The program consists of making 2 text boxes, one labeled Age, and one labeled Name.The Name text box must return the name in all uppercase.If the Age text box isn't filled with a numerical value, you should receive a message saying "need a number" and return your cursor to the age box.2 command buttons "Process" and "Exit"
I tried getting started, but I usually always work better when i have a beginning!
I am checking for empty string values, but how do i see for the Quantity text box if the user chose only numerical values after the empty string. For example...
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How do I take the input of a text box as as string and write out a procedure for a button that takes the input and outputs a variable in the list box. For example i want to assign various values to strings such as the price of a chair = $10 and price of table = $40 . How do would you write it so that when you click the button it takes the word chair in the text boxs and outputs a value in the list box.
View 1 RepliesI'm trying to write a Database manager in VB (2010) that updates a SQL database that compiles and summarizes my financial records. The code works, but I'm having issues with one exception that I think I understand, but can't circumvent. I've built an I/O form that enters a series of purchases and sales into a temporary datatable. After review of the list, the program connects to the database and executes the SQL. That all works and isn't a problem.
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I wish to extract numerical data from a text file and plot the data on a graph using the Zengraph classes. Each record has five variables.
I attempted to use the split function but failed to successfully get past one record.
1) How does one create an array or arrays using a text file containing many records, each with five distinct variables?
2) Is it better to create a number of single-dimension arrays or create one multi-dimensional array?
3) Is it easier to somehow convert a text file to an Excel file, with each variable in its own cell and each record on one row?
I have created a program and would now like to stop users from entering incorrect values/Text inside specific textboxes. For example i would only like text to be entered when a customer name is to be inputted and if a numerical key is pressed a message box will appear saying "sorry letters only" or something in that line. Also waould like it the other way round when trying to enter text within a number only text box.[code]...
View 1 Repliestext automatically filled when the process starts CONTINUED
View 3 RepliesIf I make a button that starts command prompt:
Process.Start "cmd.exe"
I want text to be entered as soon as it starts. Like "ipconfig" is typed in by the pc, and hit "enter" automatically.
I'm using Visual Basic 2008 Express Edition, so I have a combobox that gets filled with items from a data base made with Microsoft Acces, the combobox is filled with the values stored in a column from a table in de database so the user can select an "option" from it, I want to add labels that show the values for the corresponding row of that column. I used the Data Source panel to drag and drop the labels corresponding to the values that I want and it works it show the value that I want when I compile the application (at least I think it does, it could be that it's only selecting the first entry) the problem is that when I select a diferent entry on the combobox the labels don't refresh with the new values. How can I do that?
edit
how does Visual Basic Populates de combobox and gets the value of the other Acces DB entrys to change the .text value of the labels? And I mean the actual code that does that.
okay so i was thinking of making a program that can take a text file filled with code so the text file would look like this
Title{Text = blah blah; text = blah blah; Title2{Text = blah blah blah; text = blah blah blah;} }
and have the program display
Title
Text = blah blah
text = blah blah
Title2
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I want my text box to filled by an alphabet first then the remaing characters can be anything. Also i have drop down which is having arithmatic functions.(< ,> , = ,+ etc) If the user selects < or > then the value entered in the text box should be numeric. and if the user selects "=" then the textbox value should be string.
View 1 RepliesI want a prompt. Like
Process.Start("cmd.exe")
My.Computer.Keyboard.SendKeys("net users" & vbCrLf)
If you enter "net users" in the command prompt all the local users on the pc appear. I want a textbox in my app, that if a user types in "kyle", and click the button, the first code I gave starts, and after "net users" the text in the textbox is there as well, so it will look like this:
net users Kyle
Im Using a datagridview to display items in an invoice. when the user enters the data in, they use a DGVcombobox to select which particular item they want. what i want to know is. can i change the text of the combobox programatically after the items have been filled
Edit The DGV in question has 2 predefined columns one is a comboboxcell and the other is a text box cell im trying to fill it using
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If it is at all possible, I would like to print a page that is layed out with labels filled with text from previousley stored information from the program. now, obviousley, because the text can change in amount, and so the labels need to be able to change in size, and if at all possible allow multiple lines, though if there is no way to do it, then an unchagable text box would serfice.
