I was have a code (shown below) but I am getting errors for the following line:
Code:
Dim line = lines.Where(Function(l) l.StartsWith(TextBox1.Text)).FirstOrDefault
ArgumentNullException was unhandled
Value Cannot Be Null.
[Code].....
I have a javascript code that will output text in a separate textbox. Id like to try and do the same thing in my application now. Basically what I want to be able to do is type in a phone number and when the area code is entered to have it display the state.
Input textbox : 512
Output textbox : TEXAS
I have no idea if it is possible or how to do that.
i'm having the following code to add the textboxes dynamically. now i want to get the values entered in that textboxes dynamically...
heres the code:
Code:
Public Class Form1
Public x = 17
Public y = 60
[Code]....
I have a hidden button on a form.When text is entered into a TextBox, i want the button to become visible.
View 3 RepliesI am creating a Calender application using the monthly calender control.I am trying to implement a search for the calendar so a date can be entered into a text box which intern moves the calender to show the date entered. I have been try to figure this out with no luck, is it even possible to do?
View 2 RepliesOkay, so what I want to do is directly output formatted RTF text to a Rich Text Box control in VB.NET. I don't want to find the text, select it and color it as it is not practical for what I'm doing. I've tried outputting RTF code but that isn't working either. Can I actually do this or will I have to write a dll?
View 1 Repliesi am using vb.net 2005, in my window form i have textbox as txtbox1 and txtbox2. if i entered any text in txtbox1 and press my tab button the txtbox2 should display the same text as txtbox1 .
View 2 RepliesI was working on a project and could not get the text output to be formatted like a table in text-box or rich text-box in visual basic 2010. Here are the code i have tried.
For i = 0 To 17
If cartfull(i) Then
rtbReceipt.Text = rtbReceipt.Text & vbNewLine & amount_added(i)
[Code]......
Basically, I want to have a text box that will display text associated with the text input.
For Example:
input : 512
output : TEXAS
or
input : 659
output : ALABAMA
I have heard that it is possible to do this, and I would like to find out a way to. Even if I need a separate text file with the arrays, I would like to get this to work.
So far what i have is a button and a text box and when you press the button it my.computer.filesystem.readalltext(from this file as string) but what i want it to do is to read all the text in that file minus whatever is in parenthesis so like lets say the file has saved into it, hi my name is bob but my realname is (jeorge) that when you press the button it reads and shows everything in the file minus jeorge which is in parenthesis
View 4 RepliesI am reading data from a SQL Database and then formatting the strings i pull to complete a work log for myself.
1. I am wondering what the best way to write the info out. Eventually i will copy the text and paste it into an email and send it to other co-workers.
2. I have a field called ticket number and the data that i have looks like #1234. I would like the #1234 hyperlink to the correct webpage (someplace.com/issue1234)
I currently have the text displaying in a Rich Text Box but ive also tried to write a standard txt file as well.
What's the code for input and output text?Ex.I have two textboxes. Textbox1 and Textbox2 I type in "1 2 3" in Textbox1 I press a button and it converts the numbers to it'scorresponding letter, like A B C. I need a code so that I can do that
View 1 RepliesI have a few instances of a user control that has just a TextBox to search for items. The cursor is in one uc TextBox but the text I type appears in another uc TextBox. How can this be possible. Notice the cursor in model number, but the text is in upc.
Code:
Private Sub TxtScan_KeyDown(ByVal sender As Object, ByVal e As KeyEventArgs) Handles TxtScan.KeyDown
'When typing in the model number uc I see that the sender
'is the txtbox is the one in the UPC user control.
End Sub
I wonder if it's possible to do some action, when user've entered specified text in specified cell of DGV and he skips to another cell ?
What event should i use then ?;/ I can see some classes fot cellendedit and so on, but how to specified it to a single cell, not al of theme?
So, I need a way to email information entered into a textbox to an Email address through the .exe itself after pressing a command button.
View 1 RepliesI have an application that uses the editable dropdown combobox (comboboxstyle.dropdown)
But when I run the application, whenever I entered a new value that is not in the list, it disapears when i focus to other cells.
I am using vb 2008, and I am trying 2 code a button that will change the colour of the font that is being entered. I want it to open a dialog box so I can choose the colour..
View 2 RepliesIs richtextbox can save a text within its control? What control in vb.net that could save the text being entered within its control paticularly, if any? I need somebody that could give me an idea on what control to use to save the text within the control. I'm not trying to save the text anywhere. I want to save it within the control. I don't have to save it with a filename and a path location. Just like this forum, which everytime you post and reply to a thread, you will have to enter your message in a certain workspace and after you submit, it will save within the control so everytime you open your thread you will see the messages. What control do I need to use in vb.net to do that?
