ADO.NET :: Delete All The Data From Database Through Linq?
Aug 15, 2010how to delete all the products from table against a category id using linq.
View 2 Replieshow to delete all the products from table against a category id using linq.
View 2 RepliesI have a question about linq delete.
I have 2 table in database and they are joined.
First Table: UserID, UserName, UserSurname, UserPhone, CompanyId
Second Table: CompanyId, CompanyName
First Table I have many recods with related second table.
I want to delete one company in second record, But firtly I have to delete users (more than 1)
How can I delete it with using linq?
How to fetch, insert, delete and modify the data in gridview...
View 1 RepliesI want to delete entity from linq class this entity has one to many relationshipe with another table so I want to delete all entities related to this one for example I want to delete classroom so i should delete all student is this classroom fisrt i don't how to delete all these student in one time
View 1 RepliesI need a Listview that will show info from several database tables. My delete button, will not delete the record from the database. I cannot get DeleteOnSubmit() to work at all. I am in the very beginner stage. This is my first project. I thought this would be a good project for learning purposes.
Here is my code:
[Code]....
I have a ListView which I populate using DataTable.
In each row I have a delete button. When the user clicks on the delete, that particular row is deleted in the DataTable Table.
After I perform the delete, I want to avoid page reload just to populate the ListView with the new set of records without showing the deleted row.
I suppose LINQ is the best choice for this. But I am unable to implement it.
[Code]....
I have a gridview with linq and in the itemtemplate I have a column like this :
Bind("SUPERFICIE","{0:N00}")
If I display my gridview, I have this kind of value : 6'555
When I delete this row I have this error :
Failed to define one or more properties of type DS.MY_TABLE 6'555 is not a valid value for Decimal.
Apparently, when I use a format on bind, it change my values in my ds and I cannot delete my row!
I don't understand, because in my logic with the bind format I don't need to correct some formats for delete a row !
how to Delete with linq to sql using mvc 3.0? how to delete in mvc 3.0
View 6 RepliesI have an asp.net application that was working fine on my old dev machine that run XP pro and Access 2007. Although I did have problems getting the ACE OLEDB provider to work and so stuck with the old Jet provider.
I was given a new Windows 7 pro computer that also has Access 2007, I had no problems moving my app to the new dev machine. No problems that is until I had to add a new column to one of my database tables since then my app has been very weird when deleting rows (I am using the OleDbDataAdapter to access the database).
Existing data within the database deletes just fine, however if I add new data and then immediately try to delete it nothing happens, no error, no delete, nothing. This is the weird part; if I navigate away from the page I use to maintain the database (i.e. click my link back to the home page) and then revisit the database maintenance page the new data can be deleted just like old data. I add Response.Redirect() into my code to see if that would work but no, only navigating away from the page and then returning allows me to delete the data I had just added.
This problem did not occur until i added the new column to the database table. There is no problem with my code, the same code worked fine on the old machine and on the new machine right up until i added the new column to the database table. My thoughts are that it must be some combination of using Jet and IIS7. Oh and both the app and the database are on the same machine.
Heres my code:
[Code]....
I am using a mysql database and i can't get the following code to work. I am using the exact same code (minus the column names) with a mssql database and it works comepletely fine.asp.net page
[Code]....
code behind:
[Code]....
I am not sure if I need to change something for it to work with mysql or not but its not working. It doesn't seem like its hitting the ibDelete_OnCommand, it just refreshes the page and the buttons are gone.
I am working on delete confirmation box in asp.net mvc using linq to sql. I want a delete confirmation box if i want to delete record corresponding to a particular id.If i click ok, it has to map to Delete controller and if i click cancel ,it has to be retained in the same page.
View 3 RepliesI use Linq to Entities and want to update and delete data. I know the ID of the object / record.
How can update and delete without first selecting the complete object (asuming that this is better for performance)?
I want to delete the items in db using linq to sql below is my code
[Code]....
here i am very much confused about this var delt= from x what is x here? and dc2.emps.deleteonsubmit (here what is emps?)i am getting errors like emp id doesnt exist in the current context.
how to delete a row only from gridview not the database?
View 4 Repliesthat is i want to delete my all he data of database but i want taht all the tables a andreletion will be remain same how can i do it easily
View 7 RepliesI am done a delete row of gridview using json succesfully but when row is deleted but it is not reflacted on page directly after refresh page grid will update tell me what should done in Onsucess method of java script
This is my Javascript to delete row in gridview
<script type="text/javascript">
$(document).ready(function () {
$(".deleteGridRecord").click(function () {
[Code]....
I have a datatable in which some of the rows contain a column with duplicate values. I need to be able to delete the duplicate rows and leave only one, doesn't matter which one.
The rows might look like this:
A, B, C, D
E, F, G, D
H, I, J, D
I need to delete two rows and be left with only one.
how can i delete a row in datatable using linq to dataset?
I have a dataset in my project, need to delete some rows filtered by ID
how can i do?
hope to delete all records in DBPrograms, is the following code correct?
DBContext db = DBContext(PublicDBPar.ConnectionString);
db.DBPrograms.DeleteAllOnSubmit(db.DBPrograms);
db.SubmitChanges();
[URL]
How can I Edit/Update, Delete and save record to database
When I am creating a new form, I am inserting "RequestId" of particular form in Textbox as well as uploading multiple file (that comes in Gridview)and on save button click, those gridview multiple files with "RequestId" are saved in Database as below:
Id Request Id File Name
1 12 Abc.jpg
2 12 Xyz.doc
3 12 Pqr.png
4 11 Abc.xls
5 11 aa.jpg
NOTE: Auto increment of "Id" is true.
Now, I want that If I delete any file from the Gridview(which has all uploaded files), I want that file to be deleted from database table also.Currently on Deleting file from Gridview, files from "Folder" are deleted not from Database.
I want to delete selected item of dropdownlist on Delete button click
Hint :1-It should also delete value from Database.
2-I want to Delete with the id of that selected item.
How to add data to grid with on click of button, without save to database, and on again click to button data will append to grid in new row.
View 1 RepliesWith linq to entities, how can I delete and update data inside a database without first selecting the complete entity at first?
View 4 RepliesThis is my House_p table
Iamge3 Image2 Image1 Name ID
3.JPG 2.JPG 1.JPG SARA 1