VS 2010 Loading And Saving To .txt From Datagridview?
May 9, 2012
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.
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Aug 22, 2010
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
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Sep 12, 2011
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
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Apr 16, 2012
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.
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Oct 27, 2009
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].....
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Oct 31, 2011
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?
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Apr 7, 2011
Essentially what I'm trying to do is to save the value of a string() to a cell in the datagrid view. The problem is that when I close the program and reopen it the changed value isn't there... It's not saving properly.
Here is my code.
Dim BOCHURSTOTAL As Double = ((BochurimBindingSource.Current("Give_To_Bochur_Quant") * (bochurpr)) + _
(BochurimBindingSource.Current("Reg_Quant") * (regularpr)) + _
(BochurimBindingSource.Current("Priv1_Quant") * (private1pr)) + _
(BochurimBindingSource.Current("Priv2_Quant") * (private2pr)) + _
(BochurimBindingSource.Current("Priv3_Quant") * (private3pr)))
DataGridView1.CurrentRow.Cells("DGV1TotalColumn").Value = BOCHURSTOTAL
Me.Validate()
Me.BochurimBindingSource.EndEdit()
Me.BochurimTableAdapter.Update(Me.PuterDataSet.Bochurim)
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Oct 24, 2011
I have a MS Access database file that I can view with a DataGridView, but I can not save the changes made. User should be able to modify data, and when pressing the "Save" button, these changes should be reflected on the database. That is not happening.I know this is a common question, but I have read dozens of pages trying yo get this to work.
Imports System.Data.OleDb
Public Class Form1
Dim con1 As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=T:JaimeTest.mdb;Persist Security Info=False")
Dim sql As String = "SELECT * FROM Table1"
[code]....
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Jun 9, 2011
I have a DataGridView which contains a hidden column. On the BindNavigator SaveItem_Click event i need to populate the hidden column cell with the current date. I tried using the DefaultValuesNeeded event but it did not work out.
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Jan 14, 2012
I have a rather straightforward question.How to I get a DataGrid in WPF to save/load raw XML files and have the ability to display/edit them with other controls? The application will only work offline so I won't need SQL. Just simply open, edit and save data to XML.
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Feb 8, 2012
I am attempting to create a program that users can create "cards" that have user inputted data. There are textboxes for each field such as Name, Location, Description, etc What is the best way to save and load this information?
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Jul 4, 2010
I'm making a log for my application.I have made the log and it works.I use the streamreader and the streamwriter to save and load the data. I thought that it would be more organized to have columns inside the log.The problem is how will i save the information to the text file and load it up again so that it could organize itself again. The code that i used to make the columns.
log.Columns.Add("Task performed ", CInt((log.Width - 4) * 0.3), HorizontalAlignment.Left)
log.Columns.Add("Time and date", CInt((log.Width - 4) * 0.2), HorizontalAlignment.Left)
log.Columns.Add(" Amount of detected files(s)", CInt((log.Width - 4) * 0.2), HorizontalAlignment.Left)
log.Columns.Add(" App version", CInt((log.Width - 4) * 0.4), HorizontalAlignment.Left)
The code that i use to add the information to the log.
[Code]...
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Aug 7, 2009
how to create a bitmap image of a specified size? then how to save and reload such a bitmap to and from a file?VB2005 starter
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Apr 5, 2012
I've been looking into the SaveFileDialog and OpenFileDialog features, but have been failing to implement them. The actualy program that I would be implementing this in is much larger, so alternative methods are welcomed.
[Code]...
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Jan 10, 2012
I'm looking to work on a project at work and I'm preparing to do my home screen of my program and I'm stuck on how to prep for all of this. I want to be able to save projects (and its not just one form that will be saved, 26 future forms to be exact), load projects, create new projects and view available projects to be selected from in the home screen. Really a very standard home screen when concerning professional programming. I'm not quite sure how to go about this or when looking ahead what might be a best practice. I haven't worked with databases, so my knowledge is limited.
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Aug 24, 2010
i want to save and load an array as and xml file. what is the easiers way to do so.
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Oct 30, 2008
like when i close a program, i want it to save its location (i guess to the registry, idk) and then when it loads, i want it to load back where it was.this is what i have so far. it saves to the registry ok, but it doesnt load where it should. also, my button1 click is what saves the location for now, but this code is just a test app for this.
