﻿<!DOCTYPE html>
<!--[if IE]><![endif]-->
<html>
  
  <head>
<link rel="canonical" href="https://ignite.apache.org/releases/2.10.0/dotnetdoc/api/Apache.Ignite.Linq.IUpdateDescriptor-2.html" />
<META NAME="ROBOTS" CONTENT="NOINDEX">
<!-- Yandex.Metrika counter -->
    <script type="text/javascript" >
      (function(m,e,t,r,i,k,a){m[i]=m[i]||function(){(m[i].a=m[i].a||[]).push(arguments)};
      m[i].l=1*new Date();k=e.createElement(t),a=e.getElementsByTagName(t)[0],k.async=1,k.src=r,a.parentNode.insertBefore(k,a)})
      (window, document, "script", "https://mc.yandex.ru/metrika/tag.js", "ym");
    
      ym(72949126, "init", {
           clickmap:true,
           trackLinks:true,
           accurateTrackBounce:true,
           webvisor:true
      });
    </script>
    <noscript><div><img src="https://mc.yandex.ru/watch/72949126" style="position:absolute; left:-9999px;" alt="" /></div></noscript>
    <!-- /Yandex.Metrika counter -->
<script type='text/javascript'>
    window.__lo_site_id = 284467;
    
      (function() {
        var wa = document.createElement('script'); wa.type = 'text/javascript'; wa.async = true;
        wa.src = 'https://d10lpsik1i8c69.cloudfront.net/w.js';
        var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(wa, s);
        })();
      </script>

    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <title>Interface IUpdateDescriptor&lt;TKey, TValue&gt;
   | Apache Ignite.NET </title>
    <meta name="viewport" content="width=device-width">
    <meta name="title" content="Interface IUpdateDescriptor&lt;TKey, TValue&gt;
   | Apache Ignite.NET ">
    <meta name="generator" content="docfx 2.24.0.0">
    
    <link rel="shortcut icon" href="../images/favicon.ico">
    <link rel="stylesheet" href="../styles/docfx.vendor.css">
    <link rel="stylesheet" href="../styles/docfx.css">
    <link rel="stylesheet" href="../styles/main.css">
    <meta property="docfx:navrel" content="../toc.html">
    <meta property="docfx:tocrel" content="toc.html">
    
    <meta property="docfx:rel" content="../">
    
  
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-61232409-1"></script>
    <script>
      window.dataLayer = window.dataLayer || [];
      function gtag(){dataLayer.push(arguments);}
      gtag('js', new Date());
    
      gtag('config', 'UA-61232409-1');
    </script></head>
  <body data-spy="scroll" data-target="#affix">
    <div id="wrapper">
      <header>
        
        <nav id="autocollapse" class="navbar navbar-inverse ng-scope" role="navigation">
          <div class="container">
            <div class="navbar-header">
              <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navbar">
                <span class="sr-only">Toggle navigation</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
              </button>
              
              <a class="navbar-brand" href="../index.html">
                <img id="logo" class="svg" src="../images/logo_ignite_32_32.png" alt="">
              </a>
            </div>
            <div class="collapse navbar-collapse" id="navbar">
              <form class="navbar-form navbar-right" role="search" id="search">
                <div class="form-group">
                  <input type="text" class="form-control" id="search-query" placeholder="Search" autocomplete="off">
                </div>
              </form>
            </div>
          </div>
        </nav>
        
        <div class="subnav navbar navbar-default">
          <div class="container hide-when-search" id="breadcrumb">
            <ul class="breadcrumb">
              <li></li>
            </ul>
          </div>
        </div>
      </header>
      <div class="container body-content">
        
        <div id="search-results">
          <div class="search-list"></div>
          <div class="sr-items"></div>
          <ul id="pagination"></ul>
        </div>
      </div>
      <div role="main" class="container body-content hide-when-search">
        
        <div class="sidenav hide-when-search">
          <a class="btn toc-toggle collapse" data-toggle="collapse" href="#sidetoggle" aria-expanded="false" aria-controls="sidetoggle">Show / Hide Table of Contents</a>
          <div class="sidetoggle collapse" id="sidetoggle">
            <div id="sidetoc"></div>
          </div>
        </div>
        <div class="article row grid-right">
          <div class="col-md-10">
            <article class="content wrap" id="_content" data-uid="Apache.Ignite.Linq.IUpdateDescriptor`2">
  
