VS 2005 : How To Update The Listview
Sep 11, 2011
I already deleted the record in my database and my problem is How can I update my listview that i already deleted the selected item it wont delete in my listview i have no clue how to do it??can someone elp me with this. . . .
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
Dim SQL1 As String = "DELETE FROM Employee WHERE Employee_ID = '" & ListView1.SelectedItems(0).Text & "';"
Dim cmd As New MySqlCommand
Dim table As New DataTable
[code]....
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Aug 3, 2011
I'm trying to use a BackgroundWorker process to update the status on servers once a Refresh button is hit.add all ListViewItems to an ArrayList and pass that ArrayList to the worker process to update. Once it was done updating, I would clear all items from the ListView, and then refresh the ListView with the new ArrayList with the updated ListViewItems.When I get to this line of code in the RefreshListView function:
'POS_IP_ADDRESS is just a constant I created with the column index in the event I decide to change the layout of the list view columns at a later time
objItem.SubItems(POS_IP_ADDRESS).Text = strIPAddr
I get a InvalidOperationException stating Cross-thread operation not valid: Control lstStatus (my list view object) access from thread other than the thread it was created on.Do the ListViewItem objects have a tie back to the original ListView items when I pass the ListViewItems to the ArrayList? I just want to edit the objects in a buffer and refresh the ListView... does this make sense to do? Why can I not update the item in an ArrayList?
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Aug 27, 2009
I am trying to display the listview subitem in the Listview .Actual Problem Dispaly:I have to dispaly the three values :
BARcode CheckoutFlag TAGUID
L00657 Loo657 E00010003E
But ,I am getting the wrong display:
BARcode CheckoutFlag TAGUID
E00010003E Loo657 E00010003E
I am unable to print the barcode value.where ever Ia m able to display the Little value.The main two functions are below.
vb.net
Private Sub rfLoadtoList(ByVal iBarcode As String, ByVal iTitle As String, ByVal ImgIndex As Integer, ByVal bgColor As Color, ByVal frColor As Color, ByVal cFlag As Boolean)
Dim Srnumber As Integer
[code].....
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Jan 23, 2008
VB.NET 2005
Anyone has a quick way to copy a listview to a new listview?
It tried the following, but it crashes ..
Dim arrTemp(lvwTemp.Items.Count) As ListViewItem
lvwTemp.Items.CopyTo(arrTemp, 0)
lvwObjectsFound.Items.AddRange(arrTemp)
[Code].....
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Jul 21, 2009
I have listview with Items, i would like to update the informantion in one of the row in the listview.
[Code]...
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Feb 23, 2011
I have this subroutine and i pass 2 parameters. 1 the Printernum (it is the line that i want to change in my listview) 2 the returndata i want in the printernum line to add or update the txtonlyCounter in the 7 subitem.
[Code]...
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Aug 24, 2010
I had a form here with 3 texboxes, 1 combox and 2 dtpicker. When I tried to update my database with this code:
Dim cn As ADODB.Connection
Dim rst As ADODB.Recordset
Dim Con, sql As String
Dim i As Integer
Con = "Provider=Microsoft.jet.OLEDB.4.0;Data Source=C:NOSDE\_MDBNOSDatabase.mdb"
[Code] .....
All of my records has change. for example I have a 5 records of different people, I've pick the first record and update it, then after I've save it, the remaining 4 records change with the same name as I pick the first record.
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Mar 28, 2012
the GUI shows that (in the listview portion) when i click sa "save" button, the item/s in the listview will be updated to the "remaining stocks" (datagridview portion).
Here is my running code for that
Dim a As Integer
Dim y As Integer
Dim x As Integer
[Code].....
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Feb 27, 2012
I am using a Listview to update database. It works perfect for the first row in listview. How can I update my database if there is more then one row in listview?I have 6 columns in listview.
Listview Property changed to:
Hideselection = false
Multiselect = false
Fullrowselect = true
My Code:
For y = 0 To ListView1.Items.Count - 1
If (objcon.con.State = ConnectionState.Closed) Then objcon.con.Open()
cmd1 = New OleDbCommand("UPDATE Customers SET " & _
[code].....
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Jun 26, 2009
I load a bunch of files into a wpf listview and want to update the content of the listviewitems after loading the files, eg:
1. load the files from a directory into the listview - that's okay
2. Start a background worker and replace the full filename with only the filename and extension on each listviewitem. How could i achieve this using dispatcher or background worker?
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Aug 30, 2010
i have a list view on my form and i'm having trouble on how to code to update the subitem on the listview.
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Nov 3, 2011
I have a 3rd windows form opened and I have 2 textboxes to add Username and Password as well as a button that says add account. Username is named as Email2 and Password is named as Pass2 and the button is addaccount2. The forms are named Form 1 Form 2 and Form 3. I have a listview in form2 that has columns with names and im trying to get it to when you fill in the info on Form3 the username and pass and click the Add account button it will put it in the listview box but I would like it to be so username would be under the username column and password to be under password column under Form2 in the listview.
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Dec 4, 2011
I'm having difficulty trying to figure out why I can't seem to update the data I selected from the listview. I keep getting an error saying 'Invalid column name'. Can anyone help to fix this issue? I've tried for hours, but can't figure it out. [code] It doesn't seem to update for the others.
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Jun 22, 2010
i have some problem with the listview control i dont know how to use it
[Code]...
