I'm currently switching over to ASP.NET MVC and have ran into a problem. I have a list of items (e.g. a list of names) that I would like to display in a table. I would like to display it down a column, before starting onto next column.
I have tried a nested for loops for mark up of <tr/> and <td/>, and am getting undesired results.
I want to copy data from a table[tblExcel][No.of columns:2] to another table[ev_event] which has 5 columns, 2 columns from the another table, 3 columns from user defined value
[code].....
I am quite new to LINQ, and I am stuck with this probably basic problem, but haven't been able to find a solution, so I thought I could ask here.
So, I have this repository where I put my functions for data accessing, and now I need to write a function to get all the applicants that have applied for this particular advertisement, and their values too. Now, the values are stored in a separate M:N table, where every row consists of the applicantID,advertisementID and value. I just wanna append the value to every applicant that I show, so that it would look like a Ranking List.
However, I do not seem to know how to select just the name column from the Applicant table, and just the Value column from the ApplicantValue table.
And there's this Iqueryable interface that further confuses me...
Here's my function to get the Applicants only:
[Code]....
Now, if I try to add to the definition of the type two columns, it says that it only messes with types, i.e. one type should be passed. So I figured I would do a ViewModel and then pass it, like this
[Code]....
and then in the function I have no idea how to pass the values:
I am experiencing is that when I try to populate a table on a online environment with the below code, the table is populated twice. With the same code the table is populated correctly on an offline/production environment and cannot understand why :
This is what I have:
The table is called Trips
Code Behind:
[Code]....
This is what I use in my .aspx page:
(removed for brevity...)
<script type="text/javascript">
since I am trying to find one googling but there is nothing apparently.
I'm currectly tryin to access a specific value in my database in a specific column. I'm tryin to use the primary key of the table to access the actual value in the row of that ID.
The current code:
[Code]....
Just iterates through the table and looking for any row with the boolean 'checkin' value is True, then it takes the 'id' value of that row and stores it into an array. Is there a way that I can access a another entry, and only that entry, in the table with the 'id' stored in the array?
Like if my data base contained and int, primarykey, `id` value, a boolean, `checkedin` value, and a `time` value, is there a way to access, lets say, the row with `id` equalling 3 and and the checkIn value from that row?
How to handle this error
"An explicit value for the identity column in table 'UserActivation' can only be specified when a column list is used and IDENTITY_INSERT is ON."
i have a table which showing the food data from my Model, including Name, Amount, Storage and Expiry Date. I wish to either:
1. Let user click on the column header and sort the column they want
2. Or default showing the food which almost expired on the top of the table
I am working on a web app for an online photo album. It is the last project in Scott Mitchell's book: "ASP.Net 2.0 in 24 hours".
I am creating a page where users can enter new photo images. The functionality for uploading an image will come later. I am working on just inserting a new row into the Pictures table with an optional category, a required title and a required description.
I am getting an error when I try to insert a new row.
Here is a screenshot of the page with a shot of the dropdown list.
The Categories are user-specific. I am getting the correct values retrieved.
[URL]
There are two pretty simple database tables involved here.
NOTE: The CategoryID and PIctureID are both autoincrement integer columns.
[URL]
The page uses a DetailsView that uses a SqlDataSource that uses the Pictures table. (The DetailsView's Default Mode property is set to "Insert". The "Enable Inserting" checkbox is also checked.)
The dropdown list uses a dropdown control that uses a SqlDataSource that uses the Categories table.
When the "Insert" button is clicked the CategoryID value associated with selected (Category) Name on the dropdown list will be used along with the Title and Description values to insert a row in to the Pictures table. (If no Category value is selected, then a null value will be used for the CategoryID. This is OK because the CategoryID column in the Pictures table allows nulls.)
My problem is that I am getting this error:
Cannot insert explicit value for identity column in table 'Pictures' when IDENTITY_INSERT is set to OFF.
(FYI: I have the full version of both Visual Studio and SQL Server.)
Here is my source code for the page:
[Code]....
i have 3 tables which are Table A(a Id,b Id),
Table B(b Id,a Id,c Id),
Table C(c Id,b Id)
How can i select Table C column by using table A?
I'm trying to populate a date from a bound text field in a DetailsView. I keep getting a error when a DBNull is in the column. How do I avoid the DBNull when populating the text field.My code is as follows:
<asp:TemplateField HeaderText="CBYD Clear Date">
<EditItemTemplate>
<asp:TextBox ID="CBYDExpDate" runat="server" ReadOnly="true" Text='<%# IIf(Eval("CBYDDate") is DBNull.Value,"", String.Format("{0:MM/dd/yyyy}", Eval("CBYDDate").AddDays(30)))%>' />
</EditItemTemplate>
</asp:TemplateField>
populating the dropdownlist with column name. I have a gridview that has 7 columns . I want to have a textbox search and dropdownfield where user can select column name and type a word in search box and click search so that text for that column name is being search and displayed in grid. how I can fetch just column names from DB and search ?
