Can anyone guide me how to load images through image_url tags in my image control named BOOK_URL under a loop? i have fetched other book info under similar_books tag of each book tag but unable to fetch images of all book tags in my image control.
My code looks like this.
var xdoc = XDocument.Load("https://www.goodreads.com/book/title.xml?key=Uxb0zPb86N4STVy2ECWYA&title=" + title.Text);
IEnumerable<XElement> allElements =
xdoc.Descendants("similar_books").Descendants("book");
foreach (XElement result in allElements)
{
BOOK_URL.Source = BOOK_URL.Source + "\n"+
ImageSource.FromUri(new Uri(result.Element("image_url").Value)) ;
search.Text = search.Text + "\n" +
" Book Name: " + result.Element("title").Value + "\n" +
" ISBN: " + result.Element("isbn").Value + "\n" +
"Average Ratings: " + result.Element("average_rating").Value + "\n";
}
}
Also my url of xml response look like this:
https://www.goodreads.com/book/title.xml?key=Uxb0zPb86N4STVy2ECWYA&title=DUNE
i am getting all info except for images. Please help me to fetch all images of all book tags as i have fetched other book info rather than images.
this is garbage and should not even compile
BOOK_URL.Source = BOOK_URL.Source + "\n"+
ImageSource.FromUri(new Uri(result.Element("image_url").Value));
assuming that BOOK_URL is an Image control, you want to do
BOOK_URL.Source = ImageSource.FromUri(new Uri(result.Element("image_url").Value));
note that if you have multiple image urls, only the last one in the loop will be assigned
if you have two image controls, you could do this
IEnumerable<XElement> images = xdoc.Descendants("similar_books").
Descendants("book").
Descendants("image_url");
image1.Source = ImageSource.FromUri(new Uri(images[0].Value));
image2.Source = ImageSource.FromUri(new Uri(images[1].Value));
Trying to learn JSoup but having problems with response that may be due to structure issues (or stupidity, you tell me!). I do a simple query for "a[href]" but it only finds a subset 13 (text search tells me there are 162!). Why does it not find all?
Document doc = Jsoup.connect(J_URL).get();
String srchCSS = "a[href]";
Elements select = doc.select(srchCSS);
Iterator<Element> iterator = select.iterator();
Log.w(TAG, "'" + srchCSS + "' # " + select.size());
while (iterator.hasNext()) {
Element x = iterator.next();
System.out.println("'" + srchCSS + "': " + x.text());
}
Log.e(TAG, "%%% COMPLETE %%%");
I want to get the text from 'p' (see RED arrow). The a[href] above it is NOT being found?!?
I am getting data from these two tables using linq to entities, relationships exist between tables on primary foriegn key basis, result set is coming but every row is repeating multiple times in reult however in Db there are not duplicate rows. Don't understand how to resolve this.
here is piece of code:
StringBuilder sb = new StringBuilder();
string text = txtBoxSearch.Text;
OLSContainer ols = new OLSContainer();
var result = from tex in ols.COURSEs
from another in ols.UNITs
where tex.courseName.Contains(text) || tex.description.Contains(text) || another.unitName.Contains(text)
select new { tex,another };
foreach (var cours in result)
{
sb.AppendLine("<h2 id='" + cours.tex.courseID + "'><a href='admin.aspx?id='" + cours.tex.courseID + "''>" + cours.tex.courseName + "</a></h2>");
}
foreach (var cours in result)
{
sb.AppendLine("<h2 id='" + cours.another.unitID + "'><a href='admin.aspx?id='" + cours.another.unitID + "''>" + cours.another.unitName + "</a></h2>");
}
The problem is this:
var result = from tex in ols.COURSEs
from another in ols.UNITs
It is a cross join. It matches every course with every unit. It doesn't use any FK/PK because no relation (navigation property) is used in this query. To use the relation you have to modify it to:
var result = from tex in ols.COURSEs
from another in tex.SomeNavigationProperty // tex
I'm trying to implement this solution to "grey out" past events in Fullcalendar, but I'm not having any luck. I'm not too well versed in Javascript, though, so I assume I'm making some dumb mistakes.
