I'm trying to flag a record as deleted by clicking the delete button on my bindingnavigatordeleteitem button.
The code is:
Private Sub BindingNavigatorDeleteItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BindingNavigatorDeleteItem.Click
code:.........
The error is "Deleted row information cannot be accessed through the row"
I am trying to delete data using bindingsource.removecurrent() ,but using the following code, it's just not working.
CODE:
bsmail is filtered in another form, perhaps the problem lays there? i don't know if the code to remove the current data is correct.
If you have a form with two datagridviews that were dragged on to the form from a datasource that have a parent/child relationship with foreign key constraints. Is there any difference between using the binding navigator Delete button or adding a button to the form and in the Click event put "somebindingsource. RemoveCurrent". Basically what I'm trying to find out is if clicking the navigator Delete button causes "Removecurrent" or does it do something else or something additional.
View 2 RepliesPrivate Sub LoadMovieDetails()
Try
Dim cmd As SqlCeCommand
[code].....
Maybe i'm missing something, but how can i make my application to save the value that i use to replace the null values that exist in the database?Let me explain i have a form with several textboxs to let the user enter/edit some data. At the first time the user opens the form, the are some fields in the database that are null, so i use one of the overloaded versions of the control.databindings.add(), and set default values for those fields.
My problem's when the user clicks save without changing any of the default values, i can't detect any changes to the datatable, so the update method doesn't update anything.
I have one simple questionWhat's the code for deleting one row from Database using BindingSource and DataSet? Just like from BindingNavigator.
View 14 RepliesI have a dataset (dS), adapter(aD) and bindingsource(bS) I am using in a form. The datasource for bS is dS, and I am filling the adapter in the form's Load event with a table (tbl) from the dataset.
On the form I have a listbox and a textbox with the following properties set
[Code]...
I am trying to see if producttextbox.text (getting ready to be entered) is duplicated in the DB. I have searched and search and typed some code but nothing is working. Code shown is so far the closest.I do get the NO MATCH message box now although it is a duplicate record. At least I know I am getting somewhere...
Public Sub ValME()
Dim dv As New DataView(FSC_DATADataSet.PERS)
dv.RowFilter.Contains(ProductTextBox.Text)
[code].....
I'm using a bindingsource to bind a dataset to a datagridview. Normally I would use a dataview to sort and filter the data, but since a bindingsource can also do this, I figured I would not need a dataview anymore. But I'm not sure how to get certain data from the filtered source. I know I can get it from the datagridview, but I'm not loading the entire dataset into the datagridview. I guess I could and then just make the columns I don't need be invisible. Or I could go ahead and use a dataview also, but that seems redundant. I was wondering if there is an equivalent to this code to get a specific item from a dataview, but pulling it from the bindingsource:
tbCode.Text = dv.Item(m_recno).Item("CodeNo")
As long as I'm not filtering the data, I can get it from the dataset, but when it's filtered, the indexes won't match.
tried in many ways and I know that very soon will succeed. at least I am very resourceful showing that ...... Please help me correct this code. because the DataGridView throws I query the data are in the range of dates
Option Explicit On
Option Strict On
Imports System.Data
Imports System.Data.SqlClient
[code]....
I'm trying to fill some textboxes programmatically after clicking the bindingnavigator add button but the textboxes wont fill..Using the listchanged event of the bindingsource doesnt work neither..[code]
View 7 RepliesI've got a bindingsource that has a datasource of a datatable
capabiltiesBS.DataSource = vendorBAL_C.capabilitiesTable
And that table looks like this
Select VendorId, Capability, LanguageFrom, LanguageTo From VendorCapabilities_T
At any rate - I do this to filter the binding source and then thought I could loop through the datarows and fill a tree view with them
capabiltiesBS.Filter = "VendorId=" & VendorId
For Each cdr As DataRow In capabiltiesBS.List 'vendorBAL_C.capabilities.Table.Rows()
[Code]....
I have work with BindingSource in VB NET 2008
--
dim bsA as new bindingSource
BsA = DB
DataGridView.dataSource = bsA
[code]....
but data has changed this is correct ?I don't wont change this data what I have to do ?
I datagridview and I populate it using a bindingsource. I have the following code in the bindingsources PositionChanged event and it works as I want it to except when I filter the bindingsource.
Private Sub ProductBindingSource_PositionChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ProductBindingSource.PositionChanged
If (Me.ProductBindingSource.Current IsNot Nothing) Then
Dim dr As DataRow = CType(Me.ProductBindingSource.Current, DataRowView).Row
Dim ProductId As Long = CLng(dr.Item(2).ToString)
Dim ResultId As Integer = CInt(dr.Item(0).ToString)
GetReport2(ProductId, ResultId)
End If
End Sub
The scenario is when I click on a row in my datagridview the bindingsources positionchanged event fires and I load a crystal report. Problem is when I filter the bindingsource, even though the first item in the grid is now different the incorrect report is displayed because the bindingsources position hasn't changed.
I populate a datagridview using a bindingsource and dataadapter. So I join 3 tables in the view to get the data i need.
so I have my view as a child table in my dataset. and a table called classes which is the parent table. So when I select a Class(class 1A for example), my datagridview displays the pupils in that class.