View 8 RepliesI want to create a temporary table where the columns of that temporary table needs to be dynamic (those columns needs to come from the rows of another table)
View 6 RepliesI have a button on asp page when pressed enter loads a value in the textbox the code of which is
[Code]....
when i run this i get error Null ReferenceException was unhandled by user code
Object reference not set to an instance of an object.
I am using asp.net grid view which has is populated dynamically that means it has auto generated columns at run time.
I just want to know db type of these columns whether a column is text , date or int type.
populating the dropdownlist with column name. I have a gridview that has 7 columns . I want to have a textbox search and dropdownfield where user can select column name and type a word in search box and click search so that text for that column name is being search and displayed in grid. how I can fetch just column names from DB and search ?
View 1 RepliesI have one database in which student enroll no with his sem is stored . I want that if i enter stud enroll no then in dropdown list all the sem related to that stud should come. My database
Stud enroll no sem1 sem2 sem3 sem4
1 July 2013 Jan 2014 July 2014 Jan 2015
2 Feb 2013 Aug 2014 Feb 2014 Aug 2015
3 July 2012 Jan 2013 July 2013 Jan 2014
I have 3 tables(Roles,Actions and RoleActionLinks). Roles table has few columns(RoleID,RoleName,Desc). Actions table has few colums(ActionID,ActionName,Desc). In RoleActionLink is created for store the association between Roles and Actions and this table has the columns such as RoleID,ActionID When I created the data model(edmx). it shows only Role and Action as entity. i did not find RoleActionLink table. but even there is no direct relation between Roles and Actions table, both tables are automatically related using RoleActionLink table. When i create the new Action, a action record should be populated in Action table(this is works fine). At the same time, i need to populate record in RoleActionLinks table. But i dont have the entity to populate.
View 1 Replies new developer here. I'm trying to populate a ASP table dynamically. This is what I'm trying to do.I have table with 1 row and 4 cells. I want to import information from a text file into the various cells. Each line of the text file is what I want to go into each cell.
For example if the text file reads:
Date
Time
Path
User
I want each line to go into each cell. Is this possible, or will I need to create a SQL Server table and read from that?
I want to populate a gridview with table data from SQL. I tried just returning my SqlDataReader object and using it as my datasource, but I am getting errors that the reader has been closed. I wanted to convert this to a DataSet and just return a dataset, but I couldn't find an easy way to convert the row data to a dataset. I've also read that DataSets are dead in .NET 3.5/4.0, is this true? Here's my Data Layer method. It would be awesome if I could return something useable as a datasource:
public SqlDataReader GetSites()
{
SqlConnection sqlCon = null;
[code]...
I 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.
I am trying to build an application.
I have table in my database named tbl_customer.
I am able to display all the customers information using MVC i.e Name,Designation, Address, PhoneNumber, Sex etc.
Now I Want To Display Customer only Having Sex "Female" (Sort Out Data From tbl_customer)
I Am New To Asp.net.. I Am Using VS 2010, SQL Server 2005
e provide me the sample code file... on my mail id:- rahulbhute1987@gmail.com
View 3 RepliesI have two tables, Users and Roles. The roles table is a reference table for the different roles of my site (RoleId and RoleName columns). The Users table contains profile data for each user, including a RoleId column that is FK'd back to the Roles table [RoleId].
Both tables are in a Linq to SQL model.
I have an edit page created which lists all the profile values of a user. The edit page inherits the User model. One of the editable values is the RoleId field. I want to set this up to be a drop-down list that contains items labeled using the RoleName column of the Roles table, and matched with values of RoleId.
MenuItem menus = new MenuItem();
GridView1.DataSource = menus.GetDataTable();
GridView1.DataBind();
menus.GetDataTable() returns a DataTable. In the above case, we are returning to GridView. I need to populate the data into a combo box. How can i do it?
NOTE: Assume GetDataTable only returns records of a single column. I'm using Winforms
I need to populate the foreign key coloum in the table.
i have three tables
PATIENT DETAILS
ptID
firstName
lastName
address
IMPLANT DETAILS
impID
ptID
productID
productSerialNo
PRODUCT
productID
productName
I am instering data in PATIENT DETAILS and IMPLANT DETAILS table on the same page from single button click .
I have a foreign key on the table IMPLANT DETAIL (productID) which i populate through the value on the dropdownlist .
What my problem is how will i populate foreign key (ptID) in IMPLANT DETAIL table. When ptID (PATIENT DETAIL) will also be generated from the same button click at almost of the same time.