I use Caliburn.Micro for my Silverlight application.
I have a view/viewmodel to create a new Item.
On the view there is one combobox.
The first time I open the view , fill in all fields, the Item is saved correctly.
The second time I open the view, fill in all fields, all teh values of them are changed in the object, except the value of the combobox, this property of Item stays 0 (it's an integer).
Any ideas why this is? I think the Caliburn framework is doing something weird.
thanks,
Filip
The code to open the view was:
EventAggreg.EventAgg.Publish(new ObjectDetailEvent() { ObjectDetail = new ObjectDTO() });
I replaced it with:
EventAggreg.EventAgg.Publish(new ObjectDetailEvent() { ObjectDetail = new ObjectDTO { LandId = 0 } });
LandId is the property bound to the combobox.
So when this is filled in by default, teh notify works perfect every time.
Related
I have a grid with databound method which shows the message 'No Data Found for the search' in case no data gets retrieved after performing search. Now i have added a radio buttons which when clicked needs to clear the old data from the grid. The issue is i am using the code $(grid).data("kendoGrid").dataSource.data([]); which does clear the grid but it also shows 'No Data Found for the search' message. Since user didn't perform any search but only changed the radio button it doesn't seem right to display that message in the grid. So, i was wondering if there was a way to clear the grid without invoking the databound method.
Grid code that calls databound function:
#(Html.Kendo().Grid<SearchModel>()
.Events(events => events.DataBound("gridDataBound"))
Databound code:
function gridDataBound(e) {
var grid = e.sender;
var gridName = "#" + grid.table.context.id;
if (grid.dataSource.total() == 0) {
var colCount = grid.columns.length;
$(e.sender.wrapper)
.find('tbody')
.append('<tr class="kendo-data-row"><td colspan="' + colCount + '" class="no-data">No Records Meet Your Search Criteria.</td></tr>');
}
$(gridName).find(".k-pager-wrap").hide();
};
Thanks.
As far as i know there is no way of doing this without putting an e.preventDefault() in the dataBound function. What you can do is maybe make a boolean that your dataBound function uses to check whether it should display the message or not?
Here's my problem: in my application I have a Dojo EnhancedGrid, backed up by an ItemFileReadStore. The page flow looks like this:
The user selects a value from a selection list.
The item from the list is posted on a server and then the grid is updated with data from the server (don't ask why, this is how it's supposed to work)
The new item is highlighted in the grid.
Now, the first two steps work like a charm; however, the third step gave me some headaches. After the data is successfully POSTed to the server (via dojo.xhrPost() ) the following code runs:
myGrid.store.close();
myGrid._refresh();
myGrid.store.fetch({
onComplete : function(items) {
for ( var i = 0; i < items.length; i++) {
if (items[i].documentType[0].id == documentTypeId) {
var newItemIndex = myGrid.getItemIndex(items[i]);
exportMappingGrid.selection.deselectAll();
exportMappingGrid.selection.addToSelection(newItemIndex);
}
}
}
});
Now, the selection of the grid is updated (i.e. the selection object has a selectedIndex > 0), but visually there's no response, unless I hover the mouse over the "selected" row. If I remove the .deselectAll() line (which I suspected as the culprit) then I sometimes end up with two items selected at once, although the grid selectionMode attribute is set to single.
Any thoughts on this one?
Thanks a lot.
You need to use setSelected(), like so
exportMappingGrid.selection.setSelected(newItemIndex, true);
The second parameter is true to select the row, false to unselect it.
This is what works for me:
grid.selection.clear();
grid.selection.addToSelection(newItemIndex);
grid.selection.getFirstSelected();
Jon
Let's say in a view I have a DojoX Mobile ListItem that is pulling an HTML view fragment into the DOM via AJAX and then transitioning to that view. Assume this is all working fine.
Now, I go back to the initial view that had that ListItem on it and click some other button that destroys that view node from the DOM. If I now click on that ListItem that previously loaded that view node into the DOM (which has now been removed), it will try to transition to a view that doesn't exist. It doesn't know that it has been removed.
Is there some type of way to tell a ListItem that it needs to fetch the HTML again because what was previously fetched no longer exists? I am not seeing anything about doing this in any documentation anywhere. I don't think a code sample is really necessary here, but I can provide a minimal one if necessary.
I went a different route and left the view exist in the DOM, and simply made a function that clears all sensitive data out of the view.
