DataSource Controls :: Unable To Delete Data In The Third Table.
Mar 18, 2010
I have three tables:
Colour(Colour ID, Colour)
DogColours(ColourID, Dog ID)
Dog(Dog ID, Breed)
Colour ID and Dog are primary keys.
I have three web forms, one for each table. Dog colours consists of data that is already in the system from the other two tables. It basically joins a breed to a colour. My problem is this:
When i try delete a dog which is being used in dog colours the program crashes. How can i prevent this crash?
The second problem, the data source in the dog colours web form has the insert, update and delete tick boxes greyed out in the 'configure the select statement' so i am unable to delete a colour and dog joined together. how can i delete something in the dog colours?
How do I remove duplicate rows from a data table based upon a two column values;I want to pass in a Data Table and a column names and get the data table back with data rows where that columns value are unique.
I have a Data Table with Duplicate Rows i want to delete the duplicates rows based upon two column values if both columns values are there then Delete the row.
I have three table like above, table C is mapping table which has foreign key of Table A and B.How can i select and insert data in Table C using Entity Frame Work?
My code is not updating the sql database. I am definately passing the correct information in to this function, and it runs without errors. If I exec the procedure with the passed in data, it works great. Can someone tell me what is missing?
I've have to delete multiple rows from database in a table . Which is the best way to delete data to optimize performance of sql server as well as asp.net.
I have two tables dept and employees those table have parent and child relation ship link column is deptno i want to delte department even this departmetn contains employees i want to write storedprocedure for first delte employees and after department if i wrtie these two querys in storedprocedure will i get any problems
Begin Delete from tbl_employees where Department_Id=@Department_Id Delete from tbl_Department where Department_Id=@Department_Id RETURN END
I have one table in database in which millions or records exest already. I can't change the structure of table. And i have to create 4 store procedure each of them will fetch 100 records from this table. And they will keep going on. But condition is that they should not fetch same row. how can all store procedure fetch uniqe data from table.
when i want insert a record i see an error like this Can't perform Create, Update, or Delete operations on 'Table(MainMenuLink)' because it has no primary key. with this codes:
MyLinqDataClassesDataContext db = new MyLinqDataClassesDataContext(); MainMenuLink li = new MainMenuLink { Link = "www.tprogrammer.com", LinkSubject = "subject" }; db.MainMenuLinks.InsertOnSubmit(li); [code]....
i Am using Special character while insert in the database. When i user single Quotes('), it shows an error that "Unclosed quotation mark after the character string" How can i over come this issue. But i want to insert the special characters"
Not a fan of creation and modifcation data in each table's row but I don't make the rules here. Something about normal comes to mind. Simple method to insert or update data in a table ia EF. Datatype = smalldatetime and no it is not changing across schema. Don't care about milli seconds. In oOrg = null I always fail because of a datatype mismatch.Not sure but didn't M$ make both of these products, and shouldn't the EF know about a smalldatetime when it reads the schema? So what is the fix outside of changing many tables to be datetime which is frowned upon at this piont.
public static String updateOrgs(Orgs org, Guid user) { using (ELogs2Entities EL = new ELogs2Entities())
Unable to add update and delete functionality to any data control using MS Visual Web developer Express and SQL server 2008. The advanced options in the data connection wizard remain disabled. I can display data OK.
I am however able to connect to an Access 2007 DB through the same page and get this functionality to work.
i am trying to delete using Gridview from child first and check if there is no child to delete in parent table i am using sql datasource in the delete tab in sql datasource i put DELETE FROM table1 WHERE (IDtable = @IDtable) IF (SELECT count(*) FROM table1 WHERE parent_dtl_id = 66) =0 BEGIN delete from parent_dtl where order_dtl_id= 66 END
i deleted all items,deleting from 2 tables child and parent was successfully on the last row from gridview but i have this error on my page on the last delete Specified argument was out of the range of valid values. Parameter name: value
I'd like to delete the row without using the DeleteCommand in GridView. I created the button "Obrisi" which should delete the row from the table, but when I click on it I get the following error: "The multi-part identifier "System.Web.UI.WebControls.DataControlFieldCell" could not be bound." and I don't understand what the problem is.
Here is the code (part of the code after else if is important):
I am insert and update the data in Excel sheet.while iam deleting the data it gives the Error like Deleting data in a linked table is not supported by this ISAM.
string excelConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + Fileloc + ";Extended Properties=Excel 12.0;Persist Security Info=False"; OleDbConnection excelConnection = new OleDbConnection(excelConnectionString); String cquery1 = "Delete from [data1$] where id=" + Txtid.text; OleDbCommand cmd = new OleDbCommand(cquery1, excelConnection); excelConnection.Open(); cmd.ExecuteNonQuery(); excelConnection.Close();
GridView: grvResultPrimary Key: FLTIDTextBox: txtRemarksThere is a button named btnAdd in the FormView named FormView2.txtRemarks is outside the form.The scenario is that if user wants to add a record with empty textbox and click btnAdd then how to restrict user to add empty row to gridview?I have tried Validation by controling txtRemarks but it is not helpful for me because in the page there is a FormView1, FormView2 and grvResult.If I am applying validation then all other updation methods of FormView1 and grvResult are disturbing.Simple is that I want to give option to user that without empty data using txtRemarks, user can enter data to grvResult.
Basically i deal with two tables.i have a table T1 of the following format:id company_name i need to read this data and create a table T2 as followsi wrote the following code. it worked fine for retrieving data and modification but fails to insert the modified data into the 2nd table.the error is, it does not recognise the value for @token
ArrayList dynarr=new ArrayList(); // global variable protected void Button2_Click(object sender, EventArgs e) { int row = 1; int i; string strcmd = null; string Connection = "Data Source=...."; SqlConnection conn = new SqlConnection(Connection); string str = "select company_name from T1 where ID=@ID"; [code]...
May you tell me how can I transfer data from a table to another table, the condition of non-repetition rows
as a procedure in database MS QSL server 2005 ,Works in the first day of the month I use the first table in the prodation environment it is contain the employee data and the second to update first table only
First time using a ListView control, I have it inside an UpdatePanel:
[Code]....
[Code]....
[Code]....
[Code]....
When the UpdatePanel Loads, it feeds the data to the ListView. Whenever the user clicks on a row in the ListView, a new window displaying a "note" pops up, the ItemDataBound event ties it all together. What I'm trying to do is add a button to each row so that the user can delete the row. This would call a Sql statement and then the row should disappear. I followed a couple of articles I found on ListView on how to do this, so I added a button called imgBtnDeleteNote (see markup above) and set the CommandName = "Delete", hoping that it would trigger the ItemCommand and ItemDeleting event (I have some bogus code in them, first I wanted to see if they would trigger).
The problem is that they don't seem to get triggered when I click on the delete button. All the rows in the listview disappear, and when I manually refresh the page they come back. My guess is that the events are not firing because I'm not using a DataSource object in the aspx code, but I'm not sure.
