I am making a security app. It searches for personal data as email-addresses and IPs, but the code to search for a ip-address is not working right! My scanner should manage to read the ip out of ex:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim i As Integer = 0
Do Until i = TextBox1.Text.Count
I am trying to do an if/then to check a textbox for text. I have a form that has name, address, etc. I need to make sure the form has a name in the txtName before it continues on.basically
If txtName has text Then 'continue about your business. Else err.message ("you need text.") end if
I have several textboxes trough which i add data in the database. after clicking the save button the data is added to teh database. and if i click again on the ssave button without changing the content of the texbox it adds the same data to the database. i have tryied using textbox.modified but it only works for blank textboxes. how could i prevent from adding the same data?
I am trying to do an if/then to check a textbox for text. I have a form that has name, address, etc. I need to make sure the form has a name in the txtName before it continues on.
basically
If txtName has text Then 'continue about your business. Else err.message ("you need text.") end if
[if me.textbox1.text= system.dbnull then msgbox("please inter a value")] it says system.dbnull can't be used as an expression so how can i check the if the textbox has a null value
Ive got a Form application in VB.NET.I have many text boxes on one form (about 20). Is there anyway to check them all at once to see if they are empty instead of writing out a massive line of code to check each one individually such as
If txt1.text = "" Or txt2.text="" Then msgbox("Please fill in all boxes")
How to only check that checkbox which is entered in textbox ? If i have 4 checkboxes eith text checkbox1, checkbox2, checkbox3 and checkbox4 and 1 textbox if i type in textbox 1,2 then only checkbox1 and checkbox2 would be checked again directly after doing that i type 3,4 in textbox then only 3,4 will be checked and 1,2 will be uncheked.. remember i wanna do this coding for unlimited no. of checkboxes .. so dnt provide coding for 4 checkboxes only.
I'm trying to check for the number of decimals in a textbox, but I'm not very successful so far:[code]How can I correct my code to make it work? Or any other/better solutions?
Is there a way to check if the user has changed the value of a textbox?I try to acces a variable in one of my methods to compare against the value but I can not seem to be able to access it?
How can i check the exact word in a sentence.even though it is a alphanumeric.
Example: I have a user define value of "hello! how can i help you?"Then it will automatically check if the user's input type the exact text.if not it will produce a said number of error.
Example:The user input a value is a "Hello. how can i help you." it will produce and error base on the input text of a user. Error:3 the error is "H,<.>,<.>"
i am probably overthinking this but how can i check the textbox for either a 655 or 699 in the first 3 numbers in the textbox? The current code i how now works but displays an error if (im guessing) it doesnt find the other number in the textbox as well:
I have two text boxes (txt1, txt2) and an exit button (btnExit)In txt1.Leave event; i have some validations. If validation fails then I keep the fous on txt1.If btnExit is clicked then I do not want to execute the validation and instead close the application.. How do I do it?
I am using VB.net to create a simple winform. I have the option to save the data I input on that form. I am trying to prevent the user not to save the data if textbox10 is empty. I tried the while loop but I go into an infinite loop. The code is below. The if statement gives the error but allows the user to save.
Im trying to get my code to check that my textbox has 16 digits in it so that it can then validate the number entered. Here is the doe i have so far: [code]
I've got a program and what I need is for a Timer (running in a different thread) to constantly be checking a TextBox for an entry that is similar to:Quote"(PlayerName)" has joined the server.Where (PlayerName) would be replaced with the players name in the TextBox. What I would need the TextBox to do after it has found this entry is to add (PlayerName) to a listbox. If someone can help me out this far then I can use the same code to get it to remove the player when they leave.Below is a picture of what it should look like inside the program.
If in textbox the default textbox value id 1,2,3,4,5,6 ...... upto 55then the following checkboxes would be checked according to the text display in text box...if textbox1.text =1,2,3 then in my webform checkbox1, checkbox2, checkbox3 would be checked ... on page load event...
I'm struggling with my computing coursework in college and I though My issue is simple but I can't get it right. I need to validate the text into a textbox and check that it contains ONLY alphanumeric characters, but it MUST contain both, not either numeric or alphabetic, but some of each.The textbox should store information about a Street address, that's why both the street Name and the property Number have to be input. Spaces " " and points "." should also be allowed.If it helps, something like "12" or "St. Davis Street" should NOT pass the validation checks, whereas "St. Davis Street 12" will do.I would like to get it done with regular expression as I've been using them throughout my work, but I don't mind other solutions.I'm using Visual Studio 2010 Professional, 4.0 framework and Visual Basic.
So I have a keylogger so everything I type shows up n the textbox I want to make it so if I type a certain word like a kind of password my application closes
I am having trouble using an If statement to check to make sure the value entered in a textbox is a double. I was told to use double.parse to check this but I can't get it to work right. Anytime I run the program and type text into the textbox, it tells me the code is not right.
Here is my
Dim DblFahrenheit As Double If TextBox_FahrenheitTemp.Text.Length = 0 Then MessageBox.Show("No temperature was given. Please enter a temperature to convert.") ElseIf DblFahrenheit = Not Double.Parse(TextBox_FahrenheitTemp.Text) Then
Now, when I say "word check" I don't actually mean spell check or something like that, I just couldn't find a good 1 or 2 words explanation. (I use Visual Basic 2010). Here is what am I interested in: For example I want to make answering bot and when I write a sentence in a textbox how can I check does that sentence contain one specific word, for example if I write: "I feel bad", how do I check does that sentence contain word "bad" or word "feel".
I need to check for specific words so that the program will know what smtp client will be used. For example. If the from textbox will have @yahoo.com on it then the program will make use of the smtp for yahoo.
I need to do a check on telephone numbers entered into a textbox.I know the regular expression for an email address but not to check a telephone number like such (000)000-0000
When I try to insert a value into table1 it will compare the table values if it is same, It Should throw a error msg "Name and Date Already Exist" otherwise Insert a value. Before Inserting i want to check a textbox value with table value.