Okay, in this case, i guess you could hook the onShow function of your ListItem container(or any other onchange event). Create a listener for said handle to evaluate if your item needs reloading. Following is under the assumtion that it is the item.onclick contents showing - and not the label of your item which contains these informations
Or better yet, do all this during initialization so that your ListItem container will be an extended with custom onClick code.
Seems simple but may introduce some quirks, where/when/if you programatically change to this item, however here goes:
function checkItem() {
// figure out if DOM is present and if it should be
if( isLoggedIn() ) {
this.getChildren().forEach(function(listitem) {
if( dojo.query("#ID_TO_LOOK_FOR", listitem.domNode).length == 0 ) {
// this references the listItem, refresh contents.
// Note: this expects the listitem to be stateful, have no testing environment at time being but it should be
listitem.set("url", listitem.url);
}
});
}
}
Preferably, set this in your construct of the container for your ListItems
var listItemParent = new dojox.mobile.RoundRectList({
onShow : checkItem,
...
});
Or create listener
var listItemParent = dijit.byId('itemRegistryId');
// override onClick - calling inheritance chain once done
dojo.connect(listItemParent, "onClick", listItemParent, checkItem);
I'm developing a WP7 app and the application needs to change the icon of a button on the application bar given the state of a request.
I have tried:
if (App.Servers[index].ServerState == "Enabled")
{
DetailsAppBar.btnStart.IconUri = new Uri("/AppBar/appbar.stop.rest.png");
}
else
{
DetailsAppBar.btnStart.IconUri = new Uri("/AppBar/appbar.transport.play.rest.png");
}
This doesn't give me an error in the code, but it can't compile....
any hints to do this is appreciated :)
thanks
ApplicationBar is a special control that does not behave as other Silverlight controls (see Peter Torr's post on the subject). One of the consequences is that names given in XAML to app bar buttons generate fields in code-behind that are always null.
I'm guessing that in your case the btnStart field in DetailsAppBar is set to null, and thus trying to set its IconUri property results in a NullReferenceException being thrown.
To access a button in an application bar, you must instead reference it by its zero-based index in the buttons list. For instance, the code below returns a reference to the third button in the app bar:
button = (IApplicationBarIconButton)ApplicationBar.Buttons[2];
figured it out...
((ApplicationBarIconButton)ApplicationBar.Buttons[2]).IconUri = new Uri("/AppBar/appbar.stop.rest.png",UriKind.Relative);
did the trick :)
This code used to work in WSS 3.0 / MOSS 2007 in FeatureReceiver.FeatureActivated:
using (SPLimitedWebPartManager limitedWebPartManager = Site.GetLimitedWebPartManager("default.aspx", PersonalizationScope.Shared)) {
ListViewWebPart listViewWebPart = new ListViewWebPart {
Title = title,
ListName = list.ID.ToString("B").ToUpper(),
ViewGuid = view.ID.ToString("B").ToUpper()
};
limitedWebPartManager.AddWebPart(listViewWebPart, zone, position);
}
I'm trying to convert to SharePoint 2010 and it now fails with:
System.ArgumentException: The specified view is invalid.
at Microsoft.SharePoint.SPViewCollection.get_Item(Guid guid)
at Microsoft.SharePoint.WebPartPages.ListViewWebPart.EnsureListAndView(Boolean requireFullBlownViewSchema)
at Microsoft.SharePoint.WebPartPages.ListViewWebPart.get_AppropriateBaseViewId()
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartInternal(SPSupersetWebPart superset, Boolean throwIfLocked)
at Microsoft.SharePoint.WebPartPages.SPLimitedWebPartManager.AddWebPartInternal(WebPart webPart, String zoneId, Int32 zoneIndex, Boolean throwIfLocked)
at Microsoft.SharePoint.WebPartPages.SPLimitedWebPartManager.AddWebPart(WebPart webPart, String zoneId, Int32 zoneIndex)
Interestingly enough when I run it from a unit test it works, it only fails in FeatureActivated. When I debug with Reflector it is failing on this line:
this.view = this.list.LightweightViews[new Guid(this.ViewGuid)];
list.LightweightViews only returns one view, the default view, even though list.Views returns all of them. When running from a unit test LightweightViews returns all of my views. I have no idea what LightweightViews is supposed to mean and I'm running out of ideas. Anyone else got any?