  
  <h1 id="Apache_Ignite_Linq_IUpdateDescriptor_2" data-uid="Apache.Ignite.Linq.IUpdateDescriptor`2" class="text-break">Interface IUpdateDescriptor&lt;TKey, TValue&gt;
  </h1>
  <div class="markdown level0 summary"><p>Dummy interface to provide update description for
<a class="xref" href="Apache.Ignite.Linq.CacheLinqExtensions.html#Apache_Ignite_Linq_CacheLinqExtensions_UpdateAll__2_System_Linq_IQueryable_Apache_Ignite_Core_Cache_ICacheEntry___0___1___System_Linq_Expressions_Expression_System_Func_Apache_Ignite_Linq_IUpdateDescriptor___0___1__Apache_Ignite_Linq_IUpdateDescriptor___0___1____">UpdateAll&lt;TKey, TValue&gt;(IQueryable&lt;ICacheEntry&lt;TKey, TValue&gt;&gt;, Expression&lt;Func&lt;IUpdateDescriptor&lt;TKey, TValue&gt;, IUpdateDescriptor&lt;TKey, TValue&gt;&gt;&gt;)</a></p>
</div>
  <div class="markdown level0 conceptual"></div>
  <h6><strong>Namespace</strong>: <a class="xref" href="Apache.Ignite.Linq.html">Apache.Ignite.Linq</a></h6>
  <h6><strong>Assembly</strong>: Apache.Ignite.Linq.dll</h6>
  <h5 id="Apache_Ignite_Linq_IUpdateDescriptor_2_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public interface IUpdateDescriptor&lt;out TKey, out TValue&gt;</code></pre>
  </div>
  <h5 class="typeParameters">Type Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="parametername">TKey</span></td>
        <td><p>Key type.</p>
</td>
      </tr>
      <tr>
        <td><span class="parametername">TValue</span></td>
        <td><p>Value type.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="methods">Methods
  </h3>
  <a id="Apache_Ignite_Linq_IUpdateDescriptor_2_Set_" data-uid="Apache.Ignite.Linq.IUpdateDescriptor`2.Set*"></a>
  <h4 id="Apache_Ignite_Linq_IUpdateDescriptor_2_Set__1_System_Func__1___0____0_" data-uid="Apache.Ignite.Linq.IUpdateDescriptor`2.Set``1(System.Func{`1,``0},``0)">Set&lt;TProp&gt;(Func&lt;TValue, TProp&gt;, TProp)</h4>
  <div class="markdown level1 summary"><p>Specifies member update with constant</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">IUpdateDescriptor&lt;TKey, TValue&gt; Set&lt;TProp&gt;(Func&lt;TValue, TProp&gt; selector, TProp value)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Func</span>&lt;TValue, TProp&gt;</td>
        <td><span class="parametername">selector</span></td>
        <td><p>Member selector</p>
</td>
      </tr>
      <tr>
        <td><span class="xref">TProp</span></td>
        <td><span class="parametername">value</span></td>
        <td><p>New value</p>
</td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Apache.Ignite.Linq.IUpdateDescriptor-2.html">IUpdateDescriptor</a>&lt;TKey, TValue&gt;</td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <h5 class="typeParameters">Type Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="parametername">TProp</span></td>
        <td><p>Member type</p>
</td>
      </tr>
    </tbody>
  </table>
  <a id="Apache_Ignite_Linq_IUpdateDescriptor_2_Set_" data-uid="Apache.Ignite.Linq.IUpdateDescriptor`2.Set*"></a>
  <h4 id="Apache_Ignite_Linq_IUpdateDescriptor_2_Set__1_System_Func__1___0__System_Func_Apache_Ignite_Core_Cache_ICacheEntry__0__1____0__" data-uid="Apache.Ignite.Linq.IUpdateDescriptor`2.Set``1(System.Func{`1,``0},System.Func{Apache.Ignite.Core.Cache.ICacheEntry{`0,`1},``0})">Set&lt;TProp&gt;(Func&lt;TValue, TProp&gt;, Func&lt;ICacheEntry&lt;TKey, TValue&gt;, TProp&gt;)</h4>
  <div class="markdown level1 summary"><p>Specifies member update with expression</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">IUpdateDescriptor&lt;TKey, TValue&gt; Set&lt;TProp&gt;(Func&lt;TValue, TProp&gt; selector, Func&lt;ICacheEntry&lt;TKey, TValue&gt;, TProp&gt; valueBuilder)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Func</span>&lt;TValue, TProp&gt;</td>
        <td><span class="parametername">selector</span></td>
        <td><p>Member selector</p>
</td>
      </tr>
      <tr>
        <td><span class="xref">System.Func</span>&lt;<a class="xref" href="Apache.Ignite.Core.Cache.ICacheEntry-2.html">ICacheEntry</a>&lt;TKey, TValue&gt;, TProp&gt;</td>
        <td><span class="parametername">valueBuilder</span></td>
        <td><p>New value generator</p>
</td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Apache.Ignite.Linq.IUpdateDescriptor-2.html">IUpdateDescriptor</a>&lt;TKey, TValue&gt;</td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <h5 class="typeParameters">Type Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="parametername">TProp</span></td>
        <td><p>Member type</p>
</td>
      </tr>
    </tbody>
  </table>
</article>
          </div>
          
          <div class="hidden-sm col-md-2" role="complementary">
            <div class="sideaffix">
              <nav class="bs-docs-sidebar hidden-print hidden-xs hidden-sm affix" id="affix">
              <!-- <p><a class="back-to-top" href="#top">Back to top</a><p> -->
              </nav>
            </div>
          </div>
        </div>
      </div>
      
      <footer>
        <div class="grad-bottom"></div>
        <div class="footer">
          <div class="container">
            <span class="pull-right">
              <a href="#top">Back to top</a>
            </span>
            © 2015 - 2019 The Apache Software Foundation
            
          </div>
        </div>
      </footer>
    </div>
    
    <script type="text/javascript" src="../styles/docfx.vendor.js"></script>
    <script type="text/javascript" src="../styles/docfx.js"></script>
    <script type="text/javascript" src="../styles/main.js"></script>
  </body>
</html>