I have the following statement
xdoc.Descendants("Father").Select(p => new
{
Son1 = (string)p.Element("Son1").Value,
Son2 = (string)p.Element("Son2").Value,
Son3= (string)p.Element("Son3").Value,
Son4 = (string)p.Element("Son4").Value,
Son5 = (string)p.Element("Son5").Value
}).ToList().ForEach(p =>
{
Response.Write("Son1= " + p.Son1 + " ");
Response.Write("Son2=" + p.Son2 + " ");
Response.Write("Son3=" + p.Son3 + " ");
Response.Write(("Son4 =") + p.Son4 + " ");
Response.Write(("Son5 =") + p.Son5 + " ");
Response.Write("<br />");
});
and it works fine as long as i have only one instance of each son , the problem is that i have multiple instances of Son5, and i don´t know how to put Son5 inside of a list
Here is my XML code Example:
If you have several elements of same type, then you should parse them to list or other collection:
var fathers = from f in xdoc.Descendants("Father")
select new {
Son1 = (string)f.Element("Son1"),
Son2 = (string)f.Element("Son2"),
Son3= (string)f.Element("Son3"),
Son4 = (string)f.Element("Son4"),
Son5 = f.Elements("Son5").Select(s5 => (string)s5).ToList()
};
Some notes:
Don't use .Value of XElement or XAttribute - you can cast element itself to appropriate data type without accessing its value. Benefits - less code, more reliable in case element is missing (you will not get NullReferenceException)
Consider to use int or int? as elemenent values if your elements contain integer values
If you have single Father element, then don't work with collection of fathers. Just get xml root and check whether it's null or not. After that you can create single father object.
Writing response
foreach(var father in fathers)
{
Response.Write($"Son1={father.Son1} ");
Response.Write($"Son2={father.Son2} ");
Response.Write($"Son3={father.Son3} ");
Response.Write($"Son4={father.Son4} ");
Response.Write(String.Join(" ", father.Son5.Select(son5 => $"Son5={son5}"));
Response.Write("<br />");
}
Try this:
xdoc.Descendants("Father").Select(p => new
{
Son1 = p.Element("Son1").Value,
Son2 = p.Element("Son2").Value,
Son3= p.Element("Son3").Value,
Son4 = p.Element("Son4").Value,
Sons5 = p.Elements("Son5").Select(element => element.Value).ToList()
}).ToList().ForEach(p =>
{
Response.Write("Son1= " + p.Son1 + " ");
Response.Write("Son2=" + p.Son2 + " ");
Response.Write("Son3=" + p.Son3 + " ");
Response.Write("Son4 =" + p.Son4 + " ");
p.Sons5.ForEach(son5 => Response.Write("Son5 =" + son5 + " "));
Response.Write("<br />");
});
That will create a list of Son5 within your list of items, which you can iterate in the ForEach with another ForEach.
Related
I've got a block of code which sums up time togged for various tasks in a project and returns the total hours logged per project (intMinutesLogged). How do I get my results n descending order?
static async void NotifyEntriesByWorkSpace(Dictionary<string, List<TimeEntry>> dicEntriesByWorkspace, string strChatURL)
{
string strMessage = "";
foreach (var kvpEntry in dicEntriesByWorkspace)
{
var lstTimeEntries = kvpEntry.Value;
string strTitle = "";
var intMinutesLogged = 0;
var intMinutesBillable = 0;
var intMinutesNonBillable = 0;
foreach (var objTimeEntry in lstTimeEntries)
{
if (objTimeEntry.Billable)
{
intMinutesBillable += objTimeEntry.TimeInMinutes;
}
else
{
intMinutesNonBillable += objTimeEntry.TimeInMinutes;
}
}
strTitle = Workspaces.getWorkspaceFromCache(kvpEntry.Key).Title;
//Console.WriteLine(intMinutesLogged + ": " + strTitle + "m");
intMinutesLogged = intMinutesBillable + intMinutesNonBillable;
Console.WriteLine(TimeLoggedMessage(intMinutesLogged) + ": " + strTitle + " " + "(Billable: " + TimeLoggedMessage(intMinutesBillable) + ";" + " " + "Non-Billable: " + TimeLoggedMessage(intMinutesNonBillable) + ")");
strMessage += TimeLoggedMessage(intMinutesLogged) + ": " + strTitle + " " + "(Billable: " + TimeLoggedMessage(intMinutesBillable) + ";" + " " + "Non-Billable: " + TimeLoggedMessage(intMinutesNonBillable) + ")" + "\n";
}
await SendMessage(strChatURL, strMessage);
}
static string TimeLoggedMessage(int intMinutesLogged)
{
return intMinutesLogged / 60 + "h" + " " + intMinutesLogged % 60 + "m";
}
You could use LINQ for this: https://learn.microsoft.com/en-us/dotnet/api/system.linq.enumerable.orderbydescending?view=net-6.0
You could create a simple class or anonymous type to hold the integer values you're summing up (total minutes, billable minutes, non-billable minutes). Then you could populate a collection of this type within the code you shared and afterwards call OrderByDescending on it. You could order based on any of the three integer values.
