue, bool hasIndex, bool isUniqueIndex, string indexName)
```

#### Parameters

| Name            | Type                             | Description |
| --------------- | -------------------------------- | ----------- |
| `property`      | `System.Reflection.PropertyInfo` | -           |
| `columnName`    | `string`                         | -           |
| `sqliteType`    | `string`                         | -           |
| `isPrimaryKey`  | `bool`                           | -           |
| `autoIncrement` | `bool`                           | -           |
| `isNullable`    | `bool`                           | -           |
| `defaultValue`  | `string?`                        | -           |
| `hasIndex`      | `bool`                           | -           |
| `isUniqueIndex` | `bool`                           | -           |
| `indexName`     | `string?`                        | -           |

### <Icon icon="hammer" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> .ctor <Badge color="gray">Inherited</Badge>

<Note>Inherited from `object`</Note>

#### Syntax

```csharp theme={"dark"}
public Object()
```

## Properties

### <Icon icon="tag" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> AutoIncrement

Gets whether the primary key auto-increments.

#### Syntax

```csharp theme={"dark"}
public bool AutoIncrement { get; }
```

#### Property Value

Type: `bool`

### <Icon icon="tag" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> ColumnName

Gets the column name in the database.

#### Syntax

```csharp theme={"dark"}
public string ColumnName { get; }
```

#### Property Value

Type: `string`

### <Icon icon="tag" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> DefaultValue

Gets the default value for the column, or null if none.

#### Syntax

```csharp theme={"dark"}
public string DefaultValue { get; }
```

#### Property Value

Type: `string?`

### <Icon icon="tag" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> HasIndex

Gets whether this column has an index.

#### Syntax

```csharp theme={"dark"}
public bool HasIndex { get; }
```

#### Property Value

Type: `bool`

### <Icon icon="tag" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> IndexName

Gets the index name, if any.

#### Syntax

```csharp theme={"dark"}
public string IndexName { get; }
```

#### Property Value

Type: `string?`

### <Icon icon="tag" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> IsNullable

Gets whether the column allows NULL values.

#### Syntax

```csharp theme={"dark"}
public bool IsNullable { get; }
```

#### Property Value

Type: `bool`

### <Icon icon="tag" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> IsPrimaryKey

Gets whether this column is the primary key.

#### Syntax

```csharp theme={"dark"}
public bool IsPrimaryKey { get; }
```

#### Property Value

Type: `bool`

### <Icon icon="tag" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> IsUniqueIndex

Gets whether the index is unique.

#### Syntax

```csharp theme={"dark"}
public bool IsUniqueIndex { get; }
```

#### Property Value

Type: `bool`

### <Icon icon="tag" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> Property

Gets the property info for this column.

#### Syntax

```csharp theme={"dark"}
public System.Reflection.PropertyInfo Property { get; }
```

#### Property Value

Type: `System.Reflection.PropertyInfo`

### <Icon icon="tag" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> SqliteType

Gets the SQLite type for this column.

#### Syntax

```csharp theme={"dark"}
public string SqliteType { get; }
```

#### Property Value

Type: `string`

## Methods

### <Icon icon="code-fork" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> Equals <Badge color="gray">Inherited</Badge> <Badge color="orange">Virtual</Badge>

<Note>Inherited from `object`</Note>

#### Syntax

```csharp theme={"dark"}
public virtual bool Equals(object obj)
```

#### Parameters

| Name  | Type      | Description |
| ----- | --------- | ----------- |
| `obj` | `object?` | -           |

#### Returns

Type: `bool`

### <Icon icon="thumbtack" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> Equals <Badge color="gray">Inherited</Badge>

<Note>Inherited from `object`</Note>

#### Syntax

```csharp theme={"dark"}
public static bool Equals(object objA, object objB)
```

#### Parameters

| Name   | Type      | Description |
| ------ | --------- | ----------- |
| `objA` | `object?` | -           |
| `objB` | `object?` | -           |

#### Returns

Type: `bool`

### <Icon icon="code-fork" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> GetHashCode <Badge color="gray">Inherited</Badge> <Badge color="orange">Virtual</Badge>

<Note>Inherited from `object`</Note>

#### Syntax

```csharp theme={"dark"}
public virtual int GetHashCode()
```

#### Returns

Type: `int`

### <Icon icon="function" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> GetType <Badge color="gray">Inherited</Badge>

<Note>Inherited from `object`</Note>

#### Syntax

```csharp theme={"dark"}
public System.Type GetType()
```

#### Returns

Type: `System.Type`

### <Icon icon="function" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> GetValue

Gets the value of this column from an entity instance.

#### Syntax

```csharp theme={"dark"}
public object GetValue(object entity)
```

#### Parameters

| Name     | Type     | Description          |
| -------- | -------- | -------------------- |
| `entity` | `object` | The entity instance. |

#### Returns

Type: `object?`
The column value.

### <Icon icon="function" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> MemberwiseClone <Badge color="gray">Inherited</Badge>

<Note>Inherited from `object`</Note>

#### Syntax

```csharp theme={"dark"}
protected internal object MemberwiseClone()
```

#### Returns

Type: `object`

### <Icon icon="thumbtack" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> ReferenceEquals <Badge color="gray">Inherited</Badge>

<Note>Inherited from `object`</Note>

#### Syntax

```csharp theme={"dark"}
public static bool ReferenceEquals(object objA, object objB)
```

#### Parameters

| Name   | Type      | Description |
| ------ | --------- | ----------- |
| `objA` | `object?` | -           |
| `objB` | `object?` | -           |

#### Returns

Type: `bool`

### <Icon icon="function" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> SetValue

Sets the value of this column on an entity instance.

#### Syntax

```csharp theme={"dark"}
public void SetValue(object entity, object value)
```

#### Parameters

| Name     | Type      | Description          |
| -------- | --------- | -------------------- |
| `entity` | `object`  | The entity instance. |
| `value`  | `object?` | The value to set.    |

### <Icon icon="code-fork" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> ToString <Badge color="gray">Inherited</Badge> <Badge color="orange">Virtual</Badge>

<Note>Inherited from `object`</Note>

#### Syntax

```csharp theme={"dark"}
public virtual string ToString()
```

#### Returns

Type: `string?`