how do I validate that only letters and spaces have been entered into a text box.
Here is a sample of my
Private Sub btnWrite_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnWrite.Click, mnuWrite.Click
If Not txtName.Text Like "[a-z][A-Z]" Then
MessageBox.Show("Please enter your name using letters and spaces", "Error")
txtName.SelectAll()
[code].....
I just changed a control on a form from a masked textbox to a normal textbox because I wrote my own code to validate the data. I'm trying to clear the leading spaces that were created for this column in an Access database using the LTrim function and it doesn't work for some reason. The column is " :30" in the table and when I LTrim it and save the changes, it's still " :30" , not ":30". Is that leading entry not a space character?
View 4 RepliesI have a form that has a text box that I want to only allow users to enter a date and then a MessageBox.Show stating that their data was submitted when they press a submit button. I know that you can do this with a regular expression validation but I have no idea how to do this in Visual Basic. Can anyone offer how to do that?
View 2 RepliesI have two text boxes on my form (Text Entries) How do I code either the button or the text boxes to ensure entries are made in them Regards
View 3 Replies-When adding a consignment, the system should generate the consignment number automatically in the format XY12-xAB, where x is a number that increases by 1 for each consignment AB is the Shipment Type (EA, SA or SF) and XY12 is the Office ID.I know how to validate it to be XY(digit)(digit) by using regular expression.
If Not Regex.IsMatch(txtShipConsignmentNumber.Text, "(?s)^(XY)d{2}$") Then
MsgBox("Please enter a valid Shipment Consignment Number e.g XY12")
txtShipConsignmentNumber.Select()
But not sure how to implement the other stuff required.
In my program, I get an rtf file (which I load through a Rich-TextBox), and need to format it a bit: I need to remove certain spaces, from certain lines.
View 19 RepliesI have some HUGE text files (easily around 2000+ lines) I need to clean where some of the formatting is like this:
CODE:
Of course there are more than 2 words in the lines, but what I said was just an example. I have to clean these files and I just want to know how to delete the whole line after the spaces (including the gibberish), but I don't want to delete the spaces in between the words that need to stay.
I was thinking I could test for 2 or more spaces and if that's true then delete the rest of the line beginning at the first space. The only issue is there are tabs sometimes between the words and I don't want to mess with those right now. (I have no clue how to make source that deletes spaces but not tabs... Perhaps you can single out tabs?)
Because of the formatting to make the text files look "cleaner" there are sometimes 5 (least) - 8 spaces (max) between each some words. So should I check for 9 spaces? (1 more than 8). There seriously are huge amounts of spaces between the words and the gibberish.
I'll worry about formatting the text and what not later, right now I'm only asking for help with the spaces and gibberish issue .
I'm usually a C++ man, not used to VB.NET (2005) but I will only be using this project for cleaning these files and the dialogs are much easier to make than MFC for C++. So I figured this would be much faster and easier (except I have very little experience with VB.NET)
I have written a program which read a file and convert it into my required format, but the problem is at the end there are three empty rows (lines) then "End of Report" message is displayed, here is my code. [code]
View 1 RepliesHow do i put restrictions on a text box so that it should not accept spaces ?
View 1 RepliesI am trying to remove all spaces from a text field when a form is submitted so that the contents of the post code field match those in a database...
If drSet5c.Tables(0).Rows(0).Item("post_code") = UCase(Replace(tbPostcode.Text, " ","")) Then
response.write("Postcodes match")
[Code]....
So if the postcode in the database is AB12CD and the user types AB1 2CD the space is removed on submitting the form and the match statement shows. This is not working though.
VB 2010 SOLVED: 1: How can i let the spaces from a text automatically dissappear?Like when I paste 999 277 883 it turns out to 999277883 without a click.
2: Is it possible to click on a link in WebBrowser1 and make the clicked link appear in WebBrowser2?
I am just adding validation into a new winform. I am using the validating and validated events, in conjunction with an error provider control.No problem with first validation (ie. if user enters more than 12 characters). Error is set in validating event, and error stays until user enters 12 or less characters. Validated event is then entered and error is reset to empty string.
However, there is a problem with the 2nd validation on same text box. The code checks for zero length in text box.. and sets error with provider. Watching in the debugger, this code is indeed invoked, and error is set ok. Then something weird happens, the validated event is (unexpectedly) fired, and the code there promptly resets the error. Why is the validated event fired when there is already an error set ? This seems like a .NET bug. Can anyone suggest another way of doing this, or say what I am doing wrong ?
[Code]...
HStrange Issue Validating Empty Text Box in Winforms
View 4 RepliesI am having a problem with validating multiple text boxes in using VB.net. I have all boxes validated to display errors if the calculate button is click and the boxes are blank and I have each individual text box to display an error message if the appropriate requirements (values) are not entered. The issue I am having, I don't want these errors to pop up when a user clicks the clear button to re-enter new values,in which this occurs on each box. Below is the code I have for validating each textbox. If a user clicks the clear button (in which clears all text boxes) I still have my errors displayed to them in which I don't want
Private Sub txtLoanAmount_TextChanged(sender As System.Object, e As System.EventArgs) Handles txtLoanAmount.TextChanged
If IsNumeric(Me.txtLoanAmount.Text) Then
[Code].....
