Allow User To Enter Only Numbers In A Textbox?
Aug 5, 2010How can I prevent the user to enter characters but only numbers and '.' in a textbox in vb.net 2005?
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Create A Program Which Will Allow The User Enter Ten Numbers?
Nov 5, 20095. Create a program which will allow the user enter ten numbers. The program is to count how many numbers were above 50?
View 1 RepliesVS 2008 Enter Only 7 Numbers And A Letter - Passport Number Into The Textbox
Oct 26, 2010I have a customer form and want the customer to enter a passport number into the textbox and want to limit them to enter only 7 numbers and a letter.
View 1 RepliesCheck If The User Enter Alphabet In Textbox?
Sep 25, 2010how to check if the user enter alphabet in textbox the only allow in that textbox is number
i think i will use ascii there like in vb 6.. but i dont know how to done in VB 2008..?
VS 2005 Allow The User To Be Able To Use The Enter Key To Exit A Textbox?
Mar 17, 2009I'm looking for what will allow the user to be able to use the Enter key to exit a TextBox control.
View 5 RepliesAutoComplete Textbox - Start Again When User Hits Enter
Jan 15, 2012I have an autocomplete textbox in vb.net. It is working fine, but now I need to pop up the window again when the user hits enter or double clicks. So far, I know that when the user hits enter, the keydown event raises with e.kecode = 13. I guess my code would go here. My problem is how do I tell autocomplete to start again after the user hits enter??
View 11 RepliesMove To Next Textbox When User Presses Enter On Keyboard?
Mar 2, 2012I want to format my textboxes in such a way that when someone fills in the details in the textbox if they press enter button on the keybord the focus is given to the next textbox that they should fill in .I tried the code below that we used in vb6 but its not working.
View 3 RepliesTextbox.autocompletesource - Allow A User To Enter A Music Chord?
May 7, 2010If i want to allow a user to enter a music Chord like C, and want the textbox to autocomplete....do I use AutoCompleteSource and list every possible chord, or do I use AutoCompleteSouce.FileSystem? And I I use FileSysytem, how do I use it? Do I craete a txtfile for it? What's the best way?
View 4 RepliesVS 2008 - Selecting Last 3 Characters Which User Enter In Textbox
Dec 14, 2009I want to put a persons National Insurance Number into a label but I want to put *** in place of the first 5 characters and then display the last 3 characters as normally.
View 1 RepliesAllow A User To Enter Some Number (n) And A Choice Of A Count Up Or Count Down For That Many Numbers
Dec 10, 2010designing a Windows based computer program that will allow a user to enter some number (n) and a choice of a count up or count down for that many numbers. So for example, the user enters 5 as their number and selects the count down option, the message box displayed would contain the message: "Here are your numbers: 5,4,3,2,1,0"
View 14 RepliesTextbox - When User Presses Ctrl And Enter Then New Line Entered
May 10, 2012Inside a multiline Text Box I want it so that when a user presses Ctrl AND Enter then a new line is entered. But, if they press Enter on it's own, then it acts like the Accept button on the Form. I believe this is how Facebook does it.
Ctrl+Enter=NewLine Enter=Accept
VS 2010 - Add One Textbox So The User Can Enter A Distance Measured In Feet
Mar 31, 2012I started learning vb 2010 over the internet for about an a week and got stuck on this assignment that I got from the internet
1.Add one textbox so the user can enter a distance measured in feet. Add labels as needed.
2.Add a button control which when clicked is converts the feet to meters (1 foot = 0.3048 meters), accepting floating point values and preserving them (no integer conversions) and display the output as shown next. 1 Points
3.Display the conversion result using a MessageBox (not msgbox) using this format: x feet is y meters, where x is the value entered and y is the result of the conversion to meters with up to 2 decimal places only. Then show an extra line of "Would you like to start another distance conversion?" and make the No button the default in the message popup and display the question icon.
4. If the user chooses Yes, cleanup the controls as in the Reset button. 0.5 Point
5.If the user clicks no, ask in another MessageBox if the user wants to quit.
6.If the user chooses to quit, close the window, otherwise no action is required.
Make An Application Whereby The User Can Select A Color, Enter A Character Into A Textbox?
Feb 12, 2009I would like to make an application whereby the user can select a color, enter a character into a textbox, select another color, enter another character and so on and so on...This multi colored text that has been entered into the textbox by the user must then be shown on a label. I cant get the damn characters in the label different colors They are all for example, either red or all blue.
View 2 RepliesVS 2008 - Calling Sub When User Press Enter On Textbox (Computer Beeps)
Nov 10, 2011I may be doing this wrong but I want to call a sub when the user presses enter on a textbox. The sub then shows a window in dialog mode. When I close that window, the computer makes a ding sound. Why is that? Is there a better way for detecting enter being presses on a textbox and not getting that ding?
If e.KeyChar = vbCr Then
LookupItem()
End If
Make Textbox Stop Typing When A User Types Numbers?
Apr 2, 2011Is there a way to make the textbox stop typing when a user types numbers? I don't want an error message, I'd just like the user to be able to insert 10 numbers and then it shouldn't add any newly typed numbers.[code]....
View 1 RepliesVB2008 Program - Enter A Data That Enter In Textbox To A Datagridview?
