Keep Text In Textbox Same While Changing An Integer Value?
Jun 27, 2012
I am new to Visual Basic 2010, but I have been trying to make a line reader with an imported text document into a RichTextBox through an internet source.
I want the RichTextBox's line zero (the first line) to really be line one, but without changing the text in the TextBox to show the change. In other words, I want that change to happen in the background of the program.
I have tried... taking the text from one TextBox and putting it into another, while subtracting an integer value of onean attempt to use a timer to copy the text from one TextBox to another to read the line properly.
I have tried a couple of other things too, but most of them were much more complicated and I could not really explain what each thing did.[code]...
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Aug 1, 2009
Im having trouble changing the value of a textbox to integer. I want the user to enter a start number in the textbox, then when the user presses the button +1 that number is incremented by one.
This is what I have and it does not work Dim TestNumber1 As Integer TestNumber1 = Integer.Parse(TestNumber.Text) TestNumber1 = TestNumber +1
does anybody know of any good Visual studio 2008 books to help me with code. I used to dabble in QBASIC and finding the changover quite difficult.
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Apr 26, 2009
A] Is there any way of stopping a user from entering text or changing text in a textbox without disabling it or
B] Is there a way of changing the texboxes back and fore color whilst it is disabled?
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Mar 7, 2011
I am trying to understand the do until loop when adding numbers along with a variable to a new line in a textbox, incrementing each time. My current example is very simple but only returns the first value. I require the output to be incremented automatically, so I thought a do until loop would be best.
[Code]...
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Jun 4, 2011
I want to change some text inside a textbox when a checkbox is checked. I tried many things, but none seems to work. I need that, when checkbox gets checked, the textbox value gets deleted from backwars until a dot. Then, place another predefined text immediately after this dot.
[Code]...
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Feb 22, 2010
How do I add text to a TextBox instead of changing the textbox as a whole. Also, how would I make a newline when adding to the textbox?
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Oct 20, 2010
I'm making a C++ code editor application using VB.NET. I'd like to change the color of the keywords as the user types it. Also I'm looking for a way to highlight some lines of the code.
Is there a way to change the forecolor and backcolour of a piece of text inside a textbox or a rich textbox?
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Feb 1, 2012
I have VB.NET code that is called when the selected tab index of a tab control changes, I am trying to get the code to change the text in a text box to the URL of the web browser control that when the tab changes. I have the code below, however it gives errors:
AddressTextBox.Text = CType(TabControl.SelectedTab.Controls.Item(0), WebBrowser).Url.ToString
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Oct 12, 2011
When a SelectedIndex in a ListBox is changed I would like a textbox below the listbox that gives a description to be populated with the value from a description field in SQL.I have the following code so far, but I get an error that says "Must declare the scalar variable "@ReportName"
[code]...
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Sep 17, 2010
I have a program that is reading an Excel (xlsx) file and I am trying to take the data found in one of the cells and split it based upon the '@' symbol inside that cell. Here's an example: value in cell is "XXX @ YYY" I declare 3 strings (strOriginal, strA, strH) strOriginal is the value from the cell ("XXX @ YYY") then my code is supposed to split up the values in the Original string based upon that '@' symbol.So when my code is done, strA should = 'XXX' and strH should = 'YYY'.
Here is my code
strOriginal = dtbExcelData.Rows(0).Item(0).ToString
y = strOriginal.IndexOf("@")
strA = strOriginal.Substring(0, y - 1)
[code]....
For some unknown reason, the y integer (in this case, it is '4') changes to a random number (it has changed to 44, 61, 124) and causes the error "Error with Excel file: Index and length must refer to a location within the string. Parameter name: length" to occur.I understand why the error occurs (my y integer is not staying at 4)...I just don't understand why that y integer is changing numbers when it should remain as the indexof the '@' symbol. I'm looking for any suggestions on how to pull out the data after the space after the '@' symbol (the 'YYY' portion of 'XXX @ YYY'). Also sometimes the 'YYY' is only 'YY' as well.
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Sep 13, 2010
can someone put his/codes in with..i have my own but it didn't add when i tried to put another integer on my textbox.
it will just update the first integer i put..
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Jan 31, 2007
I have three text boxes in a winform (.net 1.1).
I am expecting the user to type in a positive number or just to leave it as zero (default).
Is there a way that I can check that the user has typed in a number rathet than letters.
As I am coding it in VB.NET, I would prefer it if any answers where in VB style rather than C# or C++.
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Jul 10, 2011
Basicall, all i need is some simple code that will check if the value in a textbox is a positive integer or not. Something like this:
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Mar 14, 2012
I'm using VB 2010. What is the best way to convert a textbox to an integer?
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Nov 9, 2011
i'm looking for a VB code to format integer into 5 digits and then after that auto increments like (00001 , 00002, 00003) And they are used in a text box field.
