I am trying to extract the left to numbers from a textbox this is hat I have but it does not work:
Dim lblLmins As String
Dim txtHrsMins As String
lblLmins = (Left(txtHrsMins, 2))
In VB6 it's very easy lblmins = left(txtHrMins,2))
I'm using vb2008 Is that possible to change the pointer from left to right to right to left in the TextBox.
View 4 RepliesIs that possible to change the pointer from left to right to right to left in the TextBox. to became as it show in the pic below.
View 2 RepliesI am pretty new on regular expressions, but as far as I've been wandering around Google, the only thing I could do to solve my problem is through regex. I have a collection of strings which have patterns like these:
"3 - Orange, Lemon"
"4 - Pineapple, Orange"
"12 - Lime, Strawberry"
[Code]...
Only the first few numbers. A comment, suggestion, or point to the right links/articles would help because so far I couldn't manage to find a decent tutorials that easy to understand.
I want to extract numbers from a sequence. Example: if the number is 1890928 i want to extract "1" or "89" or "909". I think it's something with left or center but i don't know how.
View 2 RepliesI included all the code this time. In calculate click event the value is zero and I don.t understand where I went wrong. My work is due tomorrow, if anyone can tell me why I can not extract the price from the string. What this program is doing is taking items from the stockListBox and adding them to the shoppingList Box then extracting the price from the shoppingListBox and adding the prices together.
0
Public Class SupplyCalculator
Dim lists As String = "staple" & "stapler" & "folder" & "notebook" & "pencil" & "eraser" & "pen" & _
[Code].....
Consider the text: "The precipitation will be 2-3 cm".I need to extract the integers 2 and 3 and seperate them in order to compute their average (i.e. (2+3)/2 = 1.5).Can someone help me with a regular expression which would extract the integers 2 and 3 and seperate them. I also need to know if there is any other way to do it other than regular expression.
View 11 RepliesI came across a post a while back which showed a custom rich textbox control which had line numbers in its margin. Similar to what you woudl see if you we coding in the VB designer and you had your line numbers viewable.
I think it was two controls in one (i.e. two textboxes: one for the numbers, and the other for the text). However I cannot remember where I saw it.
Forgive me but i have a noob question, I cant seem to get my head around.I have a textbox.text string as "111.1, 22.2, 3333.3, 444.44" What I want to is extract the numbers which may be random lengths, but all separated by a comma to
dim i1st number as Integer
dim i2nd number as Integer
dim i3rd number as Integer
dim i4th number as Integer
I know how to search for one instance of a string in a string but taking the 1st part to the comma, then the next comma and so on is confusing me.
[Code]...
I know how to read input numbers, but when I input equation like A+B, I can't use the equation to add two numbers. I tried many times but failed to use the equation.
Here my
Public Class Form1
Dim Number1 As Double
Dim Number2 As Double
[CODE]....
For my database program, I need to open a text file and extract the numbers written there into arrays.
View 2 Repliesi have one more issues, and hope is the last for now. How can I limit a textboxe's input to only numerical with certain range of values (eg -10 to 10) and with that happening while I type in the values?
View 9 RepliesI just D/L VB express 8, and I'm trying to learn how to use it. what I'm trying to do is write some code that:takes a number into a text box (textbox1.text)do some simple calculations with that number when I press a button (button1)display the results in a second text box 9textbox2.textThe first problem I am having:The numbers are in the "milli" range, meaning to the power of negative three, so 10^-3 = 0.01 I do not want to enter 10^-3 or any other exponent into the textbox, I am simply entering in 10 because all my units will be in milli. I've tried using exponent and scientific notation but it doesn't calculate correctly. I've done a "work around" to get it to do what I want, but there has to be a simpler way to achieve the above results without. for example, the user enters 10 into the textbox, the button multiplies 10^-3 *30, as a crude example, and stroes that value (say, B=10^-3*30) and B is DIM B as Double.
Problem number two:Error checking. I need to validate that only numbers can be entered into the textbox, or else the program will display an error message (messagebox). I can achieve this to some degree with sample code from here and other places, but, some of the code does not take into account that some numbers have decimal places (I have foud code that does, and it does work), but if a users enters, say the letter "E", it crashes the program. If the user enters "10.3Z", it crashes the program. I cannot seem to code for the last case, a mixture of numbers and letters to get an error message box.
