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2016-12-15 17:06:28 -08:00

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<a href="https://github.com/Microsoft/sqltoolsservice/new/master/docs/apispec/new?filename=Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader.md&amp;value=---%0Auid%3A%20Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader%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" class="pull-right mobile-hide"><span class="fa fa-github"></span>Improve this Doc</a>
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<h1 id="Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader" data-uid="Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader">Class StorageDataReader
</h1>
<div class="markdown level0 summary"><p>Wrapper around a DbData reader to perform some special operations more simply</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">StorageDataReader</span></div>
</div>
<h6><strong>Namespace</strong>:Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage</h6>
<h6><strong>Assembly</strong>:Microsoft.SqlTools.ServiceLayer.dll</h6>
<h5 id="Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_syntax">Syntax</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public class StorageDataReader</code></pre>
</div>
<h3 id="constructors">Constructors
</h3>
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<a href="https://github.com/Microsoft/sqltoolsservice/new/master/docs/apispec/new?filename=Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader__ctor_System_Data_Common_DbDataReader_.md&amp;value=---%0Auid%3A%20Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.%23ctor(System.Data.Common.DbDataReader)%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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<h4 id="Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader__ctor_System_Data_Common_DbDataReader_" data-uid="Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.#ctor(System.Data.Common.DbDataReader)">StorageDataReader(DbDataReader)</h4>
<div class="markdown level1 summary"><p>Constructs a new wrapper around the provided reader</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public StorageDataReader(DbDataReader reader)</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.Data.Common.DbDataReader</span></td>
<td><em>reader</em></td>
<td><p>The reader to wrap around</p>
</td>
</tr>
</tbody>
</table>
<h3 id="properties">Properties
</h3>
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<a href="https://github.com/Microsoft/sqltoolsservice/new/master/docs/apispec/new?filename=Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_Columns.md&amp;value=---%0Auid%3A%20Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.Columns%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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<h4 id="Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_Columns" data-uid="Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.Columns">Columns</h4>
<div class="markdown level1 summary"><p>All the columns that this reader currently contains</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public DbColumnWrapper[] Columns { get; }</code></pre>
</div>
<h5 class="propertyValue"></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="Microsoft.SqlTools.ServiceLayer.QueryExecution.Contracts.DbColumnWrapper.html">DbColumnWrapper</a>[]</td>
<td></td>
</tr>
</tbody>
</table>
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<a href="https://github.com/Microsoft/sqltoolsservice/new/master/docs/apispec/new?filename=Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_DbDataReader.md&amp;value=---%0Auid%3A%20Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.DbDataReader%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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<h4 id="Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_DbDataReader" data-uid="Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.DbDataReader">DbDataReader</h4>
<div class="markdown level1 summary"><p>The <a class="xref" href="Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.html#Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_DbDataReader">DbDataReader</a> that will be read from</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public DbDataReader DbDataReader { get; }</code></pre>
</div>
<h5 class="propertyValue"></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.Data.Common.DbDataReader</span></td>
<td></td>
</tr>
</tbody>
</table>
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<a href="https://github.com/Microsoft/sqltoolsservice/new/master/docs/apispec/new?filename=Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_HasLongColumns.md&amp;value=---%0Auid%3A%20Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.HasLongColumns%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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<h4 id="Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_HasLongColumns" data-uid="Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.HasLongColumns">HasLongColumns</h4>
<div class="markdown level1 summary"><p>Whether or not any of the columns of this reader are &#39;long&#39;, such as nvarchar(max)</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public bool HasLongColumns { get; }</code></pre>
</div>
<h5 class="propertyValue"></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.Boolean</span></td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="methods">Methods
</h3>
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<a href="https://github.com/Microsoft/sqltoolsservice/new/master/docs/apispec/new?filename=Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_GetBytesWithMaxCapacity_System_Int32_System_Int32_.md&amp;value=---%0Auid%3A%20Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.GetBytesWithMaxCapacity(System.Int32%2CSystem.Int32)%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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<h4 id="Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_GetBytesWithMaxCapacity_System_Int32_System_Int32_" data-uid="Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.GetBytesWithMaxCapacity(System.Int32,System.Int32)">GetBytesWithMaxCapacity(Int32, Int32)</h4>
<div class="markdown level1 summary"><p>Retrieves bytes with a maximum number of bytes to return</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public byte[] GetBytesWithMaxCapacity(int iCol, int maxNumBytesToReturn)</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.Int32</span></td>
<td><em>iCol</em></td>
<td><p>Column ordinal</p>
</td>
</tr>
<tr>
<td><span class="xref">System.Int32</span></td>
<td><em>maxNumBytesToReturn</em></td>
<td><p>Number of bytes to return at maximum</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">System.Byte</span>[]</td>
<td><p>Byte array</p>
</td>
</tr>
</tbody>
</table>