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Mar 15, 2012
i am using a listview on my admin form to see those who are logged in. so i have a table which captures users logging in and logging out. this table data is reflected onto this listview. but i want the listview to refresh itself as soon as the user has logged out. this way the admin doesn't have to keep pressing refresh.so i want to know if there is way to refresh the listview on database update.
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Dec 14, 2011
I can't find a proper answer on how to update the ListView after I inserted another item. When I add ListView1.Clear() and DatabaseSelect() in Button1 there was nothing to view.
How do I refresh my ListView everytime I insert new items?
Here is the code of filling the ListView:
Function DatabaseSelect()
Try
myDA.SelectCommand = conn.CreateCommand()
[Code]....
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Feb 23, 2011
I have this subroutine and i pass 2 parameters.
1 the Printernum (it is the line that i want to change in my listview)
2 the returndata
i want in the printernum line to add or update the txtonlyCounter in the 7 subitem.
Dim txtCounterLength As Integer = Len(returndata)
For i = 1 To txtCounterLength
FindBlank = Mid(returndata, i, 1)
If FindBlank = " " Then
[code]....
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Jun 15, 2012
Environment = VB.NET 2005 & Pervasive SQL 9.5 ADO.NET In a simplified example, I have single database table (customers) with the columns "customer_code_PK" and "customer_name" This table is presented in VB.NET 2005 as a single form datagrid (bindingsource/dataset). In this example, the database table is populated with the following data
customer_code_PK customer_name
SHELLShell Oil
BPBritish Petrolium
MOBMobile
In very simplified terms, code does the following;
sub on form load
fill dataset with database records (select * from customers)
[code]....
The datagridview loads the records correctly.Here is the sequence of operations that produces the bizzar behaviour.In the editable datagrid;
1.remove the row with PK = MOB -> save_button -> Database correctly updates
2.add a new row with PK = KFC -> save_button -> Database correctly updates
3.remove row with PK = SHELL -> save_button -> Database exception occurs
On this last command, the row SHELL is INSERTED!!, not removed.However, If I change ths save_button routine to this
save_button
call generate_custom_updateinsertdeletecommands
bindingsource endedit
[code]....
It works correctly !Is it correct that you would need to "refresh" the sql update commands after every tableadapter.update?
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Aug 28, 2011
How to delete a record in the listview and will update to my database?[code]....
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Jul 1, 2011
I am trying to update a ListView control from 10 background worker progress. It is working well if there is only 1000 list in ListView control. But when the list is big then the update is not working properly. The different value is not updating the appropriate list index. Here is my partial code of worker progress:
Private Sub worker1_ProgressChanged(ByVal sender As Object, ByVal e As System.ComponentModel.ProgressChangedEventArgs) Handles worker1.ProgressChanged
SyncLock updmxresult
[Code]....
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Jun 19, 2012
right now i'm trying to google some related article about LINQ to better understand it. But I came across with this issue been googling to find some answer but I didn't get lucky so here my problem.
For Each lvItem As ListViewItem In lv_orderlist.Items
passSQL = "INSERT INTO t_selling_history (f_product_id_fk, f_qty, f_qty, f_user_id_fk, f_created_dt, f_trans_status)" _
[code].....
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Jun 23, 2012
Imagine you expand onto 'Sofas and armchairs' and click 'fabric sofas', it will redirect to next page on click and it will send data '10661' to the next page. Then the listview will updated with reference '10661'. After that click on another link, maybe leather sofas. The listview will re-update table with new reference '10662'
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Sep 5, 2011
I want to update my data in SQLSERVER with listview checkboxes. but how do I update those selected values?
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May 21, 2011
I have a listview which contains information. This information is retrived from database, 'till now ok. The problem is: I must update the existing items on listview and insert the new ones.
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Mar 28, 2012
Is there a way to auto-update a listview based on reading a column?
Requirements:
1) The code must make a call to a user-created "Private Sub" to recalculate
2) Update must be automatic. .SelectedItem or clicking a row will not work
3) The formula function cannot be included in Form_Load
I've got everything working if the user selects a row, then clicks an "update" button using .SelectedItem. But with my current program containing 200 rows, it's not feasible. Simply put, how would I go about updating a listview column (0 in this case) based off a call to a formula, then updating the row?
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Nov 25, 2011
I am doing project in vb.net using ms access I used listview to display data from table I want to display different context menu strip for different column I have done it using hard logic to get column number is as follows:
Private Function getClickedColumn(ByVal pListView As ListView, ByVal pMouseX As Integer) As Integer
Dim result As Integer = 0
[Code].....
Also i want to edit any cell of the listview & update its result to database .
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Nov 1, 2010
My listview clears and updates every 2seconds. Is there an easy to refresh the list information without clearing first? Like taskmanager
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Jul 23, 2009
I have a program that is reading and writing to certain memory addresses to a particular application exe...
So I have a listview control with 4 columns and X rows
| Name | Address | Type | Value |
Name: Is just an identifier so the user knows what it is.Address: Is a specific memory address (eg 0058AFA0).Type: Type of value stored in the address (eg, 4 Bytes, Float).Value: Value to store in the address.Im looking for a way to go through each row, take the address and use this to read the value at that address and then update the value on that row
[Code]...
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Apr 21, 2009
I associate the listview with the imagelist..Set property of listview SmallList to Imagelist..I want that on listview click. I get the icon name....But i m not getting how to get icon name..Mine code below--
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
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Jul 9, 2011
I am working on the listview that I have got two columns, the one that it goes for the images and the other one goes for the text data. I can extact the text data, but not for the images.
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