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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[CSHARP-4079] Implement positional update operators in LINQ3</title>
                <link>https://jira.mongodb.org/browse/CSHARP-4079</link>
                <project id="10041" key="CSHARP">C# Driver</project>
                    <description>&lt;p&gt;In LINQ2, you could use the magic number -1 to indicate use of the &lt;a href=&quot;https://docs.mongodb.com/manual/reference/operator/update/positional/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;positional operator&lt;/a&gt;, but this no longer works in LINQ3. When calling UpdateOneAsync, UpdateManyAsync, and related operations, the following code works in LINQ2, but fails in LINQ3:&lt;/p&gt;

&lt;p/&gt;
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&lt;p/&gt;

&lt;p&gt;In LINQ3 this fails with the error &quot;Cannot create field &apos;-1&apos; in element &lt;span class=&quot;error&quot;&gt;&amp;#91;...&amp;#93;&lt;/span&gt;&quot;. In LINQ2 it successfully translated it into &quot;AnArrayMember.$.Deleted&quot; and the Set command completed fine.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1989734">CSHARP-4079</key>
            <summary>Implement positional update operators in LINQ3</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="13201">Fixed</resolution>
                                        <assignee username="robert@mongodb.com">Robert Stam</assignee>
                                    <reporter username="james.kovacs@mongodb.com">James Kovacs</reporter>
                        <labels>
                    </labels>
                <created>Thu, 24 Feb 2022 17:24:20 +0000</created>
                <updated>Fri, 15 Dec 2023 01:13:45 +0000</updated>
                            <resolved>Thu, 24 Mar 2022 15:12:52 +0000</resolved>
                                    <version>2.14.0</version>
                                    <fixVersion>2.16.0</fixVersion>
                                    <component>LINQ3</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="5952655" author="JIRAUSER1268711" created="Fri, 15 Dec 2023 01:13:45 +0000"  >&lt;p&gt;An issue that I&apos;ve come across with this change is that I must now add a reference to the MongoDB library when I didn&apos;t need to before as my data layer was abstracted in my business logic. I can&apos;t think of a workaround to this, so have had to add the reference which is a bit annoying.&lt;/p&gt;</comment>
                            <comment id="4432518" author="xgen-internal-githook" created="Thu, 24 Mar 2022 15:12:32 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;rstam&apos;, &apos;email&apos;: &apos;robert@robertstam.org&apos;, &apos;username&apos;: &apos;rstam&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CSHARP-4079&quot; title=&quot;Implement positional update operators in LINQ3&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CSHARP-4079&quot;&gt;&lt;del&gt;CSHARP-4079&lt;/del&gt;&lt;/a&gt;: Implement positional update operators in LINQ3.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-csharp-driver/commit/0be98c5addaba2e160fbe3a290dee75d022588ef&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-csharp-driver/commit/0be98c5addaba2e160fbe3a290dee75d022588ef&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4425214" author="rstam" created="Mon, 21 Mar 2022 20:52:11 +0000"  >&lt;p&gt;-1 was not a good choice as way to represent the positional operator.&lt;/p&gt;

&lt;p&gt;In LINQ3 we are going to be using custom extension methods instead to represent the three different kinds of positional operators available in update specifications:&lt;/p&gt;
&lt;p/&gt;
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&lt;p/&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10010">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="519228">CSHARP-2232</issuekey>
        </issuelink>
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                            <issuelinktype id="10012">
                    <name>Related</name>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="2316603">CSHARP-4618</issuekey>
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