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T_Grpc_Core_Metadata.htm

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  1. <html><head><meta http-equiv="X-UA-Compatible" content="IE=edge" /><link rel="shortcut icon" href="../icons/favicon.ico" /><link rel="stylesheet" type="text/css" href="../styles/branding.css" /><link rel="stylesheet" type="text/css" href="../styles/branding-en-US.css" /><script type="text/javascript" src="../scripts/branding.js"> </script><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Metadata Class</title><meta name="Language" content="en-us" /><meta name="System.Keywords" content="Metadata class" /><meta name="System.Keywords" content="Grpc.Core.Metadata class" /><meta name="System.Keywords" content="Metadata class, about Metadata class" /><meta name="Microsoft.Help.F1" content="Grpc.Core.Metadata" /><meta name="Microsoft.Help.Id" content="T:Grpc.Core.Metadata" /><meta name="Description" content="A collection of metadata entries that can be exchanged during a call. gRPC supports these types of metadata: Request headersare sent by the client at the beginning of a remote call before any request messages are sent." /><meta name="Microsoft.Help.ContentType" content="Reference" /><meta name="BrandingAware" content="true" /><meta name="container" content="Grpc.Core" /><meta name="file" content="T_Grpc_Core_Metadata" /><meta name="guid" content="T_Grpc_Core_Metadata" /><link rel="stylesheet" type="text/css" href="../styles/branding-Website.css" /><script type="text/javascript" src="../scripts/jquery-1.11.0.min.js"></script><script type="text/javascript" src="../scripts/branding-Website.js"></script></head><body onload="OnLoad('cs')"><input type="hidden" id="userDataCache" class="userDataStyle" /><div class="pageHeader" id="PageHeader">gRPC C#<form id="SearchForm" method="get" action="#" onsubmit="javascript:TransferToSearchPage(); return false;"><input id="SearchTextBox" type="text" maxlength="200" /><button id="SearchButton" type="submit"></button></form></div><div class="pageBody"><div class="leftNav" id="leftNav"><div id="tocNav"><div class="toclevel0" data-toclevel="0"><a class="tocCollapsed" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="R_Project_Documentation.htm" title="gRPC C#" tocid="roottoc">gRPC C#</a></div><div class="toclevel0" data-toclevel="0"><a class="tocCollapsed" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="R_Project_Documentation.htm" title="Namespaces" tocid="R_Project_Documentation">Namespaces</a></div><div class="toclevel0" data-toclevel="0"><a class="tocCollapsed" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="N_Grpc_Core.htm" title="Grpc.Core" tocid="N_Grpc_Core">Grpc.Core</a></div><div class="toclevel1 current" data-toclevel="1" data-childrenloaded="true"><a class="tocExpanded" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="T_Grpc_Core_Metadata.htm" title="Metadata Class" tocid="T_Grpc_Core_Metadata">Metadata Class</a></div><div class="toclevel2" data-toclevel="2"><a data-tochassubtree="false" href="M_Grpc_Core_Metadata__ctor.htm" title="Metadata Constructor " tocid="M_Grpc_Core_Metadata__ctor">Metadata Constructor </a></div><div class="toclevel2" data-toclevel="2"><a class="tocCollapsed" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="Properties_T_Grpc_Core_Metadata.htm" title="Metadata Properties" tocid="Properties_T_Grpc_Core_Metadata">Metadata Properties</a></div><div class="toclevel2" data-toclevel="2"><a class="tocCollapsed" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="Methods_T_Grpc_Core_Metadata.htm" title="Metadata Methods" tocid="Methods_T_Grpc_Core_Metadata">Metadata Methods</a></div><div class="toclevel2" data-toclevel="2"><a class="tocCollapsed" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="Fields_T_Grpc_Core_Metadata.htm" title="Metadata Fields" tocid="Fields_T_Grpc_Core_Metadata">Metadata Fields</a></div></div><div id="tocResizableEW" onmousedown="OnMouseDown(event);"></div><div id="TocResize" class="tocResize"><img id="ResizeImageIncrease" src="../icons/TocOpen.gif" onclick="OnIncreaseToc()" alt="Click or drag to resize" title="Click or drag to resize" /><img id="ResizeImageReset" src="../icons/TocClose.gif" style="display:none" onclick="OnResetToc()" alt="Click or drag to resize" title="Click or drag to resize" /></div></div><div class="topicContent" id="TopicContent"><table class="titleTable"><tr><td class="titleColumn">Metadata Class</td></tr></table><span class="introStyle"></span><div class="summary">
    2. 