Trying to delete <shipmentIndex Name=\"shipments\">whatever...</shipmentIndex>
if it appear more then 1 time, keeping only one.
I have surrounded the item i want to delete here with ***..
The code i am using worked before, but then i added .Value == "shipments"
and now it fail.
How can i keep this code and only fix .Value == "shipments" to work?
class Program
{
static void Main(string[] args)
{
string renderedOutput =
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>" +
"<RootDTO xmlns:json='http://james.newtonking.com/projects/json'>" +
"<destination>" +
"<name>xxx</name>" +
"</destination>" +
"<orderData>" +
"<items json:Array='true'>" +
"<shipmentIndex Name=\"items\" >111</shipmentIndex>" +
"<barcode>12345</barcode>" +
"</items>" +
"<items json:Array='true'>" +
"<shipmentIndex Name=\"items\">222</shipmentIndex>" +
"<barcode>12345</barcode>" +
"</items>" +
"<items json:Array='true'>" +
"<shipmentIndex Name=\"items\">222</shipmentIndex>" +
"<barcode>12345</barcode>" +
"</items>" +
"<misCode>9876543210</misCode>" +
"<shipments>" +
"<sourceShipmentId></sourceShipmentId>" +
"<shipmentIndex shipments=\"shipments\">111</shipmentIndex>" +
"</shipments>" +
"<shipments>" +
"<sourceShipmentId></sourceShipmentId>" +
"<shipmentIndex Name=\"shipments\">222</shipmentIndex>" +
****
"<shipmentIndex Name=\"shipments\">222</shipmentIndex>" +
****
"</shipments>" +
"</orderData>" +
"</RootDTO>";
var xml = XElement.Parse(renderedOutput);
xml.Element("orderData").Descendants("shipments")
.SelectMany(s => s.Elements("shipmentIndex")
.GroupBy(g => g.Attribute("Name").Value == "shipments")
.SelectMany(m => m.Skip(1))).Remove();
}
}
Not sure I understand the question 100% but here goes:
I am thinking you want to filter the results to only include those elements where the name attribute is equal to 'shipments', although not all of the shipmentIndex elements have a 'Name' attribute so you are probably getting a null reference exception. You need to add a check to ensure that the 'Name' attribute exists.
xml.Element("orderData").Descendants("shipments")
.SelectMany(s => s.Elements("shipmentIndex")
.GroupBy(g => g.Attribute("Name") != null && g.Attribute("Name").Value == "shipments")
.SelectMany(m => m.Skip(1))).Remove();
If you want to delete the duplicate from the renderedOutput string:
Match match = Regex.Match(renderedOutput, "<shipmentIndex Name=\"shipments\">([^<]*)</shipmentIndex>");
int index = renderedOutput.IndexOf(match.ToString());
renderedOutput = renderedOutput.Remove(index, match.ToString().Length);
I read data from a text file which is 27 MB file and contains 10001 rows, I need to handle large data. I perform some kind of processing in each row of data and then write it back to a text file. This is the code I have am using
StreamReader streamReader = System.IO.File.OpenText("D:\\input.txt");
string lineContent = streamReader.ReadLine();
int count = 0;
using (StreamWriter writer = new StreamWriter("D:\\ft1.txt"))
{
do
{
if (lineContent != null)
{
string a = JsonConvert.DeserializeObject(lineContent).ToString();
string b = "[" + a + "]";
List<TweetModel> deserializedUsers = JsonConvert.DeserializeObject<List<TweetModel>>(b);
var CreatedAt = deserializedUsers.Select(user => user.created_at).ToArray();
var Text = deserializedUsers.Where(m => m.text != null).Select(user => new
{
a = Regex.Replace(user.text, #"[^\u0000-\u007F]", string.Empty)
.Replace(#"\/", "/")
.Replace("\\", #"\")
.Replace("\'", "'")
.Replace("\''", "''")
.Replace("\n", " ")
.Replace("\t", " ")
}).ToArray();
var TextWithTimeStamp = Text[0].a + " (timestamp:" + CreatedAt[0] + ")";
writer.WriteLine(TextWithTimeStamp);
}
lineContent = streamReader.ReadLine();
}
while (streamReader.Peek() != -1);
streamReader.Close();
This code helps does well up to 54 iterations as I get 54 lines in the output file. After that it gives error "Index was outside the bounds of the array." at line
var TextWithTimeStamp = Text[0].a + " (timestamp:" + CreatedAt[0] + ")";
I am not very clear about the issue if the maximum capacity of array has been violated, if so how can I increase it or If I can write the individual line encountered in loop through
writer.WriteLine(TextWithTimeStamp);
And clean the storage or something that can solve this issue. I tried using list insead of array , still issue is the same.Please help.
