.net - Delete Row From Related Child Table?
Feb 5, 2011I've created a combobox for navigating orders in a grid view.
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How To Delete Row From Related Child Table
Aug 27, 2010Is there a way to clear all the textbox and combobox in a form without looping through panels and tabpages, because those textboxes and comboboxes were place in a tabpages and panels.
View 7 RepliesFilter Parent / Child Table In Linq Query Based On Entities In Child Table?
Jul 9, 2010I have a table (Projects) which is linked to projectVersions on projectID..projectVersions contains several columns on which I'd like to filter a returned project (and associated projectVersions) list. For example there is a "capacity" column and a "country" column. I am doing a filtered list of projects on one page and I'd like to include all projects where any one of the associated projectVersions has a capacity of 750ml and a country of "France" for example.It may be that a particular parameter is not set and so I pass a zero to indicate not to filter on that.I guess this needs some kind of subquery as when I try and do something like this: [code] it doesn't work as the "xxx" bit, being one-to-many, expects me to specify an item to get at the entities within and yet I want to query where ANY of the associated versions match one of the criteria.
View 1 RepliesDelete Records From Related Tables
Jun 6, 2011i have 3 tables in ms access that is patient , NOK,and admission they have related fields, i am using vb 2005. when i delete a record from the patient table i want the related records from the other tables to be deleted.
View 1 RepliesSql - Delete The Contents Of A Related Record From Two Tables?
Dec 11, 2011The StudentDetails.Students is the master table which forms a relationship with RegistrationDetails.Registration. Therefore, StudentID is the primary key in the former whereas it is a foreign key in the latter.Now I've tried each of the following codes but each of the first two gives an error message "Incorrect syntax near 'a'" and in the case of the third one DbTransaction as in "Dim trans As DbTransaction" is also not a valid type. I'm using SQL Server 2008 Professional Edition.
cmd = New SqlCommand("DELETE FROM StudentDetails.Students a, RegistrationDetails.Registration b WHERE (b.StudentId=a.StudentId) AND a.StudentId='" & txtStudentID.Text & "'", cn)
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Delete Contents Of A Related Record From Two Tables( Using SQLTransaction)?
Dec 15, 2011I'm getting "Format of the initialization string does not conform to specification starting at index 0" error having used the following code. The commands are supposed to delete a related record from two tables namely StudentDetails.Students as the master table and RegistrationDetails.Registration as the child table. [code]...
View 1 RepliesCreating DataRelation With Parent And Child Tables And Generating Xml With Subnodes For Child Table?
May 21, 2012Dim obj_DataTable As New System.Data.DataTable("Category")
Dim obj_DataSet As New DataSet()
'Declaring the array of DataColum to hold the Primary Key Columns
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Refresh Table Adapter When I Have A Child Table Attached With Parent Table?
Dec 21, 2011I have a data table whose one column is related to a column of another table. I have a listbox in a form which shows a column (which is sorted by another column value by ORDER clause) of the parent table and other columns are in textboxes. The child table is represented by a datagrid. When I add a new item in parent table and click save, the newly created item is listed at the bottom of the listbox violating my ORDER clause. When I wrote some codes to fill data again after updating, it shows an error message[code]...
View 3 RepliesSql Server :: Display In A Bounded Datagridview A Field From Another Table Related To The Bounded Table?
Jan 20, 2012i two tables named tblaccess(nID,nRoleID,nModuleID,cAccess) andtblmodule(nModuleID,cModuleName) and i have a datagrid which is bounded to tblaccess. the problem is, I want to display cModuleName from tblmodule instead of nModuleID. please tell me how.
View 1 RepliesRelated Table Won't Save
Apr 13, 2011The way it works is for each event, there can be multiple 'disciplines'. So I have a disciplines table related to my events table.
I save an event and save a discipline within it, when I open the application again, the event has saved but the discipline hasn't.[code]...
ADO.NET Related Table Concurrency Error?
Jan 28, 2009I get an error when updating a related table, the main table can be updated but the related gives me a concurrency error but I don't know why. Btw I'm the only one using the program and it's connecting to sql server 2005 express.Inserting works like a charm.My piece of code, I hope you get it. The concurrency error is given on Me._objtblOrderinformatieA.Update(Me.objdtsOrders.orderInformatie)
If MessageBox.Show("Bent u zeker dat u deze record wilt wijzigen?", "Orderbeheer", MessageBoxButtons.YesNo) = 6 Then
update_dataset()
Me._objtblOrdersA.Update(Me.objdtsOrders.orders)
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Asp.net - Sort A GridView Column Related To Other Table
Jun 10, 2010i have a GridView bound to a DataView. Some columns in the DataView's table are foreignkeys to related tables(f.e. Customer). I want to enable sorting for these columns too, but all i can do is sorting the foreignkey(fiCustomer) and not the CustomerName.