I am trying to separate numbers from a string which includes %,/,etc for eg (%2459348?:, or :2434545/%). How can I separate it, in VB.net
View 4 RepliesI'm trying to make it so that a textbox, label, or picturebox can move from the left side of the form to the right and off the form, then reappear again on the left side like a circular loop.. It kinda looks like how news channels like CNN or NBC have stocks sliding on the bottom of the screen. Or how at the NY Stock Exchange, theres stocks just rolling through those LED displays. I want to do that in my program but I don't know how. So far I got it to only go to the right, then when it reaches the end of the form, it reverse directions so it goes left and right to the end of the form.
View 4 RepliesIs there any way to push the left padding on a multi-line text box to the left to be in line with the left justified padding on a single line text box? It is frustrating as it looks off-kilter with the multi-line text indented as it is.
View 1 RepliesHow to make validations for textbox allow numbers only or textbox allow letters only?
View 14 RepliesI have been trying to comb through information to code in VB.NET, but I can't seemed to find anything helpful to do what I need to do for my in-house project.
What I need to do is:
1. load dynamic textbox and buttons
2. when I click the dynamic buttons, it will extract the right dynamic textbox.[code]...
i have a text box with some codes what i want is to extract all of the codes that show images name
for example i have
welcome
1
[imagename]abc[/imagename]
[imageurl]http://xxx.com[/imageurl]
2
[imagename]defjhij[/imagename]
[imageurl]http://xxx.com[/imageurl]
so i want to extract the names of the images between the brackets [imagename][/imagename]
i have a text box with some codes what i want is to extract all of the codes that show images name for example i have
1
[imagename]abc[/imagename]
[imageurl]http://xxx.com[/imageurl]
2
[imagename]defjhij[/imagename]
[code]....
i want to extract the names of the images between the brackets [imagename][/imagename]
I was told to create a project that requires me to extract information from a created textbox to another. This will happen only when the timer reach every 5s. How do I do this using timer that will allow it to run and automatically record the copy the result to another textbox after every 5s.Thx for helping
View 2 RepliesI got an online txt file(url..)
I want my vb 2008 program to read all text from [url]... and put all the text there into a textbox in a vb2008 form, what code is needed to do this?
I need to extract some info of a HTML source code and put it in a textbox...i treid a lot of things and even the best idea's crasht what i got this far is :
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
WebBrowser1.Document.GetElementById("value_wood").SetAttribute(TextBox3.Text, "class")
End Sub
[code]....
the number that i want in the textbox is : 8,466
I have 3 rich textboxes on my form and I need to extract the data from box 1 and box 2 and put it into box 3 without losing the formatting (as you know richtext boxes can support colour and picture formatting that i currently have in box 1 and 2). I tried the following but it strips all the formatting from box 1 and box 2.
View 2 RepliesI am trying to figure out how to make a .SubString get the characters from right to left not left to right.Say if a user enters 123456789 in text box 1 and I use textbox1.text.SubString(0,2) it will display 12. But, I want it to get 89.I do not want it to get 98, but 89. I tried textbox.text.substring (0, -2) but that just gives an error.So if Gold is entered it gets ld
Fun
it gets un
VisualBasic
it gets ic
I got a panel that i am adding labels to. I have autoscroll enabled on it so when they fill the viewable space it scrolls. but i need to put the labels to the left unviewable space(when left scroll is already at 0) The label is placed but i dont get the scroll bars and i cant force it to scroll to a - value.
Is this even possible? Same thing with UP.
Or is the Scroll only limited to Bottom and Right?
how can i make it so my textbox can only have numbers in it
View 2 Repliesis there a way to allow only numbers in a textbox?
View 6 RepliesI have textbox and it has keypress event , I want users to allow only numbers
View 19 RepliesI have a textbox where the user inputs the employee number, but it must only accept numbers.
I have coded some lines in the textbox's TextChanged event and almost have it. but when I adjust it to eliminate other characters it triggers itself (recursive). that is not a big problem since the second time does nothing but I dont like the unprofessional way its handled.
But the real problem is that I cant get it to stay "blank" when the user erases all my code always puts "0" on the texbox.
Another thing is that when a non-numeric key is pressed, after the code dismissis it, the cursor goes to the start of the textbox messing up the input.