I worte this code can any body tell me why its not working Error can be seen in the attached file whis.... Value cannot be null. Parameter name : data source data base columns are : Itid , it name , it price my code whic is not working
Private Sub btnTotal_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnTotal.Click
Dim ConnectionString As String = "Integrated Security=SSPI; Persist Security Info=False; Initial Catalog=NewBase; Data Source=CP"
Dim conn As New SqlConnection(ConnectionString)
Is it possible to have a Textbox on a form that when the user inputs data, ( during Runtime )that data remains in the Textbox for good and the Textbox then becomes read only ? Is it also possible to make it so that the CD with the programme on, is in the PC when the programme is being used. Perhaps writing the Textbox data back onto the CD ?
I have setup a page in Excel with several textboxes for data entry. I would like to be able to tab from textbox to textbox so I can enter this data as quickly as possible.
I want when Push Button data from Excel(The next cell data) go to the next Line in Textbox.
Private Sub Button18_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button18.Click Me.TextBox1.Text = wshTest.Range("B2").Value
I am trying to click on certain rows in a datagridview and have the information in the rows sent to a textbox. It does not append each row to the textbox though, which is what I want it to do. it just replaces it with the row I click on. What's wrong with my code. I have tried cell click too.
Private Sub dgProducts_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles dgProducts.Click Dim i As Integer
I want it so every time I click an ITEM in the Listbox it displays ALL the data into the textbox. I know there's an easy way using table adapters and binding the listbox, but I'd prefer to do it this way for my project.
That code works to read the entry data and to recognise the correct data, and the incorrect. However, even if entry is correct, the error msgbox will appear (x times of how many records there are in file), despite being navigated to the menu. Anyway that the Else isn't triggered when data is correct. Also for it to appear just one instead of (x times of how many records there are in file.)
I have a datagrid view in my windows form which is bound to a datatable. one of the column have the status code and i want to display the status description of the same which is defined in an array.can we have display text and value of the column different. i dont want to go with datagridcombobox column.
have made a connection to a database through VB and i was able to extract a single value from a record and display it in a datagrid table, but i don't know how to display that value in a textbox. i tried doing e.g. txtABC.text = datagrid123.item but it seems that the values cannot be converted between the datagrid and the textbox.
I have a form with a listbox that when the form is opened I need it to display info from a file. I don't know what would be easier to work with Excel or a txt file, but it is in this format:
Phillip Frank 3/19/1990 3 999-555-8618[code].......
I would like it to populate the list box when the form is loaded, but if I have to use a button to tell it to load that is fine also.On the same form I have 4 textboxes that ask for each of the above items (name, DOB, Level, PH#) and a button that when pushed I want it to save it to the same file where the above info was pulled from in the same format.The Show Contacts button doesn't have to be used if it is not needed.
How to put the other data from the textbox? i will use combobox then after i choose the name the other data from the said name the text box will receive the data from mysql
Ok, I have been going around and around with this for hours (Searching, etc). This is what I want to do, I want to load data into a Text Box and if the user changes the text in the Text Box I want to be able to save the new text.
My problem in the TxtBox_TextChanged event the data contained in the txtNarrative Text box is the new data that the user typed in (<>ABCD) but in the btnSubmit_Click event the data contained in txtNarrative is the original value ABCD.
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="WorkBench_VBNet._Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
I have a DataGridView that is bound to a BindingSource. Below this are a group of textboxes that are associated with each column in the DGV. I tried to bind the textboxes to the BindingSource but realized their was no DataSource property for the textboxes. How can I bind them?
I'm working on a project that will compare two textboxes and output the difference in a third textbox. To provide some background what I'm trying to do is compare a users active directory groups to another users groups. What I want this program to output is the groups the user already has, groups that need to be added, groups that need to be removed(basically unique values).comparing text will output an integer, or boolean. I need the actual difference outputted in text to have a working document of changes to groups.
Here is an example of what I want it do, but i'm only able to get it working using an excel macro.
Sub UniqueValues() Application.ScreenUpdating = False Dim i As Long
I have some textboxes that I need to get data to on another tab, everything works beautifully until I get to one and that is where the client ID has to be filled oin to that textbox. I have a chkBox that will verify the data that is suppose to be put over intothe tabbed page and if I check it, it will put the data into the textbox. Yet if I leave it unchecked the data does not get copied.
Public Class Form1 Private Sub ClientsBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
i have a textbox for search,a datagridview and 7 textboxes for the items info.if i type the word in search texboxes and the datagridview shows the match item but when i clicked the datagridview it shows the error..
Private Sub Supplies_RegularDataGridView1_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles Supplies_RegularDataGridView1.CellClick
This code below display the auto generate number from sql server to textbox, but the problem is when i create a menu item to link to another form where the textbox inside it is not display any data. So when i click any key from keyboard it data appear, so how to display the data in the textbox when i load the form from menu item.
Private Sub serialnotxt_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles serialnotxt.TextChanged connect()
I want to Display My Table Data In Textbox.I Have around 20 columns in my Table and I want to display each of that on particular TextBox.I am using SQL Server as Database.
My code is below. What I "hoped" it woudl do is when I press the button on my form it would open / load my xml data and display the data in my TextBox.
What it does - it compiles fine and runs but when I press the button nothing appears in my TextBox.
My code is below. What I "hoped" it would do is when I press the button on my form it would open / load my xml data and display the data in my TextBox. I have on my form one TextBox and one button. What it does - it compiles fine and runs but when I press the button nothing appears in my TextBox.
Visual Basic Express Code: Imports System 'Imports System.IO Imports System.Xml Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) [Code] .....
I am working on a program and need to know how to input data from a database to muti textboxes in vb.net.I already got the database set up. im just trying to read from it so it can go in to textboxes.
I have an webbrowser, and I want to save the start page into an XML file... I have a textbox where I can input the start page url and an "apply" button, I got the apply button to work, and the URL saves into my_start_url.xml.
I have an project.Airline Reservation system which i have to do Using VB.net and any database in the back end.I have MS access so i have created a database and created tables .For checking purpose i created a normal form and n that i have a text box .On button click i just want to connect to database and retrieve the flightId from my table and print it into the textbox .i have written folowing code [code]Now i am getting an error that Object reference not set to an instance of an object. at the point where i bold n the code.I have tried various things..I wasted so much time ..in the end i didnt have any option.Because i have to develop total project now ..this alone took me 5 hours today.
I managed to print the file using the DocumentPrint object. But there's a problem :) i need this data to be printed in a tabular form (just like an excel sheet). Because the lenght of Data1, Data2, etc.. strings is different i can't just use space characters to divide "columns". I have no idea where to start..
