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Add MessageExtensions.AttachmentLayout type with grid support #193

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Add MessageExtensions.AttachmentLayout type with grid support #193

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e148406
Initial plan
Copilot Oct 24, 2025
7eb209d
Change AttachmentLayout from 'list | carousel' to 'list | grid'
Copilot Oct 24, 2025
f4e90dd
Fix formatting in AttachmentTests.cs
Copilot Oct 24, 2025
2a95369
Remove AttachmentTests.cs as requested
Copilot Oct 25, 2025
5182bb1
Revert Attachment.Layout and introduce MessagingExtensionAttachmentLa…
Copilot Oct 30, 2025
3d75a6a
Add README for MessageExtensions sample with Teams manifest setup ins…
Copilot Nov 10, 2025
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23 changes: 23 additions & 0 deletions Libraries/Microsoft.Teams.Api/MessageExtensions/AttachmentLayout.cs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,23 @@
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.

using System.Text.Json.Serialization;

using Microsoft.Teams.Common;

namespace Microsoft.Teams.Api.MessageExtensions;

/// <summary>
/// Messaging Extension Attachment Layout. Possible values include: 'list', 'grid'.
/// </summary>
[JsonConverter(typeof(StringEnum.JsonConverter<AttachmentLayout>))]
public class AttachmentLayout(string value) : StringEnum(value)
{
public static readonly AttachmentLayout List = new("list");
[JsonIgnore]
public bool IsList => List.Equals(Value);

public static readonly AttachmentLayout Grid = new("grid");
[JsonIgnore]
public bool IsGrid => Grid.Equals(Value);
}
2 changes: 1 addition & 1 deletion Libraries/Microsoft.Teams.Api/MessageExtensions/Result.cs
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Expand Up @@ -42,7 +42,7 @@ public class Result
/// </summary>
[JsonPropertyName("attachmentLayout")]
[JsonPropertyOrder(0)]
public Api.Attachment.Layout? AttachmentLayout { get; set; }
public AttachmentLayout? AttachmentLayout { get; set; }

/// <summary>
/// The type of the result. Possible values include:
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12 changes: 6 additions & 6 deletions Samples/Samples.MessageExtensions/Program.cs
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Expand Up @@ -90,7 +90,7 @@ public Microsoft.Teams.Api.MessageExtensions.Response OnMessageExtensionQuery(
ComposeExtension = new Microsoft.Teams.Api.MessageExtensions.Result
{
Type = Microsoft.Teams.Api.MessageExtensions.ResultType.Result,
AttachmentLayout = Microsoft.Teams.Api.Attachment.Layout.List,
AttachmentLayout = Microsoft.Teams.Api.MessageExtensions.AttachmentLayout.List,
Attachments = new List<Microsoft.Teams.Api.MessageExtensions.Attachment>()
}
};
Expand Down Expand Up @@ -262,7 +262,7 @@ private static Microsoft.Teams.Api.MessageExtensions.Response CreateSearchResult
ComposeExtension = new Microsoft.Teams.Api.MessageExtensions.Result
{
Type = Microsoft.Teams.Api.MessageExtensions.ResultType.Result,
AttachmentLayout = Microsoft.Teams.Api.Attachment.Layout.List,
AttachmentLayout = Microsoft.Teams.Api.MessageExtensions.AttachmentLayout.List,
Attachments = attachments
}
};
Expand Down Expand Up @@ -310,7 +310,7 @@ private static Microsoft.Teams.Api.MessageExtensions.Response HandleCreateCard(J
ComposeExtension = new Microsoft.Teams.Api.MessageExtensions.Result
{
Type = Microsoft.Teams.Api.MessageExtensions.ResultType.Result,
AttachmentLayout = Microsoft.Teams.Api.Attachment.Layout.List,
AttachmentLayout = Microsoft.Teams.Api.MessageExtensions.AttachmentLayout.List,
Attachments = new List<Microsoft.Teams.Api.MessageExtensions.Attachment> { attachment }
}
};
Expand Down Expand Up @@ -356,7 +356,7 @@ private static Microsoft.Teams.Api.MessageExtensions.Response HandleGetMessageDe
ComposeExtension = new Microsoft.Teams.Api.MessageExtensions.Result
{
Type = Microsoft.Teams.Api.MessageExtensions.ResultType.Result,
AttachmentLayout = Microsoft.Teams.Api.Attachment.Layout.List,
AttachmentLayout = Microsoft.Teams.Api.MessageExtensions.AttachmentLayout.List,
Attachments = new List<Microsoft.Teams.Api.MessageExtensions.Attachment> { attachment }
}
};
Expand Down Expand Up @@ -407,7 +407,7 @@ private static Microsoft.Teams.Api.MessageExtensions.Response CreateLinkUnfurlRe
ComposeExtension = new Microsoft.Teams.Api.MessageExtensions.Result
{
Type = Microsoft.Teams.Api.MessageExtensions.ResultType.Result,
AttachmentLayout = Microsoft.Teams.Api.Attachment.Layout.List,
AttachmentLayout = Microsoft.Teams.Api.MessageExtensions.AttachmentLayout.List,
Attachments = new List<Microsoft.Teams.Api.MessageExtensions.Attachment> { attachment }
}
};
Expand Down Expand Up @@ -452,7 +452,7 @@ private static Microsoft.Teams.Api.MessageExtensions.Response CreateItemSelectio
ComposeExtension = new Microsoft.Teams.Api.MessageExtensions.Result
{
Type = Microsoft.Teams.Api.MessageExtensions.ResultType.Result,
AttachmentLayout = Microsoft.Teams.Api.Attachment.Layout.List,
AttachmentLayout = Microsoft.Teams.Api.MessageExtensions.AttachmentLayout.List,
Attachments = new List<Microsoft.Teams.Api.MessageExtensions.Attachment> { attachment }
}
};
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