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<article class="content wrap" id="_content" data-uid="Lucene.Net.Search.WildcardQuery">
<h1 id="Lucene_Net_Search_WildcardQuery" data-uid="Lucene.Net.Search.WildcardQuery" class="text-break">Class WildcardQuery
</h1>
<div class="markdown level0 summary"><p>Implements the wildcard search query. Supported wildcards are <code><em></em></code>, which
matches any character sequence (including the empty one), and <code>?</code>,
which matches any single character. &apos;&amp;apos; is the escape character.
<p>
Note this query can be slow, as it
needs to iterate over many terms. In order to prevent extremely slow WildcardQueries,
a Wildcard term should not start with the wildcard <code></code></p>
<p><p>This query uses the
<a class="xref" href="Lucene.Net.Search.MultiTermQuery.html#Lucene_Net_Search_MultiTermQuery_CONSTANT_SCORE_AUTO_REWRITE_DEFAULT">CONSTANT_SCORE_AUTO_REWRITE_DEFAULT</a>
rewrite method.</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"><a class="xref" href="Lucene.Net.Search.Query.html">Query</a></div>
<div class="level2"><a class="xref" href="Lucene.Net.Search.MultiTermQuery.html">MultiTermQuery</a></div>
<div class="level3"><a class="xref" href="Lucene.Net.Search.AutomatonQuery.html">AutomatonQuery</a></div>
<div class="level4"><span class="xref">WildcardQuery</span></div>
</div>
<div class="inheritedMembers">
<h5>Inherited Members</h5>
<div>
<a class="xref" href="Lucene.Net.Search.AutomatonQuery.html#Lucene_Net_Search_AutomatonQuery_m_automaton">AutomatonQuery.m_automaton</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.AutomatonQuery.html#Lucene_Net_Search_AutomatonQuery_m_compiled">AutomatonQuery.m_compiled</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.AutomatonQuery.html#Lucene_Net_Search_AutomatonQuery_m_term">AutomatonQuery.m_term</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.AutomatonQuery.html#Lucene_Net_Search_AutomatonQuery_GetTermsEnum_Lucene_Net_Index_Terms_Lucene_Net_Util_AttributeSource_">AutomatonQuery.GetTermsEnum(Terms, AttributeSource)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.AutomatonQuery.html#Lucene_Net_Search_AutomatonQuery_GetHashCode">AutomatonQuery.GetHashCode()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.AutomatonQuery.html#Lucene_Net_Search_AutomatonQuery_Equals_System_Object_">AutomatonQuery.Equals(Object)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.AutomatonQuery.html#Lucene_Net_Search_AutomatonQuery_Automaton">AutomatonQuery.Automaton</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.MultiTermQuery.html#Lucene_Net_Search_MultiTermQuery_m_field">MultiTermQuery.m_field</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.MultiTermQuery.html#Lucene_Net_Search_MultiTermQuery_m_rewriteMethod">MultiTermQuery.m_rewriteMethod</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.MultiTermQuery.html#Lucene_Net_Search_MultiTermQuery_CONSTANT_SCORE_FILTER_REWRITE">MultiTermQuery.CONSTANT_SCORE_FILTER_REWRITE</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.MultiTermQuery.html#Lucene_Net_Search_MultiTermQuery_SCORING_BOOLEAN_QUERY_REWRITE">MultiTermQuery.SCORING_BOOLEAN_QUERY_REWRITE</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.MultiTermQuery.html#Lucene_Net_Search_MultiTermQuery_CONSTANT_SCORE_BOOLEAN_QUERY_REWRITE">MultiTermQuery.CONSTANT_SCORE_BOOLEAN_QUERY_REWRITE</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.MultiTermQuery.html#Lucene_Net_Search_MultiTermQuery_CONSTANT_SCORE_AUTO_REWRITE_DEFAULT">MultiTermQuery.CONSTANT_SCORE_AUTO_REWRITE_DEFAULT</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.MultiTermQuery.html#Lucene_Net_Search_MultiTermQuery_Field">MultiTermQuery.Field</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.MultiTermQuery.html#Lucene_Net_Search_MultiTermQuery_GetTermsEnum_Lucene_Net_Index_Terms_">MultiTermQuery.GetTermsEnum(Terms)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.MultiTermQuery.html#Lucene_Net_Search_MultiTermQuery_Rewrite_Lucene_Net_Index_IndexReader_">MultiTermQuery.Rewrite(IndexReader)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.MultiTermQuery.html#Lucene_Net_Search_MultiTermQuery_MultiTermRewriteMethod">MultiTermQuery.MultiTermRewriteMethod</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.Query.html#Lucene_Net_Search_Query_Boost">Query.Boost</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.Query.html#Lucene_Net_Search_Query_ToString">Query.ToString()</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.Query.html#Lucene_Net_Search_Query_CreateWeight_Lucene_Net_Search_IndexSearcher_">Query.CreateWeight(IndexSearcher)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.Query.html#Lucene_Net_Search_Query_ExtractTerms_System_Collections_Generic_ISet_Lucene_Net_Index_Term__">Query.ExtractTerms(ISet&lt;Term&gt;)</a>
