ComboBox Update When New File Create?
Dec 5, 2009My Text Folder is "C: ext"If I m Past Any Text file in This Folder Then My ComboBox Update its Name I want only textfileDont Scared With My Silly Example.?
View 2 RepliesMy Text Folder is "C: ext"If I m Past Any Text file in This Folder Then My ComboBox Update its Name I want only textfileDont Scared With My Silly Example.?
View 2 RepliesHow do i create an update file for my existing application.
for example : i made an application that have 2 or 3 function which is lock or disable. when people want to unclock the function, they have to install or run updater application (in EXE). so how do i create this UPDATER application for unlock the function?.
I need to make a CRUD application using the XML and VB.net. How to create, write, read, update, delete the data only using XML file and VB.net.
View 10 RepliesI am creating a windows service to save current username and logon time in a CSV file. But when I install the service, the file is just created, not details are written to it, and that file is set to read-only mode. what is the problem in my code?
My code:
Imports System.IO
Imports System.Text
[code].....
Is there a way to update source combobox to printer combobox selection?So going from printer1 to printer2 the source will update according to what that printer has to offer.
View 8 RepliesI've been pondering upon my idea on how to create/update a text file using each item in a listbox as lines, but I fail each time. I've searched this forum as well as my friend, Google. Still nothing.
View 3 RepliesMy question is How can i create insert,update,delete query by using class file and store procedure. This query is use for 3 tier.
View 2 RepliesI fill my combobox cbx from an Access database as follows:
Public daOfficers As New OleDbDataAdapter, dsOfficers A New DataSet, dtOfficers As New DataTable
daOfficers.SelectCommand = New OleDbCommand("SELECT pID, [pName] & "", "" & [pPrename]
[code].....
I have inherited an application that uses telerik controls. This is my first time to work with it and I'm a little confused.I have a RadComboBox that has its values hard coded. When the user selects an item, a RadGrid is refreshed to show the records that correlate with the item the user selects from this combo box. This all works great.I'm trying to create link buttons, so that when the user clicks on one, the RadComboBox value is changed to whatever value I set it to in the codebeind page and the RadGrid is refreshed to show the appropriate records.I can set the value of the RadComboBox, and see what value it has when debugging, but the RadComboBox in the browser does not reflect the change and the RadGrid is not refreshed when I programatically execute the event handler for it.
View 1 RepliesI have a datagrid that is populated using a stored procedure. One of the columns is called LotNum which I would like to have as the combo box....this combo box should be populated by a table called CurrentLotNumbers, with the field LotNumber. My current coding is below. I am using windows forms and vs 2005. What do I need to add so the user can use this combo box, and do I need to add anything extra to my save button which saves the changes to the datagrid.
'POPULATE THE DATAGRID WITH THE CURRENT INVENTORY
Dim ReturnInventory As SqlCommand = InventoryConn.CreateCommand
ReturnInventory.CommandType = CommandType.StoreProcedure
[Code].....
How to update combobox values coming from a dataset if I change the connection string. The connection string takes effect but doesn't update the dataset tied to the combobox.
View 3 RepliesI have a bound combo box with employee profile names. I have two buttons: save and delete buttons.When I edit a selected profile, I hit save and automatically the change is reflected in the bound combo box, but when I hit delete or create new profile, I have to close the app and when I open it I see the changes in the bound combo box.The combobox.Refresh() no workThis is my code:
Private Sub deleteselectedprofile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_deleteprofile_oninsideprofiledittap1.Click
Dim mconn As New SqlConnection("Data Source=(local);Initial Catalog=epmapp_db;Integrated
[code].....
Im now creating an inventory system for my project.
i having difficulty with my project im using combobox to select data from database and i want to update the data. if i selected second row of the data it will update the first row of the data.
eg.
"comboboxitem_name" - red ball pen
- blue ball pen
- black ball pen
"quantitytextbox"- 100
"reorder_quantitytextbox"-20
when i selected the "blue ball pen" and fill the information that i want to update then press the submit button. the red ball pen will update with the information that i want to update to "blue ball pen" and the "red ball pen" will change it name to
"blue ball pen". and now i have two "blue ball pen", one with "red ball pen" information and the other one with original "blue ball pen" information.
I am working on a project that uses lots of custom class objects.Before starting work on real project, I tested the object behaviour on a temporary project. And find that if i add the object to a list and combobox and then make any change to the object property then it reflects in list and combobox.But after using the same process in real project the change does not reflect. how can i update object property placed in the combobox.for eg.Class X has property id and name created objX of type Class X and set id=1 and name='All' insert objX to combobox now, in the same form and in other function when i get objX from combobox and change name='None', then it does not reflect in combobox.
View 3 RepliesI am trying to update my database based on the selected values in two comboboxes.
Combobox1 = Manufacturers
Combobox2 = Orderlists
In the App the user selects a manufacturer and then an orderlist and then presses Ok button which updates the default orderlist for the manufacturer.I am having problems on buttonClick event which updates the data, just unsure of method, if somebody could even point me towards a good tutorial it would be great as I have searched high and low for one.