To make it work, just do the following:
Do not set the viewguid property of the listviewwebpart object (leave it blank)
call the AddWebpart method
It will generate a new viewguid associated to a new hidden view.
Then if you want to customize this view, retrieve it from the list and customize it.
Hopefully no one ever has this problem or even sees this question. In the unfortunate event you get the same problem I have no specific solution. It eventually just started to work for me (8 hour later). I can tell you what I did right before it started working and hopefully it will help:
I went in through the UI and set the view that I was trying to set the list view web part to as the default view. I believe that's what fixed it and I have no idea why.
Some other notes on the problem:
I create all my lists and views through code
RunWithElevatedPrivileges did not help
Instantiating a new SPWeb in feature activated did not help
Setting ListViewXml = view.HtmlSchemaXml instead of setting ViewGuid made it not crash but the view was wrong when this code executed in FeatureActivated but correct when executed in a unit test.
Best I can do, sorry. If you're having this problem, good luck!
After reading this and this articles I found even more easiest solution.
When you add listviewwebpart to an any page, webpart automatically creates new hidden view in list, which is associated with this webpart (you can check it in SharePoint Manager).
When you switch view for listviewwebpart throw UI, it simply get copy of fields from selected view and push it in his hidden view.
All you need is get this view by ID, add\remove necessary fields and update view. Something like this:
var wpMngr = web.GetLimitedWebPartManager(workspaceWeb.Url + "/default.aspx", PersonalizationScope.Shared);
var attendeeListViewWebPart =
(ListViewWebPart)wpMngr.WebParts.Cast<WebPart>().FirstOrDefault(w => w.Title == Lists.AttendeesList);
var list = workspaceWeb.Lists[Lists.AttendeesList];
var view = list.Views.Cast<SPView>().FirstOrDefault(w => w.ID.ToString("B").Equals(attendeeListViewWebPart.ViewGuid, StringComparison.OrdinalIgnoreCase));
view.ViewFields.DeleteAll();
view.ViewFields.Add...
view.Update();
According to articles, you cann't update ViewGuid property for listviewwebpart.
I have been fighting with this today also.
For some odd reasons the code that you provided works for some cases but not in others.
I haven't had time to investigate more about that but what I can say is that if you are willing to use the XsltListViewWebPart (which is the replacement of the ListViewWebPart in SharePoint 2010), you will get rid of this annoying "bug".
I have just tested in myself.
Hope it helps!
I was getting this same error with an XsltListViewWebPart:
Exception: System.ArgumentException: The specified view is invalid.
at Microsoft.SharePoint.SPViewCollection.get_Item(Guid guid)
at Microsoft.SharePoint.SPList.GetView(Guid viewGuid)
at Microsoft.SharePoint.SPList.GetView(String viewGuid)
at Microsoft.SharePoint.WebPartPages.BaseXsltListWebPart.EnsureView()
at Microsoft.SharePoint.WebPartPages.BaseXsltListWebPart.get_AppropriateBaseViewId()
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartInternal(SPSupersetWebPart superset, Boolean throwIfLocked)
at Microsoft.SharePoint.WebPartPages.SPLimitedWebPartManager.AddWebPartInternal(WebPart webPart, String zoneId, Int32 zoneIndex, Boolean throwIfLocked)
at Microsoft.SharePoint.WebPartPages.SPLimitedWebPartManager.AddWebPart(WebPart webPart, String zoneId, Int32 zoneIndex)
Since SPList.GetView is a public method, I tried it in Powershell using the Guid from my new view. It worked fine.
I figured out that the problem was the context. I had been creating my view right before the ViewGuid assignment. When I moved the creation of my view outside of the SPLimitedWebPartManager, the code ran without any errors:
SPView view = CreateHiddenView(list);
using (SPLimitedWebPartManager manager = file.GetLimitedWebPartManager(PersonalizationScope.Shared))
{
try
{
XsltListViewWebPart webpart = new XsltListViewWebPart();
webpart.ListName = list.ID.ToString("B").ToUpperInvariant();
webpart.TitleUrl = list.DefaultViewUrl;
webpart.WebId = list.ParentWeb.ID;
webpart.Title = list.Title;
webpart.ViewGuid = view.ID.ToString("B").ToUpperInvariant();
manager.AddWebPart(webpart, "Right", 1);
}
finally
{
manager.Web.Dispose();
}
}