I'm working on a program to calculate Exp left until a title is available in game. I'm trying to validate that the user enters only numbers into the text box. Should s/he enter a letter I want my message box to show and then select the text that was incorrectly entered. My problem is in when the backspace key is hit it again shows the message. I believe it's in the TextChanged event but i'm not certain..
'Handles txtXP Box & Validates user input
'Converts over to a Double Number
'Provides Error Correction if anything other than #'s Used.
[code].....
I have textbox on my form, the details are below:
View 3 RepliesI'm searching an MS Access database on a text box entry but I want to validate it to make sure that its not empty and that it is equal to a value in the table, if it meets these requirements it displays the table contents
View 4 Replieshow would I get a list of ip's and then have all the ip's gather into a rich text box with breaks in-between them? I have tried searching some older threads.
View 1 Replieshow can obtain the number of empty spaces in the text box?
View 11 RepliesI have a text file like below[code]..
View 15 RepliesI have an application that has more than 20 text boxes used as inputs(numeric) ( in a form with multiple tabs), and from these numeric inputs I calculate many parameters and display them in other text boxes.The question is how can I trigger an event that will run the calculation procedures each time any of the text boxes numeric values change?( with out having to make procedure for each text box validated eventIs there some thing like a common validation event for any entry in any text box?
View 2 RepliesAnyone know of a nice efficient function that could convert, for example:
HelloWorld --> Hello World
helloWorld --> Hello World
Hello_World --> Hello World
hello_World --> Hello World
It would be nice to be able to handle all these situations.
Preferably in in VB.Net, or C#.
The code below at the moment reads a text file and then writes it out again to a different location. One thing i need to be able to do before it get written again is to scan each line and reduce any line that has more than one space in it.[code]...
View 6 RepliesIve been reading up on the split function on Msdn but grasp how if I had a text in textbox1 it would remove all spaces and textbox1.text and is split the easiest method?
View 3 RepliesI have a notepad txt file that has two columns of data. Vb reads data having one blank space (this is in column one) but ignores any other data beyond two blank spaces. in addition to being able to read the second column, I want to store the data thats in the column 2 in a separate string.
View 5 RepliesI am writing below code for validating compulsary field account no. in form.User's requirement is set focus back on field when error comes :
If txtAccountNo = "" Then
MessageBox.Show("Account no filed can't be left empty")
txtAccountNo.SetFocus
Exit Sub
End If
It's working properly. But suppose user don't want to fill form and exiting from application.Message box keep on appearing till user enters account no.
I have a command button that when presed allows the user to rename a label on a control ( form ) b4 its loaded.i want to put a command in the forms load event to take out any spaces b4 text in label1.
View 5 RepliesOK, SO i have this program that outputs all the servers on a specific game. It outputs it to a text file. HOWEVER, There is a lot of annoying spaces. This is kind of hard to explain, so ill try to explain it. This is what The text file looks like.
173.81.220.139 2302
70.26.235.69 2302
24.26.119.209 2302
[code].....
I have a problem in that I have five text boxes pertaining to a customer/client, where there is a txtbox for each: Name; Address; City: State; Zipcode. Of course all the txtboxes are "" at initialization. I also have 2 combo boxes and a 2D array for prices which I have finally been able to understand the array logic. I have also been able to do my necessary calculations for.
My problem. The customer information is first to be validated as all being strings and not empty. The combo boxes I was able to get to tie to my 2 dimentional array and get good output and calculations for a finished product. I am just having problems with the error messages. Also I don't want summary totals unless the data is valid. In other words, the user must enter a complete address and make decisions about the two combo boxes, both of which are needed to use the price array. I will change the comboBoxes to represent dress sizes,"S" "M" "L" and "XL" and the other combobox to describe colorRedSatin or colorBlackBroadcloth with a two dollar difference in price between them. 'That would be similar enough to the problem I need to solve.
Basically I do not want any numbers to appear for price of the dress or addons to the dress unless all validation is complete. I do understand how the radio objects work for discounts and check boxes for accumulating accessories. The program should not give any totals untill the user has input all customer information and made decisions about input from combo boxes and selected calculate from menu. Right now it calculates and puts zeros in when choices are not made from the combo boxes by the user. It will include correct amounts for radio buttons and checkboxes if anything is entered. I need error messages for customer inputs and combo box inputs (if not selected from list of option in drop down for choices) (basically if nothing was put in a text box, the text box is empty. Of course the problem is the user must enter something in all 5 textboxes and not get multiple error messages in rapid succession to fix. We can't always count on our users putting in good data.. When I tried a Do While False with ORs I was getting endless looping. I could not get it to work because it will never execute because the control never passes back to the user.
I don't want to list a series of If/Thens becauser the user will see about 7 messages, where he/she only needs to be fed one at the time. I hope someone can give me some direction. I just need guidance on how to validate the text boxes and combo boxes. The code is analyzed with a "Calculate" on the menustrip. I would like for the calculation not to calculate and put outputs into the summery text boxes unless all textboxes are filled and combo boxes are valid for all the customer information and combo box choices for my two combo boxes describing what is needed for the order to calculate. There are also the radiobuttons and checkboxes, DIMs, Const, Variables, but not having problems with that part I have my indexing problems on the combo boxes worked out also, so I am not concerned about those now except for getting the error messages when I should. I hope that I have described my issues fully. I am using visual studio 8 with Windows 7
how can i make an auto capitalized text after typing a period and two spaces in richtextbox?
View 1 Replies