# C1.WPF.RulesManager.RulesEngineExpressionRule

## Content

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  <h1 id="C1_WPF_RulesManager_RulesEngineExpressionRule" data-uid="C1.WPF.RulesManager.RulesEngineExpressionRule" class="text-break">RulesEngineExpressionRule Class
</h1>
  <div class="markdown level0 summary"><p>This rule evaluates whether the <a class="xref" href="C1.WPF.RulesManager.RulesEngineExpressionRule.Expression.html#C1_WPF_RulesManager_RulesEngineExpressionRule_Expression">Expression</a> function is true, and applies the <a class="xref" href="C1.WPF.RulesManager.RulesEngineExpressionRule.Style.html#C1_WPF_RulesManager_RulesEngineExpressionRule_Style">Style</a> in that case.</p>
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  <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"><a class="xref" href="C1.WPF.RulesManager.RulesEngineRule.html">RulesEngineRule</a></div>
    <div class="level2"><span class="xref">RulesEngineExpressionRule</span></div>
  </div>
  <div class="implements">
    <h5>Implements</h5>
    <div><span class="xref">IXmlSerializable</span></div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="C1.WPF.RulesManager.html">C1.WPF.RulesManager</a></h6>
  <h6><strong>Assembly</strong>: C1.WPF.RulesManager.dll</h6>
  <h5 id="C1_WPF_RulesManager_RulesEngineExpressionRule_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public class RulesEngineExpressionRule : RulesEngineRule, IXmlSerializable</code></pre>
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  <div class="codewrapper">
    <pre><code class="lang-vbnet hljs">Public Class RulesEngineExpressionRule
    Inherits RulesEngineRule
    Implements IXmlSerializable</code></pre>
  </div>
  <h3 id="constructors">Constructors
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_WPF_RulesManager_RulesEngineExpressionRule__ctor" data-uid="C1.WPF.RulesManager.RulesEngineExpressionRule.#ctor">
          <a class="xref" href="C1.WPF.RulesManager.RulesEngineExpressionRule.-ctor.html#C1_WPF_RulesManager_RulesEngineExpressionRule__ctor">RulesEngineExpressionRule()</a>
        </td>
        <td class="markdown level1 summary"><p>Initializes a new instance of the <a class="xref" href="C1.WPF.RulesManager.RulesEngineExpressionRule.html">RulesEngineExpressionRule</a> class.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="properties">Properties
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_WPF_RulesManager_RulesEngineExpressionRule_Expression" data-uid="C1.WPF.RulesManager.RulesEngineExpressionRule.Expression">
          <a class="xref" href="C1.WPF.RulesManager.RulesEngineExpressionRule.Expression.html#C1_WPF_RulesManager_RulesEngineExpressionRule_Expression">Expression</a>
        </td>
        <td class="markdown level1 summary"><p>Gets or sets the expression that will be evaluated for every item.</p>
</td>
      </tr>
      <tr>
        <td id="C1_WPF_RulesManager_RulesEngineExpressionRule_Style" data-uid="C1.WPF.RulesManager.RulesEngineExpressionRule.Style">
          <a class="xref" href="C1.WPF.RulesManager.RulesEngineExpressionRule.Style.html#C1_WPF_RulesManager_RulesEngineExpressionRule_Style">Style</a>
        </td>
        <td class="markdown level1 summary"><p>Gets or sets the style that will be applied when the <a class="xref" href="C1.WPF.RulesManager.RulesEngineExpressionRule.Expression.html#C1_WPF_RulesManager_RulesEngineExpressionRule_Expression">Expression</a> is evaluated positively.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="methods">Methods
</h3>
  <table class="table table-bordered table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td id="C1_WPF_RulesManager_RulesEngineExpressionRule_Evaluate_C1_WPF_RulesManager_RulesEngineSource_System_Int32_System_String_" data-uid="C1.WPF.RulesManager.RulesEngineExpressionRule.Evaluate(C1.WPF.RulesManager.RulesEngineSource,System.Int32,System.String)">
          <a class="xref" href="C1.WPF.RulesManager.RulesEngineExpressionRule.Evaluate.html#C1_WPF_RulesManager_RulesEngineExpressionRule_Evaluate_C1_WPF_RulesManager_RulesEngineSource_System_Int32_System_String_">Evaluate(RulesEngineSource, int, string)</a>
        </td>
        <td class="markdown level1 summary"></td>
      </tr>
      <tr>
        <td id="C1_WPF_RulesManager_RulesEngineExpressionRule_GetApplicableFields_C1_WPF_RulesManager_RulesEngineSource_" data-uid="C1.WPF.RulesManager.RulesEngineExpressionRule.GetApplicableFields(C1.WPF.RulesManager.RulesEngineSource)">
          <a class="xref" href="C1.WPF.RulesManager.RulesEngineExpressionRule.GetApplicableFields.html#C1_WPF_RulesManager_RulesEngineExpressionRule_GetApplicableFields_C1_WPF_RulesManager_RulesEngineSource_">GetApplicableFields(RulesEngineSource)</a>
        </td>
        <td class="markdown level1 summary"><p>Gets the fields from the source where this rule is applicable</p>
</td>
      </tr>
      <tr>
        <td id="C1_WPF_RulesManager_RulesEngineExpressionRule_GetStyle_C1_WPF_RulesManager_RulesEngineSource_System_Int32_System_String_" data-uid="C1.WPF.RulesManager.RulesEngineExpressionRule.GetStyle(C1.WPF.RulesManager.RulesEngineSource,System.Int32,System.String)">
          <a class="xref" href="C1.WPF.RulesManager.RulesEngineExpressionRule.GetStyle.html#C1_WPF_RulesManager_RulesEngineExpressionRule_GetStyle_C1_WPF_RulesManager_RulesEngineSource_System_Int32_System_String_">GetStyle(RulesEngineSource, int, string)</a>
        </td>
        <td class="markdown level1 summary"><p>Gets the style for the specified <code class="paramref">source</code>.</p>
</td>
      </tr>
    </tbody>
  </table>

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