How To Push New Record In BindingSource
Sep 8, 2009
I have a fairly simple form that uses a SQLAdapter, a DataSet, and a BindingSource to allow users to navigate through the records in a table. Each time the user navigates to a new record, I update a DataGridView control that shows the appropriate records in another table. Now I'm trying to add a new record to the main form, using this code:
bs.AddNew() 'bs is the BindingSource object.
bs.EndEdit()
daCCS.Update(dsCCS,
"tblCostCodeStructures") 'da and ds are the DataAdapter and DataSet, respectively.
dsCCS.AcceptChanges()
Now, this seems to work alright, but it doesn't seem to actually retrieve a primary key for the new record from SQL Server. This is important, because without a primary key there's no way to requery the DataGridView and tell it what the correct Foreign Key is for whatever new records a user may create. I know the code is writing the record, because I can open SQL Server and see the new record, and I can close the form and re-open it to see and edit the new record just fine.
However, I need a way for the new record to be immediately available. Obviously, closing and re-opening a form every time the user adds a new record is not going to work! How can I make it so that as soon as the user creates a new record, that record is submitted to SQL Server, the dataset updated, and the form updated so that I have the new Primary Key field available?
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Jul 28, 2009
I need to move to a specific record. BindingSoucre has MoveFirst, Last, Next and Previuos. It has Find but you can't specify which field to Find in.
What I need is something like the Filter except I just need to move to a particular record based on the value of the primary key.
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Sep 25, 2008
I have a problem with bound controls and a bindingsource. I'm using vb 2008 and .net 2.0.I have a few text boxes bound to columns in the binding source.The backend is a Access database.
I'm using a bindingnavigator to add a new record.The additem event works fine.If the user clicks an icon to cancel edit, the code executes bindingsource.canceledit. This seems to work fine. The row count on the navigator returns to the correct number before the addnew event occurred. However, the bindingsource seems to have an empty record in it. As the bindingsource navigates, it eventually gets to the empty record depending on where it's position was when the addnew event fired.
The error received is an invalidcastexception. This error occurs because the record is repostionedand each time this occurs the code performs calculations using values from the bound controls.But when it navigates to the empty record, the values in the bound controls are null.Is there other code besides canceledit to remove the empty record?
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Mar 21, 2012
I have a BindingSource1 and a DataGridView1.
[Code]...
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Sep 14, 2011
I have a form with a parent bindingsource showing details and a child bindingsource showing the multiple line items in a dgv. This relationship has the properties set to enforce the constraints and cascade the updates and deletes. When I add a new parent record there is a function for inserting default line items into the child. I have this code fr deleting a record,
[Code]...
edit: jmc posted a nice solution to this problem in the code bank just recently but I could not get it to work in 2005, this line, "AddHandler Me.LOTBindingSource.Adapter.RowUpdated, AddressOf parentAdapter_RowUpdated" throws an error. It say "Adapter is not a member of the System.windows.forms.bindingsource.
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Apr 18, 2009
I hav a web service which pull records from a database and I am hosting these services in IIS which works fine but I am trying to retrieve the record and display the record in a listbox displaying the time field as the text for that record.I have created the following function
public sub get_data()
dim dt as new data.dataTable
dim service as ws webservice.webservice
[code]...
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Aug 9, 2010
I am trying to check a record in database before inerting a new record here is my code but problem is when i enter a names first alphabet it imediatly populate massage. i want to check it after entering whole name
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Try
Dim cnString As String = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" &
[CODE]...
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Mar 25, 2012
I am currently iterating through a loop and redimensionalising my array every time I need to add a value (as you can imagine this takes some time for a redim every loop) is there a way I can implement a push similar to ruby or java? This would need to save the processing time needed to redimensionalise the array every time I need to add a value to it.
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Feb 24, 2012
In my inventory mobile application , i use RDA.using the mobile device ,i update only the Barcode of a particular Item which is in the Item Master(.sdf file). then I push the tables to the SQL Server.there is a web application handles all the other functionality , including Item Master Changes.for and eg.
(1) I pull the Item master to the Mobile Device.
(2)change the Item Name from the Web application.(NOT FROM DEVICE)
(3)Update Bar code from the Device
(4)push table from mobile Device to SQL Server.
In this situation Old Item Name is replaced.My need is only to update the Barcode.
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Apr 19, 2012
sub main()
dim menuhistory as stack(of menu)
dim currentmenu as menu
dim apple as new menu("fruit")
[code]....
I'm trying to create a stack of menus so I can navigate forward and back between different menus, however when I get down the push line to push my menu onto the stack I get the following error:"NullReferenceException was unhandled: Object reference not set to an instance of an object.". I'm unsure what the problem is as I am trying to push an object onto my stack, a menu object. The same error occurs even if I change the object I am trying to push directly to apple as well.
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Jan 9, 2009
I have a Class that is creating a large dataset (over 32,000 records) on the fly. I want to take the dataset and import it directly into SQL Server 2005 but I have not been able to find anything in ADO that allows me to do that all in one chunk. Doing a search I found some people in a similar situation that have exported the dataset to an XML file and then imported into SQL Server, which seems like a long way to go just to get something done that I would think would be part of ADO.Net.
However, for lack of a better option, I went a head and created the XML file but now I am having problems getting it to import into SQL Server so before I lose another day of productivity I am goin to ask a question.Is there a way to insert a dataset directly into SQL Server without going to a file first (even if I have to do it one row at a time)?