  2.             A collection of metadata entries that can be exchanged during a call.
    3. 

  3.             gRPC supports these types of metadata:
    4. 

  4.             <ul><li><strong>Request headers</strong> - are sent by the client at the beginning of a remote call before any request messages are sent.</li><li><strong>Response headers</strong> - are sent by the server at the beginning of a remote call handler before any response messages are sent.</li><li><strong>Response trailers</strong> - are sent by the server at the end of a remote call along with resulting call status.</li></ul></div><div class="collapsibleAreaRegion"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID0RB')" onkeypress="SectionExpandCollapse_CheckKey('ID0RB', event)" tabindex="0"><img id="ID0RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />Inheritance Hierarchy</span></div><div id="ID0RBSection" class="collapsibleSection"><a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">System<span id="LST821E84B4_0"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_0?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Object</a><br />  <span class="selflink">Grpc.Core<span id="LST821E84B4_1"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_1?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Metadata</span><br /></div><p> </p><strong>Namespace:</strong> <a href="N_Grpc_Core.htm">Grpc.Core</a><br /><strong>Assembly:</strong> Grpc.Core (in Grpc.Core.dll) Version: 0.12.0.0<div class="collapsibleAreaRegion"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID2RB')" onkeypress="SectionExpandCollapse_CheckKey('ID2RB', event)" tabindex="0"><img id="ID2RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />Syntax</span></div><div id="ID2RBSection" class="collapsibleSection"><div class="codeSnippetContainer"><div class="codeSnippetContainerTabs"><div id="ID1EDCA_tab1" class="codeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID1EDCA','cs','1','4');return false;">C#</a></div><div id="ID1EDCA_tab2" class="codeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID1EDCA','vb','2','4');return false;">VB</a></div><div id="ID1EDCA_tab3" class="codeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID1EDCA','cpp','3','4');return false;">C++</a></div><div id="ID1EDCA_tab4" class="codeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID1EDCA','fs','4','4');return false;">F#</a></div></div><div class="codeSnippetContainerCodeContainer"><div class="codeSnippetToolBar"><div class="codeSnippetToolBarText"><a id="ID1EDCA_copyCode" href="#" onclick="javascript:CopyToClipboard('ID1EDCA');return false;" title="Copy">Copy</a></div></div><div id="ID1EDCA_code_Div1" class="codeSnippetContainerCode" style="display: block"><pre xml:space="preserve"><span class="keyword">public</span> <span class="keyword">sealed</span> <span class="keyword">class</span> <span class="identifier">Metadata</span> : <span class="identifier">IList</span>&lt;<span class="identifier">Metadata<span id="LST821E84B4_2"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_2?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Entry</span>&gt;, 
    5. 

  5. 	<span class="identifier">ICollection</span>&lt;<span class="identifier">Metadata<span id="LST821E84B4_3"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_3?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Entry</span>&gt;, <span class="identifier">IEnumerable</span>&lt;<span class="identifier">Metadata<span id="LST821E84B4_4"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_4?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Entry</span>&gt;, <span class="identifier">IEnumerable</span></pre></div><div id="ID1EDCA_code_Div2" class="codeSnippetContainerCode" style="display: none"><pre xml:space="preserve"><span class="keyword">Public</span> <span class="keyword">NotInheritable</span> <span class="keyword">Class</span> <span class="identifier">Metadata</span>
    6. 

  6. 	<span class="keyword">Implements</span> <span class="identifier">IList</span>(<span class="keyword">Of</span> <span class="identifier">Metadata<span id="LST821E84B4_5"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_5?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Entry</span>), <span class="identifier">ICollection</span>(<span class="keyword">Of</span> <span class="identifier">Metadata<span id="LST821E84B4_6"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_6?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Entry</span>), 
    7. 

