Probably I am asking something stupid. I have a datagridview in which I would like to be able to let the user change values of multiple columns by entering values (input 55.0) or additions(input +1.2)/decreases(input -1.2).How can I check what the exact input of the user is ?
At the moment I only use the input value (so for exampel 55.0) for which I use the DataGridView1.CurrentCell.Value which I put in all selected cells, but I would like to receive the exact user input (so eg '+1.2')
I am trying to have my program time out if the user lets it sit idle for an amount of time. Is there an easy way to find the last user input? I am using VB.NET.
I am attempting to set up a datagridview that is dynamic based on user input. The user input is a start and end date. The start date defines the first column the next column is the next date... until the end date (x-axis). The y-axis is technicians and the fields will show the assignment for the technician on that date.
All the advise I am seeing on datagridviews is to create a property methods to provide the information for each column. for example:
Dim 12-Oct-2009 as string Dim 13-Oct-2009 as string
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How do I create a object data source that allows me to populate the data grid? I want the column headers to be included as a string in row 0 of the multidimensional array. The amount of columns will be dynamic with a minimum of 1 and maximum viewing of 100 days based on what dates are selected in the start date and end date fields.The input dates will be used to generate a query to a database that will populate the multidimensional array.One solution I see is pick a start date and have a set number of dates and code for set number of columns (100) in a row and then set the names of the columns dynamically...ahhhh code repetition!
I am not sure how else to do this but looking for a more suttle way.I am using this to create a simple scheduling tool to see resource schedules by date. There is an unmoveable end date so initially I will need to look ahead 100 days but as the end date gets closer, I will have fewer and fewer dates. So eventually the end date will be that start date.
I have DataTable, and is bound to DataGridView. So, when the user inputs some values in 4 columns, it would calculate the sum and put it in the last 2nd last column.
Here's the code that I'm experimenting:
vb.net Private Sub DataGridView1_RowLeave(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.RowLeave Dim i As Integer Dim intTotal As Integer = 0 For i = 5 To DataGridView1.Columns.Count - 3
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So, basically it should sum up certain columns when the user enters numbers into it and then display it in the last column.
I need some help with the input validation of my application. Attached is the code that I have written as well as a screenshot of the front end. I specifically need input validation to verify that the user selected input for cbLengthOfStay is a number between 1-10 as well as input validation to verify the user input for txtMedication, txtSurgicalCharges, txtLabFees and txtRehabilitation is a positive numerical number. Please feel free to critique my attached code. [Code]
If my Category and Forum selection is incorrect I am sorry and feel free to move it. I'd like to have the users input in the message box that will show. For example: There is a textbox and the user puts in their name as Bob. Then the message box would be: What my main goal is, is being able to include the users input they type inside the textbox inside the message box.
Option Strict On Public Class Form1 Private Sub btnDistance_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDistance.Click 'The btnEnterSpeed click event accepts and displays up to ten speeds from the user'and then calculates and displays average speed
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I cannot figure out how to incorporate the number of days into the input box then get it to loop and count the number of times the User inputs in the number of days. Then I have to incorporate it into the equation to get the total distance D = MPH * Hours. What I have right now wil not count up the number of days and locks up after I input one number and will not add anything to the listbox. Because I also have to make sure that they cant add nonnumaric values and the number of hours per day cannot exceed 20. I have put things in and taken them out but it has been 2 days and I am lost now
I'm trying to save what the user types in the vb code Dim user as Inputbox("") for example in a .txt file i can save the textbox and listbox but i cnt figure out how to save the inputbox i really need this to be saved the most.
I am creating a form for work where managers can report when they find a customer's personal information laying around on a desk (we work at a call center where agents answer calls for a wireless cell phone provider, so we take personal information security very seriously). Anyway, I am wondering if there is a way to have a text box autofill with that manager's windows username (since they will need to be logged into their own profile to use the form).
I need something tje user can type in data to such a parts QTY cost etc. There are no predefined parts list so the user can enter any part name/Number and there is no limit to amount of parts that can be entered.
Does anyone have any idea what might be useful. It was thinks of a listview bu i can't see that you can type into that. I cant use comboboxs because there are no predefined list and i know there is some way to generate text at runtime (i think) but i don't know how to do it and i would prefer a clearer approach.