I've been putting the suggested code into fullcalendar.js, inside the call for daySegHTML(segs) around line 4587.
I added the first two lines at the end of the function's initial var list (Why not, I figured)—so something like this:
...
var leftCol;
var rightCol;
var left;
var right;
var skinCss;
var hoy = new Date;// get today's date
hoy = parseInt((hoy.getTime()) / 1000); //get today date in unix
var html = '';
...
Then, just below, I added the other two lines inside the loop:
for (i=0; i<segCnt; i++) {
seg = segs[i];
event = seg.event;
classes = ['fc-event', 'fc-event-skin', 'fc-event-hori'];
if (isEventDraggable(event)) {
classes.push('fc-event-draggable');
}
unixevent = parseInt((event.end.getTime()) / 1000); //event date in Unix
if (unixevent < hoy) {classes.push('fc-past');} //add class if event is old
if (rtl) {
if (seg.isStart) {
classes.push('fc-corner-right');
}
...
Running this code results in a rendered calendar with no events displayed and an error message: Uncaught TypeError: Cannot call method 'getTime' of null
The "null" being referred to is, apparently, event.end.getTime(). But I'm not sure I understand what exactly is going wrong, or how things are being executed. As written, it seems like it should work. At this point in the code, from what I can tell, event.end contains a valid IETF timecode, but for some reason it's "not there" when I try to run it through getTime()?
This isn't a mission-critical tweak for me, but would still be nice—and I'd like to understand what's going on and what I'm doing wrong, as well! Any help greatly appreciated!
If you are using FullCalendar2 with Google Calendar, you will need to use the version of the code below. This uses Moment.js to do some conversions, but since FC2 requires it, you'll be using it already.
eventRender: function(event, element, view) {
var ntoday = new Date().getTime();
var eventEnd = moment( event.end ).valueOf();
var eventStart = moment( event.start ).valueOf();
if (!event.end){
if (eventStart < ntoday){
element.addClass("past-event");
element.children().addClass("past-event");
}
} else {
if (eventEnd < ntoday){
element.addClass("past-event");
element.children().addClass("past-event");
}
}
}
As per FullCalendar v1.6.4
Style past events in css:
.fc-past{background-color:red;}
Style future events in css:
.fc-future{background-color:red;}
There's no need to fiddle with fullcalendar.js. Just add a callback, like:
eventRender: function(calev, elt, view) {
if (calev.end.getTime() < sometime())
elt.addClass("greyclass");
},
you just have to define the correct CSS for .greyclass.
Every event has an ID associated with it. It is a good idea to maintain your own meta information on all events based on their ids. If you are getting the events popupated from a backend database, add a field to your table. What has worked best for me is to rely on callbacks only to get the event ids and then set/reset attributes fetched from my own data store. Just to give you some perspective, I am pasting below a section of my code snippet. The key is to target the EventDAO class for all your needs.
public class EventDAO
{
//change the connection string as per your database connection.
//private static string connectionString = "Data Source=ASHIT\\SQLEXPRESS;Initial Catalog=amit;Integrated Security=True";
//this method retrieves all events within range start-end
public static List<CalendarEvent> getEvents(DateTime start, DateTime end, long nParlorID)
{
List<CalendarEvent> events = new List<CalendarEvent>();
// your data access class instance
clsAppointments objAppts = new clsAppointments();
DataTable dt = objAppts.SelectAll( start, end);
for(int i=0; i<dt.Rows.Count; ++i)
{
CalendarEvent cevent = new CalendarEvent();
cevent.id = (int)Convert.ToInt64(dt.Rows[i]["ID"]);
.....
