I'm working on a program that allows me to quickly write database entries. There are 123 columns, almost all of them I'm not using right now so I figured I'd write a program to speed up the process of adding entries to the database.The problem I'm having is exporting every row in a DataGridView to a .sql file. I'm able to do it with a single row but I'm having trouble with doing it for all rows. Every time I get a index out of range exception.I can't figure out why. The problem is probably obvious, but I need a fresh set of eyes to figure it out.In order for it to streamwrite each line it first collects all the data from the columns by using a loop then it writes it, clears the string and starts on the next row, looping for all the data, so on and so forth.
Private Sub StreamAll(ByVal table as String)
Dim TotalRows As Integer = DataGridView1.Rows.GetRowCount(DataGridViewElementStates.Visible)
Dim CurrentRow As Integer = 1
I am trying to print (to a text file) the fragmentation information give by Win32_Volume class using the DefragAnalysis method and have come up with the following VB.NET code:
Dim objReader As StreamWriter objReader = New StreamWriter(FolderBrowserDialog.SelectedPath + "FragInfo" + "_" + CreationDate + ".txt") Dim colItemsFragInfo As New ManagementObjectSearcher("rootCIMV2", "Select * from Win32_Volume where DriveType = 3")
[code]....
You do not need to defragment this volume.However executing this in Visual Studio returns the below:
Volume size: MB Cluster size: MB
You do not need to defragment this volume.The point here is though it does NOT work under Windows Server 2008 R2, but does work under Windows Server 2003 (when executed in Visual Studio), WMI Code will work regardless of platform.
NB: i have played with the "Console.WriteLine" and changed it to "Debug.WriteLine" to output value to immediate window.
I have tried running this codes over and over again but i dont seem to be getting any progress, the output is not complete. Its supposed to Display the first Letter of the First name then the secondname followed by the phone no and if a client has more than one record to list down all their records
Private Sub btnSearchrecord_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearchrecord.Click 'Retrieve a client from the record Dim Message As String
I'm sure there is probably a better way and certainly a more correct way to do with. But, right now when I output to the listbox, I'm only getting the information from the last item in the array.
Public Class frmInvoice Structure Invoice Dim intNumber As Integer Dim strTitle As String Dim strDescription As String
I am stuck on trying to get the sum of numbers to output to a label. I have a label box lblTcost that I would like to have the total of my list box lstCost placed into there. I have tried several things and keeps crashing or just not working at that part. I have used the debugger but since I know the line is wrong any ways that not helping. I though this line would work lblTcost.Text = lstCost.ToString("c") was the proper way but it isn't. Here is my completed code
Public Class Form1 Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click 'Declare values from both listboxes Dim Day, Fee, Stay, Total As Integer
I have a combo box that has multiple options, when the user selects one of the options (world wide city destinations) a specific value is assigned to a variable. For example if "New York" is selected the variable "x" is assigned the number 155. What I want to do is output the destination that has been selected ie "New York" in a label called "lblOutput1", do I need to store the destination as a seperate variable to be able to produce it in this label as I cannot seem to get it to work:
At the moment I am using:
lblOutput1.Text = "bla bla bla " + cmbDestination.SelectedText + " bla bla bla " + Today()
I've ported a page from classic ASP to ASP.net. Part of what happens in this page is that a collection of custom types is generated and then displayed via Response.Write() commands. I'd like to get the business logic separated out into a code behind file (and maybe move this all into a user control), but I can't seem to figure out how I'd actually display the collection once it's been generated. I want to specify a master page here, too, so the code can't stay inline. Here's a very stripped down version of the current code:
I have made this code, which is to update the MySQL db, the only problem is that even though i got try on, it dosnt catch any erorrs, and the code is not working, meaning it dosn't update anything in the db.
code: Private Sub updateSqlData() Dim nSQL As String
I have a number of textboxes in my program, and a few other controls with text in them.I want to loop through a select number of textboxes (1-10 in this case, for testing), and output their combined data into a string.Here is what I created, with the help of someone on this forum earlier.[code].....
I have a program with a lot of textboxes.They are all named Textbox[numbers].I have 39 textboxes.I want to take the text of textboxes 1-26, in order, and output their text into the clipboard, with a loop.I do not know how to make it so it only loops through 1 - 26, and make it not include 27 - 39.
How would I go about outputting a listview control with 4 columns and x amount of rows to a text file so that it can be printed? Or how would I go about adding it to a database and printing it?
It's been a while since I have posted. Good to be back. I am doing some scripting work using Visual Studio 2005 Tools for application. I am having an issue outputting to the debug window. My line of System.Diagnostics.Debug.WriteLine("Test") I have the output window open when I start debugging and am using the debugger. What happens is the debug window seems to go away when I allow the line to execute. After the line executes if I go back to the output window nothing is there. The message does not go to the Immediate window either.