Now i need to add another relationship in the dataset. so when I select a day in a monthcalendar, I need to add 5 checkbox columns for each day to my datagridview. Should I add these 5 columns to my datatable? i'm not sure what the best way is.
Then for each day I tick I have to save to my pupil_job_day table. I will save the peoleid,their accountid and the date. please help me
i am currently working on a database project using Microsoft Access 2007 and VB Express 2008.my problem is, i want to create a searching function in one of my tables; table Coachee. I know that it is possible to search data using bindingsource.filter as i've already succeeded in doing that. The thing is, how do i actually prompt a messagebox saying that the record of the Coachee ID to be searched is not found? [code]
View 4 RepliesI have added a handler in my code for the bindingsource currentchanged event: I have populated a datagridview. AddHandler PeopleBindingSource.CurrentChanged, AddressOf ChangeHandler then on the ChangeHandler Sub I populate an HTML report. However I don't think this is the best event to handle this. I have to datepickers on my forma as well. So say I click on a row in my dgv, that persons report loads. Then I change the start date on my datepicker,
Now i want to click on that row again to refresh the data, but since the currentchanged event doesn't fire the data won't refresh. I have to click on another row then click on the row I want to view in order for the event to fire. which event is best to do this?
im dr As DataRow = CType(Me.ProductBindingSource.Current, DataRowView).Rowbut I get the error saying:
View 15 RepliesI have a database with a table that is a child to many other tables. I am using this child table as a datasource for a datagridview. I am using comboboxes to display specific fields in any parent tables, instead of the user seeing the foreign key. Everything is fine. However, I would like to filter the BindingSource based on text matches between any of the fields in the child table and the corresponding fields of the parent tables.
[Code]...
I have a datagridview binded with a bindingsource with all the options of editing,saving,deleting enabled.But i am unable to understand the problem that is why the data from my datagridview is not getting saved.This is the code which I am using
Private Sub frmDvdMovieData_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'Library.category' table. You can move, or remove it, as needed.
Me.CategoryTableAdapter.Fill(Me.Library.category)
[code].....
I am trying to filter the results of a datagridviw using the bindingsource.filter method.
Dim filters(2) As String
...
If Me.txtPartIDFilter.Text = "" Then
[code]....
The issue is in the last line. ID_Part is an Int64 data type filters(0) is a string so the system returns a "Can't perform 'Like' operation on System.Int64 and System.String" error message.As you can see I tried converting the data type, but that failed since it is encased in String.Format()- it's going to be a string no matter what, I suppose.It's almost 1:00 a.m. so I'm not firing on all cylinders.
I am using the following code to populate data in Textbox1:
[Code]...
I have few functions assigned in TextBox1_TextChanged event. The problem i am facing is this event is fired twice, once after the Fill command and another after the Position command whereas i want the event to fire only once after the Position command. What should i do?
I think I'm making a mountain out of a mole hill. I have a DGV that contains 5 columns made up from 2 different DB Tables. Here is the procedure that populates the DGV.
Private Sub SetBindingSources(ByVal strClientID As String)
Try
'This section of code populates the grdAddresses DataGridView
[Code]....
I have a BindingSource bound to a DataTable.
I use the BS Filter and would like to iterate the filtered dataset of the DataTable using the Bindingsource.
I know I can do a MoveFirst and the MoveNext and each time using the BS.Position get the correct row in the underlying DataTable. But how do I know when the sets ends? I'm sure there must be such a property, but what is it?
I'm trying to display a DataTable using a DataGridView and a BindingSource as such: (assuming the DataGridView1 and BindingSource1 has been added using the IDE)[code]...
View 3 RepliesI am using several tables, say A, B and C. How can I put these into a variable so that I can use e.g.tnameBindingSource to represent the bindingSource according to the parameter passed?I have spent hours trying to do this in vain.
View 1 RepliesI want to convert this vb6 code in vb.net using BindingSource
Do Until recordSet.EOF
if isnull(resordSet!FieldName)=true then
recordSet.delete
end if
recordset.movenext
loop
I have one datagridview control, a BindingNavigation and a Binding control on my form. I populate the datagridview control through the code. Moreover, the datasource properties of the DatagridView and the Binding controls are assigned a value through code (I didn't specify anyting in the properties window). The same for the bindingsource property of the BindingNavigation control (I assign a value trhough code). My code is the following:
[Code]...
This code brings and shows the right results in the datagridview control, but the navigator control is inactive. I know that I have to bind the controls(DataGridView + BindingNavigator) to the BindingSource control. Is this a problem that I tried to do this by coding?
I have a bit strange problem in my application. I have more binding sources then one in my different forms. All of them work great when editing, deleting the data except one. But this one is a bit different from others. I'm using it only for updating and deleting. You can't add new records using it. And also its dataset doesn't contains any Insert commands in it. That's the difference.Now problem is:
After deleted the rows (using BindingSource.RemoveCurrent), it doesn't mark rows as deleted. I call BindingSource.Count method after deleted rows, it sill counts deleted rows. So it seems it doesn't update the dataset. But it is. Dataset.HasChanges returns true.
How may I filter a bindingsource between 2 numbers? Obviously "column_name BETWEEN Num1 AND Num2" does not work, since between is nor supported.
View 5 Replies