View 1 RepliesI have a text box where users will enter 4 digits that are ONLY numbers 0-9. I have blocked all letters and less than 4 or greater than 4 digits. But, for example if I enter 10.0, it will throw an exception, due to incorrect math used later in the prog. So how can I block the use of a (.) or any special character for that matter! I am using specific msgboxes to let the user know what isn't allowed, and would like to do the same for special characters.
What I have so far:
If Val(txtEntered.Text) < 0 Or
(IsNumeric(txtEntered.Text) = False) Then
MsgBox("Sorry, but letters are not allowed!")
[Code].....
I'm building an app that does calculations (in dollar amounts). I want to buildin a constraint that says the value entered into text box must be greater than 0. If the user does not follow this rule, I want them to get an error message.I have the calculations built and the error message, but not the constraint statement i.e. if users enter negative numbers the ouput is negative, which in the context of this app makes no sense. how a statement that would require the value entered into a text box to greater than a value.
View 3 RepliesI this application, I am retirving data to fill combo box from database.There is a search buttom next to it which takes that selected and search in database and retieve other data related to it.Now in the combo box, one can also enter data (textfield too).So if the person enters wrong things, I want to display a message that " Incorrect value"
My code for the onclick_search is as follows:
Private Sub btn_cylsearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_cylsearch.Click
[code].....
I am trying 2 enable my button when text is entered in a textbox. i have tried this but it isnt working,
btnAddItems.Enabled = False
If tb1.Text.Length > 0 Then
btnAddItems.Enabled = True
End If
End Sub
the button is AddItems, and the textbox is tb1.
I have this program I'm working on, and I was wondering if it was possible to disable/enable TextBoxes when specific words are wrtten. I tried doing this, but it errored. I'm a new programmer to VB, I just started a month ago, and I'm doing this for fun.
If TextBox1.Text = "Shutdown" then TextBox2.Enabled = True
I also want it so that you don't have to press a button to identify if it is the right text, so it could "scan" automatically.
I'm working on an application to write reports for the work I do. I have a Grid filled with Textboxes inside a Scrollviewer to input data for the report. I am using the arrow keys to navigate around the grid. The focus moves to the expected Textbox when the arrow keys are pressed but if I press any other key it is immediately followed by a Tab to the next Textbox. Even a Tab is followed by another Tab. Following is the code I use for the navigation.
Private Sub svReportPage_KeyUp(ByVal sender As System.Object, ByVal e As System.Windows.Input.KeyEventArgs) Handles svReportPage.KeyUp
Dim focusDirection As FocusNavigationDirection
If e.Key = Key.Right Then focusDirection = FocusNavigationDirection.Right
If e.Key = Key.Left Then focusDirection = FocusNavigationDirection.Left
[Code] .....
I have a program in which a user enters a sentence in English into a text box, then the sentence is translated into French and German based on words in an array of structures that gets its values from a text file. I have almost all of the program written, but I am a bit confused on how to get VB to get the English words that are entered into the text box separately so they can be translated individually and the value returned. I need to use a Sub Procedure to get the English Words and to Translate them. [Code]
View 7 RepliesI'm chasing code that is going to allow me to have multiple text boxes on my form, but when the form is first opened, it will only display one textbox. Once data is entered into said text box, i want it to display the next textbox, and so on. Is there a way to have these hidden?
View 4 RepliesI need to perform some validation for a computing project, How would I restrict the user from entering symbols into text boxes?
View 3 RepliesIs richtextbox can save a text within its control? What control in vb.net that could save the text being entered within its control paticularly, if any? I need somebody that could give me an idea on what control to use to save the text within the control. I'm not trying to save the text anywhere. I want to save it within the control. I don't have to save it with a filename and a path location. Just like this forum, which everytime you post and reply to a thread, you will have to enter your message in a certain workspace and after you submit, it will save within the control so everytime you open your thread you will see the messages. What control do I need to use in vb.net to do that? info especially the codes to save the text string within a certain control?
View 11 Repliesis there a flag i can call to validate the text entered in to a databound combobox?
My situation is that i have a combobox where users can type in whatever they like, but OnLeave i'd like to ensure the value in the combobox is one of the items in the data that its bound to.
i'm avoiding a listbox because the suggest/append creates a nicer interface while they are typing as it shows possible matches.
I have an windows mobile application. In the windows form of it, I have a combo box.I load the values in the combobox on frm_load event.Now we all know what the combo box has the facility that it allows to enter text as well as chose from the dropdown.So when they enter the text, I want to validate it against the list that is in it.If not then msbox error.
My loading of the combo box is here.
Private Sub mainfrm_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim con As New SqlConnection("XXXX")
Try
[code]....