MVC :: Initializing Items For MultiSelectList?
Jan 7, 2011
I have model where exist code for init items for MultiSelectList.This MultiSelectList contain a lot of items and this items reading from external services or database this is doesn't matter. Lets imagine that this reading is slow in any case.
[Code]....
But In Controller when user made Post Back and I also reload this items because InvoiceViewModel not contain items in collection what bind to MultiSelectList he contain only selected items.I have idea save this list in global object.How and where I can store global object in MVC ?
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Similar Messages:
Jan 11, 2011
I'm working with a simple MultiSelectList on C#.
I just want to populate this MultiSelectList with some string values (not a pair such as <"Key", "Value"> just <"Value">) and set some selected items.
Here's my code:
IEnumerable<string> ubicaciones = new string[] { "NEGOCIOS", "TERRITORIOS",
"LOCALIDADES" };
IEnumerable<string> ubicacionesSelected = Ubicaciones.Split(',');
UbicacionesPermitidas = new MultiSelectList(ubicaciones, ubicacionesSelected);
IEnumerable<string> transacciones = new string[] { "CARGA: ACCESORIOS",
"CARGA: EQUIPOS", "ASIGNACIONES", "DESINCORPORACIONES",
"PRÉSTAMOS", "TRASLADOS", "SALIDAS" };
IEnumerable<string> transaccionesSelected = Transacciones.Split(',');
TransaccionesPermitidas = new MultiSelectList(transacciones,
transaccionesSelected);
However, is not working... (it shows all the values on the MultiSelectList but it doesn't show any item selected) what am I missing
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May 5, 2010
I need to Initialize a value in a Javascript by using a c# literal that makes reference to a Session Variable. I am using the following code
<script type="text/javascript" language="javascript" >
var myIndex = <%= !((Session["myIndex"]).Equals(null)||(Session["myIndex"]).Equals("")) ? Session["backgroundIndex"] : "1" %>;
However the code above is giving me a classic Object reference not set to an instance of an object. error. Why? Shouldn't (Session["myIndex"]).Equals(null) capture this particular error?
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Mar 9, 2010
public class Template
public string Title {get;set;}
public string Body {get;set;}
xml that is stored in /files/test.xml in a web application (at the root):
[code]...
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Mar 31, 2010
In VB during page_load I'm trying to initialize:
<body id="Body" class=<%=currentPage%> runat="server" >
...but unsuccessful. I keep getting an "unhandled exception" before the page is displayed. How do I properly do this before the <body> element is accessed?
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Apr 2, 2010
I have a C#/ASP.NET .aspx page that declares two controls that each represents the content of one tab. I want a query string argument (e.g., ?tab=1) to determine which of the two controls is activated. My problem is, they both go through the initialization events and populate their child controls, wasting CPU resources and slowing the response time. Is it possible to deactivate them somehow so they don't go through any initialization?
My .aspx page looks like this:
<% if (TabId == 0)
{ %>
<my:usercontroltabone id="ctrl1" runat="server" />
<% }
else if (TabId == 1)
{ %>
<my:usercontroltabtwo id="ctrl2" runat="server" />
<% } %>
I assumed the that <%'s would have meant the control wouldn't actually be declared and so wouldn't initialize, but that isn't so...
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Dec 14, 2010
The First - LblTextBox:
A label and textbox that have a LabelText field that can be set to change the label text
The Second - LoginCtl:
A login control that has two instances of LblTextBox for user name, password and a submit button
I want to control the tag rendering of these controls for formatting so I am not overriding CreateChildControls() to get the job done.
My issue is that the controls are rendered but none of the OnInit() code in either controls takes hold (blank labels, css styles not applied, etc..).
[Code]....
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Jun 30, 2010
Initially before page load I declared list string variable
List<string> Emails = new List<string>();
Then I am adding value in for each as
Emails.Add(Convert.ToString(item["E-mail Address"]));
I checked value are ading properly. Then on btn_click event I am retrieving value as
foreach (string emailid in Emails
{
Response.Write(emailid .ToString());
}
Nothing is displaying, it seems on form submit list string is initializing.
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Jan 21, 2010
Problem Description: A person has to enter all his details and take a photo(While Taking his Snap in our website there will be a Image Component and we have to Initilize the Client System(Any Company Webcam)Webcam and below Image Component there will be a button(Take Snap) When he clicks on it , it should take his snap store it. After He fills all his details when he clicks on Save button, all the details along with that image should be Uploaded to the server.
1) How to Check Whether the Client has Installed any Webcam or Not First.
2) If the Client has Installed any Webcam then Initialize that Webcam When he clicks on Take Picture.
3) Stream that Video that is coming from that Webcam Inside our Image Control in Website.
4) After He Clicks on Save Image button that streaming should stop and still image should be saved.
5) Accessing that Image(Later Converting it to Byte Stream) and uploading Image along with his data to Sql Server.
