Text Box Formatting - Force User To Use Specific Type Of Input
Dec 16, 2009
I have a text box labled QTY, which feeds the QTY column on a datatable. the table then is ran through a function that takes the data and converts it to a string which my production machine can read. My problem is this, and its probably really simple (these problems usually are) how to i force the user to use a specific type of input on the txtbox so they would have to put the QTY in the format of 01 02 03 etc etc, i have it set to default to 00 but i want to force the user to haver to input 2 chars.
creating code to force user at runtime to place values in textboxes. This is what I have so far. I want to be able to force the user to have to place a value in the empty textbox and change the backcolor of the textbox back to default color after a value is placed.
HTML Public Sub Subjectvalues() Dim SubjectValues As TextBox() = {Me.subj_ba_txt, Me.subj_bed_txt, Me.subj_dom_txt, Me.subj_gla_txt, Me.subj_levels_txt, Me.subj_lotsize_txt, Me.subj_lp_txt, Me.subj_orglp_txt} Dim tb As TextBox
I'm attempting to learn VB in college. My first project is to create a program in Small Basic and then write it in Visual Basic. I'm looking for the equivalent of TextWindow.ReadNumber() from Small Basic in Visual Basic. I want to force the user to input a number not letters. I'm writing this program for the Console. Is this possible? During my testing I entered a word instead of numbers and the program crashed.
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.
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.
for example if a person types in multiple characters that represent a certain image in the input box for example if i type "tom" in the input box each letter represents a different image. Can i display those 3 images on the form somewhere? this is what i have so far...
Dim character As String = InputBox("Please enter a word")
I know that much but im not sure how i can connect the letter with a image for example
PictureBox1.Image = My.Resources.pic02
i want t to = my.resources.pic02 and i want it to display on the picturebox1.image
How do I determin if a user has given me what I am asking for in terms of data type.
Example if my prompt to the user say "Give me a number of double data type"
How can I tell that the user entered a double xx.yy?
Or if I am testing for integers and I get user input ABC.GH?
I know about CDbl and CInt and CStr but these don't work unless data is provided. Also how do you test if the conversion took place? Also how do you differencate between 12.00 being integer?
I am currently using double data types. The problem I am encountering is that sometimes the user will have to input a value of 0 in the required text box and this creates an error. My question is what data type will allow the user to input 0 and allow the mathematical functions to work properly. Decimals maybe?
I'm trying to identify if the input of a textbox is non numerical, which cannot be converted to an integer/double for calculation. I do this by converting the input1.text to ascii, and looking at the value to determine the type of input. My question is whether there is any way I can analyze the whole input character by character? Asc() only gives the ascii value of the first character, but what if the input is "9W" etc? Such inputs will pass my character test, but cannot be converted to an integer.
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 am using a text box to display a list of items in which I want to be for reading only. Is there any way that I can not allow user input into this text box? Right now I have the text changed set to show an error message, that works but the text entered before the message box appears, still shows.
What code would you use to email one text box's user input like a name. I have tried so hard for this but after 3 hours of stress I finally have decided to come here. This project is causing a lot of stress and I can't believe that these simple things are getting me
I am reading data from the database with SQLCommand object SQLReader, all I want to know is I want to read a specific row from my column myData...e.g.I want to read row 11 or random row from mycolumn, what is the correct syntax I am reading all the data(rows) from mycolumn with the command
"SELECT mycolumn from Table1"
what is the syntax to read the 11 or any row of this column?
is there a way to accept user input and convert those inputs into command? e.g. i have a textbox that can "test" commands. when i type this into the textbox, it should run the command:
I have code to go through a document highlighting letter by letter:
Private Sub Timer1_Tick( ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick If Not RichTextBox1.SelectionStart < RichTextBox1.TextLength Then
How do I get numbers typed into a text box to be feed into my code and then the code to be ran?Below is the code that I want the information from a text box to be fed into. With the (0, 50) being the numbers.I will have a form set up like this, A button labeled Generate. 3 Text boxes total, 2 of them side by side with one being low and one high. For example The user will input 5 in the low box at 100 in the high box. Hitting generate the numbers will then be inserted into code and the result being shown in the 3rd text box.
Now what is the code that I'm looking for that will help me take information from TextBox1 and TextBox2 and insert into the (XXXX, XXXX) field in my buttons code?
I have lines in my text file like this: x y x Y x y x y x y x y x y x y x y x y x y x y x y x y x y x y x y x y x y x y
Lets say I have 20 lines like this. I want to change this lines according to user input. So user will input how many lines they want to change in terms of row and column. In my program Row=TextBox5.Text column=TextBox6.text User must enter initial value for x and y. Let say the initial value is x=1 y=1. Row=2 column=5..