  7. 	<span class="identifier">IEnumerable</span>(<span class="keyword">Of</span> <span class="identifier">Metadata<span id="LST821E84B4_7"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_7?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Entry</span>), <span class="identifier">IEnumerable</span></pre></div><div id="ID1EDCA_code_Div3" class="codeSnippetContainerCode" style="display: none"><pre xml:space="preserve"><span class="keyword">public</span> <span class="keyword">ref class</span> <span class="identifier">Metadata</span> <span class="keyword">sealed</span> : <span class="identifier">IList</span>&lt;<span class="identifier">Metadata<span id="LST821E84B4_8"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_8?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Entry</span>&gt;, 
    8. 

  8. 	<span class="identifier">ICollection</span>&lt;<span class="identifier">Metadata<span id="LST821E84B4_9"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_9?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Entry</span>&gt;, <span class="identifier">IEnumerable</span>&lt;<span class="identifier">Metadata<span id="LST821E84B4_10"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_10?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Entry</span>&gt;, <span class="identifier">IEnumerable</span></pre></div><div id="ID1EDCA_code_Div4" class="codeSnippetContainerCode" style="display: none"><pre xml:space="preserve">[&lt;<span class="identifier">SealedAttribute</span>&gt;]
    9. 

  9. <span class="keyword">type</span> <span class="identifier">Metadata</span> =  
    10. 

  10.     <span class="keyword">class</span>
    11. 

  11.         <span class="keyword">interface</span> <span class="identifier">IList</span>&lt;<span class="identifier">Metadata<span id="LST821E84B4_11"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_11?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Entry</span>&gt;
    12. 

  12.         <span class="keyword">interface</span> <span class="identifier">ICollection</span>&lt;<span class="identifier">Metadata<span id="LST821E84B4_12"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_12?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Entry</span>&gt;
    13. 

  13.         <span class="keyword">interface</span> <span class="identifier">IEnumerable</span>&lt;<span class="identifier">Metadata<span id="LST821E84B4_13"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_13?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Entry</span>&gt;
    14. 

  14.         <span class="keyword">interface</span> <span class="identifier">IEnumerable</span>
    15. 

  15.     <span class="keyword">end</span></pre></div></div></div><script type="text/javascript">AddLanguageTabSet("ID1EDCA");</script></div><p>The <span class="selflink">Metadata</span> type exposes the following members.</p><div class="collapsibleAreaRegion"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID3RB')" onkeypress="SectionExpandCollapse_CheckKey('ID3RB', event)" tabindex="0"><img id="ID3RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />Constructors</span></div><div id="ID3RBSection" class="collapsibleSection"><table id="memberList" class="members"><tr><th class="iconColumn">
    16. 

  16. 								 
    17. 

  17. 							</th><th>Name</th><th>Description</th></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="M_Grpc_Core_Metadata__ctor.htm">Metadata</a></td><td><div class="summary">
    18. 

  18.             Initializes a new instance of <span class="code">Metadata</span>.
    19. 

  19.             </div></td></tr></table><a href="#PageHeader">Top</a></div><div class="collapsibleAreaRegion"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID4RB')" onkeypress="SectionExpandCollapse_CheckKey('ID4RB', event)" tabindex="0"><img id="ID4RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />Properties</span></div><div id="ID4RBSection" class="collapsibleSection"><table id="memberList" class="members"><tr><th class="iconColumn">
    20. 

  20. 								 
    21. 

  21. 							</th><th>Name</th><th>Description</th></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" alt="Public property" title="Public property" /></td><td><a href="P_Grpc_Core_Metadata_Count.htm">Count</a></td><td /></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" alt="Public property" title="Public property" /></td><td><a href="P_Grpc_Core_Metadata_IsReadOnly.htm">IsReadOnly</a></td><td /></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" alt="Public property" title="Public property" /></td><td><a href="P_Grpc_Core_Metadata_Item.htm">Item</a></td><td /></tr></table><a href="#PageHeader">Top</a></div><div class="collapsibleAreaRegion"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID5RB')" onkeypress="SectionExpandCollapse_CheckKey('ID5RB', event)" tabindex="0"><img id="ID5RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />Methods</span></div><div id="ID5RBSection" class="collapsibleSection"><table id="memberList" class="members"><tr><th class="iconColumn">
    22. 

  22. 								 
    23. 