I have conquered the problem of the database however what i need is the serial port data sent to a database and outputted on screen however i keep getting cross thread errors ..
Imports System.Data.OleDb Imports System Imports System.ComponentModel Imports System.Threading
Ia want to show text in a multi-line textbox, but my problem is how do I start a new line when using code like so.. TxtBox_TechTalk.Text = " Good Effort.. You Got " & Lbl_TotalMark.Text & " Lets try the next test. Click the Subtraction Test button to move on. "
Some codes here on how could I validate my datagridview? I mean, a certain column on my datagridview should accept integers only, otherwise, it will return a messagebox. Kindly include on which event it should be posted.
I have a DataGridView (dgv) on a Windows form (VB.NET) which is bound to a datatable. One of the bound columns is a an ID (Foreign Key) to another datatable. All I want to do is Hide the ID column and populate an unbound column with the Name (ParmName) for the user. I searched the foreign value in the datatable and retrieved the information. I set the Value of the cell in the Datarow. All works well, but does not display. The cell accepts the value...I can even Debug.Print the values to the console. They are there just nothing displaying in DataGridView. Nothing odd about DataGridView. Should be straight forward...
My Code , Dim dtParm As DataTable = MyDataSet.tblParameter Dim dgv As DataGridView = Me.dgvResultNum_DataGrid
I have a few classes, one is a form, the other is the source of the datagridview. I want to be able to sort the columns of the datagridview by clicking on the header. Here are the classes that I am dealing with:
Imports DiscoveryByte.AddTools.Misc_Tools Public Class ViewDiscoveryFlashCards Private DBBindingSource As New BindingSource
I want to see if anyone has used one table that has a primary key (not displayed) in the DataGridView. Then use a text box on the same form to call and group what if viewed in the DataGridView table. I want to group the displayed data of the DataGridView by the primary key of both tables.
I have several problems with rows in a DataGridView. Background information: The DataGridView (DataGridViewCalib) is in one TabPage of a TabControl, some columns of the DataGridView are automatically DataGridViewCheckBoxColumn as the DataSource have some colums which are Boolean. This is a Windows Form written in VB.Net with Visual Studio 2008. The user loads an input data file.
The problems:
1) At first arrival in the TabPage, ShowDataGridViewCalib (code below) is called. All rows are then shown in the DataGridView, despite the code saying that some rows should not be visible. Breakpoints in the code show that the code do arrive at the Rows.Visible = False events. Despite all rows beeing shown a Watch in the debugger shows that:
[code]...
There are two alternative ways of handling the rows in the code. The first attempt (commented away here) is probably the "nicest".
Using VB.NET 2008. Am using Datagridview in my application, Datagridview should display according to the windows screen size, Before I used vb6
code.
Private Sub Form_Resize() On Error Resume Next
[CODE]............
Am new to vb.net, How to set a datagridview size according to windows screen size, In Datagridview property itself any option is available or i have to make a code as like vb. If i have to make a code, how to give form_resize in vb.net.
I am using VS2008 and I have a form which has a datagridview. This is for an invoice where I already have the user select the customer from a details view and want to have the items in the datagridview change based on what the customer selected. Then when the item is selected I want to have the price change accordingly. So far I have the customer selction as well as the item combobox(not limited to cust items yet) appear, but I cannot figure out how to get the join of the 2 items (cust+item as the price varies from cust to cust) to change the price. Question is, is it possible to do this in the same datagridview, or should i try to just break this down some other way?
I have a DataGridView where Cell_Validating is being done. I have a Cancel button on my form that allows the user to exit out of the DataGridView changes. The problem is that if a cell was currently flagged as in error, I cannot exit and remove columns from the DataGridView. I get the following error: Operation did not succeed because the program cannot commit or quit a cell value change. Is there a way to cancel the validation once the focus has been removed from the DataGridView? Here is my Cell_Validating
In VB.NET 2008 I've two forms 1 & 2 containing two datagridviews connected to two data source 'ACCESS 2007 tables' Now I want to select multiple rows from one datagridview (form1) & transferring these to another empty datagridview (form2) with a button_click.
I have 2 forms, each one with a datagridview.I want to transfer all the DataGridView Rows from From2 to another DataGridView of Form1. but it's not possible.
If using a datagridview to update a database and the datagridview is bound to a bindingsource which has its datasource as the table to be updated: where dshould you place the tableadapter.update(mydatarow)
I am making a simple program.. i have a Form named frmmain that contained datagridview control named DataGridView1.. and another form named frminsert that contains two textbox controls named txtFname and txtLname and Button control named btinsert.. I want to pass the value from txtFname to the Datagridview column1 and the value of txtLname to the Datagridview column2 when I click the btinsert.