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Jul 16, 2010
I'm trying to create the edit form for book (with id 1), I want the selection list to select the existing author which retrieved from database. That book with id 1 has an author with id 1, but the HTML does not show selected author with id 1 for that book.
I feel like there is something wrong with the argument ViewData["SelectedAuthors"] as IEnumerable at MultiSelectList function
at Book.ascx source file
Another problem is, how can I use MultiSelectList to combine both "first_name" and "last_name" for text display ? I can only select "first_name"
StoreManagerViewModel.cs
[Code]....
StoreManagerController.cs
[Code]....
Book.ascx (partial view) for the 'edit' method of StoreManagerController
[Code]....
HTML result for the Book.ascx partial view
[Code]....
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May 7, 2015
below is the code I have but I want to change the ddl.Deal(dropdownlist) to cbl.Deal(checkboxlist).. How can I loop throught each items if checked. and if all items are checked. to filter my data and show in gridview..
protected void btn_Click(object sender, EventArgs e)
{
myAPI.myWeb myAPI = new myAPI.myWeb();
myAPI.SearchParameters sSearchParameters = new myAPI.SearchParameters();
[Code].....
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Aug 25, 2010
I have a few tables, Listings, ListingImages and a few others related to Listings. ListingImages is related to Listings so that you can have many ListingImages per Listing.
When I query this table I do;
[code].....
Now this is fine. However, I now want to sort the ListingImages independently within each Listing (by an ImageOrder column I have in that table).
How can I do this and pass all my Includes(...). Would it be bad form to sort the ListingImages within the View as this solution seems to work?
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Sep 16, 2010
I am using Microsoft Visual Studio 2008 Professional Edition on Windows Vista Home Basic SP2 and when I am editing Visual Basic and want to add an item to the toolbox I click on Choose Items... and from that point I can't find important controls (items) like Windows Media Player or Adobe PDF Viewer. I have tried to reinstall and reset the toolbox and program. I can't find this problem anywhere in the web
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Mar 5, 2010
I have 4 Checkboxlists, if i check 1st item of checkboxlist1 -- > populate items in checkboxlist2 if i check 2nd item in checkboxlist1 -- >populate items in checkboxlist2 with last selection as well as 1st checkboxlist items. So I need to Append items in Checkboxlist with existing items and also with previously selected Checkox. Is it any way except DataTable ?
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May 22, 2010
[Code]......
It always displays ONLY 10 items although there are 30 items in the datatable. If i use GridView ALL the 30 items are displayed just fine.
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Jul 23, 2010
So I have a ListView (assignmentsListView) in an UpdatePanel, being filtered by a DropDownList in the same UpdatePanel. The DropDownList has a list of persons in it and uses autopostback, and the ListView shows the tasks those persons are assigned to.
I am trying to use code similar to this:
[code]....
When I first load the page, the DropDownList shows the first person in the list, and the ListView correctly shows that persons tasks.
If I then select a person who I know has zero tasks, I get an error at the RegisterPostBackControl() method, saying the passed-in control cannot be null.
When debugging, at the RegisterPostBackControl method, it shows that the ListView Items collection has >0 elements in it (the number of elements matches the person selected before the current person).
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Oct 21, 2010
List<user> Collection1 =new List<user>
List<user> Collection2 =new List<user>
I have to get all items common to both the collection using linq .Even though the object user has a lot of properties I just want to compare FirstName and LastName how can i get the items not in Collection1 but not in Collection2 using the same comparison rule
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Jul 29, 2010
I have this code in my view..
[Code]....
Can I write any method to add Category and SubCategory dynamically? using javascript or jquery?
that is I need to take the textfrom textbox I need to add to the category or subcategory?
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May 3, 2010
how to get the items in listbox one by one
e.g : in my listbox i have items (roll no's)
s1
s2
s3
s4
s5
etc...
how to get the items on by one
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Mar 13, 2011
I was wondering if there is a way to place items on yoursite on top of each other, so when visible, they are not scattered thoughout the page.
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Feb 23, 2011
I am trying to get a simple multi-page program to run correctly. I have everything set up, except for the "remove" function. When I try to remove an item from the list box nothing happens. Insted of trying to explain it I will show you the code...
Index
Code:
[code]....
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Mar 22, 2010
I have a drop down list as follows:
[Code]....
[Code]....
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Sep 15, 2010
How to get the count of items from 2 dates, which has been modified in last 30 days.
[Code]....
How to get the count of items, which have been modified in last 30 days.
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Mar 26, 2010
I seem to be having problems trying to add an item to a dropdownlist that has a defined datasource:
[Code]....
but, the item never appears in the dropdownlist, regardless of how I try to modify the .add code....
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Mar 14, 2011
I have an asp.net web page created with web forms. It has a number of gridviews on it which are populated from a database on a button click.
I am looking to print a version of this page on a different button click. I'm looking to customize the printed page, with some text that is specified, then the gridview contents (user friendly version), then some more text etc
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