ListView Inserting Event - ListViewInsertEventArgs Values Collection Is Empty?
Aug 6, 2010
Given the following InsertItemTemplate (simplified) I'm not getting anything back in the event object's Values collection.
[code]....
I'm binding the listview to a collection attached to my nHibernate model object (SearchObject.SearchItems). This collection doesn't have insert or update handling like an object datasource would, so I want to handle the insert/update events manually. Is there a way to get these values to come through automatically, or do I have to manually grab each value from its control when I handle this event?
I have a ListView control that makes use of a DataPager. In each row of the ListView there is a text box where the user will enter some notes relevant to that particular record. Then they use the DataPager to navigate to the second page of records. If they then return back to the first page in the ListView the text they entered is gone.
Question: Is there a way (through use of a paging event or databound event maybe?) to retain the textbox values between paging events ?
I would like the user to be able navigate backward or forward and still see the text heshe has entered.
Is there any way to enable alternative ListView (LV2) or any other control in case when ListView (LV1) returns no records from DB? I already have emptydatatamplate designed for this case, but I need to enable a new ListView below in this particular case and I don't know how to achieve this!
I have an ASP.NET file upload control which sits as part of a form. The file upload control is on the content page while the form definition is on a master page across the site. I've added multipart/form-enc to the form on the master page.I'm using jQuery to submit the form as I show a dialog box from jQuery UI.When I post, no file is returned to the server. The file upload control has no file and HttpFileCollection is empty.
In any event I override I don't have any attributes in my "base.Attributes or this.Attributes" collection. How's that possible? The rendered output clearly shows an id and an href attribute.
I'm trying to get rid of the href part and put in my own. Unfortunately Attributes.Remove("href") won't work.. because there's no such attribute. Or any attribute for that matter.
I'm using a custom ashx handler to handle a file upload. When run locally, the file uploads fine.When I use the same setup on the web server I get a "Index out of range" error.In firebug I see the binary contents of the file in the post data and the file name is also passed in the query string.Any one seen this before?I`m sure its something minor, but its driving me up the wall.
Request header: Key Value Request POST /Secured/UploadHandler.ashx? HTTP/1.1 Accept text/html, application/xhtml+xml, */* Referer http://cms.webstreet.co.il/Secured/fileUpload.aspx Accept-Language he-IL User-Agent Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0) Content-Type multipart/form-data; boundary=---------------------------7db13b13d1b12 Accept-Encoding gzip, deflate [code]...
I have an aspx page where I want to post values to a new page and then redirect to that new page. I don't get any errors and the redirection occurs but the AllKeys collection is always empty.
In an MVC view, I'm looking for a way to determine if a parent entity's collection of child entities is empty, so I can decide if I need to call a RenderPartial() or not.
For a one-to-one I've been using the following:
<% if (Model.Book.GenreReference.EntityKey != null) %> {.....}
but I'm unsure how to do it in a one-to-many scenario, or if it can even be done without the use of Include() or Load().
I have an ASP .Net TreeView control that I am dynamically adding tree nodes to from my codebehind on Page_PreRender. The TreeView is populated nicely and the appropriate checkboxes are where they are expected to be. For each of these nodes the SelectAction=TreeNodeSelectAction.None. However, when accessing the TreeView CheckedNodes() collection in my codebehind after selecting a few nodes (checkboxes are selected) and clicking a submit button to post back to the server in the button click event, my CheckedNodes.count() = 0. I can not figure out why my CheckedNodes collection in the codebehind does not contain the nodes that I have checked from the GUI.
I am using Asp.net and requirement specifies i use html input to post files to server rather than asp:fileupload.[ Reason : Add more html input file controls similar to CPanel file manager.(i.e) clicking on link adds another file input from which user can select another file*.But when ever i post back Request Files collection is always empty.* HTML FORM:
<form method="post" enctype="multipart/form-data" action="documents.aspx"> <div> <input type="file" name="attachment" id="attachment" onchange="validate(this)" /> <span class="none">Filename should be within (1-25) letters long. Can Contain only letters & numbers</span> <div id="moreUploads"> </div> <div id="moreUploadsLink" style="display: none;"> <a href="javascript:addFileInput();">Attach another File</a></div> <input type="submit" id="btnSubmit" /> </div> </form>
Javascript:
var upload_number = 2;function addFileInput() { try { var fileUpload = document.getElementById("attachment"); var elemSpan = nextElement(fileUpload).cloneNode(true); var elemDiv = document.getElementById("moreUploads"); var d = document.createElement("div"); var file = document.createElement("input"); file.setAttribute("type", "file"); file.setAttribute("id", "attachment" + upload_number); file.setAttribute("onchange", "validate(this)"); d.appendChild(file); d.appendChild(elemSpan); elemDiv.appendChild(d); upload_number++; } catch (err) { alert(err);}}
the validate(this) is a function that validates file types on client.When validation succeeds then the link to add more file inputs is enabled. Could someone throw somelight on this.
I'm using HttpModule to capture requests to the web server. Before processing the page I'd like to check the values contained in some keys of the Request.Form collection and according to some logic change if necessary. I'd like to do this when BeginRequest event is fired. The problem is that the Request.Form collection is readonly.
I have a GridView which works perfect when it is not empty. Now when the source is empty I want to show an empty GridView and to be able to insert rows inside.
I have this code for the page_load event:
[Code]....
but I got the following error:
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Data entered in textboxes is not getting updated in database. In debug mode I see that text1 and text2 in ItemUpdating event contain the same values as they had before calling ItemUpdating.
I'm a new user of ASP.NET MVC and I'm trying to replicate the ListView control from WebForms in an AJAX-y manner. Take the following as an example:
[Code]....
