C# - Storing Complex Data In A List?
Sep 27, 2010I'm working with a product called SiteFinity.I have a class which looks like so:
public class Categories
{
public IContent oContent {get; set;}
[code]...
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before explaining you the actuall problem I would explain you the Model The model is a pretty simple , it for few columns which are bool , and a lot of them which are varchar(MAX) The View is built the following way
the bool parts of curse got a check box but the varchar parts are the complicated ones In my web form page i got the following code for each varchar property in my database
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View 7 RepliesHow To Manage Complex Data Entry Validation
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Here is an example of a typical problem:
The design requires a grid or grid-like result set. This result set is pulled from a database, however, there are additional controls on each row that are not data bound, but their contents are used to insert data into other records.
A good example of this would be displaying a list of products, then adding selected products to a shopping cart based on values entered into quantity fields, and options selected per product. Throw into the mix that you have to allow multiple lines to be added to the cart at the same time, and it starts to get more complex.
Let's add to that mix that you can't select certain products together (mutually exclusive), that you can only select a certain number of one product, but not another, that prices may change while the user is selecting their items, that you you get an overall discount per item based on quantity purchased (both per item and overall order), that you are using a line of credit and cannot exceed the line of credit, nor can you buy more of a given item than an arbitrary amount set in your account or in the product by your account representitive (think certain over the counter medications that the government limits how many you can buy), etc.. etc.. etc..
What starts out as a simple grid with an add to cart becomes a hopeless mess of business logic, which then of course requires validation and notification to the user of various errors in their choices.
How does one deal with very complex data entry schemes in asp.net? How do you even begin to design a piece of software to do all this?
C# - How To Bind A DataTable With Complex Data Objects To A GridView
Jan 31, 2011My DataTable is programatically generated, and contains objects of type JobInstance in the cells.
[Code]....
When I bind this DataTable to an ASP GridView, it only displays the first column. But if I remove the "typeof(Job)" when creating the column (the line with // !!!), the GridView displays all the columns by showing the result of JobInstance.ToString() in the cells. However, I have no access to the underlying JobInstance object, only the string values that are being displayed.
I need access to the JobInstance object when displaying the GridView (for example in the OnRowDataBound), because I want to access the fields inside JobInstance for each cell to determine formatting options, and add other links in each cell.
Passing Complex JSON Data JQuery To Action?
Dec 1, 2010I have 2 classes that are used to mirror the data from an ajax call. One (Customer) contains a property which is name, and the other is an array of Products.
Public Class Customer
Private _Name as String
Private _Products as Product()
Public Property Name() As String
[Code].....
Silverlight Or Jquery Ajax For Complex Data Form?
Oct 7, 2010So part of my web app centers around this very important form which is used to create a form. Its like google docs form. The user keys in a type (checkbox, textfield, numericfield) and a label and slaps it into the system, and it generates a form somewhere.
Its a little more complex than google forms, the field types are complex and theres a lot more to that form (It happens to be a form generator for a finance plan)
The app is asp.net, I was thinking of using jquery and jquery's own ajax methods to post the data, but I think it would just turn into a very hairy situation, I then thought silverlight, but Ive never done silverlight before but I am an experienced .net guy.
So what do you guys think, will silverlight be too tough for a first timer for this kinda thing? Or should I stick to jquery. Plus points for silverlight is its an inhouse lan app and this particular page will be used by people with very high bandwidth.
Also I'm on .net 4 btw.
SQL Reporting :: Mapping ObjectDataSource With Complex Data To ReportViewer And GridView?
Apr 1, 2010I have a data object where one of the properties is a collection of another data object. I never really figured out how to map this to a GridView, but I came up with a workaround. Now I am stuck and cannot figure out any way to do this in a ReportViewer.
Here is how I solved the GridView issue:
Say we have these objects:
public class BoysWithToys : List<BoyWithToy>
{
}
public class BoyWithToy
{
string FirstName { get; set; }
string LastName { get; set; }
int BoyNumber { get; set; }
List<Toy> FavoriteToys { get; set; }
}
public class Toy
{
int BoyNumber { get; set; }
string Toy { get; set; }
}
What I wanted to do was to map BoysWithToys to the GridView and present one GridView row per BoyWithToy record. Where there was more than one FavoriteToys record I wanted to list them in a bulleted list in the FavoriteToys column. I accomplished this by calling RowDataBound() for the GridView, casting the e.Row.DataItem to BoyWithToy, then looping through all of the FavoriteToys and adding each Toy to a bulleted list, then setting the column's text to that list.
I have no idea how to accomplish anything similar in ReportViewer. If I simply drag the BoysWithToys DataSource to the designer and run it, the FavoriteToys column shows '#Error'.
DataSource Controls :: Binding A Complex Query To A Data Control?
