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POObject Type conversion while doing Group By
 

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  1. POObject Type conversion while doing Group By
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    <p>I have a List. I need to find the unique ExistingData records by applying Group By. Following code works.</p> <pre><code> var distinctItemsWorking = myCostPages .GroupBy(x =&gt; new { x.CostPageContent.Program, x.CostPageContent.Group, x.CostPageContent.Sequence }) .Select(y =&gt; y.First()); </code></pre> <p>Now I need to convert the unique list into a List. How can we achieve this conversion when we do Grouping?</p> <p><strong>C# Method</strong></p> <pre><code> public List&lt;CostPage&gt; GetCostPages(SearchEntity search, int pageIndex, int pageSize) { List&lt;ExistingData&gt; AllData = GetExistingData(); var allMatchingValues = from existingDatas in AllData where existingDatas.CostPageContent.Program == search.Program select existingDatas; var query = allMatchingValues; List&lt;ExistingData&gt; currentSelectionForExistingData = query .Skip(pageIndex * pageSize) .Take(pageSize) .ToList(); //var distinctItems = currentSelectionForExistingData.GroupBy(x =&gt; new { x.CostPageContent.Program, x.CostPageContent.Group, x.CostPageContent.Sequence }) // .Select(y =&gt; new CostPage() // { // CostPageContent = y.CostPageContent // } // ); var distinctItemsWorking = currentSelectionForExistingData.GroupBy(x =&gt; new { x.CostPageContent.Program, x.CostPageContent.Group, x.CostPageContent.Sequence }) .Select(y =&gt; y.First()); List&lt;CostPage&gt; myCostPages = new List&lt;CostPage&gt;(); foreach (ExistingData exist in distinctItemsWorking) { CostPage c = new CostPage(); c.CostPageContent = exist.CostPageContent; myCostPages.Add(c); } return myCostPages; } </code></pre> <p><strong>Other Classes</strong></p> <pre><code>public class ExistingData { public CostPageNumberContent CostPageContent { get; set; } public string ItemID { get; set; } } public class CostPage { public CostPageNumberContent CostPageContent { get; set; } } public class CostPageNumberContent { public string Program { get; set; } public string Group { get; set; } public string Sequence { get; set; } } public class SearchEntity { public string Program { get; set; } public string Sequence { get; set; } public string ItemID { get; set; } } </code></pre>
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    1. USLukas Winzenried
    1. USLijo
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
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      1. POObject Type conversion while doing Group By
      1. This table or related slice is empty.
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    1. COIt's not clear what you are trying to achieve. Are you trying to replace the `foreach`?
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      1. POObject Type conversion while doing Group By
      1. USDaniel Hilgarth
    2. CO@DanielHilgarth I want to remove the foreach. Also the conversion should happen on the same line as Group By
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      1. POObject Type conversion while doing Group By
      1. USLijo
 

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