The "ItemTemplate", "EditItemTemplate", and "InsertItemTemplate" replacements are implemented as Partial Views, so the view for this page looks something like this:
[Code]....
The edit/update flow is very simple. The user clicks the "edit" button, an AJAX request is made to get the "EditItemTemplate", and the contents of that row are replaced with the "EditItemTemplate". When the user clicks "Update" in the edit row, the form is submitted via AJAX and the resulting content replaces the "EditItemTemplate".
The part I'm not sure how to deal with is the InsertItemTemplate. When the user submits the insert form, I need two partial views to be returned: one to replace the InsertItemTemplate (clear the form or show any validation errors), and one to insert into the table as a new record (ItemTemplate). I'm not sure what to do about this...the only options I've come up with are:
Make 2 Ajax requests -- one to insert the item and get the ItemTemplate for the new item and another to get a clean InsertItemTemplate Make 1 Ajax request for JSON -- render the ItemTemplate and InsertItemTemplates into strings and then put them into a JSON object that can be analyzed client-side (ex: { itemtemplate: "<tr>...</tr>", insertitemtemplate: "<tr>...</tr>" }) Make 1 Ajax request for the ItemTemplate and then manually clear the InsertItemTemplate form client-side (removing any form entries and validation elements)
None of these options really seem that great to me...especially #1 (because of a second AJAX request) and #3 (because it keeps my solution from being easily reused on other "ListView replacements" due to the need to manually clear the form). #2 is somewhat acceptable but still kind of hacky because rendering partial views to strings and then sending them in JSON isn't easy to do and ends up being a bit of a hack.
I have a listview that I automatically generated from a database table, enabling editing and inserting on the listview and the EntityDataSource that runs it.
I started customizing the listview templates so that I didn't have to see some of the fields (they're unnecessary from the standpoint of the form), and have alternately tried removing or hiding the unwanted fields. This pretty much patently results in me not being able to insert new records, although updating seems to work just fine. There are no error messages.
I then tried using InsertParameters in the datasource, but that didn't really help either.
In the codebehind I have an onInserting handler that should fill in some of the hidden/removed fields before the record goes to the database.
I've tried pretty much everything I can think of, and even my colleagues are kind of stumped. Why can't I insert records into this table/listview?
Here's the next instalment of my asp.net data access nightmare!
I've got a listview on my page, and when I run the page it correctly displays the data that it should. However, when I add data into the empty new record and hit the 'Insert' button the page posts back but the record isn't inserted. Annoyingly, I don't get any error!
The listview's datasource has an INSERT command and insert parameters specified. The button seems to be triggering the listview's insert method because the ItemInserting event fires.
With no error message to go on I'm struggling to figure out what the problem is. I have a feeling it's something to do with the makeup of the page. The listview in question is nested within an Accordion control and the listview's data source isn't set until runtime, when it's done in the ItemDataBound event of the Accordion control. As I say, though, it does RETRIEVE data correctly, it's just the inserting that's a problem.
I created a new, blank page with just this listview on it using the same code but not nesting it within any other control and hardcoding the datasource instead of setting it at runtime and that works perfectly, so I'm confident that my INSERT command, insert parameters and so forth are correct.
I've tried to get my listview to break, deliberately leaving out insert parameters and so forth just so it'll give me an error message but it never does! It's as if the insert isn't taking place at all, except that because the ItemInserting even takes place I'm assuming that it is.
Data entered in textboxes is not getting updated in database. In debug mode I see that textbox1 and textbox2 in ItemUpdating event contain the same values as they had before calling ItemUpdating.
Here's my listview control:
[Code]....
What's wrong with updating of text1.Text, text2.Text in ItemUpdating event? Should I use e.NewValues property? If so, how to use it?
My project is in ASP.net and C#.I am doing webbased desktop application.I have some 4-5 textboxes on the webform like ItemCode, ItemName Qty Rate Amt and a Button called Add on the click event of the Add button i want the data from the textboxes to be inserted or added to the ListView, user can add multiple entries to the ListView through this textboxes and then finally he will have a button called save on the click of save button.i want this LIstView data to be inserted into the SQL Table
I have an <asp:ListView> but for some reason the LayoutTemplate section does not show when the list is empty, although the <EmptyDataTemplate> section shows. The LayoutTemplate contains the headers for the table, and I want to show an empty table when there are no items in the datasource, not just the content of EmptyDataTemplate.If there is no choice I will copy the LayoutTemplate into EmptyDataTemplate.
Is it possible to show empty items in ListView in ASP.NET 4.0 ? For example, there are 2 items in the datasource, but I want to show them + 2 other empty items.
I am trying to insert manually new items in a Listview control using objects. The item seems to be inserted, but when the page is sent back to the browser, there is nothing there. Here is the code that I am using:
[Code]....
I can assign a list of object to the datasource, but when I try to input a new object to the list of items from the ListView, it doesn't work.
I have an ASP.NET MVC2 application that supports visualization plug-ins/providers. The IVisualization interface is defined in a common assembly which is referenced by both the ASP.NET MVC2 app, and any visualization providers.
In the Visualization controller, I have a method which returns all the applicable visualizations for a given set of data. In order to scan the available providers, I use the following code in the controller's ActionMethod.
var catalog = new DirectoryCatalog(HttpRuntime.BinDirectory); var container = new CompositionContainer(catalog); var visualizations = container.GetExportedValues<IVisualization>();
However, I feel like if I have the following in the controller
[ImportMany] public IEnumerable<IVisualization> Visualizations { get; set; }
then the import should happen automatically. What am I missing that prevents the automatic imports?
Also, is the code that I am currently using going to kill scaling of website?
