I have a 50 x 50 image button layout. That's 2,500 image buttons. I want to assign each imagebutton a picture depending on what is in the database. Will this be too much to do? Is there a faster way?
View 18 RepliesI am loading in my page a html code that have server an client objects. View sample:
<b>prueba imagen</b>
<img alt="hola mundo" src="_img/personalcarta/img_off.png" />
<asp:ImageButton ID="Img4_izq" class="Imagen" Width="95px" Height="95px" runat="server" ImageUrl="~/_img/personalcarta/img_off.png" OnClick="Img_Click" />
the problem is only load me the client objects. How Can I do it for load server objects since an html code?
I'm really new to MVC (just started a few weeks ago) and new to Ajax (never looked at it before today). I need some design / technical advice concerning Ajax, MVC, loading partial views, and posting / getting from a view. What I'd like to do it load a partial view that takes in a list of objects that have been queried from my db into an details-type view. The details view already has some other content that has been handeled and loaded from information pulled from my database and setup through some actions. It is strongly types to a model.
Below is the partial view I've created thus far:
[Code]....
And here's a portion of the Details page:
[Code]....
I'm not sure what to do for the Ajax.ActionLink. I'd like for a use to be able to type into the text box on it's left and hit "Add" (the Ajax link) and have the application add the content in the text box to the database. Should it be something else? An <input>? The Controller code piece is below:
[Code]....
So it should be adding the member into the repo / db and then reload the contents of the partialview. Instead, it's reloading the whole page and not just the partial view. (the url is changing from /project/details/5 to /project/membersection/).
when make buakup to my data base and open the database digram this error appear : Database diagram support objects cannot be installed because this database does not have a valid owner. To continue, first use the Files page of the Database Properties dialog box or the ALTER AUTHORIZATION statement to set the database owner to a valid login, then add the database diagram support objects.
View 1 RepliesI am just learning ASP.NET c# and trying to incorporate best practices into my applications. Everything that I read says to layer my applications into DAL, BLL, UI, etc based on separation of concerns. Instead of passing datatables around, I am thinking about using custom objects so that I am loosely coupled to my data layer and can take advantage of intellisense in VS. I assume these objects would be considered DTOs?
First, where do these objects reside in my layers? BLL, DAL, other?
Second, when populating from SQL, should I loop through a data reader to populate the list or first fill a data table, then loop through the table to populate the list? I know you should close the database connection as soon as possible, but it seems like even more overhead to populate the data table and then loop through that for the list.
Third, everything I see these days says use Linq2SQL. I am planning to learn Linq2SQL, but at this time I am working with a legacy database that doesn't have foreign keys setup and I do not have the ability to fix it atm. Also, I want to learn more about c# before I start getting into ORM solutions like nHibernate. At the same time I don't want to type out all the connection and SQL plumbing for every query. Is it ok to use the Enterprise DAAB for now?
I was put in charge of a database that has no source control, and all work was done in the database. I want to pull all the objects (stored procs, views, tables) from the database, and add to my new source control.
Is there a way to get all the objects into individual files out of a database?
Our database is SQL 2005. I have Visual Studio 2005/2008/2010 (beta 2) at my disposal.
I have created class in C# i need to use objects from this class to add them to a databse table.
the information come from textbox go into the object of the class than from this object i want to preform databse function.
As I began writing web applications with asp.net I started with small projects that used a Linq-To-SQL mapper for database access to a MSSQL Server. After gaining some expierence I switched into a classic 3 tier with Graphic Layer, Business Layer, Data Layer. The only function of the Data Layer was to provide methods insert/update/delete without any logic and logic the form of selection methods.
Over the time I realized that it would be better not to provide the database classes up to the GUI (took some time unfortunately). I switched into using Business classes in the BL that are used for all operations performed by the BL and display by the GUI in the form of getting List from the BL. A great advantage is that I can provide additional properties that are not represented by the database itself. However, I did that mapping inside the BL myself with methods that mapped the corresponding BL class to the database class.
I guess thats where O/R mapper come in handy? Until now I haven't realized their purpose, but I think I just found it. I've recently tried out using the new Entity Framework with .net framework 4, but I'm only using it like the Linq-To-SQL DataContext.
Is there a way to achieve the mapping automatically? If yes, is that something the new Entity Framework provides or do I need to look for a O/R Mapper like NHibernate?
have some Objects, lets say Employee and Role defined as below and I have defined relationships in my database that gives me a list of objects say employees and thanks to my framework each employee object also has a Role object linked via the RoleIDID, UserName, Password, Email, RoleIDRoleID, RoleNameSo in code I can do something like this
Employee emp = dataService_GetEmployeeByID(1);
string RoleName = emp.Role.RoleName;
Now here is my problemI can bind any object in a repeater and it works fine for the first level in my relationship
For instance <%# Eval("UserName") %>
But I need to be able to show the details for my child objects as well (Role) so something like this (which does not work)
<%# Eval("Role.RoleName") %>
I know how to bind a simple objects to a dropdown list. However I am having problems binding my objects which contains sub objects to the control.i.e. with simple object i just do ddl.DataValueField = "myproperty"
with my objects they contains sub objects which i want to bind. I have tried ddl.DataValueField = "sub-object.myproperty" which doesnt work.
firstly a static class only ever exists once and is not an instance. Any static members (ie static int NoOfPeople;) is stored in one place and is shared between all sessions (like the old global variables).