Code:
Imports System.IO
Imports Microsoft.Win32
[code].....
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Jul 31, 2009
Using the Microsoft VB 2008 Express program, I'm making a SWd20 character sheet (D&D) to be distributed to a few friends. It's a program where the user can figure out stats, species, class, etc without having to make any calculations him/herself.. but this will all be in vain without saving it..
So I'd love to know how I could make it so the user can save and load the entire file(including buttons, labels, text boxes, menu strips, possibly multiple forms, etc) on his/her own computer.. Is this possible, and if so, how can I go about this?
I've already searched through and found lots on saving text in the files to .txt files, but that doesn't cover everything I need
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Aug 15, 2009
a member mentioned, xml is similar to a txt file. txt files, i can manipulate quite well. so, if this is the case, it should not be to complicated to do as the thread title describes . that, of course is, if you already know how to even create an xml file. i do not. any and all input/suggestions welcomed, links for xml noobing welcomed as well.
i like: VB General google fast cars username password
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Apr 2, 2012
I am doing a project for part of my coursework which involves the creation of a series circuit designer.
I am having some trouble with the saving and loading functions; I had intended to save them to a text file with commas separating the component name and the value (if any) attributed with it.
Grid(xcoord, ycoord, 0) contains the component name. Grid(xcoord, ycoord, 1) contains the attached value (resistance or voltage- components such as wires have a value here of 0)
Once the save button is pressed, the text file contains 50 rows of "0".
P.S. Let me know if any other parts of my program are required.
Dim comp(maxsize) as ccircuits[globally declared]
Const maxsize = 50
Structure ccircuits
[Code]....
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Dec 6, 2009
I am trying to Save a Form In My.Settings Then Be able to close the Application Then Open it and Have all the Forms. I need to Save and Load Multiple Forms At a time. I also need to be able to remove one of the saved forms when it is closed before the
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Oct 18, 2009
What would be the best way to load and save a multi-dimensional array (of bytes). I've looked through streamreader tutorials but it always seems to instructions on how to save strings. I also know there's a very easy way to save a one-dimensional array, but it doesn't work on multi-dimensional ones. What should I be reading up on?
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Feb 8, 2009
I want to load images into a picturebox, save them into a database and display them again in the picturebox. This is the code I'm actually having problem with:
Private Connection As String = _
"Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=C:UsersclientDocumentsVisual Studio 2008ProjectsSavingsLoansCalc.mdb"
rivate Sub UploadButton_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles UploadButton.Click
[Code] .....
I'm getting this error message:
"Type 'Connection' is not declared"
On this line:
oConn = New OleDb.OleDbConnection( _
New Connection().getConnectionString)
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Dec 28, 2010
How can I combine specialized string collections so that I can accomplish this :
-Save all the tab's texts from a tabcontrol
-Save contents of the tabs : eg.Every tab contains a label and I save the text of each label
And the real problem:
-Loading them when the program opens
I have made some thoughts about saving them, but not about loading them
setting.TabNames.Clear()
setting.TabLabels.Clear()
For Each item As TabPage In TabControl1.TabPages
Dim name As String = item.Text
setting.TabNames.Add(name)
[Code] .....
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Nov 29, 2008
I've got a textbox using a custom auto complete source, which gathers info from what the user has previously typed. Problem is, I can't figure out how to have that source saved when the application closes and loaded when the application opens.
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Jun 20, 2012
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.
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Sep 5, 2009
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?
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Jun 15, 2010
I'm trying to build a music player app. I want to have it set up so the user can choose your own background from picture files on your computer. The code I'm using to save the registry file is:
Private Sub MusicPlayerForm_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
My.Computer.Registry.SetValue _ (m_strKeyName, "BackgroundImage", Me.BackgroundImage)
End Sub
The file is saved and I can see it when I use the regedit. The problem I'm having is loading the file. Currently I have:
Private Sub MusicPlayerForm_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Timer1.Start()
LoadDefault()
[code]....
The error message I get is 'System.IO.FileNotFound Exception'. For some reason I don't think the files' getting read.
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Jan 18, 2009
I 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]....
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Jan 4, 2011
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:
[Code]...
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