no beating around the bush, here's the code.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim myXMLFile As String = Application.StartupPath & "creditors.xml"
[code].....
I've got a couple of drop down lists for languages. I bind them to a language list that comes from a query. Then the fields are also bound to the row in the DB they relate to. I have several panels with the language drop down - each "tied" to a different table in my DB. When I call up different records on the same panel the drop downs immediately "set to the position" of that rows language in the list. But when I call up another panel - tied to another database table - I see that language in the drop down.
[Code]...
I need some help with this project I'm trying to get my program to load and save data to an online database and I haven't been able to find anything that helps me to much, I have the working code for a local database but this program will be being used to multiple people for our business I want everybody to be able to add data, delete data, and such as necessary...
Here is the code i have for opening the file on my local machine
Dim con As New OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|data.mdb;")
but i can't get it to open from my webpage
what I am trying to do is get a program to load data from a text file with multiple lines in the form "Name, Type, Stocklvl, Price, Location, Reorderlvl" then display it all in a data grid. From where it can be viewed and edited as well as saved back into the original file stock.txt as well as generating a separate file reorder.txt which includes data on what needs to be reordered and the date which updates on program exit. I have chosen to use datagridview something I'm unfamiliar with as I figure It'd probably be the most functional to meet my needs of displaying a lot of data clearly as much as 200 items.
View 22 RepliesI currently have a main page called "ShowFrames.php" that has this html code in it:
[Code]...
I have loaded "ShowFrames.php" onto my WebBrowser1 control and it loads both of the frames onto the webbrowser control. Now my question is, how can I get the source of either of the iframes WITHOUT loading that frame by itself? For instance, when you load 2 frames on a screen in Firefox, it lets you right click on it, and select "This Frame" > "View Source" so you can view the sources separately. Can anyone tell me how I can duplicate this and put the source in variable strSource? I know that to get source code for a page, you need this WebBrowser1.Document.Body.InnerHtml But I dont know where to go from there in order to get a specific iframe's source.
I am quite new to VB.NET and I am attempting to create a console application that can write, save, load and edit sets of data. Lets say I have something like this:
[Code]...
However, I have no idea how to load the data so I can manipulate it in the EMPLOYEE structure system. I am not sure if I have made my question clear enough, for as you can see I'm quite new to programming and am not essentially familiar with the terms of speech.
Is it possible to create a kinda virtual storage in a vb application so that data created during run time are stored right in the applicaion instead of its environment?
View 11 RepliesI keep getting an IOException, because the file is apparently already in use. I'm pretty sure I closed every handle, and I don't know what to do.
High-Score
If haswon Then
Dim strFormat As New StringFormat()
[code]....
Ok, as you can see I am totaly new with Visual Basic. I have learned all those loops, if&else statements, byval, byref and etc. But now, I want to create this kind of application. I have 3 textboxes. One will contain URL, second username, and last password. There is a listbox also and a button. I want when user add a values inside textboxes , that values go to listbox as one variable and then save those settings for user so when he start up application again there are saved variables inside listbox. I just dont know how to do that.
View 11 RepliesHow do i fill my ObservableCollection(of Monitors) with data so that I can save it in an MVVM friendly manner. I normally use a FileNumber to load a DataSet using a DataAdapter and pass the monitors table via monitorDT - should I be loading it differently? How do I save the changes? Right now I have the following for loading data:
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How do i fill my ObservableCollection(of Monitors) with data so that I can save it in an MVVM friendly manner. I normally use a FileNumber to load a DataSet using a DataAdapter and pass the monitors table via monitorDT - should I be loading it differently? How do I save the changes?Right now I have the following for loading data:
Public Class Monitors
Inherits ObservableCollection(Of Monitor)
Public Shared Function LoadMonitors(ByVal monitorDT As DataTable) As Monitors
[code]....
