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POCombine anonymous columns to form new collection
 

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  1. POCombine anonymous columns to form new collection
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    <p>I’ve been reviewing many, many postings/responses here but haven’t found (or perhaps understood is better description) a solution. I’m trying to develop a linq statement(s) so that I can parse collections of data. </p> <p>I have an anonymous collection of data where I need to be able to specify two unrelated columns and combine their values to form a new collection of their combined value. The collection is read into an IEnumerable> (and the result needs to the same).</p> <p>Depending upon the data sample, the columns to be combined will vary. In scenario A (see data sample #1) columns 1 &amp; 3 are needing to be combined to generate a result set (see result #1). In scenario B (see data sample #2) columns 2 &amp; 4 are needing to be combined to generate a result set (see result #2). Column headings (first row) aren’t known ahead of time, and all values are strings (empty string and non-null).</p> <p>What I would love to see something along the lines of the following:</p> <pre><code>int ColyY = 1; int ColyX = 3; var result = FetchMergedColumn(ColX, ColY); </code></pre> <p><strong>Data sample #1:</strong></p> <pre><code>Col1 Col2 Col3 Col4 Fish Blue Cloudy 10 Dog Red Rain 33 Cat Black Thunder 55 </code></pre> <p><strong>Result #1:</strong></p> <pre><code>Fish Cloudy Dog Rain Cat Thunder </code></pre> <p><strong>Data sample #2:</strong></p> <pre><code>Col1 Col2 Col3 Col4 Blue Fish 10 Cloudy Red Dog 33 Rain Black Cat 55 Thunder </code></pre> <p><strong>Result #2:</strong></p> <pre><code>Fish Cloudy Dog Rain Cat Thunder </code></pre> <p>Can anyone help me out?</p>
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    1. USAnurag Ranjhan
    1. USLabDog
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      1. VTDownMod
    1. COHow does the collection look like? Is it really a `IEnumerable<T>`, where `T` is an anonymous type? Because that doesn't make much sense. What should be the type of `result`?
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      1. USsvick
    2. COWhat exactly do you mean by ``column``? You said you have a anonymous collection of data. Are these 'columns' properties of the anonymous type that makes up the collection?
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      1. POCombine anonymous columns to form new collection
      1. USJacek Gorgoń
    3. COBased on the comments and @svick's comment on my answer, I think we need some clarification on the form of your sample data...
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      1. POCombine anonymous columns to form new collection
      1. USSteve Wilkes
 

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