Now static methods is where i'm not 100% sure. If I have a static method that doesn't use any other static members could this cause inconstant results, example (this is a fairly pointless method but just a quick example of the top of my head)
[Code]....
So in this example if two sessions (or threads) were to call this at the same time - would they both get back the expected results, because the method only uses private data (a, b and totalToReturn).Im sure this sounds a little simple but I will be using static methods to build user objects and various other objects that there will have to be a 100% garentee that the objects will not get mixed up between sessions and the wrong things return to the user.
UI markup to create the table shown below, which I have mocked up quickly to visualise what I need to do. The data is in the form of custom objects; a SelectedSession object which has a List (Of Students) sorted by AcademicYear, TeachingSet, then name.
So the question is how do I create that table from my custom object?
<table class="style1">
<tr class="academicYear">
<td colspan="3">
[Code]....
I'm working on a project in which we have a database, data layer (entity framework), business layer and web/UI layer.I want to use ASP.NET Dynamic Data for the web layer, but don't want it to access the data layer or database, as I want it to be purely running off business logic, and not directly accessing the data.However, it appears that Dynamic Data only allows Linq-to-SQL or entity framework data sources to be used.Has anyone used it with business-layer objects instead?
View 1 RepliesLets say I am doing a shoping cart. I authenticate the user with a session variable.For example:
If(Request.IsAuthenticated)
// Here I want to add to the shoping cart.
// Can I do the following
Session["Cart"] = "Washing Machine";
Now will this Session["Cart"] value which is washing machine here be unique to diff customers?
I hosted my application in production. Within 5 to 6 hours the application pool spikes and uses more memory?
What application objects or system objects are stored in the application pool?
I have saved an image on the database and want to display it to the user.
The table the image is stored in looks like this:
Images
------
ImageData Byte
ImageName String
ContentType String
What should I do to load and show it in my View?
I want to build a menu something like shown in the below url.
I need to load the menu items from the DataBase....
Dynamically i want to change it.... Any possiblities...?
[URL]
or any other way to have an accordionmenu from the database...
I am writing an Administration Module which it lets the administrator to Add/Delete the items in TreeView. I know that I have to store the Items in SQL Database but I dont know how to retrieve them and bind to the TreeView and then Link them to related pages.
I have found some Tutorials but I did not understand completly. I've seen that they used to have the
www.testwebsite.com/PageID=1?
I have a database table a field that is the 5 character cultureinfo code. I would like to create a dropdown control that has its value set from the database field (the database table contains only a list of those languages supported by the site) but displays the cultureinfo name.
View 1 RepliesIs it possible to load routes from the database with ASP.NET ?
For each r as SomeRouteObject in RouteDataTable
routes.MapRoute( _
r.Name, _
r.RouteUri, _
r.RouteValues, _ //??
r.Constraints _ //??
)
Next
How should I store the routevalues / constraints? I understand that there are several 'default' routevalues like .Controller and .Action, however I also need entirely custom ones like .Id or .Page...
I am developing a small web site.web site has some links on the right side of the page.
I'd like when user clicks every link , related data load in the center or left side of the page.
how can i do this?
I use MS-sql server. how can i use DynamicpopulateExtender control to do this? is there other way to do that?
i have a web application with sql server 2008 i wanna know if its possible to load the data automatically after its been inserted to DB..i have a alerts table which store message and user name to which the alert is to be send i wanna display the alert msg to user after it has been inserted...
View 3 RepliesLike this pic : When i'm add new or delete Item, I want it's auto reload quantyti(The Quantyti I'm count from database). How to do that?
View 4 RepliesWhen I load my page I populate my repeater with the following code.
Dim conn As Data.SqlClient.SqlConnection
Dim Comm As Data.SqlClient.SqlCommand
Dim reader As Data.SqlClient.SqlDataReader
[code]...
I got 2 checkboxlists , each checkbox has 6 checkboxes inside it (below is my database)
checkboxlist1 : id , rowa
checkboxlist2:id , rowb
id : int
rowa : bit
rowb : bit
When I click one checkbox, the value is saved to my database as TRUE ,But somehow, when I load the page, it does not show the checked state (checked/unchecked). Here is my code . i think my problem is , how to load checked value (bit) of checkboxlist ?
Here is my code:
<asp:Panel ID="Panel1" runat="server">
<asp:CheckBoxList ID="CheckBoxList1" runat="server" style="margin-left: 258px">
<asp:ListItem Text="1"></asp:ListItem>
<asp:ListItem Text="2"></asp:ListItem>
<asp:ListItem Text="3"></asp:ListItem>
[Code] .....