Data Controls :: Populate IList Object From Database In C#
May 4, 2012how to populate a ilist object with data frm a sql table in code behind
View 1 Replieshow to populate a ilist object with data frm a sql table in code behind
View 1 RepliesI have a table say, Student.
I have a class 'Student'.
I want to populate IList<Student> with objects of Student class from Student table in database.
Is it possible to implement this?
If yes then how to implement this.
Okay, so I have a Generic IList of custom objects that I want to use as a datasource for a repeater.
[Code]....
In the WebForm inside the repeater, I place this code:
[Code]....
when I try to run it, I get the error "Unable to cast object of type 'System.Collections.Generic.List`1[MyCustomObject]' to type'MyCustomObject'. ". Which makes sense, really.
What's the best way round this? Is there any way I can get the direct cast working? I'm loath to have to create a custom list item that implements IBinding or something and bind that directly, as that'll mean a lot of legacy changes which may create further bugs. Or is there a better way?
How do I accept an 'object' as a Datasource (IEnumerable or IList) and loop through the keys/values? I want to be able to pass anything that implements either IEnumerable or IList.
This same functionality exists on all of the .Net DataBound controls and I'm trying to figure out how it's done.
[Code]....
I want to do paging the API Membership without using the datacontrols, but I get this error "Unable to cast object of type '<TakeIterator>d__3a`1[System.Char]' to type 'System.Collections.IList'." when I do this,
[code]....
I am trying to bind the panel bar with the IList. I have the follwing code in my class libarry
[Code]....
I need to bind the panel bar with getmenuItems. In the above code DataReviw, Score Rep, Something else, section 2 and sample are the parent node of the panel bar and Test1,
/rRepScore/Index,
/something/something,
"Test3",
"/repScoring/Selectreps"
are the childeren of the panel bar and they are the link to another web page.
New to asp. I'm trying to figure out how to populate a radiobuttonlist with selections from a table in a database. I honestly have absolutely no idea how to do. There will be different products in the database that need to be pulled to different radiobutton lists.
View 6 RepliesUsing Checkbox I m inserting gridview data into database. But I couldn't fill checkbox checked from database.
View 1 Replies Ive been strugglng with this one problem for a while now. I have an application as: SelectCommand="SELECT [CategoryID], [Name], [UserId] FROM [Categories] WHERE ([UserId] = @UserId) ORDER BY [Name]">
<SelectParameters>
<asp:QueryStringParameter Name="CategoryID" QueryStringField="ID" />
</SelectParameters> [code]....
the dropdown list control will populate values from the database but when i live those 2, it won't populate any value from the database. When i remove only the
<asp:QueryStringParameter Name="CategoryID" QueryStringField="ID" />
</SelectParameters>
and live ([UserId] = @UserId), i get the error : Must declare the scalar variable "@UserId".
I have a gridview with a RadioButtonList I need to populate. It is as such"
[code]....
I have 5 radiobutton list in the form . i want to populate from it from the database.I have one table which has 5 Coloumn ( productname,group,id ,value,decscription) .Accrodindg to grouto i want to popluate all radiobutton list which display the product name.after populate all radiobutton list user select whatever list items i want to save using session in to new table.and which r the columns i make it for new table so i can save it user selction in databse..
my table veiw is like this
productname group id value decription
abcd g1 1 1 XXXX
bcdef g1 2 2 XXXXX
efgh g1 3 3 XXXXX
ghi g2 4 1 XXXX
dgjks g2 5 2 XXXX
ghidsg g3 6 1 XXXX
ghi g3 7 2 XXXX
fsdfghi g4 8 1 XXXX
so on upto g5 ..... my first raiobutton just populate group= g1 productname only for second raidobutton list just populate group=g2 productname only soon.
I need to display the data as pie chart,bar charts(2D,3D) here data is JSON data. any nice articles using jquery or java script free plugins ?
View 1 Replies I am somewhat new at C# so forgive me if I have something listed wrong. This is what I got:
I am working on a school project designing a car dealership website. I have an inventory list that allows you to edit any car in the inventory. When you click on the edit button it takes you to the edit page and populates the controls with selections from the database. I have an options table that stores the VehicleID and Option ID. When the page loads it fills all the DropDownLists for the vehicle info with the data and selects the correct item according to the database selection but the CheckBoxList does not select the items that are on the Options table. I checked the query in SSMS and it returns the correct data. I have stepped through the method and it works till the "(currentCheckBox != null) if statement. It doesn't throw any errors but it also doesn't select items when the page renders.
I thought it might have been something with the page life cycle since databound controls don't render until the end but the DropDown's I have fill and selects the correct item according to the database.
I need to create a gridview to show in each row, some columns from the SQL Database, and in other columns I want to have text fields, buttons and DropDownLists!
