<lines> <line> <line_no>11</line_no> <qty>50</qty> </line> <line> <line_no>12</line_no> <qty>150</qty> </line> <line> <line_no>13</line_no> <qty>100</qty> </line> <line> <line_no>14</line_no> <qty>90</qty> </line> <line> <line_no>15</line_no> <qty>40</qty> </line> </lines>
int total=SelectSingleNode("/lines/line/qty").Value;
sum(//qty)
//Load the document XPathDocument xDoc=new XPathDocument("XMLFilePath")); //Create XPathNavigator System.Xml.XPath.XPathNavigator nav = xDoc.CreateNavigator(); //Use Evaluate method to get typed result of evaluated expressions //Here we get it as string string sum=nav.Evaluate("sum(/lines/line/qty)").ToString();
var
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