Code is as follows....
Imports System.Data
Imports System.Data.SqlClient
Public Class frmMain
[code]....
I had a functioning datagridview that was created from VB2010's datasource by clicking on a table, picking datagridview and dragging to a form. I changed three of the columns of the grid to comboboxes bound to different tables. If I change a value in a column (not a combobox column which still shows the value from the original table), I receive InvalidOperationException was unhandled on Me.TableAdapterManager.UpdateAll(Me.MasterDataDataSet). What code do I need to add if I change columns to comboboxes?
View 4 RepliesI'm doing small system using database 03. I had function to add data into a comboBox. When i add a new data into the the same field using another form, then back to the main Form the comboBox does not update the current data in database..
Codes i tried:
'Form Load
Private Sub FrmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[CODE]...
I have a datagridview with two columns a text box and a combo box. I can add to the combo box collection but can't determine how to remove part of a collection. Example combobox has 10 items as follows: 1,2,3,4,5,6,7,8,9,10.
I only want to show a number 1-10 when another label has the same associated number.I have 10 labels named 1-10 but I only want the combobox to display a number 1-10 when the corresponding label has been selected previously. So, if labels 1-5 have been selected by the user than I want to have my dgv combobox to display only 1-5 and remove 6-10. I have searched but have not been able to find a similar post.
I've made a windows form in which I can change names in my databasetable 'stations'. To select which station to change I've used a databound ComboBox which gets all stations from the database table.
Now when I change the name of a station I want to get it immediatly updated in my combobox without restarting the application.
Here is the code for the loading the combobox. I want to load the combobox with the Name of client. so that user can select the Name and then the details which are associated with that ClientName are to be displayed in the desired textboxes.
View 4 RepliesI want to know if there is a way to refresh a combo box when a new serial port becomes available.[code]
View 2 Repliestitle is a bit vague. Is there any way I can tell if it's the user or the code that's altered a combobox? I want certain things to happen when a combobox is updated, but I don't want them to happen when the code is altering the combobox at runtime, only when the user selects something out of them. Unfortunately, if I use the 'Selectedindexchanged' option that triggers when I change the contents in code too. I've tried disabled the combobox while I update it, but that doesn't seem to work. Any way to detect user input only? My combobox is drop-down only by the way, so it's only if they select an option - they can't type anything.
View 10 RepliesI have a combobox where the SelectedValue on the combo is bound to a property on a business object.Everything works fine, but the property that's bound to the SelectedValue on the combo only gets updated when the focus leaves the control. I understand that the property doesn't get updated until the control is validated (loses focus), but I need it to update the datasource as soon as the dropdown is closed.I know I could probably leave focus from the control on the DropDownClosed event but I'd prefer something a little less kludgy.What's the best way to immediately update my datasource when the dropdown is closed?
View 2 Repliesi have a login form that works ok. but i need to insert a textbox in it that has to be filled with the real username based on combobox selection. following the code for the login window. That code works OK.
Dim conn_login As SqlClient.SqlConnection
conn_login = New SqlClient.SqlConnection()
conn_login.ConnectionString = "Data Source=SQL;Initial Catalog=orcamento;Persist
[Codee].....
I have form in which I can change the name of stations in my database (SQL Server: in table Stations).To choose which station I want to edit I've used a combobox.What I want to happen now is that when I update a station, my ComboBox with stations immediatly gets updated with the edited station.
View 1 RepliesI have a content page which contains an UpdatePanel and has a combobox. When the combobox value is changed I want to change a label in my Master page. So, the main problem for me is that I don't want to make a full postback with every combobox value changing. Is there some trick to overcome full postback?
View 1 Repliesi am using one combobox and displaying all the emp name available in my database.i have one text box and one button .if i press on button one emp record will be deletes from mytable.then if i click on dropdownlist of combobox i want to display updated result how?
View 2 RepliesI am trying to use the combobox to update/edit/view the saved data (in contact form) from sql server.
My Load_Combobox (in contact form):
Private Sub Load_Combobox()
'Type
cboType.Items.Add("Director")
cboType.Items.Add("Principal")
cboType.Items.Add("Project Manager")
cboType.Items.Add("Technical Manager")
[Code] .....
The problem now is when I saved a record into sql server (EG Technical Manager) and try to view back the saved data, it always show the first item (Director) in combobox. But, my sql server has saved is "Technical Manager" for that saved record.
I've already found evidence of another having this problem. You can see this on this post by someone else:
http:groups.google...096b3fcaa?pli=1
The problem is that when one navigates the combobox via the keyboard, the combobox's information doesn't update. If you click a value with your mouse, though, everything works wonderfully. The link I've mentioned suggests changing the binding from the Text property to the SelectedItem property. I'm very deep into this project and it would be a bit of a nuisance to change the setup so as to allow it to be bound to the SelectedItem property.What I'm wondering is whether or not I can detect the user changing the selected entry in the combobox and tell VB that they "clicked" the value, if that makes any sense.
im trying to use the combobox to update/edit/view the saved data (in contact form) from sql server. my Load_Combobox (in contact form):
[Code]...