1) How can I load data from Text file to DatagridView. I want it because I'm making a listener. And when I load a data from text file, i want to edit rows. And this calling the second question.
2) How can I save data, Datagrid to Text file.
I found a code
Dim obj_oledb_da As System.Data.Odbc.OdbcDataAdapter
Public Function ConnectCSV1(ByVal filetable As String) As DataSet
Dim dataSet As New DataSet
[Code] .....
I can load data with this code but I can't save.
My Text File must be like this:
#IP
127.0.0.1 localhost
Currently I am saving data from my applications by saving a text file via a stream reader as a string. I have come to a problem. In my current application, I have an array of the following structure:
[Code]...
I'm currently working on a data entry application in VB.NET and I'm using data-bound controls by simply dragging the table from the Data Sources window onto the form. It's my first time doing this, but this will save me quite a bit of time since this table has plenty of fieldsAnyway, my problem is that when I enter an invalid value in a textbox and then delete the text it won't let me select other controls or even close the form!
For example, say I have an Age field in the DB, which is an int and I mistakenly type "," on its textbox. Then I decide I actually want to leave that field blank (considering it allows nulls) so I just delete all of the textbox's contents, after doing so, I'm not able to switch focus to another control or close the form.
[EDIT: I've found the problem.] So if I have a checkedlistbox and put some random values in it, I can just retrieve the values like so:
[Code]...
I've got lots of textboxes and such bound to a BINDING SOURCE - the datasource of the CASEFILEBS is set like this:
[Code]...
Seems "data saving" is not always being consistently done - sometimes a field change never makes it into the underlying datatable - sometimes certain field changes never make it to the DB. I believe I'm doing something fundamentally wrong that when fixed will clear up some of these issues.
how to use the VS 2010 IDE tools in a way the Microsofties didn't specifically intend. But since this is something I immediately tried without success.
I have defined a .NET 4.0 WPF Application project with a simple class that looks like this:
Public Class Class1
Public Property One As String = "OneString"
Public Property Two As String = "TwoString"
[Code]....
The expected result was that "OneString" would appear next to "One" and "TwoString" next to "Two" in the running window.
The question is: Why didn't this work? What will work instead? If I put bindings in a DataTemplate, it works. Blend, with its sample data stuff, implied that this should work, but it doesn't.
an application i developed using vb 2008 express, to fill a web form with data from an access database, one after another when a button is clicked hasn't given me what i expected. the loop was suposed to stop after filling web form with the first data on clicking a button and continue to fill the webform with the next(2nd) data from the database on clicking the button again. Below is the code i wrote
Private
Sub STARTButton_Click(ByVal
sender As System.Object,
ByVal e
[Code]....
I've got a textbox on a screen - RateHr_3.
I'm binding it like this
If TypeOf ctl Is TextBox Then
Dim txt As TextBox = TryCast(ctl, TextBox)
If txt.Tag IsNot Nothing Then
[CODE]...
Now - here's the really odd part! See the attached image. I call up a vendor - go to change the LANGUAGE FROM (Finnish) to another language - when I leave the DROP DOWN for LANGUAGE FROM it puts garbage in the RateHr_3 field. It actually fills the field with "System.Data.DataRowView" - as you can see in the bottom piece of the attached image.I'm having a really hard time debugging this - How do you put a watch on a textbox in VS2008?
I'm trying to resize any image fields in my data-bound DataGridView to 200x300; the column resizing code looks like this:
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I have a datagridview created for my windows form using 2005 and I'm debating which would be the best way to allow my users to save the records.
The datagridview contains a Delete Checkbox so if that's checked, I need to delete the record. They will never be inserting new records - just updating or deleting them.
Do you think it's best to give them a Save button and when it's clicked, save the records; or rather, have it auto-save after each modification. I'm not sure how this would work in conjunction with my Delete checkbox though.
