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    <title>Class GrpcPreconditions
   | gRPC for .NET </title>
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   | gRPC for .NET ">
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            <article class="content wrap" id="_content" data-uid="Grpc.Core.Utils.GrpcPreconditions">
  
  
  <h1 id="Grpc_Core_Utils_GrpcPreconditions" data-uid="Grpc.Core.Utils.GrpcPreconditions" class="text-break">Class GrpcPreconditions
  </h1>
  <div class="markdown level0 summary"><p>Utility methods to simplify checking preconditions in the code.</p>
</div>
  <div class="markdown level0 conceptual"></div>
  <div class="inheritance">
    <h5>Inheritance</h5>
    <div class="level0"><span class="xref">System.Object</span></div>
    <div class="level1"><span class="xref">GrpcPreconditions</span></div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="Grpc.Core.Utils.html">Grpc.Core.Utils</a></h6>
  <h6><strong>Assembly</strong>: Grpc.Core.Api.dll</h6>
  <h5 id="Grpc_Core_Utils_GrpcPreconditions_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public static class GrpcPreconditions : object</code></pre>
  </div>
  <h3 id="methods">Methods
  </h3>
  <a id="Grpc_Core_Utils_GrpcPreconditions_CheckArgument_" data-uid="Grpc.Core.Utils.GrpcPreconditions.CheckArgument*"></a>
  <h4 id="Grpc_Core_Utils_GrpcPreconditions_CheckArgument_System_Boolean_" data-uid="Grpc.Core.Utils.GrpcPreconditions.CheckArgument(System.Boolean)">CheckArgument(Boolean)</h4>
  <div class="markdown level1 summary"><p>Throws <see cref="!:ArgumentException"></see> if condition is false.</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public static void CheckArgument(bool condition)</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.Boolean</span></td>
        <td><span class="parametername">condition</span></td>
        <td><p>The condition.</p>
</td>
      </tr>
    </tbody>
  </table>
  <a id="Grpc_Core_Utils_GrpcPreconditions_CheckArgument_" data-uid="Grpc.Core.Utils.GrpcPreconditions.CheckArgument*"></a>
  <h4 id="Grpc_Core_Utils_GrpcPreconditions_CheckArgument_System_Boolean_System_String_" data-uid="Grpc.Core.Utils.GrpcPreconditions.CheckArgument(System.Boolean,System.String)">CheckArgument(Boolean, String)</h4>
  <div class="markdown level1 summary"><p>Throws <see cref="!:ArgumentException"></see> with given message if condition is false.</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public static void CheckArgument(bool condition, string errorMessage)</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.Boolean</span></td>
        <td><span class="parametername">condition</span></td>
        <td><p>The condition.</p>
</td>
      </tr>
      <tr>
        <td><span class="xref">System.String</span></td>
        <td><span class="parametername">errorMessage</span></td>
        <td><p>The error message.</p>
</td>
      </tr>
    </tbody>
  </table>
  <a id="Grpc_Core_Utils_GrpcPreconditions_CheckNotNull_" data-uid="Grpc.Core.Utils.GrpcPreconditions.CheckNotNull*"></a>
  <h4 id="Grpc_Core_Utils_GrpcPreconditions_CheckNotNull__1___0_" data-uid="Grpc.Core.Utils.GrpcPreconditions.CheckNotNull``1(``0)">CheckNotNull&lt;T&gt;(T)</h4>
  <div class="markdown level1 summary"><p>Throws <see cref="!:ArgumentNullException"></see> if reference is null.</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public static T CheckNotNull&lt;T&gt;(T reference)</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">T</span></td>
        <td><span class="parametername">reference</span></td>
        <td><p>The reference.</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><span class="xref">T</span></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">T</span></td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <a id="Grpc_Core_Utils_GrpcPreconditions_CheckNotNull_" data-uid="Grpc.Core.Utils.GrpcPreconditions.CheckNotNull*"></a>
  <h4 id="Grpc_Core_Utils_GrpcPreconditions_CheckNotNull__1___0_System_String_" data-uid="Grpc.Core.Utils.GrpcPreconditions.CheckNotNull``1(``0,System.String)">CheckNotNull&lt;T&gt;(T, String)</h4>
  <div class="markdown level1 summary"><p>Throws <see cref="!:ArgumentNullException"></see> if reference is null.</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public static T CheckNotNull&lt;T&gt;(T reference, string paramName)</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">T</span></td>
        <td><span class="parametername">reference</span></td>
        <td><p>The reference.</p>
</td>
      </tr>
      <tr>
        <td><span class="xref">System.String</span></td>
        <td><span class="parametername">paramName</span></td>
        <td><p>The parameter name.</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><span class="xref">T</span></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">T</span></td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <a id="Grpc_Core_Utils_GrpcPreconditions_CheckState_" data-uid="Grpc.Core.Utils.GrpcPreconditions.CheckState*"></a>
  <h4 id="Grpc_Core_Utils_GrpcPreconditions_CheckState_System_Boolean_" data-uid="Grpc.Core.Utils.GrpcPreconditions.CheckState(System.Boolean)">CheckState(Boolean)</h4>
  <div class="markdown level1 summary"><p>Throws <see cref="!:InvalidOperationException"></see> if condition is false.</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public static void CheckState(bool condition)</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.Boolean</span></td>
        <td><span class="parametername">condition</span></td>
        <td><p>The condition.</p>
</td>
      </tr>
    </tbody>
  </table>
  <a id="Grpc_Core_Utils_GrpcPreconditions_CheckState_" data-uid="Grpc.Core.Utils.GrpcPreconditions.CheckState*"></a>
  <h4 id="Grpc_Core_Utils_GrpcPreconditions_CheckState_System_Boolean_System_String_" data-uid="Grpc.Core.Utils.GrpcPreconditions.CheckState(System.Boolean,System.String)">CheckState(Boolean, String)</h4>
  <div class="markdown level1 summary"><p>Throws <see cref="!:InvalidOperationException"></see> with given message if condition is false.</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public static void CheckState(bool condition, string errorMessage)</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.Boolean</span></td>
        <td><span class="parametername">condition</span></td>
        <td><p>The condition.</p>
</td>
      </tr>
      <tr>
        <td><span class="xref">System.String</span></td>
        <td><span class="parametername">errorMessage</span></td>
        <td><p>The error message.</p>
</td>
      </tr>
    </tbody>
  </table>
</article>
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