I am using DotNet.Highcharts in conjunction with Visual Studio 2010. I have created an array of Series:
List<Series> allSeries = new List<Series>();
I then looped through a database and added several different Series. Then I created a Highchart and need to add the allSeries list to it. I have the code below that I used to create a Series one at a time. How can I take the allSeries list and pass it to SetSeries?
.SetSeries(new[]
{
new Series { Name = "Combiner 2", Data = new Data(myData2) },
new Series { Name = "Combiner 3", Data = new Data(myData3) }
});
if I am left to assume that the myData2 and myData3 objects are contained in or could be extracted from allSeries, then you should be able to do something like this:
.SetSeries(allSeries.Select(s=> new Series { Name = s.Name, Data = s.Data }));
EDIT:
If set series isn't looking for an IEnumerable<Series> but instead needs Object[] or Series[], then you could do this:
//casts series elements to object, then projects to array
.SetSeries(allSeries.Select(s=> (object)new Series { Name = s.Name, Data = s.Data }).ToArray());
or maybe this:
//projects series elements to array of series
.SetSeries(allSeries.Select(s=> new Series { Name = s.Name, Data = s.Data }).ToArray());
it all depends on what the method signature for SetSeries is.
Related
I have app of lists and items in each list. The list and their items are stored in two tables. A list data would be like "Grocery" and the list items like "bananas" etc. You can add lists and items in the app. Right now I have a list content page that lists the list names. Tap one and you go to a content page of the items in that list. This works, but I want to populate the Shell flyout with the list names from a database query in the AppShell.xaml.cs file. I want to do something like this:
ShellSection shell_section = new ShellSection();
var lists = await SLOMBListDataStore.GetSLOMBListsAsync(true);
foreach (var list in lists)
{
shell_section.Title = list.ListName;
shell_section.Icon = "tab_feed.png";
shell_section.Items.Add(new ShellContent() { Content = new SLOMBListDataPage(new SLOMBListDataViewModel(list.id)) });
this.Items.Add(shell_section);
}
BindingContext = this;
This, by the way, does not work. Creating the entries works manually if I use shell_section1, shell_section2 etc, but then you have to hard code the lists. Is it possible to do what I want, create the flyout from the query data? Thanks
Try to put the initialization code into the for loop like:
var lists = await SLOMBListDataStore.GetSLOMBListsAsync(true);
foreach (var list in lists)
{
ShellSection shell_section = new ShellSection();
shell_section.Title = list.ListName;
shell_section.Icon = "tab_feed.png";
shell_section.Items.Add(new ShellContent() { Content = new SLOMBListDataPage(new SLOMBListDataViewModel(list.id)) });
this.Items.Add(shell_section);
}
You need a new instance for each record.
I have implemented group observable collection like below.
Grouped Property
private ObservableCollection<Grouping<String, Request>> _groupedList = null;
public ObservableCollection<Grouping<String, Request>> GroupedList {
get {
return _groupedList;
}
set {
_groupedList = value;
RaisePropertyChanged(() => GroupedList);
}
}
Creating List
var list = new List<Request>();
var grouped = from Model in list
group Model by Model.Done into Group
select new Grouping<string, Request>(Group.Key, Group);
GroupedList = new ObservableCollection<Grouping<string, TModel>>(grouped);
Now i need to update one item in the list without reloading full list for performance.
i did tried like this , mylist.FirstOrDefault(i => i.Id== mymodel.Id); Not worked for me.
I need to pick that particular item and edit and update into the list again using linq or something but i stuck here for group observable collection no efficient details to do this., anybody having idea about this help please.
And finally i get updated single item, but i need to do that without
GroupedList = new ObservableCollection<Grouping<string, TModel>>(grouped);
Because everytime it create new list and bind into my view.Thats again big performance though.
Thanks in advance.
What I understand from your question is that you want to push an updated group without overwriting the entire ObservableCollection.
To do that:
var targetGroup = GroupedList.FirstOrDefault(i => i.Id == mymodel.Id);
var targetIndex = GroupedList.IndexOf(targetGroup);
var modifiedGroup = ... //Do whatever you want to do
GroupedList[targetIndex] = modifiedGroup;
This will trigger a 'replace' operation of the target grouping.
As seen as Google Api, i can easily put my data into a spreadsheet as below :
namespace MySpreadsheetIntegration
{
class Program
{
static void Main(string[] args)
{
SpreadsheetsService service = new SpreadsheetsService("MySpreadsheetIntegration-v1");
// TODO: Authorize the service object for a specific user (see other sections)
// Instantiate a SpreadsheetQuery object to retrieve spreadsheets.
SpreadsheetQuery query = new SpreadsheetQuery();
// Make a request to the API and get all spreadsheets.
SpreadsheetFeed feed = service.Query(query);
if (feed.Entries.Count == 0)
{
// TODO: There were no spreadsheets, act accordingly.
}
// TODO: Choose a spreadsheet more intelligently based on your
// app's needs.
SpreadsheetEntry spreadsheet = (SpreadsheetEntry)feed.Entries[0];
Console.WriteLine(spreadsheet.Title.Text);
// Get the first worksheet of the first spreadsheet.
// TODO: Choose a worksheet more intelligently based on your
// app's needs.
WorksheetFeed wsFeed = spreadsheet.Worksheets;
WorksheetEntry worksheet = (WorksheetEntry)wsFeed.Entries[0];
// Define the URL to request the list feed of the worksheet.
