19 lines
520 B
C#
19 lines
520 B
C#
using System.ComponentModel.DataAnnotations;
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namespace IM_API.Dtos.Message
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{
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public class MessageQueryDto
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{
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[Required(ErrorMessage = "会话ID必填")]
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public int ConversationId { get; set; }
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// 锚点序号（如果为空，说明是第一次进聊天框，拉最新的）
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public long? Cursor { get; set; }
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// 查询方向：0 - 查旧(Before), 1 - 查新(After)
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public int Direction { get; set; } = 0;
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public int Limit { get; set; } = 20;
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}
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}
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