Change this line
var TextWithTimeStamp = Text[0].a + " (timestamp:" + CreatedAt[0] + ")";
to
var TextWithTimeStamp = (Text.Any() ? Text.First().a : string.Empty) +
" (timestamp:" + (CreatedAt.Any() ? CreatedAt.First() : string.Empty) + ")";
As you are creating Text and CreatedAt collection objects, they might be empty (0 total item) based on some scenarios and conditions.
Those cases, Text[0] and CreatedAt[0] will fail. So, before using the first element, check if there are any items in the collection. Linq method Any() is used for that purpose.
Update
If you want to skip the lines that do not contain text, change this lines
var TextWithTimeStamp = Text[0].a + " (timestamp:" + CreatedAt[0] + ")";
writer.WriteLine(TextWithTimeStamp);
to
if (Text.Any())
{
var TextWithTimeStamp = Text.First().a + " (timestamp:" + CreatedAt.First() + ")";
writer.WriteLine(TextWithTimeStamp);
}
Update 2
To include all the stringss from CreatedAt rather than only the first one, you can add all the values in comma separated strings. A general example
var strings = new List<string> { "a", "b", "c" };
var allStrings = string.Join(",", strings); //"a,b,c"
I have method in C#, I have to return all values from ArrayList.
public string vyhledavaniOS()
{
foreach (Vozidlo voz in nabídka)
{
if (voz is OsobníVůz)
return (voz.TypVozidla() + ": SPZ: " + voz.JakaSPZ + ", Značka: " + voz.JakaZnacka + ", Barva: " + voz.JakaBarva);
}
}
This code returns only one value, is there any way, how to return all values?
Yes, you need to change the method to return an array of strings instead of only one string value. Something like this:
public List<string> vyhledavaniOS()
{
List<string> listToReturn = new List<string>();
foreach (Vozidlo voz in nabídka)
{
if (voz is OsobníVuz)
listToReturn.Add((voz.TypVozidla() + ": SPZ: " + voz.JakaSPZ + ", Znacka: " + voz.JakaZnacka + ", Barva: " + voz.JakaBarva));
}
return listToReturn;
}
My ultimate goal is to get the parent of one work item at a time recursively, until there are no more parents in the hierarchy. At the moment, there is nothing recursive yet, I am still at the point of optimizing the way I obtain the parent work item. I have thought of a way of doing this involving a query:
public WorkItem GetParentWorkItem(int id)
{
StringBuilder queryString = new StringBuilder("SELECT [System.Id]" +
" FROM WorkItemLinks " +
" WHERE [Source].[System.WorkItemType] = '" + TFS_TIMESHEET_WORK_ITEM_TYPE + "'" +
" AND [Source].[System.TeamProject] = '" + TFS_TIMESHEET_PROJECT_KEY + "'" +
" AND [Source].[System.Id] = " + id
);
Query wiQuery = new Query(GetWorkItemStore, queryString.ToString());
WorkItemLinkInfo[] wiTrees = wiQuery.RunLinkQuery();
WorkItem wi = GetWorkItemStore.GetWorkItem(wiTrees[1].TargetId);
return wi;
}
The problem with this method is that it gets all the linked work items, including predecessor, successor, child and parents. I knew that wiTrees[1] was the parent work item so I hard coded the index.
I found out a way to get the "parent" WorkItemTypeEnd object from the work item store:
WorkItemLinkTypeEnd linkTypEnd = GetWorkItemStore.WorkItemLinkTypes.LinkTypeEnds["Parent"];
Where do I go from here?
This works on TFS 2013:
var parent_link = work_item.WorkItemLinks.Cast<WorkItemLink> ().FirstOrDefault (x => x.LinkTypeEnd.Name == "Parent");
WorkItem parent_work_item = null;
if (parent_link != null)
parent_work_item = work_item_store.GetWorkItem (parent_link.TargetId);
Found a solution, which returns the parent WorkItem if there is a parent, if not returns null.
public WorkItem GetParentWorkItem(int id)
{
StringBuilder queryString = new StringBuilder("SELECT [System.Id]" +
" FROM WorkItemLinks " +
" WHERE [Source].[System.WorkItemType] = '" + TFS_TIMESHEET_WORK_ITEM_TYPE + "'" +
" AND [Source].[System.TeamProject] = '" + TFS_TIMESHEET_PROJECT_KEY + "'" +
" AND [Source].[System.Id] = " + id
);
Query wiQuery = new Query(GetWorkItemStore, queryString.ToString());
WorkItemLinkInfo[] wiTrees = wiQuery.RunLinkQuery();
int parentLinkId = GetWorkItemStore.WorkItemLinkTypes.LinkTypeEnds["Parent"].Id;
foreach (WorkItemLinkInfo linkInfo in wiTrees)
{
// -2 is the LinkTypeId for parent
if (linkInfo.LinkTypeId == parentLinkId)
{
workItem = GetWorkItemStore.GetWorkItem(linkInfo.TargetId);
break;
}
else
{
workItem = null;
}
}
return workItem;
}