Scenario Example : When the user clicks on Add New Record. The empty id text box field will automatically insert a number 00001 on the textbox and if there user wants to add another record the number goes 00002 and so on.
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Aug 18, 2009
Is there a easy way to input a string or integer into another exe's textbox for example, if i wanted to write into the textbox on the windows calculator '3'.
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Mar 5, 2010
i am trying to make a program and i only want the user to be able to enter numbers and use the backspace this is my code so far.
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Dim allowedChars As String = "0123456789"
[Code]....
i have tryed adding "ascii char (08)" to the program but its not worked
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Dec 14, 2009
I have a question regarding using a TextBox in second form within the same project. Currently I am using two forms. From the main form you can click a button which opens the second form. There, I want to type in an integer value into a textbox and use it for the code in my first form. Here's my
[Code]...
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Mar 19, 2010
My friend and I are taking a visual basic online class. We are total beginners and are having trouble with a programming assignment. We have to create a arithmetic calculator with an enter button multiplication button and an addition button. What we can't seem to code properly is the event handler that allows us to use the enter button when we type in an integer in the textbox. This assignment is detrimental to our grade!
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Aug 22, 2009
I am getting error on the following code
Private Sub tot()
Dim temp As TimeSpan = TimeSpan.Parse(wetothrs0.Text)
wtothrs0.Text = temp.ToString
Dim employeeCost As Integer = CInt(temp.TotalHours)
wtotcost0.Text = employeeCost * hrate0.Text
End Sub
wtotcost0.text is a textbox
employeecost is integer
hrate0.text is integer that is coming from database
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Sep 12, 2011
In a textbox on my form, I have a value that loads in it that is something like "10.38 - 12.33"
I want it to where the textbox will display whole numbers only. So it will show "10 - 12"
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May 7, 2010
my puzzle have random characters. and i want the colour of the character to change when i retype it. Lets say R... i backspace and retype r but there's coulour. can i know how?
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Dec 7, 2010
LblPPG.Text = Val(TextBoxPP.Text) / (TextBoxQTY.Text)
This is the only way I know how to obtain the info I need for this equation but if generated again with no input from the textboxes I get an error. Is there anyway to bypass this if its generated a second time with no inputs?
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Apr 11, 2010
I have a visual basic .net application. It has a sql server database and a dataset for it. I have created an interface to the database (passing through my dataset) to add, delete, save etc records in a table.
The ID entry has identity specification:Yes and increment seed 1 When I add a record, instead of giving 1,2,3... as id in the textbox it produces -1,-2,-3 (Negative integers)
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Feb 11, 2011
I have a textbox that is filled by the method [code]...
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May 26, 2011
I'm using visual basic to code a program to help with weights and center of balance on aircrafts, as I'm my unit's new air load planner. The math isn't hard to do, it's just that much of it is trial and error, and redoing all the arithmetic over and over again until the aircraft's C/B is in acceptable limits can eat some time up. So, since i'm trying to learn programming I thought this might be a good way to use it for a real-world scenario.
[Code]...
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May 11, 2009
I have designed a form with textboxes for numerical entry. I need to validate each textbox so the number entered is an integer, and is between 0-1000. I am struggling to find how to validate the data entry.
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Nov 10, 2011
I'm developing a program at the moment and I'm trying to add the capability to add a texbox everytime you click a button. This is simple other than I'm trying to be efficiant as possible, so I made a sub that creates the textbox and the button calls the sub. Here is where it gets tricky I want the new textbox to move just below the previouse textbox, I'm not sure how to do this since Im only really createing one textbox over and over and having a variable name it by one. This souds confusing I know, but check out my code and it will make since. Really all I'm trying to do is change the location of a unknown textbox say since I create a textbox name textbox0 then when I hit the button again my varibale goes up by 1 which makes the new textbox, textbox1. how to I tell VB to change textbox1's location....
Code:
Public
Class
frmExpenses
'I made everything public because I'm runnings a test timer which are sending realtime data to some labels
Public i
As
Integer
[code]....
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Aug 2, 2010
I am working on a a program that uses a textbox to display data from a telescope. Normally the data is standard ASCII characters, but there is one time when the data is displayed as blocks to indicate the number of degrees to go. The textbox font is set to Sans Serif in the property box. When I show the blocks, I want to switch to Wingdings. I have searched how to change the textbox font and tried several ways found, but none of them work. I know that the textbox will handle Wingdings - I can set the font property and it displays correctly.
The most common method I have seen is: txtDisplay1.Font = New Font("Wingdings",26.0, FontStyle.Regular) ,but like all the other methods tried, the font never changes.
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Jan 22, 2010
In my form there is a AXVS Flex Grid and a textbox.Firstly the textbox will not visible. When the focus will be on a particular column of the flexgrid then the textbox will be visible and the flex will be disable.The position of the text box will be at the bottom of the particular row at the first time. But when another row is inserted then i need to change the position of the textbox to the botoom of the new row and so on.
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