Hpw to Group XML based on an element and sum values by multiplying two elements

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Hi Firends,

I need to group the XML based on Mod1 while summing the group values i need to multiply two elements.
Points to remember
sometimes Mod1 will not be present under Positions. in that case consider it as null

Please Help

XML

<Positions>
  <Office>101</Office>
  <Account>10239</Account>
  <Mod1>STK</Mod1>
  <AmountClosingPrice>10.00</AmountClosingPrice>
  <Quantity>500.00</Quantity>
</Positions>

<Positions>
  <Office>101</Office>
  <Account>10239</Account>
  <Mod1>STK</Mod1>
  <AmountClosingPrice>20.00</AmountClosingPrice>
  <Quantity>200.00</Quantity>
</Positions>

  <Positions>
    <Office>101</Office>
    <Account>10239</Account>
    <Mod1>MUN</Mod1>
    <AmountClosingPrice>10.00</AmountClosingPrice>
    <Quantity>200.00</Quantity>
  </Positions>

    <Positions>
      <Office>101</Office>
      <Account>10239</Account>
      <Mod1>MUN</Mod1>
      <AmountClosingPrice>5.00</AmountClosingPrice>
      <Quantity>200.00</Quantity>
    </Positions>

      <Positions>
        <Office>101</Office>
        <Account>10239</Account>
        <AmountClosingPrice>10.00</AmountClosingPrice>
        <Quantity>10.00</Quantity>
      </Positions>

      <Positions>
        <Office>101</Office>
        <Account>10239</Account>
        <Mod1>MUN</Mod1>
        <AmountClosingPrice>5.00</AmountClosingPrice>
        <Quantity>100.00</Quantity>
      </Positions>
      <Positions>

C#

docm=XDocument.Parse(xmlDocumentWithoutNs.ToString());
           var result = docm.Descendants("Positions")
                               .GroupBy(mod => mod.Element("Mod1"))
                               .Select(s=> new{
                                   Mod=s.Key,
                                   Count=s.Count(),
                                   mktval =s.Sum(q=>(decimal?)q.Element("Quantity") * (decimal?)q.Element("AmountClosingPrice"))
                               })
                               .ToList();

Expected Result

STK 2 9000
MUN 2 3000
Null 2 600

Thanks

Posted 1-Aug-15 10:00am

jinesh sam

Updated 1-Aug-15 10:15am

v4

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2 solutions

Solution 1

I think one easy way is to do this in two phases. The first query will convert the data from XML to variable data types and the second does the grouping based on the first query.

So consider something like the following

C#

var intermediate = from item in  docm.Descendants("Positions")
                  select new {
                     Mod = (string)item.Element("Mod1"),
                     Quantity = (decimal?)item.Element("Quantity"),
                     AmountClosingPrice = (decimal?)item.Element("AmountClosingPrice")
                  };

var result = from item in intermediate
          group item by item.Mod into groupedItem
          select new {
             Mod = groupedItem.Key,
             mktval = groupedItem.Sum(item => item.Quantity * item.AmountClosingPrice)
          };

Posted 1-Aug-15 10:49am

Wendelius

Comments

jinesh sam 2-Aug-15 10:30am

Thanks for your support...:)

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DamithSL · Accepted Answer · 2015-08-01T18:48:00

Solution 2

change

C#

.GroupBy(mod => mod.Element("Mod1"))

to

C#

.GroupBy(mod => (string)mod.Element("Mod1"))

Posted 1-Aug-15 18:48pm

DamithSL

Comments

jinesh sam 2-Aug-15 10:29am

Thanks...Its helps me:)

DamithSL 2-Aug-15 10:32am

You are welcome!

Maciej Los 3-Aug-15 2:40am

5ed!

DamithSL 3-Aug-15 2:43am

After Long Time :)

Thank You Maciej

Maciej Los 3-Aug-15 3:49am

;)