# GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension

## Content

<div class="doc-site-dotnet-api-container">



  <h1 id="GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension" data-uid="GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension" class="text-break">EvalServiceExtension Class
</h1>
  <div class="markdown level0 summary"><p>Useful extensions.</p>
</div>
  <div class="markdown level0 conceptual"></div>
  <div class="inheritance">
    <h5>Inheritance</h5>
    <div class="level0"><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
    <div class="level1"><span class="xref">EvalServiceExtension</span></div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="GrapeCity.ActiveReports.Core.Rendering.Expressions.html">GrapeCity.ActiveReports.Core.Rendering.Expressions</a></h6>
  <h6><strong>Assembly</strong>: MESCIUS.ActiveReports.Core.Rendering.dll</h6>
  <h5 id="GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public static class EvalServiceExtension</code></pre>
  </div>
  <h3 id="methods">Methods
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  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension_Evaluate_GrapeCity_ActiveReports_Core_Rendering_IExpressionEvaluatorService_GrapeCity_Enterprise_Data_Expressions_ExpressionInfo_System_Boolean_" data-uid="GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension.Evaluate(GrapeCity.ActiveReports.Core.Rendering.IExpressionEvaluatorService,GrapeCity.Enterprise.Data.Expressions.ExpressionInfo,System.Boolean)">
          <a class="xref" href="GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension.Evaluate.html#GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension_Evaluate_GrapeCity_ActiveReports_Core_Rendering_IExpressionEvaluatorService_GrapeCity_Enterprise_Data_Expressions_ExpressionInfo_System_Boolean_">Evaluate(IExpressionEvaluatorService, ExpressionInfo, bool)</a>
        </td>
        <td class="markdown level1 summary"><p>Evaluate as bool.</p>
</td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension_Evaluate_GrapeCity_Enterprise_Data_Expressions_ExpressionInfo_GrapeCity_Enterprise_Data_DataEngine_ExpressionEvaluation_IExpressionContext_" data-uid="GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension.Evaluate(GrapeCity.Enterprise.Data.Expressions.ExpressionInfo,GrapeCity.Enterprise.Data.DataEngine.ExpressionEvaluation.IExpressionContext)">
          <a class="xref" href="GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension.Evaluate.html#GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension_Evaluate_GrapeCity_Enterprise_Data_Expressions_ExpressionInfo_GrapeCity_Enterprise_Data_DataEngine_ExpressionEvaluation_IExpressionContext_">Evaluate(ExpressionInfo, IExpressionContext)</a>
        </td>
        <td class="markdown level1 summary"><p>Evaluate as object.</p>
</td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension_EvaluateBool_GrapeCity_ActiveReports_Core_Rendering_IExpressionEvaluatorService_GrapeCity_Enterprise_Data_Expressions_ExpressionInfo_" data-uid="GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension.EvaluateBool(GrapeCity.ActiveReports.Core.Rendering.IExpressionEvaluatorService,GrapeCity.Enterprise.Data.Expressions.ExpressionInfo)">
          <a class="xref" href="GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension.EvaluateBool.html#GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension_EvaluateBool_GrapeCity_ActiveReports_Core_Rendering_IExpressionEvaluatorService_GrapeCity_Enterprise_Data_Expressions_ExpressionInfo_">EvaluateBool(IExpressionEvaluatorService, ExpressionInfo)</a>
        </td>
        <td class="markdown level1 summary"><p>Evaluate as bool.</p>
</td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension_EvaluateLength_GrapeCity_ActiveReports_Core_Rendering_IExpressionEvaluatorService_GrapeCity_Enterprise_Data_Expressions_ExpressionInfo_System_String_" data-uid="GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension.EvaluateLength(GrapeCity.ActiveReports.Core.Rendering.IExpressionEvaluatorService,GrapeCity.Enterprise.Data.Expressions.ExpressionInfo,System.String)">
          <a class="xref" href="GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension.EvaluateLength.html#GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension_EvaluateLength_GrapeCity_ActiveReports_Core_Rendering_IExpressionEvaluatorService_GrapeCity_Enterprise_Data_Expressions_ExpressionInfo_System_String_">EvaluateLength(IExpressionEvaluatorService, ExpressionInfo, string)</a>
        </td>
        <td class="markdown level1 summary"><p>Evaluate as length.</p>
</td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension_Evaluate__1_GrapeCity_ActiveReports_Core_Rendering_IExpressionEvaluatorService_GrapeCity_Enterprise_Data_Expressions_ExpressionInfo_" data-uid="GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension.Evaluate``1(GrapeCity.ActiveReports.Core.Rendering.IExpressionEvaluatorService,GrapeCity.Enterprise.Data.Expressions.ExpressionInfo)">
          <a class="xref" href="GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension.Evaluate.html#GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension_Evaluate__1_GrapeCity_ActiveReports_Core_Rendering_IExpressionEvaluatorService_GrapeCity_Enterprise_Data_Expressions_ExpressionInfo_">Evaluate&lt;T&gt;(IExpressionEvaluatorService, ExpressionInfo)</a>
        </td>
        <td class="markdown level1 summary"><p>Evaluate with simple default.</p>
</td>
      </tr>
      <tr>
        <td id="GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension_Evaluate__1_GrapeCity_ActiveReports_Core_Rendering_IExpressionEvaluatorService_GrapeCity_Enterprise_Data_Expressions_ExpressionInfo___0_" data-uid="GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension.Evaluate``1(GrapeCity.ActiveReports.Core.Rendering.IExpressionEvaluatorService,GrapeCity.Enterprise.Data.Expressions.ExpressionInfo,``0)">
          <a class="xref" href="GrapeCity.ActiveReports.Core.Rendering.Expressions.EvalServiceExtension.Evaluate.html#GrapeCity_ActiveReports_Core_Rendering_Expressions_EvalServiceExtension_Evaluate__1_GrapeCity_ActiveReports_Core_Rendering_IExpressionEvaluatorService_GrapeCity_Enterprise_Data_Expressions_ExpressionInfo___0_">Evaluate&lt;T&gt;(IExpressionEvaluatorService, ExpressionInfo, T)</a>
        </td>
        <td class="markdown level1 summary"><p>Evaluate with null value checks.</p>
</td>
      </tr>
    </tbody>
  </table>

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