I have tried this without success(" Cannot find column ERP_Customer.CustomerName "):
<asp:TemplateField HeaderText="Customer" SortExpression="ERP_Customer.CustomerName" >
A tried also the DataViewManager, but i've a problem to detect the table to sort:
Dim daCharge As New ERPModel.dsERPTableAdapters.ERP_ChargeTableAdapter
daCharge.Fill(dsERP.ERP_Charge)
Dim viewManager As New DataViewManager(Me.dsERP)
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Linq Related Table Not Queryable Error?
Aug 17, 2010I've got a problem with Linq in VB.NET.I've created a .dbml file from my db, and everything looks good - relation "arrows" between tables are visible, etc.But when I want to use simple query (taken from 101 Linq Samples by MS):
Dim q = From h In dc.Hours, w In h.WorkType
I receive an error:
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Load Related Entity's From Jump Table?
Nov 11, 2011I have a jump table to relate the Customers and the contact, I want to load all contacts by a customer name.
Dim Q = From Cust In EnData.Customers Where Cust.CustomerID = ID Select Cust
ContactRow = Q.FirstOrDefault.CustomerToContacts.??? here I'm stock...
Data Table Only Partially Updates (Parameter Related)?
Jan 25, 2012I have a data table that I am updating. The table has 5 rows.The first row in the data table that has an ID of 1 will not update with new values, but the rest of the data table does update, I can't figure out why.
It is an access database I am updating, Is there a problem with my Update String? Because it updates all of my table except for the first row that has an ID of 1.
Dim sqlSSRTotalUpdateParameters As String = "UPDATE [SSRTotalChecker_" & FullName & "] SET [Totals]=@Totals,[Category]=@Category,[Materials]=@Materials, [Labour - Field Effort]=@LabourFE," & _
" [Labour - PMO]=@LabourPMO, [Labour - Supervision]=@LabourSuperv, [Labour - Administration]=@LabourAdmin," & _
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Typed Dataset Binding Fields Of Related Table?
Feb 9, 2010I have a typed dataset with 2 tables and a relation between the 2 tables. The relation is a 1 to 1 relation.First, who cane help me how to bind both the fields of the parent and the child table to a textbox.And second, in the dataset designer you cane preview the data. There a see for each record 1 row with all fields of the parent and also the fields of the child table. How cane i have the same result in a datagridview?
View 1 RepliesC# - LINQ To SQL Join Two Tables To Select Parent Table Twice Based On Two Different Columns From Child Table?
Aug 23, 2010I have two tables Employees and CafeLogs. Some employees can be cashiers and also customers at the Cafe shop.
Table structures:
Employees: EmployeeId(PK) , FirstName, LastName
CafeLogs: LogId (PK), CashierId, EmployeeId, Value, => CashierId and EmployeeId are the data from column EmployeeId of Empoyee table
Table relationship:
Employees 1:N CafeLogs (CashierId (FK))
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Right now I know how to select only LogId, Employee's name, and , Value, not with Cashier name yet.
Dim query = From log In db.CafeLogs _
Join emp In db.Employees On emp.EmployeeId Equals log.EmployeeId _
Select log.LogId, emp.FirsName, emp.LastName, log.Value
VS 2010 Delete Top 1 - Delete A Number Of Records In A Table From The Last And Forward?
Mar 16, 2011I'm trying to delete a number of records in a table from the last and forward. My idea is to use sql like this: delete top " & variable & " * from table where ID = something It gives me a general sytax error. Is it at all possible? Fuga. Edit: I also have the order by statement there. I just forgot to put it in the question.
View 5 RepliesWhy Does DELETE Not Delete Rows From Underlying Database Table
Feb 5, 2010*WeightCheck is a dataset connected to a mdf SQL server file..Datagrid on form is bound to the dataset..This code executes because datagrid on form updates with the deletions..[code]
View 1 RepliesConnect Table Like America And Child Table Like State?
May 3, 2010how to connect my table like america and child table like State i want to add sub node or childto th tree view?
View 11 RepliesShow Parent Table And Child Table In Datagridview?
Jun 18, 2009in DataSet ds I have "tbl1" as parent table and "tbl2" as childtablehow to show both table in datagridview if column id in "tbl1" related to column headerId in "tbl2" ?