  23. 							</th><th>Name</th><th>Description</th></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="M_Grpc_Core_Metadata_Add.htm">Add(Metadata<span id="LST821E84B4_14"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_14?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Entry)</a></td><td /></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="M_Grpc_Core_Metadata_Add_1.htm">Add(String, <span id="LST821E84B4_15"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_15?cpp=array&lt;");</script>Byte<span id="LST821E84B4_16"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST821E84B4_16?cpp=&gt;|cs=[]|vb=()|nu=[]|fs=[]");</script>)</a></td><td /></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="M_Grpc_Core_Metadata_Add_2.htm">Add(String, String)</a></td><td /></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="M_Grpc_Core_Metadata_Clear.htm">Clear</a></td><td /></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="M_Grpc_Core_Metadata_Contains.htm">Contains</a></td><td /></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="M_Grpc_Core_Metadata_CopyTo.htm">CopyTo</a></td><td /></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="http://msdn2.microsoft.com/en-us/library/bsc2ak47" target="_blank">Equals</a></td><td><div class="summary">Determines whether the specified object is equal to the current object.</div> (Inherited from <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.)</td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="M_Grpc_Core_Metadata_GetEnumerator.htm">GetEnumerator</a></td><td /></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="http://msdn2.microsoft.com/en-us/library/zdee4b3y" target="_blank">GetHashCode</a></td><td><div class="summary">Serves as the default hash function. </div> (Inherited from <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="http://msdn2.microsoft.com/en-us/library/dfwy45w9" target="_blank">GetType</a></td><td><div class="summary">Gets the <a href="http://msdn2.microsoft.com/en-us/library/42892f65" target="_blank">Type</a> of the current instance.</div> (Inherited from <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.)</td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="M_Grpc_Core_Metadata_IndexOf.htm">IndexOf</a></td><td /></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="M_Grpc_Core_Metadata_Insert.htm">Insert</a></td><td /></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="M_Grpc_Core_Metadata_Remove.htm">Remove</a></td><td /></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="M_Grpc_Core_Metadata_RemoveAt.htm">RemoveAt</a></td><td /></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="http://msdn2.microsoft.com/en-us/library/7bxwbwt2" target="_blank">ToString</a></td><td><div class="summary">Returns a string that represents the current object.</div> (Inherited from <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.)</td></tr></table><a href="#PageHeader">Top</a></div><div class="collapsibleAreaRegion"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID6RB')" onkeypress="SectionExpandCollapse_CheckKey('ID6RB', event)" tabindex="0"><img id="ID6RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />Fields</span></div><div id="ID6RBSection" class="collapsibleSection"><table id="memberList" class="members"><tr><th class="iconColumn">
    24. 

  24. 								 
    25. 

  25. 							</th><th>Name</th><th>Description</th></tr><tr data="public;static;declared;notNetfw;"><td><img src="../icons/pubfield.gif" alt="Public field" title="Public field" /><img src="../icons/static.gif" alt="Static member" title="Static member" /></td><td><a href="F_Grpc_Core_Metadata_BinaryHeaderSuffix.htm">BinaryHeaderSuffix</a></td><td><div class="summary">
    26. 

  26.             All binary headers should have this suffix.
    27. 

  27.             </div></td></tr><tr data="public;static;declared;notNetfw;"><td><img src="../icons/pubfield.gif" alt="Public field" title="Public field" /><img src="../icons/static.gif" alt="Static member" title="Static member" /></td><td><a href="F_Grpc_Core_Metadata_Empty.htm">Empty</a></td><td><div class="summary">
    28. 

  28.             An read-only instance of metadata containing no entries.
    29. 

  29.             </div></td></tr></table><a href="#PageHeader">Top</a></div><div class="collapsibleAreaRegion" id="seeAlsoSection"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID7RB')" onkeypress="SectionExpandCollapse_CheckKey('ID7RB', event)" tabindex="0"><img id="ID7RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />See Also</span></div><div id="ID7RBSection" class="collapsibleSection"><h4 class="subHeading">Reference</h4><div class="seeAlsoStyle"><a href="N_Grpc_Core.htm">Grpc.Core Namespace</a></div></div></div></div><div id="pageFooter" class="pageFooter"> </div></body></html>
    30.