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<a href="https://github.com/Microsoft/sqltoolsservice/new/master/docs/apispec/new?filename=Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_GetCharsWithMaxCapacity_System_Int32_System_Int32_.md&amp;value=---%0Auid%3A%20Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.GetCharsWithMaxCapacity(System.Int32%2CSystem.Int32)%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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<h4 id="Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_GetCharsWithMaxCapacity_System_Int32_System_Int32_" data-uid="Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.GetCharsWithMaxCapacity(System.Int32,System.Int32)">GetCharsWithMaxCapacity(Int32, Int32)</h4>
<div class="markdown level1 summary"><p>Retrieves characters with a maximum number of charss to return</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public string GetCharsWithMaxCapacity(int iCol, int maxCharsToReturn)</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.Int32</span></td>
<td><em>iCol</em></td>
<td><p>Column ordinal</p>
</td>
</tr>
<tr>
<td><span class="xref">System.Int32</span></td>
<td><em>maxCharsToReturn</em></td>
<td><p>Number of chars to return at maximum</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">System.String</span></td>
<td><p>String</p>
</td>
</tr>
</tbody>
</table>
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<a href="https://github.com/Microsoft/sqltoolsservice/new/master/docs/apispec/new?filename=Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_GetValue_System_Int32_.md&amp;value=---%0Auid%3A%20Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.GetValue(System.Int32)%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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<h4 id="Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_GetValue_System_Int32_" data-uid="Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.GetValue(System.Int32)">GetValue(Int32)</h4>
<div class="markdown level1 summary"><p>Retrieves a value</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public object GetValue(int i)</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.Int32</span></td>
<td><em>i</em></td>
<td><p>Column ordinal</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">System.Object</span></td>
<td><p>The value of the given column</p>
</td>
</tr>
</tbody>
</table>
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<h4 id="Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_GetValues_System_Object___" data-uid="Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.GetValues(System.Object[])">GetValues(Object[])</h4>
<div class="markdown level1 summary"><p>Stores all values of the current row into the provided object array</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public void GetValues(object[] values)</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.Object</span>[]</td>
<td><em>values</em></td>
<td><p>Where to store the values from this row</p>
</td>
</tr>
</tbody>
</table>
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<a href="https://github.com/Microsoft/sqltoolsservice/new/master/docs/apispec/new?filename=Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_GetXmlWithMaxCapacity_System_Int32_System_Int32_.md&amp;value=---%0Auid%3A%20Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.GetXmlWithMaxCapacity(System.Int32%2CSystem.Int32)%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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<h4 id="Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_GetXmlWithMaxCapacity_System_Int32_System_Int32_" data-uid="Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.GetXmlWithMaxCapacity(System.Int32,System.Int32)">GetXmlWithMaxCapacity(Int32, Int32)</h4>
<div class="markdown level1 summary"><p>Retrieves xml with a maximum number of bytes to return</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public string GetXmlWithMaxCapacity(int iCol, int maxCharsToReturn)</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.Int32</span></td>
<td><em>iCol</em></td>
<td><p>Column ordinal</p>
</td>
</tr>
<tr>
<td><span class="xref">System.Int32</span></td>
<td><em>maxCharsToReturn</em></td>
<td><p>Number of chars to return at maximum</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">System.String</span></td>
<td><p>String</p>
</td>
</tr>
</tbody>
</table>
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<a href="https://github.com/Microsoft/sqltoolsservice/new/master/docs/apispec/new?filename=Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_IsDBNull_System_Int32_.md&amp;value=---%0Auid%3A%20Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.IsDBNull(System.Int32)%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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<h4 id="Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_IsDBNull_System_Int32_" data-uid="Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.IsDBNull(System.Int32)">IsDBNull(Int32)</h4>
<div class="markdown level1 summary"><p>Whether or not the cell of the given column at the current row is a DBNull</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public bool IsDBNull(int i)</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.Int32</span></td>
<td><em>i</em></td>
<td><p>Column ordinal</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">System.Boolean</span></td>
<td><p>True if the cell is DBNull, false otherwise</p>
</td>
</tr>
</tbody>
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<a href="https://github.com/Microsoft/sqltoolsservice/new/master/docs/apispec/new?filename=Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_ReadAsync_System_Threading_CancellationToken_.md&amp;value=---%0Auid%3A%20Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.ReadAsync(System.Threading.CancellationToken)%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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<h4 id="Microsoft_SqlTools_ServiceLayer_QueryExecution_DataStorage_StorageDataReader_ReadAsync_System_Threading_CancellationToken_" data-uid="Microsoft.SqlTools.ServiceLayer.QueryExecution.DataStorage.StorageDataReader.ReadAsync(System.Threading.CancellationToken)">ReadAsync(CancellationToken)</h4>
<div class="markdown level1 summary"><p>Pass-through to DbDataReader.ReadAsync()</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public Task&lt;bool&gt; ReadAsync(CancellationToken cancellationToken)</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.Threading.CancellationToken</span></td>
<td><em>cancellationToken</em></td>
<td><p>The cancellation token to use for cancelling a query</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">System.Threading.Tasks.Task</span>&lt;<span class="xref">System.Boolean</span>&gt;</td>
<td></td>
</tr>
</tbody>
</table>
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