Most of the VB.net windows application I have created so far have been working off a local server. To add a data source I click Add New Data Source and then database and then connect to the database by linking through an ODBC driver. This works neatly and places data sets that I can then pull onto forms in various formats, DGV's textbox, Combobox etc.
The application I am trying to build now links to a hosted server on the internet. For security reasons I cannot create an ODBC that connects to the database. I can use a ADO connection string and this is fine for various tasks and I know I can populate a DGV using this connection. However, it is much quicker once I have dataset that I can repeatley call on.
how to use datagridview. im gonna show some of my code for the connection and datagridview display
Public Class Form1
Dim con As New OleDb.OleDbConnection
Dim dbProvider As String
Dim dbSource As String
[code]....
i want to display in a textfield the first name based on where is selected after i clicked Button1, how do i do this?
I'm making an autotyper/spambot, these may seem wrong to a few or most of you but it's a $50 bet to me. But anyway, I have the controls on form 1, (TextBox1 + Start + Stop (user input), ComboBox1 + Start + Stop (For pre-defined input.)) and the pre-defined text on form2. But I have a problem with the combo box reading the data on form 2.
Example:
On timer2_tick
Sendkeys.Send(Form2.textbox1.text)
I am trying to retrieve data row by row from my SQL Server and load them into my respective textboxes, I was doing the below code but of course it doesn't work as the For Each loop will load every single textboxes with each data retrieved, ran out of ideas.
Private Sub retrieve_Data()
Dim con As New SqlConnection
Dim cmd As New SqlCommand
[Code]....
[edit]oops - stupid typo - this is resolved and explained in the next post[/edit] I've got a BINDING SOURCE - that I bind to controls - textboxes mostly. I create a row in the datatable behind this BINDING SOURCE like this.
[Code]...
I am wondering if anyone else has experienced any issues with adding a data source to a VB.NET 2010 solution using the 'Add New Data Source' wizard. I am getting a very odd behavior when i add the data source, I see a .xsd file is added in my solution explorer but I do not get a data source listed in the data source view. In short, it will add a dataset to the project but will not add an entry in the project data sources. I realize I can code to get the same results but purely out of convenience I would much prefer to just use the wizard and the corresponding table adapters it generates as I always did.
By the way, a google search shows that many people had similar issues in the 2005 version but their issues involved trying to use special characters in the project path (i.e. 'C:My ProjectsR & DMy Tool. I do not use any special characters in my project paths and yet am still experiencing this issue.
rewriting a class I use for saving Treeview data to a XML file for use of saving ListView data I can't really figure out the rewrite, I'm stucked, unfortunately Listviews seems to be a big problem for me in general.
Option Strict On
''' <summary>
''' The TreeViewDataAccess class allows the nodes within a TreeView to be
''' persisted to xml for later retrevial.
''' </summary>
[Code]....
im trying to add a new data source to my visual studio 2010 project. As it stands my project consists of a few windows forms. I plan on making it access a database (made in access, unless this is a problem), and be able to perform pre-set queries, search/sort, and basic delete,add,edit functions. I will hopefully be later adding the function to print reports according to the database entries.However, the problem i am having is that when i go on to data sources, and click add new source, the following happens:3, it asks me which connection i will be using, i click new connection, then in the new connection dialog i choose the following : Microsoft Access Database File (OLE DB), then i browse for the database i made in the 'database file name' box, Then i delete the default username in the log in to database bit, as my database has no protection.
View 3 RepliesI need to connect to an MySQL database in my VB.NET application (VB 2010 Express). When I attempt to use the Data Sources wizard to establish the connection, it does not provide an ODBC data source. I'm using Add New Data Source/Database/DataSet/New Connection which shows the Add Connection dialog. The only options it gives me for data sources are Access & SQL Server and the OLEDB data provider. It does not appear to give me the option of adding a new data source provider. Attached is an image of my current Change Data Source dialog. Where do I get the ODBC data source provider and how do I install it into Visual Studio?
View 3 Replies