# AuditChainQuery

> Tracon documentation. Tracon is a .NET package family that adds a control
> plane on Microsoft Agent Framework, published as NuGet packages that run
> inside your own ASP.NET Core application.
>
> Page: https://tracon.dev/api/tracon.auditchainquery/
> Summary: AuditChainQuery: The criteria that scope a hash chain verification.

<div class="api-provenance">Namespace Tracon · Assembly <code>Tracon.Abstractions.dll</code></div>

The criteria that scope a hash chain verification.

```csharp
public sealed record AuditChainQuery : IEquatable<AuditChainQuery>
```

<dl class="api-relations"><dt>Inheritance</dt><dd><a href="https://learn.microsoft.com/dotnet/api/system.object">object</a> ← <a href="/api/tracon.auditchainquery/">AuditChainQuery</a></dd><dt>Implements</dt><dd><a href="https://learn.microsoft.com/dotnet/api/system.iequatable-1">IEquatable&lt;AuditChainQuery&gt;</a></dd><dt>Inherited Members</dt><dd><a href="https://learn.microsoft.com/dotnet/api/system.object.gettype">object.GetType()</a>, <a href="https://learn.microsoft.com/dotnet/api/system.object.tostring">object.ToString()</a>, <a href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object)">object.Equals(object?)</a>, <a href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object-system-object)">object.Equals(object?, object?)</a>, <a href="https://learn.microsoft.com/dotnet/api/system.object.referenceequals">object.ReferenceEquals(object?, object?)</a>, <a href="https://learn.microsoft.com/dotnet/api/system.object.gethashcode">object.GetHashCode()</a></dd></dl>

## Constructors

### <a id="Tracon_AuditChainQuery__ctor"></a> AuditChainQuery\(\)

```csharp
public AuditChainQuery()
```

## Properties

### <a id="Tracon_AuditChainQuery_After"></a> After

Gets the lower bound: entries written at or after this time are checked.

```csharp
public DateTimeOffset? After { get; init; }
```

#### Property Value

 [DateTimeOffset](https://learn.microsoft.com/dotnet/api/system.datetimeoffset)?

### <a id="Tracon_AuditChainQuery_Before"></a> Before

Gets the upper bound: entries written at or before this time are checked.

```csharp
public DateTimeOffset? Before { get; init; }
```

#### Property Value

 [DateTimeOffset](https://learn.microsoft.com/dotnet/api/system.datetimeoffset)?

### <a id="Tracon_AuditChainQuery_TenantId"></a> TenantId

Gets the tenant id. AMBIENT fallback: the caller's own
[ITenantContext.TenantId](/api/tracon.itenantcontext/#Tracon_ITenantContext_TenantId) is used when this is
[null](https://learn.microsoft.com/dotnet/csharp/language-reference/keywords/null) or empty — never "every tenant". See
[IAuditLog](/api/tracon.iauditlog/)'s remarks for the full contract.

```csharp
public string? TenantId { get; init; }
```

#### Property Value

 [string](https://learn.microsoft.com/dotnet/api/system.string)?

## Methods

### <a id="Tracon_AuditChainQuery_Equals_System_Object_"></a> Equals\(object?\)

```csharp
public override bool Equals(object? obj)
```

#### Parameters

`obj` [object](https://learn.microsoft.com/dotnet/api/system.object)?

#### Returns

 [bool](https://learn.microsoft.com/dotnet/api/system.boolean)

### <a id="Tracon_AuditChainQuery_Equals_Tracon_AuditChainQuery_"></a> Equals\(AuditChainQuery?\)

```csharp
public bool Equals(AuditChainQuery? other)
```

#### Parameters

`other` [AuditChainQuery](/api/tracon.auditchainquery/)?

#### Returns

 [bool](https://learn.microsoft.com/dotnet/api/system.boolean)

### <a id="Tracon_AuditChainQuery_GetHashCode"></a> GetHashCode\(\)

```csharp
public override int GetHashCode()
```

#### Returns

 [int](https://learn.microsoft.com/dotnet/api/system.int32)

### <a id="Tracon_AuditChainQuery_ToString"></a> ToString\(\)

```csharp
public override string ToString()
```

#### Returns

 [string](https://learn.microsoft.com/dotnet/api/system.string)

## Operators

### <a id="Tracon_AuditChainQuery_op_Equality_Tracon_AuditChainQuery_Tracon_AuditChainQuery_"></a> operator ==\(AuditChainQuery?, AuditChainQuery?\)

```csharp
public static bool operator ==(AuditChainQuery? left, AuditChainQuery? right)
```

#### Parameters

`left` [AuditChainQuery](/api/tracon.auditchainquery/)?

`right` [AuditChainQuery](/api/tracon.auditchainquery/)?

#### Returns

 [bool](https://learn.microsoft.com/dotnet/api/system.boolean)

### <a id="Tracon_AuditChainQuery_op_Inequality_Tracon_AuditChainQuery_Tracon_AuditChainQuery_"></a> operator \!=\(AuditChainQuery?, AuditChainQuery?\)

```csharp
public static bool operator !=(AuditChainQuery? left, AuditChainQuery? right)
```

#### Parameters

`left` [AuditChainQuery](/api/tracon.auditchainquery/)?

`right` [AuditChainQuery](/api/tracon.auditchainquery/)?

#### Returns

 [bool](https://learn.microsoft.com/dotnet/api/system.boolean)