There is a problem though, the fact that the labels will be changing size means that the position of the labels needs to be variable to the previouse. Example: the box above needs to be bigger, so the box bellow needs to drop down equall to the amount that the above grows.
what I am trying to do it read a form of hex that is encoded I know the cypher what I want to do is make a program for myself that will let me compare 2 files. Both in hex decypher the hex to numerical.I call the hex backwards hex what I mean is this..in stead of "04 58 d2 d2" it is "d2 d2 58 04" I know the number it translates to is 72930002I want to show the entire list in a list box where I can choose wich I want to look at.
View 8 RepliesSo i have a text in my textbox something like this: [code] Let say that text is divided in 3 fields. Name, Age, Salary. Each field is separated by "*"How do i check if there is no empty field using VbNullString?And how do i check if the second and the third fields are numerical?End the execution if the fields are not correct with a message
View 7 RepliesI have code that gets the numerical value of letters in a txt file, it returns a 77 for an M for instance.Anyways so M(077) is the first value i get, and becuase its the first i need to have it effect the first pixel in my image (0,0) i need to take the first value of M 0, and put it in for reds ones diget, lets say 120, i need to put the second integer 7 in the greens one place 127, and i need to do the same with blue, also 127. How do i do this? Hers some of my code.
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im looking for a code setup where the program can get a numerical value based on letters in a user inputted string, and output the value A=1, B=2, C=3, etc
View 19 RepliesI have an issue in which I am binding a table from sql by executing query[code]...
View 2 RepliesIn my form I am able to search the record within a date range from MS Access database and display it on a ListView by using the following code :
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Would it be possible to take the numerical contents of a textbox that looks something like:
100
300
456
674
50
25
and on button click have them added together and display the total on a label.
I am trying to figure out if i can assign a numerical value to an item in the check box. I have two forms one with the checkbox and another that will show the total amount based on what was checked in the checkbox.
View 2 Replieswhat code i could use to convert american number 1-10 to roman numericals. It says i have to use a select case statement to identify which roman numeral is the correct translation of the integer.
View 12 RepliesIs there a way to USE the input from your microphone and speech recognition to convert the tone and frequency of a voice into a number and then match it against a database for a single spoken word. When ever I type voice recognition it just gives me how to listen to what someone is saying i have source code for that but I want to create a verbal authentication for my house. That way only certain people can give commands for the wireless modules to turn stuff off. and if some random person says off or something of the nature it wont just turn shit off, also im goign to make it into a verbal password system for my email.
View 5 RepliesI am looking for a way to convert the Arabic numerical string to an English
numerical string "0123456789"
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
dim Anum as string =
dim Enum as string =get_egnlishNum(Anum)
End Sub
private function get_egnlishNum(byval _Anum as string) as string
''converting code
End function
When I go to run the program and try it out, I keep getting my error message that I am not putting in a numerical value even thought I am.
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I'm trying to change the string value (123A456B789) into a numerical value like this '123' 'A=0' '456' 'B=1' '789', but for the same reason as saving the time in writing 50 lines just to incorporate this function I need a quicker solution...
Here's my code but bare in mind I am still new at VB.NET and the code is only to change A and B to numerical values.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
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I have nine always changing values that are strings I need to know how to sort them. I have each of the nine values each on it's on panel. I want to make the panels stack highest value to lowest value. Shot of writing every possibility of combinations and let's say that would take forever.
View 2 RepliesI want my code to look at a textbox to determine which letter is in it, & assign a numerical value to a second textbox, based on what letter is in the first textbox.[code]The problem is that, when I step through the code, I can see that Form20.txtGrade1.text DOES EQUAL "C", but my code skips over the part that says Form20.txtGrade1a.text = "4". Instead, if I hover over that part, I can read Form20.txtGrade1a.text = " ".When I do not step through the code, and just run it, I see the two textboxes, with the first one containing the C, and the second one is just blank.
View 4 RepliesI've made a temp converter and i'm looking to get some validation for it. I have looked online, but most do it in a way that i don't want.
I have 3 text box's, of which i only want numerical values and nothing else to be entered into the boxes. However, i would like the validation to run when a button is pressed (in this case, the calcualtion button). I would like a messagebox to pop up stating there is a non-numerical value entered into any of the boxes and for the calculation code to not run.