View 1 RepliesViewing Child Table With Parent Table In Datagrid?
Jun 17, 2009I have a SQL Data Base. I have created a relation between these tables. Problem is when i drag and drop it on Data grid i get only Parent table columns but i want to sea them both like this.
- Parent Table Row
- Child Row 1
- Child Row 2
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Delete Key Does Not Work O MDI Child?
Sep 26, 2009I Have Mdi form and one Mdi child. If I put a textbox in the mdi child form, the Delete key does not work, i.e., no keypress or keydown event is fired.
View 1 RepliesChild Tries To Delete A Character From A Previous Field?
May 3, 2010I am making a small and very simple game that is ment to help children learn to recognise letters. I have come to a stop as I have 3 text fields. When something is entered into the first field, the program will set focus to the next text field. The problem is when the child tries to delete a character from a previous field as the focus is already set to the next text field. I want it to delete the character from the previous field when the backspace bar is hit. Any suggestion how this might be done?
View 5 RepliesDelete Foreign Key Record From Child Data Grid?
Nov 28, 2010I have master detail form with two datagrids. customer and order detail.I have relationship between customer and order detail on customerid.How do i delete record from order detail when i click delete button to delete record from customer datagrid.Here is the code so far.
Private Sub btndelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btndelete.Click
'Me.CustomerTableAdapter.Fill(Me.CustomerDataSet.Customer)
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Asp.net - Update / Delete The Table Records In ASPNETDB.MDF In Single Update / Delete Query?
Nov 29, 2010I want to know how to Update / delete the table records in ASPNETDB.MDF in single update / delete query ?
View 1 RepliesData Table - Datagridview - On Running The Code A Second Time The Related Data Is Lost
Aug 6, 2011I have two data tables. the second related to the first. Using a datagridview for the first table I am able to enter and save data ok. if I run the code twice in a row the data is still there. When I edit the data in the related table in it's own datagirdview the data is there and displays correctly, but on running the code a second time the related data is lost. In both cellendedit events I am using
Me.table.Update(Me.FigsDataSet.table)
Me.Validate()
Adding Association (link Table Record) Without Creating A New Related Record?
Jul 31, 2011I have two tables Products and Categories with a many to many relationship. I am trying to copy the categories linked to one product (OriginalProduct) to another product (newProduct). The problem is when I execute the SaveChanges() method, I not only get the records in my linking table, but it also creates another copy of the categories in the categories table. I've tried this in many ways but here are the last couple that I've attempted:
' Copy Product/Categories
For Each oneProdCategory In OriginalProduct.Categories
Dim relatedCategory = _productContext.GetObjectByKey(New EntityKey ("ProductInfoEntities.Categories", "RecordId", oneProdCategory.RecordId))
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DataGridView Saving - Set Employee ID In The Related Table In The Grid to The Value From The Employee Record?
Sep 15, 2009I have a VB project with a form where user adds/modifies the data, data are stored in SQL. On the form there are 2 tables that are linked by employee ID. When I test the process and insert a new employee record and add new comment for this new employee in DataGridView - when I save it I get an error that "Object reference is not set to an instance of an object". During more detailed debug it says that CurrentCell is set to Nothing - even that I do have values in all fields.I do set employee ID in the related table in the Grid to the value from the employee record - so all primary keys do have value and the comment is saved after all but I get an error and saved comment dissapears from the screen right after saving. When I pull the same new record again - everything is saved. What am I missing and how to avoid the error and dissapearing of the saved comment?
Also - I tried to save the new employee data in the first table first and then add comments - it didn't solve the problem. But if I add first part of information in the main table, save and close the form, then go back and add comment - it works fine. The problem is - it's not convenient for the user - they'd like to enter everything at once.
Private Sub TblCommentsBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TblCommentsBindingNavigatorSaveItem.Click
Me.Validate()[code]....
Cannot Add Or Change A Record Because A Related Record Is Required In Table?
May 11, 2011I'm receiving the following error:"You cannot add or change a record because a related record is required in table 'FORN_NIB'."
I cannot understand this error fr the related record really existe on the FORN_NIB table. It is even picked up from there. Here's the code where the error occurs at the .Update instruction:
HTML With rst
.Open("DADOS_RECIBOS", conn, ADODB.CursorTypeEnum.adOpenDynamic, ADODB.LockTypeEnum.adLockOptimistic)
.AddNew()
.Fields("NUM_FORN").Value = Me.TextBox1.Text
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