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 want to find the text in textbox in my database. I wrote the code below. It finds numbers well, but when I want to find strings it gives a runtime error: invalid column name for example aaa, but aaa exists in column1 in my table.What do you think about the problem?
cmd = New SqlCommand("select * from tbl where column1=" + TextBox1.Text) cmd.CommandType = CommandType.Text cmd.Connection = cnn
I have 2 pages, one is HTML and the other is ASPX. In the HTML I am able to get input from a user and then process a return email to them.The HTML looks like this:
My winforms application will display 100 different names, and I will need the user to enter a number 1 through 4 next toeach name.I will then store this data.I know I can use the spreadsheet control,but is there something much simpler that I can use? Maybe an array of textboxes or a datagrid?
In my program, I need to have the user input a list of numbers separated by commas. How would I go about storing those numbers? Would I put them into an array? If so, how?
If Not IsNumeric(textbox1.Text) Then KeyAscii = 0 End If I learned in MSDN and wrote those code,but it doesn't work. This code " KeyAscii = 0" it's not correct, I just want to cancel the input, for instance,if user input 1a, then "a" will be not inputted into textbox, but "1" will leave.
sample of codes that i use to insert the data in my table, it works just fine but the problem is that i cant limit my user for example from entering null values, or integers into string or strings into integer,,,,, I also ask for assistance on how to handle any errors in my system from crashing.
Dim conn As New OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Application.StartupPath & "MOMSTEST.mdb;") Dim Comm As New OleDb.OleDbCommand
On my main form i need to pop up a sub form and await user input before proceeding. I am able to pop the form but not able to pause code excecution until the user input is there. Here is what i have tried:
If chk_athor_cobb_scholi.Checked = True Then Vselect.Visible = True While Vselect.ex2 = False
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The problem of course is that the while loop causes a crazy infinite loop and locks the program down during excecution. How do i await the user input?
I'm having trouble using Visual Basic. It's my first time with the program that my college course is requiring I use. I'm having problems programing the script for an application. It's suppose to take the rate of a bunch of employees that are programmed into the application using an array, and multiply it by a decimal number that the user inputs into the application.
I have followed a tutorial at url.... It is a very good tutorial but it is also a little dated. Most people who visit it praise it to high heaven so I decided it was a good place to start as an absolute beginner to programming. (I have teamed it up with Dan Mabbut Vis basic tutorial at about.com and joined DreamInCode in order to learn what I can accomplish with Visual Basic 2008 Express ). I am up to part 6 of 7 but keep going back to part 4 because there is one aspect I just cant work out.I am creating a form which logs staff in or out of work and allows staff to include a message with their ( at work /away from work ) status details on the form.The form is supposed to update a users status in a new row when they click a button. In my form the rows per user are being over-written with the updated information - it is not being written in a new row. There is a login form which precedes the staff status form - this has a little relevant code re calling the user info from the database but I think my problem is related to the insert statement in the middle of the below code.[code]
My code has changed quite a bit since the above as the form has progressed but the problem started at the stage above and has not changed with the forms progression. Every other aspect of staff update info is working well in my form - just not in a new row.I am going bald - The tutorial was written for VB2005 Express - I am using VB2008 Express though it has not made too much difference to the tutorial.
I am using Visual Basic 2008 and I have two text boxes so people can input information and I am trying to get it so it will run a code with user credentials. However the code is giving me an error saying that "Option Strict On disallows late binding."Here is my code so far:
Public Class CIBNA Private Sub OK_Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK_Button.Click
I am learning Visual Basic from a book and at the end of each chapter the book gives tasks to perform. The task i am currently on involves creating a simple game called "Pick up Sticks". The premise of the game is to choose a starting number of sticks at the beginning, say '55'.
Alright. I have a project I need to complete by 11:00 am today. I need a program that will allow a user to input a phrase into a text box. Another text box to input a letter. Then I need the program to count how many times, the letter appears in the phrase. I have everything set up. I know how to count how many characters are in the string, but not how many designated letters there is.
I have text box in my program where I need the user to enter at least six characters. They also need to include at least one alphabetic and one numeric character.My idea is to create a loop that uses the IndexOf string manipulation to check each character. I'm familiar with the IsNumeric method .