Now my lines should look like this. 1 1 2 1 3 1 4 1 5 1 1 2 2 2 3 2 4 2 5 2 x y x y x y x y x y x y x y x y x y x y
Since I enter row=2 only two set of lines is change other lines remain unchange. But in my coding all the lines is changing like this: 1 1 2 1 3 1 4 1 5 1 1 2 2 2 3 2 4 2 5 2 1 3 2 3 3 3 4 3 5 3 1 4 2 4 3 4 4 4 5 5 which is wrong.
This is my code Dim lines() As String = IO.File.ReadAllLines("C:\wirematches.txt") Dim xValue As Decimal = Val(TextBox1.Text) Dim yValue As Decimal = Val(TextBox2.Text) Dim altValue As Decimal = 2.54 Dim lineTracker As Integer = 0 [Code] ..... This code working fine for changes the column. But i dont know where i should write the code for row.
I know there are work-arounds like using a Select Case, but in my situation, it would make things a lot easier... especially since I won't know exactly what will be entered. I can't force the user to use a combobox or anything like that either, because it is going to be unique code for every situation. If there is no way of doing this, I will figure something else out, but it will require a lot more work.
I'm familiar with Visual C# and the try/catch for that but I cannot seem to figure out how to do the same thing in VB. Basically I can't figure out how to get the try/catch to work with text boxes and input from the user and whatnot.I've tried setting the textbox.text property = "" but that has no use, I've been trying to find something on Google about it but I cannot seem to find a single thing about textbox try/catch statements. Is it possible to do it with text boxes?
I have a server (server A) that has several public IP addresses. I am building a desktop application that will run on server A to fetch data from another server (server B) using the httpwebrequest class.
What I would like to do is be able to programatically direct the application to use a specific IP address from the one the server (A) has.
I am calling a function from a VB.NET webserver to a custom written unmanaged DLL.If we call this DLL via a webservice on a multi-core server we run into problems and it always crashes.If I reboot the server and make it only use a single-core, it always runs fine and never crashes.I know the DLL call is responsible for the crash as I have outputted debugging code just before and after the DLL call.I can force the processor affinity of the .NET code to 1 core but this doesn't apply to the unmanaged DLL.How can I force the unmanaged DLL to only run on a single core as I am sure this will solve the problem?
Is there a simple way to save user input from MANY controls (textboxes, comboboxes, etc...) to a text file? When I say 'MANY', I am referring to at least 580 textboxes and several dozen comboboxes.
I may be able to accomplish this using the StreamWriter Class, but doing this individually would take quite a long time. I suppose I could also change all text boxes to richTextBoxes and save to .rtf. It seems like this would be even more time consuming.
Surely there is a simpler way to do this 'globally', perhaps with an added single line of code that points (and saves) to a preset or created text.txt file whenever text is added or changed in a textbox or combobox throughout the program.
I am trying to prevent the User from proceeding if a specific text box is empty. All of the following lines of code SEEM TO work:
If txtTitle.text = "" Then..... If txtTitle.Text = Nothing Then..... If txtTitle.text = Nothing Then..... (followed by a message box advising of the need for input)
The problem is, if the User enters a space (either accidentally or intentionally) all three of the above recognize the space as a valid entry.
I am trying to create a function to remove dirty words from user input text and want to replace those dirty words with four ****. In my scenario , i have list of dirty words where i would iterate the input user text and want to replace. Say for example.,
Dim InputTxt As String = "hi bush how are you.... $hit and @ss" Dim OutPut As String = " hi **** how are you... **** and ****";
Problem: It works fine to replace some word like " bush" however fails in the below function doesn't replace "$hit" and "@ss".
Note: I do not want to use string.Replace because it doesn't have word boundary in the sentence..
Public Function pReplaceWords(ByVal dirtyWord As String, ByVal inputText As String, ByVal options As RegexOptions) As String Try
I need to pull a random word from a text file in my resource folder (visual Studio 2010) and then have a user enter a letter to see if it is in the word. Yes, Hangman game. There is more, but right now I need to pull from that text file for a start. I know what I have is not even close to right under "Get Word Button", but I'm kind of confused about the process.
Public Class hangMan Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load Dim word As New Random End Sub
I am doing form validation in VB, I validate the text field data by using txtName_LostFocus function, and on wrong input I used txtName.Focus(). It works well for me. But problem is that as for as, user does not input valid text, my EXIT button also does not works.
My app has text boxes to accept input from user to questions shown on labels. When the user input is valid, a literal is added to a string incorporating the user input. If the user doesn't input anything or if user inputs "no" or "None" I want the literal and the user input to not add to my string. Make any sense? See my code below:
