.net - Adapt Text Validation Function To Consider Selected Text?
Jun 4, 2010
I have this function which evaluates the contents of a textbox (or combobox or maskedtextbox) control and, in conjunction with a KeyPress event, will either allow or disallow the input. It is quite useful for dates or textboxes for which only numeric input is valid. It allows a set number of digits after a single decimal point, if specified in the function call. It also allows the backspace character if the textbox is full.
I would like it to allow me to input what would otherwise be valid text when the textbox is full but one or more characters are highlighted (and would therefore be replaced by the keypress character.
[Code]...
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Oct 14, 2010
I've been trying to convert my VB6 code to VB10, I'm stuck on how I should write it so I can pass a font name to my
function, So far this is what I have and not sure where to go from here. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
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Nov 12, 2010
I am using many text boxes in a form. How do i validate them, In certain text boxes I have to use only text and in some I have to use only numbers. Is using ASCII is a right method or is there any easier method to do this. If so please let me know the coding.
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May 19, 2008
I am starting out in Visual Basic.Net and need a bit of assistance.I am creating a Windows form (not controls).In this program, I am attempting to validate 2 different text boxes BEFORE the rest of the controls can be validated. For example:I have an authorTextBox and titleTextBox, which the authorTextBox MUST have some user input BEFORE the user is permitted to move onto the titleTextBox. (the user input can be fake like "John Doe", the point is to force the user to input something).The instructions that I was given is not very clear on how to code this properly in order to have the form show an error message requiring the user to input something in both textboxes before they are permitted to move onto the other controls.
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Jun 22, 2010
I have Three text Boxes and i want to use Cut, copy, paste method.But the problem is when i copy one text box matter and then apply Paste option through menu control ,then matter is displayed all three text boxes.
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Feb 21, 2012
PrivateSubtxtMchNoForFile_KeyPress(ByValsender
AsSystem.Object, ByVale
AsSystem.Windows.Forms.KeyPressEventArgs)
HandlestxtMchNoForFile.KeyPress
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Nov 2, 2010
I am trying to validate wether a number is a decimal in Visual Basic. The results I get when the number is valid the msgBox shows. When it is not valid, I don't receive the msgBox and the program crashes with an error message that number has to be less than infinity.I tried adding another If Not IsNumeric(txt1.text) then -- But received the same results.
Where did i go wrong?
If IsNumeric(txt1.text) Then
msgBox("good")
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Mar 14, 2010
I have text box where scores are to input between 0 and 100, they user also needs the option to enter a text word such as bye or BYE. I having problems getting the validation to work here is what i have so far please let me know what I'm doing wrong.
[Code]...
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Nov 22, 2011
I am trying to add text from a text box into a list box when the radio button unseperated list is selected. i can do this easily. howeve ri now wnat to put text into the list box from the text box when the sepereated by comma radio button is selected
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May 7, 2010
Ok so I have a combo box that lists a set of names. What I want to do is match a selected name to a text file and read from it. The text file contains the same name and has grades listed below:
ex.
Johnny Bravo
30
10
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Jun 7, 2012
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.
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Nov 18, 2009
I am trying to mkae sure that there has been 16 numeric digits entered into the masked textbox. If not show errror message and if so to call the fucnction ValidateLuhn. When calling Validate Luhn i want the program to tell me if the number entered is valid or invalid using the code in the function:
[Code]...
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Mar 11, 2010
Anyone 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#.
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Apr 15, 2012
I am doing form validation in VB, I validate the text field data by using txtName_LostFocus function, and on wrong input I used txtName.Focus(). It works well for me. But problem is that as for as, user does not input valid text, my EXIT button also does not works.
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Apr 5, 2009
When I read a value from text box I want to make sure user has entered a number(int/float/double etc.) not a string. Is there any function to check it? otherwise how do i validate it.
Language : VB.NET
Version : Visual Studio 2005
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Feb 14, 2011
Design a form, which contain a TEXTBOX control that accept a UserID input, with a CommandButton control to perform a validation based on the criteria listed below. Display a Message on whether the UserID is Valid.
Criteria:
The UserID must contains SIX digits follow by a single character, limit the entry to a maximum of seven characters only.
The postfix character of the UserID is derived from the summation of all the six digits divided by seven and using the remain as followed:
Remain
Character
0
A
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Jan 13, 2011
When I load the form where some text has been given to text box. All the text in that textbox is highlighted. I want vb not to load it this way.
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Apr 13, 2011
I'm making a custom control suited for handling passwords. I have created a control that inherits from a text box and I have implemented a lot of things so far. But what i want to do now is create a system so that when a user types It will display his last character typed for a X amount of time.Is there a way to turn only selected characters into password characters and still be able to get the password text from the Text property ?
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Feb 15, 2012
How can i get selected text in web page and put it on textbox? This is the text that i want to copy.
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Jun 5, 2009
Am trying to get the selected text of any opened windows application or IE or ms office applications,i was able to get the text with windows application adn ms office application using wm_Copy api function,but the problem was with internet explorer.I am 100% sure that this is doable well when you select any text on your screen and press ctrl+c you will be able to copy that text,so am sure there is some kind of apis that can get any selected text on the screen other than wm_gettext and wm_gettextlengh,so how windows is able to grab all the selected text on the screen is there anyway to capture any selected text on the screen and especially in internet explorer,is there anyway to get the ctrl+c functionality or how this function. So all i want is to get any text selected on the screen and put it in a textbox.(but not the wm_gettext because that doesn't work with ie).
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Sep 9, 2010
So i want my software can read any selected text of windows. That text can be in word, webpage , notepad
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Jul 12, 2009
I have a richtextbox, a textbox and a button, and a webbrowser
The richtextbox will load a site, ill tell you later now when you click the button what I would like is that it searches a text, which i will tell you right now, and it pastes it into the textbox.[code]...
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Jun 13, 2010
I need to retrieve only selected portion of a webpage (user open a webpage in web-browser control, then he/she would select some portion of a webpage, i just need only those selected portion/text) in vb.net in visual basic language.
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Feb 10, 2012
I'm useing WebBrowser1 and the code i use to get the text is[code]...
i want to make richtextbox that retrieve the selected text without the copy paste method.i want it to be sensitive to the mouse click so it can retrieve the selected text.
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Jan 12, 2011
I have a data grid view and i want to show the text from the first column of the selected row (regardless of what cell in that row is selected) in a text box.
So for example in this picture:
The 1st column of the selected rows text is 'California' so that should be sent to the textbox.
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Nov 7, 2010
how to Get text from Selected text focus without my application
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Sep 19, 2010
I have a data grid view that displays data from a SQL table.
I need to get the text from a specific column in the selected row on a mouseclick to use it in a new SQL query.
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Jan 25, 2012
[code].....
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Aug 17, 2009
I have a CheckedListView (suggested in a post I read, and it seems to fit my needs) which I populate with the filtered names of the files from within a selected folder. Then the user selects the ones to process, by using the checkboxes. So basically it is a single column text box with checkboxes down the left hand side.
What I've been trying to do is get the selected text (i.e. the name of the file) and put it in a string array for later use.
I've used various forms of: For each item as .....ListViewItem......Next and also various forms of for x = 1 to Listitem.count......Next
e.g.
CODE:
Ensuring that the filename text goes into the str array.
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Aug 19, 2009
I have this code but it deletes all of the instances of the text, so what would I use to simply delete the selected text after it's been copied and only that text? I've tried using the replace and remove but my methods with those arn't working.[code]...
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