Good Evening! I am attempting to write a code so that someone can enter characters into a text box and then press a button which will validate the string and then count the number of uppercase letters in the displayed text. I also have a button that will allow lowercase tabulation. However I cannot get either to work or display in the associated text boxes.
View 32 Repliesis there any function to validate if a string has only numerical characters? I can cross character for character and verify if it is a number. But I look for something simpler or if already a function like that exists.
I cannot use IsNumeric or IsDigit because it returns numbers to True with point or comma.
I need only numeric characters (no comma nor points
i have 2 forms.in form1: i have 1 combobox in form2: i have 1 textbox and 1 button...I want to make in form2 when i enter some text in the textbox and press the button the text to be added in form1 combobox
View 2 Repliesive been trying for days to try to figure this out out on my own , and im wondering how i can have the user enter a string into a textbox and press a button and have that text appear on a label.
View 1 Repliesi'M making a program for a game a tool software I made that when I press a button in another dialog it appear a text + textboxs.text so when I press a button it appears in the dialog but all in the same line how do I do that when I press the button the textbox in the other dialog says.
View 3 RepliesIs there a nice simple way I can validate that text box using an If statement to make sure it follows the rule [#][#]:[#][#] (The #'s are single numbers) and not allow anything but a ':' to separate the pairs?
View 1 Repliesi have a question about a code.So when i press a button, some text comes up in textbox1.But what is the code so that after the code there will be an "ENTER" so it will switch line.I think its something like this
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
TextBox1.Text = "Hello" ("{ENTER}")End Sub
I have a form that a user inputs either A B C or D into a text box. I need to validate that one of those four letters has been entered in the text box. I am using a case statement but I think an array might work better but I can't figure out how to validate a string in an array. Or if there is a better way to use the case statement...Here is my code snippet This works, but it seems like it is the long way to do it. Also as soon as I click OK on the message box it immediatly goes and shows my next form. How do I get it validate, let the user redo, and then bring up the other form?
[Code].....
How to validate all empty text box in a form on button click? If text box empty change color.
View 9 RepliesI want to when you press the start button or stop that it displays a message output to the textbox 1
here is code from another member
HTML
Private Sub OnCheckedChanged(ByVal sender As Object, ByVal e As EventArgs) Handles togglecheckbox.CheckedChanged
Dim cb As CheckBox = CType(sender, CheckBox)
[Code]...
How do i do this. i want to be able to press a button and the text from textbox1 (25 numbers) will be added as a new line to a list box. i would also like it to save so next time the i open the program the text that went from textbox1 will still be in the list box. i am also using Visual Basic Express Edition 2010.
View 3 RepliesI have built a program in where I have to add and remove items from two listboxes. Listbox1 consists of a file which I have picked up on my C:/. Within this file, are different lines of items. At the end of the item line is a figure. I have a textbox in where when someone adds the an item from listbox1 to listbox2. On clicking the add button, it will add the total which was in the file. If I add more items, it will give me a running total of the items I have added to listbox2.
Now, I'm bamboozled in how to subtract the items from listbox2 with the remove button. So that when a user wants to remove an item that they currently placed in Listbox2. On pressing remove it will subtract the running total from the item which has been removed.. Here is my code in where I add products to the textbox. I have two other text boxes which I use to have these running totals. FYI, Textbox where value is outputted is Textbox5. Textbox6 is used to refresh the data and the other textbox is named 'Total'.
Public Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
If ListBox1.SelectedIndex < 0 Then
MsgBox("Please select a Batch")
[code]....
im doing a textbased game and im stuck on a "mathtest" i gonna do in the game on the form its many things but i just gonna write that i want help with:) [code] i want to make that the label4 (Wrong) shows if the text not "25" when you press the button/
View 8 RepliesI have the HTML (I think its javascript) code below that is from the webapge.
I want to pass something from my textarea on my form, to the text area on the webpage, and then pres the submit button the webpage.
I cant seem to find a control that locates the textarea or button..
Here is html:
<textarea id="c4ca7d536c32ca4b6ea674_input" class="UIComposer_TextArea DOMControl_placeholder" name="status" onfocus="CSS.addClass("c4ca7d536c32ca4b6ea674", "UIComposer_STATE_INPUT_FOCUSED"CSS.removeClass("c4ca7d536c32ca4b6ea674", "hide_buttons"window.UIComposer && UIComposer.focusInstance("c4ca7d536c32ca4b6ea674"" title="What's on your mind?" placeholder="What's on your mind?">What's on your mind?
I have a 'DataGrid' usercontrol on my simple little form and I press a button that opens a text file and populates the DataGrid like so,
A B C
1 2 3
3 4 4
3 1 3
Where A, B, and C are my column headers.
I also have a 'ListBox' on the form. What I would like to do is, allow the user to select one, two, or three rows (or all) in the datagrid, and press a button that will move the data from selected rows into my listbox (each row its own string in the list box).
I can populate the datagrib easy enough, but don't know how to access the cell data individually?
i 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 RepliesHow do i validate a field which contain both characters and numbers? For example, I have a field call Item ID and it must be in the form of ABC123 where ABC is the fix characters that will appear in all the Item ID and 123 is the one that will change accordingly.
