<div>
Many thanks Hengel.<br />
Is it returning one array per relevant spreadsheet columns, by such line?<br />
<br />
What is the purpose to 'care' about only 'First()' below?<br />

<pre><code class="code-1 nolinks" id="code-20-41771279-1"><span>                                                    IEnumerable&lt;DocumentFormat.OpenXml.Spreadsheet.Column&gt; ic = cs.Elements&lt;DocumentFormat.OpenXml.Spreadsheet.Column&gt;().Where(r =&gt; r.Min == columnIndex).Where(r =&gt; r.Max == columnIndex);</span>
<span>                                                    if (ic.Count() &gt; 0)</span>
<span>                                                    {</span>
<span>                                                        DocumentFormat.OpenXml.Spreadsheet.Column c = ic.First();</span>
<span>                                                        double cc = c.Width;</span>
<span>                                                        sw.WriteLine(&quot;Cell width: {0}&quot;, cc.ToString());</span>
<span>                                                    }</span>
</code></pre>
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<div>
First() returns what the name is suggesting: the first (and eventually the only) item from the collection.<br />
this avoids to &quot;loop&quot; on the collection.
</div>


<div>
To the original line, why does it need to check both Min and Max in there?
</div>


<div>
I don't know. that is the application logic presumably<br />
it surely tries to consider only cells that are not merged, and at exaclty that position
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<div>
Is such line only destined to check for non-merged cell? How to detect that relevant cell is a merged cell?
</div>


<div>
Thanks a lot Hengel. Where is the documentation located at?
</div>


<div>
sorry, I had not pasted the URL above:<br />
<a href="https://msdn.microsoft.com/en-us/library/documentformat.openxml.spreadsheet.column(v=office.14).aspx" rel="ugc nofollow">https://msdn.microsoft.com/en-us/library/documentformat.openxml.spreadsheet.column(v=office.14).aspx</a><br />
<br />
you can find such information really quickly, using google, you search this:<br />
DocumentFormat.OpenXml.Spr<wbr />eadsheet.C<wbr />olumn site:microsoft.com
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<div>
<div class="content wysiwyg-content">
Hi,<br />
What is the meaning of this?<br />

<pre><code class="code-1 nolinks" id="code-10-28965774-1"><span>IEnumerable&lt;DocumentFormat.OpenXml.Spreadsheet.Column&gt; ic = cs.Elements&lt;DocumentFormat.OpenXml.Spreadsheet.Column&gt;().Where(r =&gt; r.Min == columnIndex).Where(r =&gt; r.Max == columnIndex);</span>
</code></pre>
</div>
</div>


Hi,
What is the meaning of this?
(CODE)

Line meaning

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).

The .NET Framework is not specific to any one programming language; rather, it includes a library of functions that allows developers to rapidly build applications. Several supported languages include C#, VB.NET, C++ or ASP.NET.

.NET Programming

Kernel and system programming is the process of creating the software necessary for a computer or device to function and operate other programs. Some operating systems (such as Microsoft Windows) are proprietary, but others, such as the various Linux distributions, are open source.

System Programming

A programming language is a formal constructed language designed to communicate instructions to a machine, particularly a computer. Thousands of different programming languages have been created, mainly in the computer field, and many more still are being created every year. The description of a programming language is usually split into the two components of syntax (form) and semantics (meaning). Some languages are defined by a specification document (for example, the C programming language is specified by an ISO Standard), while other languages (such as Perl) have a dominant implementation that is treated as a reference. Some languages have both, with the basic language defined by a standard and extensions taken from the dominant implementation being common.

Programming Languages-Other

C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.