</div>
<div>
<a class="xref" href="Lucene.Net.Search.Query.html#Lucene_Net_Search_Query_Clone">Query.Clone()</a>
</div>
<div>
<span class="xref">System.Object.Equals(System.Object, System.Object)</span>
</div>
<div>
<span class="xref">System.Object.GetType()</span>
</div>
<div>
<span class="xref">System.Object.MemberwiseClone()</span>
</div>
<div>
<span class="xref">System.Object.ReferenceEquals(System.Object, System.Object)</span>
</div>
</div>
<h6><strong>Namespace</strong>: <a class="xref" href="Lucene.Net.Search.html">Lucene.Net.Search</a></h6>
<h6><strong>Assembly</strong>: Lucene.Net.dll</h6>
<h5 id="Lucene_Net_Search_WildcardQuery_syntax">Syntax</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public class WildcardQuery : AutomatonQuery</code></pre>
</div>
<h3 id="constructors">Constructors
</h3>
<span class="small pull-right mobile-hide">
<span class="divider">|</span>
<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_Search_WildcardQuery__ctor_Lucene_Net_Index_Term_.md&amp;value=---%0Auid%3A%20Lucene.Net.Search.WildcardQuery.%23ctor(Lucene.Net.Index.Term)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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</span>
<a id="Lucene_Net_Search_WildcardQuery__ctor_" data-uid="Lucene.Net.Search.WildcardQuery.#ctor*"></a>
<h4 id="Lucene_Net_Search_WildcardQuery__ctor_Lucene_Net_Index_Term_" data-uid="Lucene.Net.Search.WildcardQuery.#ctor(Lucene.Net.Index.Term)">WildcardQuery(Term)</h4>
<div class="markdown level1 summary"><p>Constructs a query for terms matching <code data-dev-comment-type="paramref" class="paramref">term</code>.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public WildcardQuery(Term term)</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><a class="xref" href="Lucene.Net.Index.Term.html">Term</a></td>
<td><span class="parametername">term</span></td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="fields">Fields
</h3>
<span class="small pull-right mobile-hide">
<span class="divider">|</span>
<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_Search_WildcardQuery_WILDCARD_CHAR.md&amp;value=---%0Auid%3A%20Lucene.Net.Search.WildcardQuery.WILDCARD_CHAR%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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</span>
<h4 id="Lucene_Net_Search_WildcardQuery_WILDCARD_CHAR" data-uid="Lucene.Net.Search.WildcardQuery.WILDCARD_CHAR">WILDCARD_CHAR</h4>
<div class="markdown level1 summary"><p>Char equality with support for wildcards </p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public const char WILDCARD_CHAR = '?'</code></pre>
</div>
<h5 class="fieldValue">Field Value</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">System.Char</span></td>
<td></td>
</tr>
</tbody>
</table>
<span class="small pull-right mobile-hide">
<span class="divider">|</span>
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</span>
<h4 id="Lucene_Net_Search_WildcardQuery_WILDCARD_ESCAPE" data-uid="Lucene.Net.Search.WildcardQuery.WILDCARD_ESCAPE">WILDCARD_ESCAPE</h4>
<div class="markdown level1 summary"><p>Escape character </p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public const char WILDCARD_ESCAPE = '\\'</code></pre>
</div>
<h5 class="fieldValue">Field Value</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">System.Char</span></td>
<td></td>
</tr>
</tbody>
</table>
<span class="small pull-right mobile-hide">
<span class="divider">|</span>
<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_Search_WildcardQuery_WILDCARD_STRING.md&amp;value=---%0Auid%3A%20Lucene.Net.Search.WildcardQuery.WILDCARD_STRING%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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</span>