Int32 apptDuration = objAppts.GetDuration(); // minutes
string staffName = objAppts.GetStaffName();
string eventDesc = objAppts.GetServiceName();
cevent.title = eventDesc + ":" + staffName;
cevent.description = "Staff name: " + staffName + ", Description: " + eventDesc;
cevent.start = (DateTime)dt.Rows[i]["AppointmentDate"];
cevent.end = (DateTime) cevent.start.AddMinutes(apptDuration);
// set appropriate classNames based on whatever parameters you have.
if (cevent.start < DateTime.Now)
{
cevent.className = "pastEventsClass";
}
.....
events.Add(cevent);
}
}
}
The high level steps are as follows:
Add a property to your cevent class. Call it className or anything else you desire.
Fill it out in EventDAO class while getting all events. Use database or any other local store you maintain to get the meta information.
In your jsonresponse.ashx, retrieve the className and add it to the event returned.
Example snippet from jsonresponse.ashx:
return "{" +
"id: '" + cevent.id + "'," +
"title: '" + HttpContext.Current.Server.HtmlEncode(cevent.title) + "'," +
"start: " + ConvertToTimestamp(cevent.start).ToString() + "," +
"end: " + ConvertToTimestamp(cevent.end).ToString() + "," +
"allDay:" + allDay + "," +
"className: '" + cevent.className + "'," +
"description: '" +
HttpContext.Current.Server.HtmlEncode(cevent.description) + "'" + "},";
Adapted from #MaxD The below code is what i used for colouring past events grey.
JS for fullcalendar pulling in Json
events: '/json-feed.php',
eventRender: function(event,element,view) {
if (event.end < new Date().getTime())
element.addClass("past-event");
},
other options ....
'event.end' in my Json is a full date time '2017-10-10 10:00:00'
CSS
.past-event.fc-event, .past-event .fc-event-dot {
background: #a7a7a7;
border-color: #848484
}
eventDataTransform = (eventData) => {
let newDate = new Date();
if(new Date(newDate.setHours(0, 0, 0, 0)).getTime() > eventData.start.getTime()){
eventData.color = "grey";
}else{
eventData.color = "blue";
}
return eventData;
}
//color will change background color of event
//textColor to change the text color
Adapted from #Jeff original answer just simply check to see if an end date exists, if it does use it otherwise use the start date. There is an allDay key (true/false) but non allDay events can still be created without an end date so it will still throw an null error. Below code has worked for me.
eventRender: function(calev, elt, view) {
var ntoday = new Date().getTime();
if (!calev.end){
if (calev.start.getTime() < ntoday){
elt.addClass("past");
elt.children().addClass("past");
}
} else {
if (calev.end.getTime() < ntoday){
elt.addClass("past");
elt.children().addClass("past");
}
}
}
Ok, so here's what I've got now, that's working (kind of):
eventRender: function(calev, elt, view) {
var ntoday = new Date();
if (calev.start.getTime() < ntoday.getTime()){
elt.addClass("past");
elt.children().addClass("past");
}
}
In my stylesheet, I found I needed to restyle the outer and inner elements to change the color; thus the elt.children().addclass addition.
The only time check I could get to work, lacking an end time for all day events, was to look at the start time - but this is going to cause problems with multi-day events, obviously.
Is there another possible solution?
I need to show items like in below image.
I'm using this code to bind dropdownlist.
var options = (from option in _serviceOptions
select new
{
OptionId = option.OptionId,
OptionText = option.OptionText + " - " + option.Price + "£/month"
}).ToList();
myDdl.DataSource = options;
myDdl.DataValueField = "OptionId";
myDdl.DataTextField = "OptionText";
myDdl.DataBind();
_serviceOptions is the resultset returned by calling stored procedure using L2S
The problem is, it is again encoding the & to & before rendering to the browser.
Use the pound sign £ instead of £. It works here. The £ will be converted to £ which is equal to £.
var options = (from option in _serviceOptions
select new
{
OptionId = option.OptionId,
OptionText = option.OptionText + " - " + option.Price + "£/month"
}).ToList();