[Code]...
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Jan 8, 2012
I am using following code to push my document to Sql server my problem is each time I push document to sql server. The sql server using memory is increasing never clear the memory. How to clear sql sever using memory after push my document?
Public Sub StoreFile(ByVal sFilePath As String, ByVal ImageId As Integer)
Dim SqlCom As SqlCommand
Dim imageData As Byte()
Dim sFileName As String
Dim qry As String
[Code] .....
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Feb 17, 2009
I would like to know if it is possible to do a push install with a given MSI file using WMI where I know the credentials of the remote system(s) in VB...I have this so
[Code]...
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Nov 13, 2010
I've built an IPv4 Header/Datagram implementation and a TCP Header/Datagram implementation - I can verify that all my code is fine (checksums computed right, < 8bit values computed right, etc).
When I try to use System.Net.Sockets and I specify any ProtocolType (including Unknown), the Socket simply refuses to send any datagram where the Protocol Field value in the IPv4 Header doesn't precisely match the ProtocolType. No error or exception is thrown; the socket simply doesn't perform the send.
This means I can't use a raw socket to send customized IP or TCP datagrams, which means I can't communicate with servers that have customized implementations of these basic protocols.
All I need is to push this raw data to the network. I'm not married to System.Net.Sockets - be happy to just shove my data on the network, since the packet headers are fine.
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Oct 10, 2009
I'm making kind of home autmation system with a usb interface card.8 digital & 8 analog inputs and 8 digital & 8 analog outputs.The status of the inputs is refreshed with a timer.tick and written to variable.Now the problem.I want to make an digital output active when a button(real button, not a switch) is pushed and when it is pushed again the output should be set to non active.
action() is called every timer.tick
StatusDigInput1 = status of digital input =true when pushing button
StatusDigOutput1 = status used for displaying output status
[code]....
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Oct 4, 2009
I was trying to make it so I push a button then a picture pops up, and I can't seem to make it work.
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Jun 17, 2009
how to push data into crystal report?
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Aug 18, 2010
ive been trying to make a application that saves some information from two textfields into a textfile at a fixed location, without any peior confirmation. This is my own best bid. But it says that the Hula string is not a member of a string.
[Code]....
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Jun 12, 2010
i have a ritch textbox and i wanna if some one selecta text and push the button (sorry i don't know the name in english for this in french :indice et exposant like in microsoft word) like this in the image with color red
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Mar 23, 2009
I have created the following piece of code to try and see if the user pushes the 'f1' key, and if they do.
[Code]...
I am not sure if this code works yet because the keypressed event is not triggered when I push a key. Could someone tell me how I can change my code so that it will test what key is pressed, no matter what control on the form has focus?
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Dec 30, 2010
I'm very confusing about this code .When push Button1 ,the code not working
[Code]...
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Jul 19, 2010
I have a website where people do the data entry. I have data stored in SQL server.Now I need to push the data to 3rd party to do some analysis work.What are my options to do this kind of job?
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May 6, 2009
When you push a button, i want to make that a text will come in a richtextbox. etc., when you push the button, "hello, my name is NAME" will appear in the richtextbox.
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Apr 20, 2009
Im trying finish my Chat room and I just need to know how to make it send when they push enter so they dont have to click the button.How would I make it send Whats in textbox1 when they push enter?
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Feb 2, 2011
Well, the title says it all this time. After I click "yes" on a msgbox,I want to launch the Windows Logon Screen that I can normally launch by pushing Ctrl+Alt+Delete, so how would I do this programatically, or if there's any way to launch that Windows Logon Screen I wouldn't mind.
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Jul 12, 2011
So I need to make a windows form where it has a button to push and a label. There needs to be a list of 10 words/phrases. And when the button is pushed a random word/phrase is put into the text of the label. I have a section of code/psudo code but it keeps saying I am missing declarations when I try to run the program in debug...
Public Class Form1
'to make the list of different hello world languages
Dim strHello(0 To 6) As String
Dim blDimensioned As Boolean
Dim strText As String
[Code] .....
The errors all seem to be declarations for the lines of the array (strHello(x) = "xxxxx xxxxx")... What declaration am I missing? and how do I make the list give a random response to change the label text?
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Jan 29, 2011
I want to make an application that can push ads (website) to client..
Here is the case : Client try to connect to internet via wifi. Once the client is connected, server send a website address to client, and a popup (website sent by server) will appear in the client's computer in default browser.
I can list all IP connected to server, but i don't know how to push the website to client
Here is the code to list all IP connected to server : (import System.Net library)
String strHostName = "";
if(args == null || args.Length == 0){
strHostName = Dns.GetHostName();
[Code]....
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May 14, 2011
I'm supposed to create a linked list and add/remove items with a push/pop. Currently I can only push 2 items and pop one before it stops, and I'm not sure what I need to do to fix that.
[Code]...
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Mar 13, 2012
How do I get a new window to open with this button push displaying the link. Here is my code. This seems to open the browser in form 5 and however still navigates in current form webbrowser.
Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click
Dim myElement As HtmlElement = WebBrowser1.Document.ActiveElement
Dim target As String = myElement.GetAttribute("href")
[CODE]...
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Mar 15, 2012
I have a form with a text box and a form with a list box. I would like to be able to push a button on the form with the text box and have it be added to a list box.
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