Apr 21, 2010I'm trying to implement a recipe search page that allows users to specify search criteria by selecting checkboxes that match desired recipe attributes. All the data is stored in a database uing tables with 1 - many relationships. Each recipe can have multiple attributes from any of 5 attribute tables. I want to find all the recipes that match the user-selected criteria and display them in a grid. For example, the user may want a breakfast (attribute 1) recipe that is made with fruit and milk (attributes 2 and 3), is low-fat and high fiber (attributes 4 and 5), and takes less than 15 minutes to prepare (attribute 6). The query for this example might look something like:
SELECT distinct recipes.name, recipes.difficulty, recipes.preptime, recipes.cooktime
FROM recipes, recipeMeals, recipeDishes, recipeFoodGrps, recipeNutrients, recipeFixTimes
WHERE recipes.id = recipeMeals.recipeId and recipes.id = recipeDishes.recipeId and recipes.id = recipeFoodGrps.recipeId and recipes.id = recipeNutrients.recipeId and recipes.id = recipeFixTimes.recipeId and recipeMeals.mealId in (1) and
recipeDishes.dishId in (5) and recipeFoodGrps.fdGrpId in (1, 6) and recipeNutrients.nutrAttsId in (2, 3) and recipeFixTimes.fixTimeId in (1)
I' can generate the SQL but can't figure out how to bind it to a grid control. No could I see how to get any of the data controls to build the query for me. Is there a way to say "execute this query and display the results in a GridView"?
Forms Data Controls :: Binding Complex Property To Gridview Columns?
Oct 15, 2010We know that using something like Bind("CustomerName") can be used in the Text property of a label control inside a gridview, where CustomerName is a property of the object whose collection is bound to the gridview. If that property is of a complex type (object of another class), how do we use a property of that inline object as a binding for the gridview column?
View 3 RepliesForms Data Controls :: Retrieving Data From A Web Serivce And Storing The Data Into A Dataset?
Aug 27, 2010I am retrieving data from a web serivce and storing the data into a dataset.
I'm then populating a gridview with the data from the dataset.
Before each row of data is displayed on the website, I need to check and make sure the user has proper permissions to view that data.
Can this be done with a gridview(or any other .NET data control)?
Or would I need to loop through the data manually, and then write each row out manually?
C# - Storing JSON Data In Db?
Jan 3, 2011I'm trying to store data from fb wall into database.
My *.cs code
public ActionResult GetWall()
{
JSONObject wallData = helper.Get("/me/feed");
if (wallData != null)
{
var data = wallData.Dictionary["data"];
List<JSONObject> wallPosts = data.Array.ToList<JSONObject>();
ViewData["Wall"] = wallPosts;
}
return View("Index");
}
Which gets posts from fb wall. And then I have an *.aspx file, which "breaks" my wallposts into pieces (objects) or whatever you like to call them.
foreach (Facebook.JSONObject wallItem in wallPosts)
{
string wallItemType = wallItem.Dictionary["type"].String;
//AND SO ON...
What i'm trying to say is that I can access to elements inside fb JSON.
Is there a way i can access to the JSON elements inside *.cs file. Or is there a way I can store elements inside the *.aspx file to db?
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View 3 RepliesStoring Data In A Generic Field?
Aug 24, 2010I'm having a couple basic generics problems. Basically, I'm trying to identify a piece of content by two indexes.
1) I need to store the content in the class, so I need to create a class variable, classTableCellContent, to store it in. Therefore I need to create one, requiring me to constrain the generic type "where ContentType : new()". However, when I attempt to consume this type with a string, e.g. TableCell<string>, it throws a compiler error "The type 'string' must have a public parameterless constructor in order to use it as a parameter blahblahblah..."
2) I need to accept input, so I have an add function. However, when I try to indicate that the third parameter is the same data type, i.e. ContentType, the compiler seems to believe that I'm creating a "new" data type with a poorly chosen name that hides the original data type declared in the class declaration. I'm sure this must be something stupid I'm missing. All I want to do is accept an input variable of the generic type in a function and store it in the class for later use.
Here's the code. I've even highlighted the two lines that seem to be throwing the errors.
Code:
[code]....
Storing Contextual Data During A Request?
Oct 2, 2010I am writing an ASP.NET application that initializes some contextual data based on stuff sent through the Request object. How should I be storing this so that it is only visible to objects dealing with the request?
Essentially I have an HttpModule that looks at the request, and does something based on the incoming data:
public void OnBeginRequest(object sender, EventArgs e){
if((sender as HttpApplication).Request.Url.Host == "something"){
// Store some extra information here
}
}
And then I want to retrieve the data later on in the pipeline, in a view
<%: somehowGetRequestSpecificData.MyProperty %>
How and where should I be storing that stuff?
Storing Configuration Data In .NET Than The Web/machine Config?
Jun 24, 2010We have a large multi tenanted website which requires thousands of lines of web.config to support it. As the system grows we are finding it more and more difficult to manage this configuration file.The system currently in place uses XSLT to generate the config but this solution seems to involve a lot of duplicated code (we have 12 deployment environments).
I am leaning towards putting the configuration data in the db so we can be sure that it's deployed with the application and that our release notes don't require the IT guys messing around with XML
What are better solutions we could use?
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Mar 25, 2011I have got an ASP.Net website, where the data is brought in from ISeries.The data connection to ISeries is quite slow and the speed is quite important for this website. Because of the slow speed of data retrieval from ISeries, I want to make as less database connections as possible.So, I was thinking about storing tables from the database which rarely changes as static properties in my website. Whenevera user logs in I submit a thread which refreshes the data in the static property. Is this approach correct? If not, what are the problems with this approach and what are the possible alternatives?
Example:-
For list of ports, I submit the below thread when user logs on:-
[Code]....
In class Ports, there are 2 methods -
one for populating the static property PortList, and the other checks if the thread is alive and waits for the thread to complete and retrieve the list of ports, once it is complete. The second method is the one which I use in my application whenever I need the list of ports (populating a dropdown, etc).
[Code]....