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补充 开放 IUpdate UpdateColumns 方法功能;
现实更新实体时,只更新指定的列(与 IgnoreColumns 对应);
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@ -51,6 +51,19 @@ namespace FreeSql {
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/// <returns></returns>
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IUpdate<T1> IgnoreColumns(string[] columns);
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/// <summary>
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/// 指定的列,UpdateColumns(a => a.Name) | UpdateColumns(a => new{a.Name,a.Time}) | UpdateColumns(a => new[]{"name","time"})
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/// </summary>
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/// <param name="columns">lambda选择列</param>
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/// <returns></returns>
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IUpdate<T1> UpdateColumns(Expression<Func<T1, object>> columns);
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/// <summary>
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/// 指定的列
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/// </summary>
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/// <param name="columns"></param>
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/// <returns></returns>
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IUpdate<T1> UpdateColumns(string[] columns);
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/// <summary>
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/// 设置列的新值,Set(a => a.Name, "newvalue")
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/// </summary>
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