Aug 29, 2010how to enter a data that i enter in textbox to a datagridview... for example i enter in the textbox is round and when i click add it will go to database... im using ms access database
View 1 RepliesAble To Stop User From Entering Other Information Until Enter Right Information In The Textbox
May 24, 2012I have a text box where i am entering numbers of double datatype andon the Keytdown event of the textbox some checks take pace and in certain circumstances I want to be able to stop the user from entering other information until they enter the right information in the textbox (where it says right here) . now when I say exit sub the textbox somehow loses focus . but this is not how I want it to be I want the textbox to remain with the focus so the user can change the information . How can i go about this. And the other thing is why is my txtDestPayRate1.Focus() just befor the exit sub not working?
Private Sub txtDestPayRate1_KeyDown1(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles txtDestPayRate1.KeyDown
If e.KeyCode = Keys.Enter Then
[CODE]...
VS 2005 Read User Input Using Textbox But It Only Can Read Character And Numbers?
Jan 2, 2010I know how to read user input using textbox but it only can read character and numbers. Is it possible that I want to read user input equation?
Example:
User type A+B
User put range of A and B.
1.25<A< 3.56
2.45<B< 9.87
I failed to read the equation using textbox. Is it there are other ways that can use to read equation input A+B?I am using VS2005 and VB.Net. I really new in this programming using VB.Net.
Let Textbox1 Only Enter Positive Whole Numbers And Positive Decimal Numbers?
Jan 10, 2012How to let textbox1 only enter positive whole numbers and positive decimal numbers
View 4 RepliesUser To Input Numbers From An Inputbox And It Displays The Total Numbers Entered?
Mar 18, 2011I have a program that allows a user to input numbers from an inputbox and it displays the Total numbers entered, the sum of the numbers entered, and the average of the numbers entered. What I can not seem to find it how to have it display the largest number entered. The code I have so far is,
[Code]...
Box - Conversion Error - User Enters 6 Numbers In 6 Different Text Boxes - Displays The Larger Of Those 6 Numbers
Oct 4, 2011I am making a program, where the user enters 6 numbers in 6 different text boxes, and it displays the larger of those 6 numbers. But I also want to make it where if the user enters a string value (like S for instance) in the text boxes, it gives an message and says "please enter the numbers again" and the user gets to enter the 6 numbers again. But when I do try to do that, it gives an error message saying conversion from "w/e the user entered" to Double is not valid. If the user just enters the numbers, it works fine. However, I am trying to make it if the user does enter non numeric value, it gives a message window and the user can reenter the numbers again.
Here is my code Example
CODE:
This is where I am trying to use IsNumeric to show a message if a user does not enter a string so the user can renter the numbers again, but when the user does enter a string value (say in textbox 1) it gives me an error message saying conversion from "S" to 'double' is not valid.
CODE:
Then right here this is where I have my series of ifs statements, this part works fine, it displays the largest numbers of the 6 textboxes every time. Error free.
CODE:
And do this with variable number 2, 3, 4, 5.
I know there are easier ways to do these with arrays and stuff. But I am not there yet. I am still learning about ifs and stuff.
Enter Numbers And Letters?
May 23, 2009How do i make it so that you can only type in numbers and letters in a textbox? I want to disable the use of ("*(&$.....etc.) those types of symbols.
View 3 RepliesLimit Textbox Input To Numbers And Range Of Numbers
Apr 4, 2012i 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 RepliesEnter Only Numbers And Decimal Point In Text Box
Jun 28, 2009I want to specify the user to enter only the numbers and decimal point in the text box.[code]values something like that which contain only numbers and dot.This is the code to enter the numbers only.[code]How to make the code to accept dot also?
View 5 RepliesSendKeys.Send (Keys.enter) Getting Numbers?
Jun 12, 2009here is the code
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
SendKeys.Send(TextBox1.Text)
SendKeys.Send("( )")
[code]....
As you may see it is a "flooder", and i am just playing around with the program, evrything worked, until i did want to try it on msn, and i have to use the "enter" or "return" button. to send the text.insted of "pressing" the enter button and send it, it just writes the number 43? it is this line that i have problems with "SendKeys.Send(Keys.Enter)"
Open A Txt File And Write Into It Numbers From 1 To 100 And Put Between Every Number Enter?
Jun 26, 2010I want to open a txt file and write into it numbers from 1 to 100 and put between every number enter.
View 4 Replies[2008] Keypress Event That Only Allows Numbers, Backspace, And Enter?
Jan 15, 2009I am trying to do an keypress event that only allows numbers, backspace, and enter. I have the part that only allows numbers
If Not (IsNumeric(e.KeyChar)) Then
e.Handled = True
End If
I need to know how to know what keychar the backspace and enter are.
Inputting Numbers Into A Textbox And Formating The Numbers?
Jul 30, 2009I 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.
Generate The Maximum Number I Enter/type Within 3 Or More Numbers Using Math.max?
Feb 7, 2011how can i code a simple program to generate the maximum number i enter/type within 3 or more numbers using math.max. for example, if i enter 25, 60, 45 how can i use math.max to calculate the largest value out of the 3 numbers?
View 4 RepliesDetect If Press Enter In The Textbox Change Event And Not In Textbox Keypress?
Dec 13, 2011how can I detect if press Enter in the Textbox Change event and not in Textbox Keypress?
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