This GridView is to display the users of the web application.
First columns are name, email, and other stuff that can be easly queried to the SQL database.
Then, I need to have a column with one text field, and some buttons, in the text field the AdminUser should be able to insert some text and then click in a button to change the email/pass from the user represented in that line.
The other field I need, is a DropDownList that shows by default the Role of the user of the row, but we can choose another role and apply it, with a button in the same cell!
If I create a code-Behind query and populate the GridView, I don't know how to insert textbox's, button's, DropDownList's
If I create the GridView with the wizard, I can had TemplateFields, but I don't know how to associate the query with the BoundFiels where should be the name/email of the users.
Other problem, is that, even If I get to construct my GridView with sucess, How can I reference the row? So I can apply the changes?
product id,product name,price resp as label and textbox.
actually product details fetching from database based on product id .
my requirement is based on product id how to fetch data and fiill the details in textboxes . fetching one product at a time.
I've got a web application I've built that makes various database calls to render some charts and datagrids for MI reporting purposes. I've got my database calls initiating on Page_Load within the .vb for each page. The site impersonates identity for database access. Page_Load returns a datatable and populates an HTML table inside an ASP:Repeater. Still with me? Well, everything works fine here. My problem is within the Default.aspx.vb Page_Load sub.
The Page_Load sub (in Default.aspx.vb) returns a datatable the same way as the others but instead of rendering the results to a repeater, the datatable is saved as Session("dt"). The saved session "dt" is then used to populate a couple of charts I've got on the home page(default.aspx):
<script
runat="server">
Public
Function buildXML(ByVal Product
As
String,
ByVal reportNameStr
As
String)
As
String
Dim clDB
As
New clDB
Dim clSB...........................
I'm currently developing an ASP.net application w/ VB as the code behind. I have a page that shows all the user name currently assigned to the system. The problem now is that the page does not communicate directly to the database. Instead, I use HTTPrequest to get all the user names from a different sever. Now I want to populate the listview control w/ the response that I got (and not directly from the database).
View 3 RepliesI would like the user to select an item from a drop down list. Next to the drop down is a textbox or label control. From the ddl selection I would like to populate the textbox or label from a database with a corresponding field from the database the dropdownlist was populated from. On selectindexchange event I can populate the textbox with the Unique id from the value, but I need to input a different field into the textbox. Can I use some sort of variable to assign the Textbox.Text = ?
View 6 RepliesHow to populate or bind TreeView from one table use SQLSERVER database in ASP.NET & C# table include
ID,Name,ParentID
I am using Asp.Net web-application. How exactly to create UL menu with ListView control such as :
<ul> <li> <a href="#">Item #1</a> <ul> <li> <a href="#">SubItem #1</a> </li> </ul> </li></ul>
MenuId SubMenuId MenuName MenuUrl
1 0 Home Home.aspx
2 0 Administration Administration.aspx
3 2 Add User AddUser.aspx
4 2 Add Organizaion Add Organizaion.aspx
5 2 Add Program AddProgram.aspx
6 2 Add Activity AddActivity.aspx
7 0 Search Search.aspx
8 0 Utilities Utilities.aspx
9 0 ContactUs Contact.aspx
I have a one combobox and 3 textboxes and one sql datasource.
When I select the name in the textbox I want to show the values in the relevant textboxes. For instance, in the combobox when i select the Name of the employee the relevant information about this employee is shown in the 3 textboxes, i.e. age, cell #, extension.
I am refering below url:
[URL]
how to select items in dropdownlist if i bind it from database.
Once i select some items and save in database , after that i want items selected when page reloads that items bind in dropdown.
I'm new to ASP so this may seem so simple but I cannot work it out.
I am trying to create a script that changes its output based on a range of values. Here is what I mean:
I have a MSSQL database with an ASP scripted website that reads it and displays the data in a table. One of the columns in the database is a percentage and I want that column in the web page to have a background colour based on the figure outputted.
So each cell may be a different colour. If the number is between 0 and 30 then red background, 31 to 70 orange etc.
At the moment I have the database output script looking like this:
[Code]....
How can I implement what I have outlined above?
I want to display images, which i stored in the MSSQL 2008 with the type of varbinary, in a gridview.
I am using N-Tier to support my web application, i can get the image's value which is in binary type, but i do not know how to display it via a gridview.
I have a simple ASP.NET assignment to complete. We are supposed to create a simple database with one table. That table should contain records that contain a question and 3 possible choices. We need to populate a DDL with the 3 possible choices. But, as far as I can tell, you can only populate a DDL with a FIELD of values, not select values from one row.
Is it possible to get select values from a row of data in a databse using an AccessDataSource and populate a DDL with them?