Traverse A List And Retrieve A Specified Value From List<> In .net/c#
Mar 29, 2011
I have a list which is defined as List<SoftwareTitles> softwareTitlesList = new List<SoftwareTitles>();
and the SoftwareTitles is a class which is defines as follows:
public class SoftwareTitles
{
string softwareTitle;
string invoiceNumber;[code]....
And now I'm adding the values from the sql server database to the list defines as follows:
public List<SoftwareTitles> SoftwareListRetrieve()
{
ConnectionToSql con1 = new ConnectionToSql();
string connectionString = con1.ConnectionStringMethod();[code]....
I want to find out the software title for every occurence of invoice number by looping through List<>. And I don't know how ? I have tried to loop through the List<> by the following code. I wanted to use something like contains i.e., softwareTitlesList[i].contains but seems like there is no such property or method
I have two tables related to a number (ie, persons with Firefox), I should retrieve data from a View where he imposed the following code:
[Code]....
When I go to send the following to view controller via Post did not recover the data, the controller parameter dell'actin as I pass him the Person object p.Qualcuno potrebe me explain why I get the results and those of the Person objectcomponents, I do not return?
I'm new with the MVC framework and I was wondering what you think is the ideal way to retrieve data and list it on a page. Specifically, I'm referring to data used in report type pages, not lists of movies, books, or other clear 'objects'.
Most online samples seem to suggest using ADO.net Entity Data Models & LINQ which are automatically built by the wizard using the DB schema - and that seems great for things like movies/books, but doesn't seem so intuitively 'correct' for random data needed for a report.
Update:To be more specific, I basically need to take a set of rows from a Sql server view and display them on a page. Some of it just in a list, and some in graphs (planning to use the .net charting control). I realize what I'm doing is very simple, I'm just not sure what the best way of doing it using the MVC framework is. Hope that clears it up a bit...
I have some labels on my Page (e.g. Label1...Label100).
I don't want to loop through all Labels to check if Text property is = "" (or string.Empty, whatever), so this's my question - is it possible to use LINQ or Lambda Expression to get all "empty" labels ?
Some ids are pulled out from the XML field of a certain User Profile . Those ids have their text values stored in a SQL table.
What is the best way to map that xml list to the SQL table in order to populate a dropdown list which contains ids from the XML list and text values from the SQL table?
How can i generate dropdown lists based on what has been selected in the checckbox list. Below is an example of what i need. if the user selects the options day, lotID and waferID, then 3 cascading dropdown lists should be displayed. And then a gridview displays data based on what has been chosen in the dropdown lists.
Day LotID SlotID WaferID VendorID ToolID LocationDetected ProcessStep Stage Precipe WaferStartMaterial WaferStartVendor WaferStartLot WaferDiameterCOA WaferMapTitle BreakPoint BreakpointSide BreakpointMeasurement
I have drop down list box that I would like to show two columns, is this possible? Or can it be done with a list box?The query correctly retrieves all of the table data to be displayed, one colum is an abbreviation, the other a bit longer description.
Clicking the label of a drop down list, re-sets the selected value to the first item in the list. This has a history of causing data entry problems when users accidently click on the label.
In the below example ddlContactType has a selected value as 'PRIMARY' and whenever i click on the lblContactType Text, the dropdown box Selected value is changing to "Select One" Text.
How to prevent this one. It should be on PRIMARY Only.
I have a databound dropdownlist and have a problem with the default value it selects.When I attempt to edit a record the dropdownlist shows the first value in the list rather than the current value. I want the dropdown list to display the current value.
I'm sure this is very simple but I'm very new to ASP.NET.
I'm trying to progam a strongly typed "Create" view using MVC 3 and razor. I want the user to be able to select a customer from a dropdown list (I populated this from my database using ViewBag in the controller). When the user has selected a customer I want a separate dropdown list to generate a list of dogs belonging to that customer related by the customerID in the database. The create button on the form will then take both of these values along with the the other fields and save it to the database.
I have a requirement in my application that, while saving the application, need to get all the value from drop down list and pass it to the view model. But application should not allow the user to select more than one item from drop down list manually, ie, only one value at a time. My view model is like ...
public class ListManagement { public IEnumerable<selectListItem> InactiveProduct { get; set; } public string[] InactiveProductSelected { get; set; } public IEnumerable<selectListItem> ActiveProduct { get; set; } }
Now I want to attach to the click-event of every single li-element, so that if the user clicks on a div-element, detailed product-informationen should be loaded asynchronously into a details-pane. I know how I can use jQuery to invoke an action-method ajax-style and also how to display the json-result which contains the product-details, BUT I have no idea, how I could attach the onclick-event to every single div, so that I can use the productId to load the details.
How would I create a list then on click add data to the list which is then stored into a session variable, then on another page retrieve the variable and output them? Currently I have:
Page Load:
List <myClass> listName=new List<myClass>
OnClick:
listName.add(3); listName.add(4);
Session["IDs"]=listName; Second Page
I need to get the whole list and add output the list so I can output (hopefully) the '3' and '4'.
I have a Cascading drop down list that is working fine to load the correct lists however I would like to have the last one initiate a query and display a datagrid on the same page containing the results of the query. Without Ajax involved this seems rather easy by using autopostback on the drop downs. If I could do it through Ajax that would be great but I can settle with having the page to reload to display the data. Right now I'm not sure how to do either. I enabled autopostback on the last drop down and wrote a method for it but I get an error at runtime saying:
I have string which came from the database,now i want to compare each charater of the string with the radiobuttonlist value and check box list value and select both radiobutton list and checkboxlist.
Here i write down some code but its just select 2 item of the each radiobuttonlist and checked all checkboxlist.