<h4 id="Lucene_Net_Search_WildcardQuery_WILDCARD_STRING" data-uid="Lucene.Net.Search.WildcardQuery.WILDCARD_STRING">WILDCARD_STRING</h4>
<div class="markdown level1 summary"><p>String equality with support for wildcards </p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public const char WILDCARD_STRING = '*'</code></pre>
</div>
<h5 class="fieldValue">Field Value</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">System.Char</span></td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="properties">Properties
</h3>
<span class="small pull-right mobile-hide">
<span class="divider">|</span>
<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_Search_WildcardQuery_Term.md&amp;value=---%0Auid%3A%20Lucene.Net.Search.WildcardQuery.Term%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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</span>
<a id="Lucene_Net_Search_WildcardQuery_Term_" data-uid="Lucene.Net.Search.WildcardQuery.Term*"></a>
<h4 id="Lucene_Net_Search_WildcardQuery_Term" data-uid="Lucene.Net.Search.WildcardQuery.Term">Term</h4>
<div class="markdown level1 summary"><p>Returns the pattern term.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public virtual Term Term { get; }</code></pre>
</div>
<h5 class="propertyValue">Property Value</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="Lucene.Net.Index.Term.html">Term</a></td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="methods">Methods
</h3>
<span class="small pull-right mobile-hide">
<span class="divider">|</span>
<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_Search_WildcardQuery_ToAutomaton_Lucene_Net_Index_Term_.md&amp;value=---%0Auid%3A%20Lucene.Net.Search.WildcardQuery.ToAutomaton(Lucene.Net.Index.Term)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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</span>
<a id="Lucene_Net_Search_WildcardQuery_ToAutomaton_" data-uid="Lucene.Net.Search.WildcardQuery.ToAutomaton*"></a>
<h4 id="Lucene_Net_Search_WildcardQuery_ToAutomaton_Lucene_Net_Index_Term_" data-uid="Lucene.Net.Search.WildcardQuery.ToAutomaton(Lucene.Net.Index.Term)">ToAutomaton(Term)</h4>
<div class="markdown level1 summary"><p>Convert Lucene wildcard syntax into an automaton.
<p>
<div class="lucene-block lucene-internal">This is a Lucene.NET INTERNAL API, use at your own risk</div></div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static Automaton ToAutomaton(Term wildcardquery)</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><a class="xref" href="Lucene.Net.Index.Term.html">Term</a></td>
<td><span class="parametername">wildcardquery</span></td>
<td></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="Lucene.Net.Util.Automaton.Automaton.html">Automaton</a></td>
<td></td>
</tr>
</tbody>
</table>
<span class="small pull-right mobile-hide">
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<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Lucene_Net_Search_WildcardQuery_ToString_System_String_.md&amp;value=---%0Auid%3A%20Lucene.Net.Search.WildcardQuery.ToString(System.String)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
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<a id="Lucene_Net_Search_WildcardQuery_ToString_" data-uid="Lucene.Net.Search.WildcardQuery.ToString*"></a>
<h4 id="Lucene_Net_Search_WildcardQuery_ToString_System_String_" data-uid="Lucene.Net.Search.WildcardQuery.ToString(System.String)">ToString(String)</h4>
<div class="markdown level1 summary"><p>Prints a user-readable version of this query. </p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public override string ToString(string field)</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.String</span></td>
<td><span class="parametername">field</span></td>
<td></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>
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<div><a class="xref" href="Lucene.Net.Search.AutomatonQuery.html#Lucene_Net_Search_AutomatonQuery_ToString_System_String_">AutomatonQuery.ToString(String)</a></div>
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