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    copied!<p>Below is my code and it works fine but only for the first row the soldqty and Amount values are getting doubled.while other rows data is fine.I am not able to understand why only the first row data Sum(SoldQty) is getting doubled.</p> <pre><code>decimal? SoldQty, stockinhand,SellPrice,Amount,CostPrice; string ItemCode, Description,UOM,BarCode,SoldDate,Department,Category,User; var resQuery = from row in dtFilter.AsEnumerable() group row by row.Field&lt;string&gt;("Item Code") into g select dtFilter.LoadDataRow(new object[] { ItemCode=g.Key, Description=g.Select(r=&gt;r.Field&lt;string&gt;("Description")).First&lt;string&gt;(), UOM=g.Select(r=&gt;r.Field&lt;string&gt;("UOM")).First&lt;string&gt;(), SoldQty = g.Sum(r =&gt; r.Field&lt;decimal?&gt;("Sold Qty")).Value, stockinhand=g.Select(r=&gt;r.Field&lt;decimal?&gt;("Stock in Hand")).First&lt;decimal?&gt;(), SellPrice=g.Select(r=&gt;r.Field&lt;decimal?&gt;("Sell Price")).First&lt;decimal?&gt;(), Amount = g.Sum(r =&gt; r.Field&lt;decimal?&gt;("Amount")).Value, CostPrice = g.Sum(r =&gt; r.Field&lt;decimal?&gt;("Cost Price")).Value, BarCode=g.Select(r=&gt;r.Field&lt;string&gt;("Barcode")).First&lt;string&gt;(), SoldDate=g.Select(r=&gt;r.Field&lt;string&gt;("SoldDate")).Last&lt;string&gt;(), Department=g.Select(r=&gt;r.Field&lt;string&gt;("Department")).First&lt;string&gt;(), Category=g.Select(r=&gt;r.Field&lt;string&gt;("Category")).First&lt;string&gt;(), User=g.Select(r=&gt;r.Field&lt;string&gt;("User")).First&lt;string&gt;(), }, false); </code></pre>
 

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