View 2 Repliesi am trying to validate a string that has been inputted into a text box so that it checks all of the characters in the text box individually. I have got the code to check the first character...
If Char.IsLetter(textbox1.Text) = False Then
MsgBox("Error! Invalide charecters present")
Exit Sub
End If If
I was just wondering if there is some sort of loop that i can do so that it checks all of the characters in the text box.
If Char.IsLetter(txtCustomerName.Text) = False Then
MsgBox("Error! Invalide charecters present in customers name")
Exit Sub
End If
I want to make a program that for example i will type in text box 1 "sample" but the text that will appear is a different letters or word, example of that is i type in text box the word "single" but the text that will appear is "sample".... i know this will be in the key press event?
View 3 RepliesUsing 2 forms how would I click one button, from another form? ie In VB 4,5,6, I would used to do it as:-
Form 1:
private sub Command1_Click()
msgbox "Say Hello"
End Sub[code].....
If I clicked the button in form2, it would automaticlly, click the button in form1. Do I, do it the same way in VB Express or has it changed?
Removing the first 8 characters from a text string. How can I do it?
View 6 RepliesI'm working on a form in which strings of text are being imported. A lot of these strings contain special characters, like �, �, �, &, �, etc...
When I convert these strings to text, so they can be shown as labels, the special characters either disappear (like the '&' sign) or they are shown as some sort of icons. How can I let VB handle these strings, so the special characters are shown the way they should, without having to change the (many hundreds) original strings of text?
I have a string of characters, but I would like to have a string of hexdecimal characters where the hexadecimal characters are converted by turning the original characters into integers and then those integers into hexadecimal characters. How do I do that?
View 3 RepliesIn order for me to increment a Number, It's just too easy.Here's How to Increment a Number.[code]
View 5 RepliesI am using the MaskedTextBox and I am wanting to check for the following:
1. If the length of the text = 14 characters, enable the reset and start button
2. If the length of the text < 14 characters, enable the reset button, disable the start button
3. If the length of the text = 0 characters, disable both buttons
I am able to get most of it to work but when the length = 0, the start button is disabling like it's supposed to but the reset button is staying enabled. Any ideas? I have been looking at this code for hours and can't figure out why this is.
Here is the code.
vb Private Sub mtbClientPhoneNumber_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles mtbClientPhoneNumber.TextChanged 'Make sure that there is a phone number entered into mtbClientPhoneNumber. ValidateUserInput
[CODE]...
To see the form in action, you can see it here. The reset button isnt disabling when length = 0
i have been trying to remove special characters. i am not able to remove many crlf in middile of the string.
View 3 RepliesI have encrypted a string to something like this:
1. Asak2$)kla1015QAXKFskfa332aSJ2(Ska@Skljcmcel3p.lq,aowpqaskla2@)Skx.:Pdm^),dfs;
what i want to is convert this string to something like this
2. JXK2LB AP2WXB S1P0XE ZXPA3H X1LAKW DOXPS3
both 1 & 2 the above strings are fictitious (i made them up to make my point clear)
I am trying to make a licensing system for my VB 2010 express application. (2) above will act as a serial key which can be derived from (1) which is an encrypted form of something unique of the client computer.
I will then confirm the (2) from the client.
I need to create a console program that allows you to enter a string, of which is then outputted in reverse.
Sample:
Input: Diewas
Output: saweiD
Apparently I need to find out about strings and will also need to use a loop.
Not sure if too many people know this, but the following line will cause an error:
GroupName.Substring(0, 3) = "jt_"
....if the length of GroupName is less than 3 characters. I always thought it would simply return whatever characters in GroupName, but no, it errors. I must be thinking of the old VB6 days.So, I now have to change the code to:
If (GroupName.Length > 2) Then
If (GroupName.Substring(0, 3) = "jt_") Then
Note that the two comparisons need to be on separate lines. If they are on the same line, such as:
If (GroupName.Length > 2) and (GroupName.Substring(0, 3) = "jt_") Then then the code will still fail as the length command is executed at the same time as the substring command- which will cause the error when the GroupName length is less than 3.Just thought that those of us not aware of this should be!
dp.SyntaxHighlighter.ClipboardSwf = '/dp.SyntaxHighlighter/Scripts/clipboard.swf'
dp.SyntaxHighlighter.HighlightAll('9844f9bfb55449e6a786fa62aaadfa20')
dp.SyntaxHighlighter.HighlightAll('f6d554fd98464bdba9159b319e51b381')
dp.SyntaxHighlighter.HighlightAll('93bf4ca63ad8447abdf084d8a9991e15')
I need a regular expression that can validate that a string is an alphanumeric comma delimited string.
Examples:
123, 4A67, GGG, 767 would be valid.
12333, 78787&*, GH778 would be invalid
fghkjhfdg8797< would be invalid
This is what I have so far, but isn't quite right: ^(?=.*[a-zA-Z0-9][,]).*$