AtomLink listFeedLink = worksheet.Links.FindService(GDataSpreadsheetsNameTable.ListRel, null);
// Fetch the list feed of the worksheet.
ListQuery listQuery = new ListQuery(listFeedLink.HRef.ToString());
ListFeed listFeed = service.Query(listQuery);
// Create a local representation of the new row.
ListEntry row = new ListEntry();
row.Elements.Add(new ListEntry.Custom() { LocalName = "firstname", Value = "Joe" });
row.Elements.Add(new ListEntry.Custom() { LocalName = "lastname", Value = "Smith" });
row.Elements.Add(new ListEntry.Custom() { LocalName = "age", Value = "26" });
row.Elements.Add(new ListEntry.Custom() { LocalName = "height", Value = "176" });
// Send the new row to the API for insertion.
service.Insert(listFeed, row);
}
}
}
If i wrote "firstname" into the A1 and "lastname" into the B1, this is working, but i want to start this function ie. F21.
I mean, my localname firstname is in the cell F21 and i want google api to put my data "JOE" into F22 cell and ...
How can i do that ?
Regards.
CellFeed will do that, but list feed is more like an SQL style database table.
Suggest you use CellFeed or update your data SQL style, in whole rows.
I gave up with list feed when I discovered how little control you have over the position of the data.
Good examples:
CellFeed
https://gdata-java-client.googlecode.com/svn-history/r51/trunk/java/sample/spreadsheet/cell/CellDemo.java
ListFeed
https://gdata-java-client.googlecode.com/svn-history/r51/trunk/java/sample/spreadsheet/list/ListDemo.java
I'm trying to use DotNetZipLib-DevKit-v1.9 in my MVC3 Project to extract the files to a specific folder.
What i want is -- How to add multiple entries in zip.SelectEntries method.
Here is my code in controller action:
public ActionResult ExtractZip(string fileName, HttpPostedFileBase fileData)
{
string zipToUnpack = #"C:\Users\Public\Pictures\Sample Pictures\images.zip";
string unpackDirectory = System.IO.Path.GetTempPath();
using (ZipFile zip1 = ZipFile.Read(zipToUnpack))
{
// here, we extract every entry, but we could extract conditionally
// based on entry name, size, date, checkbox status, etc.
var collections = zip1.SelectEntries("name=*.jpg;*.jpeg;*.png;*.gif;");//This shows `0` items in collections
foreach (var item in collections)
{
item.Extract(unpackDirectory, ExtractExistingFileAction.OverwriteSilently);
}
}
return Json(true);
}
In this line var collections = zip1.SelectEntries("name=*.jpg;*.jpeg;*.png;*.gif;"); if i specify only single extension ,it works fine
ex:
var collections = zip1.SelectEntries("name=*.gif"); this works good
I've also seen SelectEntries method here, but it doesn't help though
How to add multiple entries ?
Finally i could answer my own question.
Inorder to select multiple entries we need to use OR and to select multiple entries use the following code:
var collections = zip1.SelectEntries("(name=*.jpg) OR (name=*.jpeg) OR (name=*.png) OR (name=*.gif)");
foreach (var item in collections)
{
item.Extract(unpackDirectory, ExtractExistingFileAction.OverwriteSilently);
}
I have a cluttery piece of code that I would like to shorten using Linq. It's about the part in the foreach() loop that performs an additional grouping on the result set and builds a nested Dictionary.
Is this possible using a shorter Linq syntax?
var q = from entity in this.Context.Entities
join text in this.Context.Texts on new { ObjectType = 1, ObjectId = entity.EntityId} equals new { ObjectType = text.ObjectType, ObjectId = text.ObjectId}
into texts
select new {entity, texts};
foreach (var result in q)
{
//Can this grouping be performed in the LINQ query above?
var grouped = from tx in result.texts
group tx by tx.Language
into langGroup
select new
{
langGroup.Key,
langGroup
};
//End grouping
var byLanguage = grouped.ToDictionary(x => x.Key, x => x.langGroup.ToDictionary(y => y.PropertyName, y => y.Text));
result.f.Apply(x => x.Texts = byLanguage);
}
return q.Select(x => x.entity);
Sideinfo:
What basically happens is that "texts" for every language and for every property for a certain objecttype (in this case hardcoded 1) are selected and grouped by language. A dictionary of dictionaries is created for every language and then for every property.
Entities have a property called Texts (the dictionary of dictionaries). Apply is a custom extension method which looks like this:
public static T Apply<T>(this T subject, Action<T> action)
{
action(subject);
return subject;
}
isn't this far simpler?
foreach(var entity in Context.Entities)
{
// Create the result dictionary.
entity.Texts = new Dictionary<Language,Dictionary<PropertyName,Text>>();
// loop through each text we want to classify
foreach(var text in Context.Texts.Where(t => t.ObjectType == 1
&& t.ObjectId == entity.ObjectId))
{
var language = text.Language;
var property = text.PropertyName;
// Create the sub-level dictionary, if required
if (!entity.Texts.ContainsKey(language))
entity.Texts[language] = new Dictionary<PropertyName,Text>();
entity.Texts[language][property] = text;
}
}
Sometimes good old foreach loops do the job much better.
Language, PropertyName and Text have no type in your code, so I named my types after the names...